Upload
american-research-thoughts
View
247
Download
0
Tags:
Embed Size (px)
Citation preview
1607
AMERICAN RESEARCH THOUGHTS ISSN: 2392 – 876X Available online at: www.researchthoughts.us
http://dx.doi.org/10.6084/m9.figshare.1431580
Volume 1 │ Issue 7 │ May 2015
Impact Factor: 2.0178 (UIF)
DRIVING FORCES OF DEVELOPMENT
CHANGE:
CASE OF A CARRIBEAN ISLAND
Haven Allahar1, Kenneth Snaggs2
1Arthur Lok Jack Graduate School of Business, University of the West Indies and
Socioeconomic Planning Consultant, APDSL
2Land Use Planning Consultant, APDSL, Trinidad and Tobago
Abstract: The purpose of this paper is the formulation of a framework for assessing development
change in small developing countries modified for application to small islands, and further, to propose
a development process to be used alongside the framework. The methodology utilized in the case study
involved research of official published documents, analysis of relevant statistical data, and application
of Landsat imagery for producing a land cover map. The main finding is that the existing assessment
framework developed by the European Environmental Agency does not fully fit the conditions in
small islands and has to be modified for implementation which is better used in combination with a
development process that provides a better fit for purpose. The modified framework and the detailing of
a new development process presented in this paper are original in the suggested applications and will
be valuable to the agencies that carry the responsibility for undertaking environmental and
development assessments in small countries.
Key Words: Driving forces; Development change; Land use; Land cover change; Small
islands; integrated environmental assessments; DPSIR framework.
1. INTRODUCTION
This paper sets out to examine the applicability of the environmental assessment
framework which was developed by the European Environmental Agency (EEA) in
1999 and presented as a causal chain of Drivers-Pressures-State-Impacts-Responses
framework (DPSIR). This paper will adapt the EEA framework to the case of the
Haven Allahar, Kenneth Snaggs- DRIVING FORCES OF DEVELOPMENT CHANGE: CASE OF A CARRIBEAN
ISLAND
1608 AMERICAN RESEARCH THOUGHTS- Volume 1 │ Issue 7 │2015
Caribbean island state of Trinidad and Tobago (TT) to demonstrate its applicability at a
small scale. An additional purpose is to present a complementary development process
framework which can be applied alongside the DPSIR to provide greater relevance to
small countries.
TT is a country located at the end of the Caribbean chain and comprises two
small islands with Trinidad as the main island of 4,828 square kilometres with a
population of 1.3 million people, and Tobago significantly smaller at 300 square
kilometres in area with a population of 55,000 people. The economy of Trinidad is based
on the drilling and production of crude oil and natural gas and the manufacture of
petrochemicals, while Tobago is tourism oriented. The economy of the country is
sustained mainly by the petroleum sector which accounted for an average of 42 percent
of the gross domestic product (GDP) of the country over the period 2009 to 2013
(Central Bank, 2013).
2. RESEARCH METHODOLOGY
The methodological approach employed in this case study included: research of
published documents to confirm the components of the driving forces of development
change and to determine the resulting impacts and official responses; extraction of raw
statistical data from official databases for analysis of the key socioeconomic forces;
identification, listing and description of large-scale discrete land uses and types of
development which significantly impact the environment; and the use of Landsat
imagery as the foundation of the categories of land cover.
3. BACKGROUND AND CONTEXT
The paper explores the issues related to the driving forces of change as they are
categorized in the literature, and the practice of land use planning as applied in small
developing countries. The context for the assessment of the driving forces of
development change is presented through the application of the DPSIR framework
which, according to Carr et al. (2007), originated with the European Environmental
agency in 1999. It was noted that the creation of integrated assessment frameworks for
analysing development changes has long occupied the energies of development
agencies and researchers, and the search picked up momentum with the entry of
Haven Allahar, Kenneth Snaggs- DRIVING FORCES OF DEVELOPMENT CHANGE: CASE OF A CARRIBEAN
ISLAND
1609 AMERICAN RESEARCH THOUGHTS- Volume 1 │ Issue 7 │2015
environmental issues and climate change into the discussion. In accordance with this
framework, there is a chain of causal links which all together impact the human and
natural environment. The chain comprises: driving forces which are the critical social
processes that direct human activity; pressures which include both human action and
natural forces; state which reflects the current environmental conditions and trends;
impacts which record the changes that influence human well-being; and responses
which are the institutional actions taken to mitigate negative impacts (Carr et al., p.
