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5th International Conference on Rain Water Cistern Systems
"Rainwater Catchment for Future Generations"
Keelung, Taiwan, R.O.C. - August 1991

Section 9: Alternative Uses of Cistern Water

Page 495

Rainwater Catchment Using Farm Pond in Southwestern Taiwan

Chien. P.W. Yuan, Y.H. & Wan; Y.
Taiwan provincial soil and water conservation Bureau

Abstract

Farm ponds are primarily designed and constructed for storing rain water and providing water supply for the township of Tos-cheng, Yu-Ching, and Nan-Hua in Taiwan county. Te-Liao, and Yen-Tsoinkaohsiung county where water shortage is a serious problem. In the past 20 years, from 1970 to 1990, a -total f 58 farm ponds were constructed with a total volume of 2,745,200 Using farm ponds to collect rainwater is an unique feature in Southwestern Taiwan.

Rivers and streams in Taiwan are short and steep. Water flows swiftly to the ocean. Although the rainfall is abundant, water supply in Taiwan is limited. The average annual rainfall on the island is about 2,510 mm with large spatial variability. Rainwater is a valuable water resource in mudstone are areas with unavailable groundwater resource and insufficient surface water source Since 1965, the Taiwan Procincial Soil and Water Conservation Bureau initiated a policy to construct a lot of farm ponds for storing rain water and supplying water to satisfy people's domestic needs, agriculture and livestock raising. The cost for a pond construction is higher than tap water. However, it is necessary to improve people's living environment, and to upgrade a production. Farm ponds can also control gully erosion and landslide in mudstone areas.

A lot of effort have been spent in conducting reconnaissance survey, planning and design of earth embankment and farm ponds using impermeable mudstone materials So for, no dam failure has been reported. When farm pond is filled with sediments, the sludge has to be dredged out. The sludge has been used o cultivate crops such as dates and guava to increase farmer’s income. This technology has been transferred to local governments to assist in planning and design of more farm ponds and rainwater catchment systems.

PDF of full document (14pp, 510kb)


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