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While water use affects environmental degradation and economic growth, it is also sparking innovation regarding new irrigation methods. In 2006, the USDA predicted that if the agricultural sector improved water efficiency by just 10%, farms could save upwards of $200 million per year. [21] Many of the practices that cut water use are cost ...
The report A Comprehensive Assessment of Water Management in Agriculture [1] was published in 2007 by International Water Management Institute and Earthscan in an attempt to answer the question: how can water in agriculture be developed and managed to help end poverty and hunger, ensure environmentally sustainable practices, and find the right balance between food and environmental security?
Only the amount of water consumed by crops plus that which evaporates from the soil (known as the Consumptive water use value) can be transferred outside of agricultural production. State water codes and legal case precedents govern water ownership and transfers. Environmental interests can oppose transfers that impact farmland or ecosystems. [9]
Reducing the amount of water used to irrigate livestock feed crops may be critical to revitalizing the dried-out Great Salt Lake, a new study has found. About 62 percent of the river water heading ...
The goal of sustainable agricultural practices is to decrease environmental degradation due to farming while increasing crop–and thus food–output. There are many varying strategies attempting to use sustainable farming practices in order to increase rural economic development within small-scale farming communities.
Water use is considered inefficient if the same purpose of its use can be accomplished with less water. Technical efficiency derives from engineering practice where it is typically used to describe the ratio of output to input and is useful in comparing various products and processes. [ 56 ]
The water, energy and food security nexus according to the Food And Agriculture Organisation of the United Nations (FAO), means that water security, energy security and food security are very much linked to one another, meaning that the actions in any one particular area often can have effects in one or both of the other areas.
A reduction of water use on one field may mean that the farmer is able to irrigate a larger area of land, increasing total agricultural production. Low efficiency usually means that excess water is lost through seepage or runoff, both of which can result in loss of crop nutrients or pesticides with potential adverse impacts on the surrounding ...