545).
The DPSIR has become a tool for assessing the state of the environment and was
applied to areas of activity such as water issues where a conceptual framework was
devised for assessing limited freshwater resources and identifying inland waters in
South Africa (Kristensen, 2004).The DPSIR was also applied to Cairo to examine and
classify land use and land cover (LU-LC) changes and determine the resulting linkages
and impacts (Hassan, 2013). Further, an integrated environmental assessment was
conducted for a wetlands district of Bangladesh and concluded that an integrated
management plan was needed which should include a buffer zone in allocating land
uses in the area (Ahmed et al., 2015).
While the DPSIR is increasingly used in environmental assessments, certain
criticisms of the framework were summarized by Carr et al. (2007) as: utilizing stable
indicators which ignore changing system dynamics; incapable of determining trends
without repeating studies at regular intervals; excludes clear cause-effect relationships
for environmental problems; and employs a linear analysis for complex problems (pp.
545-546). Carr et al. also identified issues with the DPSIR in its application to
developing countries which included: discounting of local knowledge because of the
developed-country bias in the assumptions of the framework which uses
predetermined categories; focusing on large scale at the global level which may not be
applicable at the smaller scale of some developing countries; reduced emphasis on
sustainable development by not paying sufficient attention to social diversity and
gender issues as central factors (p. 551). The overall conclusion by Carr et al., was that
the DPSIR can be applied on a limited basis to local-scale studies by accounting for the
‚nuanced understandings, inputs, opinions, and goals of multiple stakeholders‛ (p.
552). To the extent that the framework promotes effective environmental management,
Turnbull (2004) argued that, in the case of developing countries such as the Fiji Islands,
Haven Allahar, Kenneth Snaggs- DRIVING FORCES OF DEVELOPMENT CHANGE: CASE OF A CARRIBEAN
ISLAND
1610 AMERICAN RESEARCH THOUGHTS- Volume 1 │ Issue 7 │2015
the political, social, cultural, and economic factors must be included in considering any
assessment or management framework (p. 74).
The practice of land use planning is relevant to the assessment of development
change because, according to Godschalk (2004), land use planning is expected to deliver
‚sustainable development and livable communities‛ (p. 5) which constitutes the main
challenge of the discipline in terms of resolving the inherent conflicts in achieving those
ideals. It was asserted that land use planning was required to address the three
dimensions of the spatial world which included the sustainable development value-
conflicts of ecology, economy, and equity to which Godschalk added livability.
In the particular case of managing adaptation to environmental change in small
islands in the Caribbean, Lane et al. (2013) highlighted the vulnerability of small islands
to pressures which are often concentrated because of scale. Further, small scale provides
constraints such as ‚limited access, accommodation space, infrastructure, and economic
and institutional capacity‛ (p. 470). The authors concluded that small islands need to
adopt ‚best practices in land use planning, emergency preparedness, institutional and
governance coordination, infrastructure design and construction, and public
communication and education‛ (Lane et al. 2013, p. 470).
With respect to land use structures, Salvati and Carlucci (2014) argued that urban
growth issues should follow an integrated approach which incorporates socioeconomic
and ecological components in understanding spatial distribution of land. The rationale
provided is that suburbanization dictated significant changes in land use structures on a
regional scale by modifying the socio-ecological relationships between urban and rural
spaces (Salvati and Carlucci, 2014, p. 1). Salvati and Carlucci further observed that
urban planning and socioeconomic policies in support of sustainable development
benefitted from an assessment of landscape structure and land use changes. Further,
land use changes were influenced by socioeconomic dynamics which often lead to
transformation of landscapes on a wider spatial basis (p. 2).
The issue of climate change is much debated as to the urgency for action,
especially in island communities. In this context, Hills et al. (2013) acknowledged that
climate change is likely to have a range of impacts on the current and future
development of the Pacific Islands and supported an applications-based adaptation
approach which integrates sustainable use of biodiversity and ecosystem services as a
comprehensive strategy (p. 455).
