果园水土保持在生态环境建设中的作用初报  

Preliminary Study of Ecological Environment in Orchard Soil and Water Conservation

作　　者：刘士余[1] 董闻达[2] 李德荣[2] 

机构地区：[1]江西农业大学国土资源与环境学院,南昌330045 [2]江西农业大学农学院,南昌330045

出　　处：《水土保持研究》2000年第3期198-200,共3页Research of Soil and Water Conservation

基　　金：国家计委"八五"重点科技攻关项目! ( 85 -60 6-2 5 -0 1)资助

摘　　要：在山边沟的间距内 ,采用水平梯田梯壁植草 (百喜草 :Paspalum notatum)等 8种不同的处理方式观测红壤坡地果园水土流失状况 ,于第一年 (1 998年 )试验初步结果表明 ,不同处理已有显著差异。与全园裸露 (对照 )比较 ,水平梯田梯壁植草水土保持效果最佳 ,其平均径流系数减少 85 .1 9% ,土壤侵蚀量减少 98.85 % ,其他各处理也有不同程度防治水土流失的效果。因此建议在坡地果园中应进行以百喜草为主的草生栽培 。Between two hillside ditches, soil and water losses in slopeland orchard of red soil were assessed by eight different treatment methods, such as planting Bahia grass ( Paspalum notatum ) on level bench terrace wall. The experimental results of the first year (1998) had shown significant differences among methods used. Compared with bare soil (ck), planting Bahia grass on level bench terrace wall was the most effective method to conserve soil and water, it reduced average runoff coefficient by 85.19% and amount of soil erosion by 98.85%.Others also had various effects. Therefore, it is suggested that vegetative cultivation mainly by Bahia grass in slopeland orchard should be used to improve its vegetation coverage.

关 键 词：水土保持 百喜草 草生栽培 红壤坡地果园 

分 类 号：S157[农业科学—土壤学] S66[农业科学—农业基础科学]