低丘红壤坡耕地苎麻与花生水土保持效果对比研究  

A Comparative Study on Soil and Water Conservation of Ramie and Peanut Fields in Red Soil Sloping Land

作　　者：廖绵清[1] 李靖[1] 黄欠如[1,2] 叶川[1,2] 余喜初[1,2] 唐西京[3] 章新亮[1] 孙永明[1] 钟义军[1] 吴明庆[1] 

机构地区：[1]江西省红壤研究所,南昌331717 [2]江西省水土保持野外监测站,南昌331717 [3]江西省图书馆,南昌330077

出　　处：《土壤》2011年第4期657-661,共5页Soils

基　　金：中国科学院知识创新工程重大项目(KSGXI-YW-09);水利部水土保持植物开发中心示范项目(SWCC200901)资助

摘　　要：通过径流小区试验，进行了苎麻与花生水土保持效果的对比试验，重点分析降雨量、作物覆盖度、叶面积指数等农艺性状及冠层截留量与地表径流量的关系。试验从4月份作物种植后开始测定，7月底作物收获结束。结果表明，无论是地表拦蓄径流量，还是泥沙侵蚀量，苎麻处理都优于花生处理；与花生处理相比，苎麻处理的冠层截留量提高了22．9％-908.3％（p〈0．01），土壤入渗率增加了16．2％～157．7％；红壤坡耕地径流量与降雨量呈显著正相关，与覆盖度和叶面积指数呈显著对数或指数负相关。Soil and water conservation of ramie and peanut were studied in red soil sloping land. The relationships between the rainfall, leaf area index, vegetation coverage and surface runoffor canopy interception were given in this study. This experiment began in April and ended in July. The results showed that both for the surface runoff and soil loss, the ramie treatment was superior to the peanut treatment. Compared with the peanut treatment, the canopy interception of the ramie treatment was increased by 22.9% - 908.3% and soil infiltration rate was increased by 16.2% -I 57.7%. The runoff and rainfall had significantly positive correlation, while had significantly negative logarithm correlation with the coverage and negative exponential correlation with the leaf＇area index in red soil sloping land.

关 键 词：红壤坡耕地 苎麻 花生 水土保持 

分 类 号：S563.1[农业科学—作物学]