Haven Allahar, Kenneth Snaggs- DRIVING FORCES OF DEVELOPMENT CHANGE: CASE OF A CARRIBEAN
ISLAND
1611 AMERICAN RESEARCH THOUGHTS- Volume 1 │ Issue 7 │2015
4. DESIGN OF A MODIFIED DPSIR FOR SMALL COUNTRIES
While the DPSIR has been acknowledged as a major tool for understanding changes in
the environment of advanced countries and has also been modified to apply to specific
issues such as water resources, it has not been widely used in small island states. This
paper will adapt the framework to the Caribbean island state of TT to demonstrate its
potential applicability even if the drivers of change differ from the standard indicators
in common usage. For the purposes of the current discussion, the key driving forces
relevant to the small islands of TT are presented as social, economic,
governance/political, LU-LC, and environmental sustainability forces. A modified
DPSIR (M-DPSIR) framework was constructed to concretize the issues relating to the
pressures created by these driving forces, the environmental conditions created, the
human and natural impacts, and the responses generated at the national level to
address the impacts (Figure 1). The authors propose the use of the modified framework
in TT for assessing the state of the environment and development change on a limited
basis as suggested by Carr et al. (2007) in the context of developing countries.
4.1 Driving Forces
The main social force that typically drives development change is population
characteristics, in particular the rate of growth. When applied to TT, the social forces
are: population growth which creates demands for shelter, recreation, education
facilities, health facilities, entertainment, jobs, transport infrastructure, and public
utilities; inward migration which influences the location of demand for housing and
other facilities; poverty which leads to a search for livelihoods (subsistence agriculture)
and housing space (squatting) often resulting in inappropriate use of land; cultural
practices which have many positive but also negative behavioural implications, such as
misuse of the environment, lack of understanding, care and sensitivity by users for the
environment, and lack of knowledge of interconnectedness between land use,
development actions and environment; and increasing prominence and direct
contribution of non-governmental and community-based organizations in activities
which embrace environmental restoration and preservation.
The economic forces constitute: the opportunities for converting natural mineral
resources such as oil, gas, stone, sand and asphalt to marketable products involving
exploration, extraction, and production activities; policies and programmes on the use
Haven Allahar, Kenneth Snaggs- DRIVING FORCES OF DEVELOPMENT CHANGE: CASE OF A CARRIBEAN
ISLAND
1612 AMERICAN RESEARCH THOUGHTS- Volume 1 │ Issue 7 │2015
of developable agricultural lands to satisfy the demand for food and achieve the goal of
food security; growth in international trade with liberalization and globalization
generating increased demand for air and sea ports; pursuit of business opportunities in
both the traditional sectors (such as retail trade) and development of new green
businesses involving recycling and reuse; establishment of industrial estates and
business parks to utilize oil and gas resources and diversify economic production away
from traditional energy activities to knowledge sectors such as ICT and downstream
energy products; increased construction activities leading to more quarrying and
production of construction materials; demand for modern internal communication in
the form of roads, highways and water transport facilities to transport people and
goods; and creation of key infrastructural elements including transportation and
public utilities such as water mains and waste water facilities, electricity and telephone.
Governance/Political Forces include: development policies as they relate to choice of
industries and geographical locations; development strategies such as alliances with
foreign entities to pursue projects and the scale of development projects; strategy of
centralization versus decentralization of governmental activities which influences
location of building facilities leading to intensification in urban centres or dispersion;
political governance policies to devolve authority to local levels; and policy approach to
conservation of the natural environment and the built heritage.
LU-LC: As small islands, the impacts of land use changes and destruction of land cover
in TT are magnified when compared with larger countries. Therefore, even small
changes in these indicators can be linked to major negative consequences for the
population and for overall environmental sustainability as the ultimate goal of
development policy.
Figure 1: Modified DPSIR Framework for Application to Small Countries like TT
Haven Allahar, Kenneth Snaggs- DRIVING FORCES OF DEVELOPMENT CHANGE: CASE OF A CARRIBEAN
ISLAND
1613 AMERICAN RESEARCH THOUGHTS- Volume 1 │ Issue 7 │2015
4.2 Pressures
In the particular case of TT; the main pressures involve: rapid urbanization; heavy
Industrial development; and increasing demand for land and water. The built
environment is relatively urbanized with most services located in the capital city and
other urban centres which have led to the problems of urban sprawl and traffic
congestion. For very small islands, the country has a major heavy industrial sector with
oil exploration and refining, liquefied natural gas, steel manufacture; and
petrochemicals of urea, ammonia, and methanol forming the base of an export sector.
