论文部分内容阅读
石门县寺垭水库是一座以灌溉为主,综合利用的中型水利工程。建于1959年,集雨面积11.24km~2,正常库容1400万m~3,正常水面800亩。库貌属浅丘开阔形水库,平均水深6—8m。死库容水深在3.0m以上,库周植被较少,水质接近中营养型。从1987年开始,积极引进先进的养殖技术,大胆推广水库化肥养鱼,取得了良好的经济、社会效益:1987—1991年5年间,水库共投施化肥7.5万kg,有机肥(青杂和枯饼类)34万kg,共产鲜鱼12.725万kg,总收入33.02万元,创利润15.63万元,渔业产量、产值、利润的年递增率分别为12.7％、13％、14.6％。亩平鱼产量从8.0kg上升到31.8kg。亩平产值比1987年前增长12.2倍,其主要经验和做法是:
Shimen County Temple Reservoir is a water-based, comprehensive utilization of medium-sized water conservancy project. Built in 1959, the catchment area is 11.24km ~ 2, the normal storage capacity is 14 million m ~ 3, and the normal water surface is 800 mu. Reservoir appearance is a shallow hill open-shaped reservoir, the average depth of 6-8m. Dead storage water depth of 3.0m or more, less weeks vegetation, water quality close to nutrition. Since 1987, we have actively introduced advanced farming techniques and boldly popularized fish oil from reservoirs and fertilizers, and achieved good economic and social benefits. During the five years from 1987 to 1991, 75,000 kg of chemical fertilizers were applied to the reservoir, and organic fertilizers 340,000 kg of fresh fish and 127,225 kg of fresh fish. The total revenue was 330,200 yuan and the profit was 156,300 yuan. The annual increment of fishery output, output value and profit was 12.7%, 13% and 14.6% respectively. Mu flat fish production rose from 8.0kg to 31.8kg. The output value of mu has increased by 12.2 times than that before 1987, and its main experience and practice are as follows: