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50年代末到70年代初,内乡县修建了大量水利工程,仅中小型水库就达49座,控制流域面积330.46km~2,总库容9401万m~3,兴利库容5285万立方米,设计灌溉面积1.28万hm~2,实灌面积约3.7千hm~2。这些工程运行几十年以来,发挥了灌溉、防洪、发电、养鱼等综合效益,有效地抗御了水旱灾害,但由于水库工程老化,年久失修,致使病库、险库增多,严重影响水库效益发挥。
In the late 1950s and early 1970s, Neixiang County built a large number of water conservancy projects, with 49 small and medium sized reservoirs only. The control basin covers an area of 330.46km 2 with a total storage capacity of 94.01 million m 3 and a capacity of 52.85 million cubic meters. Irrigation area design 12,800 hm ~ 2, real irrigation area of about 3.7 thousand hm ~ 2. These projects have played an integral role in irrigation, flood control, power generation and fish farming since the operation of these projects for many years and have effectively resisted the floods and droughts. However, due to the aging of reservoirs and the disrepair of old reservoirs, the number of sick and dangerous reservoirs has increased, seriously affecting Reservoir efficiency play.