The small scale of the land space has driven a demand for land for housing and other
built uses which in turn fuel a demand for water for residential, commercial, and
industrial uses.
4.3 State of the Environment
As a result of the driving forces identified and the pressures faced, the current
environment of TT is marked by urban centralization mainly in the capital city where
major resources were allocated to construction of office buildings. More recently, a
limited process of decentralization was initiated but not in consonance with a
comprehensive economic or land use plan. Agricultural activity, apart from vegetable
farming, is in rapid decline and combined with urban centralization has generated
significant informal housing, destruction of the landscape, incursion into wetlands, and
danger to sources of water resources.
4.5 Impacts
The impacts of the driving forces and pressures and conditions created in the
environment are increasingly severe especially in the areas of traffic congestion where
gridlock is experienced regularly despite new roads and highways construction. Heavy
automobile usage creates pollution and catering to the needs of automobiles leads to
alienation of fertile land for road construction. TT is also prone to hillside degradation
for construction of formal and informal housing, and subsistence agriculture which
result in flooding during the period of heavy rainfall. As small islands, the effect of
climate change is reflected in increased erosion of coastal areas which impacts housing
and beach resorts.
Haven Allahar, Kenneth Snaggs- DRIVING FORCES OF DEVELOPMENT CHANGE: CASE OF A CARRIBEAN
ISLAND
1614 AMERICAN RESEARCH THOUGHTS- Volume 1 │ Issue 7 │2015
4.6 Responses
Adequate responses must emerge from the official levels if the impacts of development
change are to be satisfactorily addressed. The responses should involve: formulation of
a policy framework with specific policies devised to target key activities that threaten
the quality of life of the population; introduction of formal plans at the national and
regional levels based on widespread stakeholder consultation; approval of legislation
which is solution oriented rather than prescribing negative incentives; and assigning
responsibilities to specialized management agencies to monitor action and record
progress on improvements in environmental management. In the TT case, a policy
framework is lagging but a national physical development plan and a nation spatial
development strategy were prepared in 2012 while regional plans were prepared in
2010. The legislative framework is in place with the existence of laws governing land
use planning overseen by the Town and Country Planning Division, and immediate
environmental issues regulated by the Environmental Management Authority.
The argument in this paper is that the EEAs framework is of limited applicability
to the state of the environment of small islands but could be modified, as presented in
Figure 1 to enhance its usefulness.
5. DEVELOPMENT ASSESSMENT FRAMEWORK FOR SMALL ISLANDS
This paper acknowledges that the original DPSIR can be realigned to the specific
circumstances of small countries like TT but will have limited applicability until, as
argued by Carr et al. (2007), a new framework is devised which accounts for issues of
power, informal responses, local knowledge, and diversity which are issues critical to
small societies (p. 552). Towards this end, this paper proposes a development
assessment framework for small islands (DAF) presented as a six-step process which is
suggested for use with the DPSIR for assessing the progress of development activities in
small islands. The DAF is highly appropriate to TT as it identifies the key actions to be
taken on a step by step basis which makes the process easily understandable and, as
such, more likely to be implemented. The steps proposed comprise: identification of
driving forces which is consistent with the DPSIR; specific mandates and directives;
outline of strategies and programmes; highlights of the development areas and projects;
physical development as demonstrated by LU-LC; and the critical environmental
impacts (Figure 2). The details already covered in the description of activities under the
Haven Allahar, Kenneth Snaggs- DRIVING FORCES OF DEVELOPMENT CHANGE: CASE OF A CARRIBEAN
ISLAND
1615 AMERICAN RESEARCH THOUGHTS- Volume 1 │ Issue 7 │2015
M-DPSIR are not repeated in the analysis of the DAF and only additional insights are
provided.
5.1 Step 1: Driving Forces
The DAF identifies the key driving forces as social, economic, and governance/political
which is consistent with the M-DPSIR. The commonly used definition of driving forces
in TT is considered as any natural, human, or institutional factor that directly or
indirectly explains impacts on an ecosystem. Within this definition LU-LC are
considered direct drivers because they influence the pattern of land use and land-cover
change through agriculture, housing, infrastructure, mining, and related activities
(although some human actions such as pollution and hillside degradation have direct
impacts), while institutional, human, or natural actions are considered indirect drivers.
