PRESENTATION TOPIC:WATER PRODUCTIVITY

Presented By: Aown AbbasRoll No.46

Class B.Sc(HONS.)Agriculture 2013-17Presented To: Dr.Ahmad Sher

College of Agriculture BZU Bahadur Sub-Campus LAYYAH

Introduction Producing enough food and generatingadequate income in the developing world tobetter feed the poor and reduce the numberof those suffering will be a great challenge.

This challenge is likely to intensify, with aglobal population that is projected toincrease to 7.8 billion in 2025, putting evengreater pressure on world food security,especially in developing countries, wheremore than 80% of the population increase isexpected to occur.

Irrigated agriculture hasbeen an important contributor to the expansionof national and world food suppliessince the 1960s and is expected to play amajor role in feeding the growing worldpopulation.

However, irrigation accountsfor about 72% of global and 90%of developing-country water withdrawals.

With growing irrigation-water demand and increasing competition across water-using sectors, the world nowfaces a challenge to produce morefood with less water.

This goal will be realistic only if appropriate strategies are foundfor water savings and for more Efficient water uses in agriculture.

Water Productivity is defined asThe ratio of net benefits from Crop, forest, fishery, livestock , and mixed agricultural system to the amount of water required to produce thosebenefits.

Water Productivity ?

There are important reasons to improve agricultural water productivity:

To meet the rising demand for food from a growing, and increasingly urbanized population, in light of water scarcity.

To respond to pressures to reallocate water from agriculture to cities and to ensure that water is available for environmental uses.

To contribute to poverty reduction and economic growth. For the rural poor more productive use of water can mean better nutrition for families.

Why is it important?

Water productivity analysis can be applied to crops, livestock, tree plantations, fisheries, and mixed systems at selected scales—crop or animal, field or farm, irrigation system, and basin or landscape, with interacting ecosystems

A framework for water productivity

1.Increasing the water productivity of livestock Globally, livestock production accounts for some 20% of agricultural evapotranspiration, and this proportion could grow with the increasing consumption of animal products.

2.Increasing water productivity in fisheries and aquaculture

As with livestock, there is considerable scope forbetter integrating fisheries and aquaculturewith water management systems to improve water productivity and reduce poverty

Reducing or limiting water withdrawals from riversand groundwater through water-saving practices and demand management remains an important strategy to control water resources, limit damageto aquatic ecosystems, and in some cases releasewater from agriculture to other uses.

3.Improving the water productivity of water deliveries

Designing and managing agricultural water for multiple uses—drinking water, industries, livestock, fisheries—can raise the social and economic productivity of water in water management systems

Applying integrated approaches to increasing the value per unitof water

Water productivity improvement can providetwo pathways to poverty alleviation. First,targeted water interventions can enable poorand marginalized people to gain access to waterand use it more effectively. Second, across-the-board increases in water productivity may benefit poor people through multiplier effects on food security, employment, and income.

Water productivity pathways for reducing poverty