Innovations in Dryland Agriculture
69 Aquifers occur when underground layers of water seep into permeable rock or other materials such as sand, gravel, silt or cla ...
70 future use. Not only does this recharge depleting groundwater sources, it raises the declining water table and helps to augme ...
71 quality is especially important when a structure provides water for domestic use. Water quality is less relevant when used on ...
72 time often constitutes a more common cause of crop failure than absolute water scarcity due to low cumulative annual rainfall ...
73 5.5 Hydrology and Water Resources Hydrology monitors the available water sources involved in storage, production and runoff o ...
74 Land Use Management—how land, both communal and private, is managed and used can determine the effectiveness of the WH strat ...
75 catchment area ratios, runoff efficiency, agronomic features and plant species (Renner and Frasier 1995b; Oweis et al. 2001 ; ...
76 With very fine-textured soils, water may not infiltrate and is lost to evaporation. High clay content soils with low infiltra ...
77 There is no universally-standard catchment area to infiltration basin ratio. Generally, the ratio varies between 1:1 and 20:1 ...
78 Because water harvesting systems increase the amount of water availability to crops, certain types of plants can survive drou ...
79 recharge which may come from WH. Some other less noticeable advantages of rainwater collection in communities may be sustaina ...
80 of women, incentives versus need and appropriate technology are important attri- butes in the selection of a WH system (Renne ...
81 the local community believes that the project is best for their needs and demand, the project will fail. In general, reliance ...
82 7 Supplemental Irrigation and Water Harvesting In dry areas, it is water, not land, which is the most limiting resource for i ...
83 8 Benefits of Water Harvesting Rainwater harvesting (RWH) is as old as human settlements. It is practiced in many different f ...
84 while infiltration and soil moisture increased. RWH techniques such as Jessour in Tunisia and the Middle East decreased the a ...
85 other treatments on plant height. Plastic cover had a significantly different effect on stem diameter than the other treatmen ...
86 regions where the amount of evaporation largely exceeds rainfall. Therefore, an in situ WH technique where rainfall is collec ...
87 2007 ), did not differentiate between areas under rainwater harvested water supply and areas under other types of water suppl ...
88 Water storage spurs economic growth and helps alleviate poverty by making water available when and where it is needed. In nor ...
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