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CARE blog

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Most of the document presented each water technology, from siting to construction, and illustrated how to make it more efficient and harmonious with the realities and patterns of drought. For instance, if a community’s primary water source is through [[riverbed infiltration galleries]], and the drought makes the river dry up, then reliance on the shorter (and often more intense) rainfall events must be maximized. Two smart solutions to address this are: increase the porosity of your infiltration system (to reduce rainfall runoff) and create a greater catchment area or dam system to accommodate more erratic, “all at once” rainfall events.

[[File:contour_Trench_hill.JPG|thumb|left|400px|Contour trenches used to slow water moving down a hill so that absorption into the aquifer and increased soil moisture for crops is possible. Photo: Unknown.]]

Contrary to old practices of physically capturing and storing every bit of rain possible, sometimes allowing rain to loosely recharge an aquifer has many more advantages. [http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&ved=0CFgQFjAB&url=http%3A%2F%2Fnora.nerc.ac.uk%2F7453%2F1%2FCR06107N.pdf&ei=L3XrT9q0Ke-r2AWuqczDAQ&usg=AFQjCNHkHVSAHNdcNB4zLNRGQWvD3zi4_A&sig2=CY7ebiDRT1b9pldm8SPOiQ Managed Aquifer Recharge (MAR)] is a technique of managing drought that is gaining in popularity, primarily because keeping the groundwater recharged supports water (and food) security better. MAR tends to address more factors affected by drought, such as keeping soil moisture (crucial to crop success) and preventing evaporation (since aquifers have natural “lids” of earth/rock/soil on them). Plus, aquifers cover a lot of geographical area, which reduces the time people need to travel to access water, if for example, they can drill or dig a well where they are at, and have local access.

Winona

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