The role of population growth as a major driver is relegated to lower prominence
in TT because the non-institutional population of the country has remained relatively
stagnant over the past eight years and recorded at around 1.3 million persons (CSO,
2012). In growth terms, the population growth rate has not exceeded 0.5 % per annum
and grew by 0.4 % in 2011 over 2000. In respect of the age composition, the major
feature is the aging factor with persons 60 years and over accounting for 13.4 %
compared with young persons of 24 years and under representing 36.6 %. From a
gender view, the population is essentially evenly divided with males constituting 50.2
% and females 49.8 % (Ministry of Finance and the Economy, 2014). The main
implication of the population growth statistics is that the impact of population as a
driving force in land use change will be reduced as the population stagnates. However,
for the period under study, the effect of population as a driving force was demonstrated
more through pent-up demand for shelter and other facilities rather than mere
population growth as reinforced by increased incomes and prosperity of individuals
and families. The specific social, economic, and governance/political forces outlined
under the M-DPSIR remain relevant here.
5.2 Step 2: Mandates and Directives
This step covers the strategic directives of ministries especially in transmitting policy
guidelines and harmonization of plans of all relevant state agencies. More particularly,
the most important part of the DAF is the legislation for control of land use and
management of the environment, namely the Town and Country Planning Act, Chapter
Haven Allahar, Kenneth Snaggs- DRIVING FORCES OF DEVELOPMENT CHANGE: CASE OF A CARRIBEAN
ISLAND
1616 AMERICAN RESEARCH THOUGHTS- Volume 1 │ Issue 7 │2015
35:01 (TCP Act) and the Environmental Management Act, Chapter 35:05 (EM Act),
respectively. There are other acts and regulations which provide control over various
resources and activities relevant to LU-LC, but these key pieces of legislation establish
the statutory measures for controlling the change of use of land and the process of
development and for managing the environmental consequences of land cover changes
and other environmental impacts of land use and development.
The statutory powers in the regulatory system can only be applied directly in the
control of development. However, changes in LU-LC are the result of development;
thus, in a broad sense the regulatory system is a common framework incorporating all
of the relevant factors and parameters required for the analysis of change at the overall
national level as well as the regional level. In terms of relevant policy promulgation, a
national environmental policy (NEP) was developed to: prevent, reduce or eliminate
various forms of pollution and where possible to recycle waste, to ensure adequate
protection of the environment and consequently the health and well-being of humans as
well as the fauna of the country; conserve the vitality and diversity of the natural
environment through the conservation of ecological systems and biodiversity which is
pursued by the mandatory replacement of mangrove cover through the policy of ‘no
net loss’; and develop within the carrying capacity of the environment through physical
development and planning, sustainable use of renewable resources, and the
conservation of non-renewable resources.
The NEP recognises the linkages among the human resources, natural systems
and development processes and the competition for use of the same resources by
different interests and the measures that must be in place to achieve the desired goals.
In pursuit of the goals, the EMA is empowered to implement laws, policies and
programmes and to administer regulatory functions over development activities to
ensure that land and associated environmental resources will be used wisely and yield
sustainable benefits for the population. Together these two pieces of legislation
constitute an effective statutory system for regulating development. The TCP Act
provides for the control of land use and location of activities and the EM Act for
management of the environmental impacts of projects in the course of development and
in operation. Other statutory measures are available under the TCP Act by means of
development plans to propose appropriate land use and prescribe policies and
strategies to influence future decisions on use and development of land and guidance
for locating projects. This should be complemented by similar measures by the EMA
Haven Allahar, Kenneth Snaggs- DRIVING FORCES OF DEVELOPMENT CHANGE: CASE OF A CARRIBEAN
ISLAND
1617 AMERICAN RESEARCH THOUGHTS- Volume 1 │ Issue 7 │2015
through strategic environmental assessments to provide guidance on environmental
requirements when development decisions are being considered. The objectives of wise
use and environmentally responsible development of land are more likely to be
achieved if these measures are applied at the inception of the development process, that
is, when overarching socio-economic needs and intentions are articulated and policies
and strategies are being adopted for realising them.
5.3 Step 3: Strategies and Programmes
As a hydrocarbon-based economy, TT has developed a relatively extensive and modern
industrial complex of oil, liquefied natural gas (LNG), and petrochemical plants but this
exposes the country to the vagaries of the global commodities markets for such
products. This situation has long imposed the imperative to diversify the structure of
the economy away from hydrocarbon dependence to a more sustainable range of
economic activities such as tourism, creative industries, cultural/entertainment exports,
food and beverage processing, educational services, and technical services built on the
considerable experience of operating major plants. Current national and regional plans
need to be reoriented towards these new areas of development while future planning
must focus on these areas if environmental sustainability is to be achieved. Strategies
must be formulated to meet part of the food needs of the country as well as meeting the
land requirements for housing of the low income segment of the population, in
particular addressing the matter of appropriate subsidies. Strategies and programmes
aimed at securing balanced spatial development through effective decentralization of
activities to centres outside the capital city are critical to the entire process.
5.4 Step 4: Development Programmes and Projects
Inescapably, action towards the monetization of oil and natural gas must proceed to
avoid severe economic shocks while diversification activities are initiated. A more
comprehensive approach to small-scale agricultural development is needed as a food
security initiative and the determination and planning of appropriate housing forms to
meet growing needs for residential accommodation. Greater emphasis is required at the
community level where the need for facilities, public services, and development projects
is strongest. The issue of public housing and the vexed question of identifying and
developing land for the landless members of society are emerging as a ‘tipping point’
matter.
Haven Allahar, Kenneth Snaggs- DRIVING FORCES OF DEVELOPMENT CHANGE: CASE OF A CARRIBEAN
ISLAND
1618 AMERICAN RESEARCH THOUGHTS- Volume 1 │ Issue 7 │2015
5.5 Step 5: Physical Development and LU-LC
The physical development activities which embrace oil and gas installations, industrial
parks, urban development, and productive infrastructure such as sea and air ports,
harbours, utilities, roads, highways, and drainage, form the core of the proposed areas
of development and are integral to any assessment of development. Land use is defined
as the human utilization of a piece of land for specific purposes. Land use inevitably
involves two factors, the manipulation of the biophysical attributes of land or the
development of land, and the human intent underlying the act of manipulation or
development. Land use is the physical manifestation of decisions taken by people to use
land in satisfying a wide range of needs and purposes as detailed in Table 1.
Category Land Use and Development Activities
Urban Development Residential, commercial, institutional, social, public utilities and
related infrastructure; tourist facilities, hotel, beach facilities
Rural Development Plantation; short crops; livestock; aquaculture; agro-forestry; agro-
industry; and related small settlements
Large-scale Developments:
Social/entertainment;
Conservation & preservation;
Heavy engineering
Recreational (fun/water parks); golf courses; natural environment;
buildings and sites; transmission lines; water dams/reservoirs; and
trunk mains
Industrial Development Light Industry (manufacturing of textiles, food etc.) and heavy
Industry (oil, gas and downstream); agro-industry
Coastal Development Beach facilities; fishing; marine industrial; reclamation
Mining Quarrying; oil and gas drilling; and groundwater extraction.
Transportation Roads and highways; ports and harbours; airports; water ferry
terminals
Waste Disposal Development or expansion of landfills and wastewater treatment
plants.
Table1: Categorization of Types of Development
Source: Authors Categorization of the TT Case
LU-LC changes are induced by driving forces, some of which are natural while others
are associated with human-directed activities with the latter being the most significant
in inducing changes in LU-LC. These major driving forces are derived from deliberate
decisions by agencies and individuals to use land for various purposes. The discussion
on driving forces recognises both authorised and unauthorised action. Some driving
forces are the indirect product of population growth and socio-economic factors others
Haven Allahar, Kenneth Snaggs- DRIVING FORCES OF DEVELOPMENT CHANGE: CASE OF A CARRIBEAN
ISLAND
1619 AMERICAN RESEARCH THOUGHTS- Volume 1 │ Issue 7 │2015
are responses to political or governance imperatives and earmarked budgetary
allocations, while others are inherent in development actions involving biological and
physical change in the features and characteristics of land. There is also some difficulty
in distinguishing between land cover and land use on maps, where activities that can be
defined as land use such as agriculture, plantation forest and tree crop cultivation will
appear as vegetative cover.
