摘要
本文研究了稻麦两熟养鱼高产的调控原理,提出了稻麦连作,畦麦沟鱼、稻鱼共生的稻田全年养鱼技术。①利用深沟窄畦扩容和稳容,改造生境容量;②采用畦麦沟鱼、稻鱼共生结构调节群落的种群密度和生态位宽度,延长养鱼时间;③按照生物种群的生态型对水层敏感性实施田间水位和流水增氧调控,提高养鱼产量;④提高稻麦两熟养鱼的生产率,合理投入,以生物质能为主源输入稳定系统结构。
This paper deals with regulating priciples of high-yield fisheulture in the rice-wheat rotation in paddy field and its relative technique estabilished as following:①Ecological capacity expanded and mained by use of“Narrow furrow and deep ditch”.②Fish farm time prolonged and population density of bioeommunity and niche breadth regulated by the structure of wheat on furrow and fish within-ditch,and rice-fish mul- tual.③Fish output up-gotten by water level controlling and increasing via running water.④Multual system- aries stabilized by inputting man power,matter,money and energy ere,especially bioenergy.
基金
国家自然科学基金
关键词
稻田养鱼
稻麦两熟
fishculture in paddy field
rice
wheat
technique
