论文部分内容阅读
为了探索汉中地区小(二)型灌溉水库鱼类增产的可行性和技术特点,我们于1977～1981年连续五年在南郑县白兔岭水库进行了鱼类增产试验。试验结果五年平均亩产122斤,是试验前多年平均亩产12斤的10倍,其中1981年亩产195斤,总产1.1万多斤,接近于试验前17年的总和。本文报告试验情况,同时对小(二)型灌溉水库渔业增产措施提一些粗浅看法。
In order to explore the feasibility and technical characteristics of fish production in small (two) type irrigation reservoirs in Hanzhong area, we conducted a trial of increasing fish production in the White Rabbit Reservoir in Nanzheng County for five consecutive years from 1977 to 1981. The test results average 122 mu per mu in five years, which is 10 times of the average yield of 12 kilos for many years before the test. Among them, 195 kg per mu in 1981 and a total output of 11,000 kilos were produced, close to the sum of the 17 years prior to the test. This article reports the test situation and at the same time gives some superficial views on the stimulation measures for the small (two) type irrigation reservoirs.