Events that may be termed natural driving forces, such as storms, excessive
runoff and fires, also result in land cover change and some are induced indirectly by
human action, such as slash-and-burn land clearing for cultivation of food crops and
wildlife hunting. As a small island developing state (SIDS) TT is vulnerable to the
phenomenon of climate change, the effects of which can change LU-LC especially in
coastal zones, mountains and forested areas due to sea level rise, storm surges and
excessive and unseasonable rainfall.
Land cover is defined as the physical coverage of land, usually expressed in
terms of vegetative cover or lack of it. In this study, what is significant is the natural
vegetation, usually recognised in broad categories such as forest, scrubland, wetland
and other natural features of the earth’s crust (Figure 3). Thus, land cover in any area
can be assessed in terms of the biophysical state of the earth’s surface and sub-surface
directly below. Land cover change is significant when natural vegetation in an area is
removed or depleted to the point where it cannot regenerate. This can occur naturally,
be caused by weather events or be human-induced as is the case when the land is
developed for another use. Because of the limitations of the map coverage and detail,
forests and wetlands will be the main component of land cover identified. The accuracy
of these land coverage extractions is approximately 70% which was derived from
overlays done with the available 2008 satellite imagery and the 1998 ortho-rectified
aerial photography.
Haven Allahar, Kenneth Snaggs- DRIVING FORCES OF DEVELOPMENT CHANGE: CASE OF A CARRIBEAN
ISLAND
1620 AMERICAN RESEARCH THOUGHTS- Volume 1 │ Issue 7 │2015
Figure 2: Trinidad Land Coverage 2010
Source: State of the Environment 2010, Report by GISCSD Limited, 2011.
5.6 Step 6: Environmental Impacts
In order to deal with environment impacts, the first requirement is to inventory the
recognized natural environmental assets. This paper highlights the following main
assets: forests and forests reserves; wildlife reserves; wetlands and mangroves; beaches
and bays; archaeological and heritage sites; land capability; watersheds and catchments;
rivers and streams; groundwater sources; and fishing resources. Based on these assets,
policies and actions must be initiated to address: soil contamination; water and air
quality; noise abatement; wetlands preservation; beach protection; preservation of
heritage sites; control of quarry sites; and management of fish, wildlife, and endangered
species resources. A specifically targeted initiative towards reducing the negative
environmental impacts of built development and transportation infrastructure is
urgent.
Haven Allahar, Kenneth Snaggs- DRIVING FORCES OF DEVELOPMENT CHANGE: CASE OF A CARRIBEAN
ISLAND
1621 AMERICAN RESEARCH THOUGHTS- Volume 1 │ Issue 7 │2015
Figure 3: Development Assessment Framework for Small Islands (Authors’ Compilation)
6. OVERVIEW OF DAF
An examination of the six-step development process indicates that intervention in the
process by the regulatory agencies (EMA and TCPD) is at Step 4 which reflects the point
at which a development project has been formulated and an application seeking
permission to implement is submitted as required by law. This point may be too late in
the process for the planners and environmental managers to exercise effective guidance
and influence on a project and achieve the objectives of wise use and sound
development of land. Also, the situation often arises because in the earlier Steps 1-3
most of the defining aspects of a project are determined and escape the purview of the
regulatory agencies.
At Step 1 the driving forces, which initiate and influence the nature and scope of
a development project, are in effect and operating. These include powerful influences
such as, population needs and demands, economic development initiatives and
governance and political desires, intentions and decisions, and lead directly to Step 2
and 3, the mandates and directives given to the individuals and entities which have the
responsibility to interpret them and formulate strategies and programs to give effect to
them. Regulators have difficulty with a project which reaches Step 4 and is already
firmly committed, but on assessment is seen to be unacceptable. There may be many
Haven Allahar, Kenneth Snaggs- DRIVING FORCES OF DEVELOPMENT CHANGE: CASE OF A CARRIBEAN
ISLAND
1622 AMERICAN RESEARCH THOUGHTS- Volume 1 │ Issue 7 │2015
reasons for this, such as inappropriate land use, location, or the potential to cause
serious adverse environmental impact. Often it is too late to make modifications to the
project to meet all of the requirements, resulting in compromise, additional cost or
outright refusal accompanied with serious implications which flow back to the ‘drivers’
responsible for the project.
