摘要
对1994-1996年和2001-2002年坡地不同种植制度与地表径流的相互关系进行了探讨。试验资料表明,荒坡地开垦为农田后地表径流量增加,但不同的种植制度对地表径流量的影响也是不同的。1994-1996年种植制度的地表径流量为:旱稻-小麦>玉米-荞麦-大麦>花生-荞麦>红薯-小麦,而2001-2002年的顺序为:花生单作>玉米-肥田萝卜>花生-油菜>果树-花生。单一种植制度的径流量大于轮作制度,轮作制度又大于果农间作种植制度。地表覆盖度与径流量呈显著的负相关关系,且不同作物的田间管理措施及其自身性质是影响地表径流量的重要因子。
The connection between different plant systems and runoff from sloping fields was studied and discussed for the periods 1994-1996 and 2001-2002. These data indicated that farmland runoff increased markedly after barren sloping field was exploited. There were differences in effect on runoff of different plant systems. From 1994 to 1996, relative runoff under different plant systems was: paddy-wheat>maize -buckwheat - barley>peanut -buckwheat > red potato -wheat. During 2001-2002, the relationship was : peanut > maize -radish>peanut - cole >fruit tree - peanut (intercrop). Runoff under a solop plant was greater than that under & rotatation system, and that under a rotatation system was greater than that under a fruit growing intercrop system. Also, higher plant coverage resulted in the less runoff. Managing measures on farm and the characteristics of the plant systems used were key factors affecting runoff.
出处
《水土保持通报》
CSCD
北大核心
2004年第1期29-31,42,共4页
Bulletin of Soil and Water Conservation
基金
中国科学院创新课题(KZCX2-407
ISSASIP0201和KZCX2-413)