7. CONCLUSION
The paper has created a modified framework for implementing a DPSIR in a mini state
such as TT which has the potential for application in future assessments of the
environment conducted by the regulatory agencies. A development framework detailed
as a process chart, is proposed to be implemented alongside the DPSIR to address the
limitations of that framework in relation to the lack of local knowledge input,
recognition of population diversity, insufficient emphasis on sustainable development,
relative disregard for gender issues, and problems associated with small scale.
REFERENCES
1. Ahmed, Zia, Maybug Alma, Syed Hafizur Rahman, Sayed Sabbir Ahmed,
Mohammed Jahir Hogue and Romana Afrose Meem. ‚An Integrated
Environmental Assessment of Kakaluki Haor Ecosystem using DPSIR
Framework: A Case Study on Moulovibazar District of Bangladesh‛. American
Research Thoughts, 1, no. 6 (2015): 1631-1650. www.researchthoughts.us
2. Carr, Edward R., Philip M. Wingard, Sara C. Yorty, Mary C. Thompson, Natalie
K. Jensen and Justin Roberson. ‚Applying DPSIR to Sustainable Development‛.
International Journal of Sustainable Development & World Ecology, 14 (2007):
543-555.
3. Central Bank of Trinidad and Tobago. Annual Economic Survey. Government of
Trinidad and Tobago, Port of Spain, Trinidad, 2013. www.central-bank.org.tt
4. Central Statistical Office (CSO). Population Census. Government of Trinidad and
Tobago, Port of Spain, Trinidad, 2012. www.cso.gov.tt
5. Godschalk, David R. ‚Land Use Planning Challenges‛. Journal of the American
Planning Association, 70, no. 1 (2004): 5-13.
Haven Allahar, Kenneth Snaggs- DRIVING FORCES OF DEVELOPMENT CHANGE: CASE OF A CARRIBEAN
ISLAND
1623 AMERICAN RESEARCH THOUGHTS- Volume 1 │ Issue 7 │2015
6. GISCAD Limited. State of the Environment: Land Cover and Land Use Change
2010. Report to the Environmental Management Agency, Government of the
Republic of Trinidad and Tobago, Port of Spain, Trinidad, 2011.
7. Hassan, Ahmed Abdelhalim M. Spatial Resilience of Megacities based on
Conceptual Model from Concept to Implementation. Case Study: Greater
CAIRO, Egypt. Proceedings, Real Corporation, Rome, Italy, May 2013.
http://www.corp.at
8. Hills, T, T.J.B. Carruthers, S. Chape, and P. Donohoe. ‚A Social and Ecological
Imperative for Ecosystem-based Adaptation to Climate Change in the Pacific
Islands‛. Sustainable Science, 8, (2013):455-467. doi:10.1007/s11625-013-0217-5
9. Kristensen, Peter. The DPSIR Framework. Presentation of Paper to Workshop on
a Comprehensive/Detailed Assessment of the Vulnerability of Water Resources
to Environmental Change in Africa using River Basin Approach. UNEP
Headquarters, Nairobi, Kenya, September 27-29, 2004.
10. Lane, Daniel, Colleen Mercer Clarke, Donald L. Forbes, and Patrick Watson.
‚The Gathering Storm: Managing Adaptation to Environmental Change in
Coastal Communities and Small Islands‛. Sustainable Science, 8, (2013): 469-489.
doi: 10: 1007/s11625-013-0213-9
11. Ministry of Finance and the Economy. Review of the Economy 2014. Government
of Trinidad and Tobago Port of Spain, 2014. http://finance.gov.tt
12. Salvati, Luca and Margherita Carlucci. ‚Urban Growth and land-Use Structure in
Two Mediterranean Regions: An Exploratory Spatial Data Analysis‛. SAGE
Open, October-December (2014):1-13. doi: 10.1177/2158244014561199
13. Turnbull, Jane. ‚Explaining Complexities of Environmental Management in
Developing Countries: lessons from the Fiji Islands‛. The Geographical Journal,
170 (2004): 64-77.