中国水土保持科学2012，Vol.10Issue(5)：36-42,7.
不同行数植物篱对红枫湖坡耕地养分的拦截效应
Nutrient blocking effects of plant hedge with various rows on slope farmland nearby Hongfeng Lake
摘要
Abstract
In order to choose a appropriate width of plant hedge for soil and water conservation on slope farmland nearby Hongfeng Lake, different widths of plant hedge of mixed Vetiveria zizanioides and Tephrosia purpurea ( basic hedge were composed of 1 line Vetiveria zizanioides and 1 line Tephrosia purpurea, and 2 row hedge means 1 basic hedge. ) were designed, each plant hedge treatment with 3 bands, including 0 (control) ,2,4,6 rows/band, and 2-4-6 rows from top to bottom. Surface runoff, sediment and nutrients were compared. All indexes of treatments were lower than that of the control. According to the variance analysis and F-test, significant differences among different treatments were found. 1 ) Further multiple comparison results showed that nutrient elements were significantly blocked by the plant hedge treatments except for 2-rows/band treatment. 2) There was no significant difference among treatments with 2-rows/band, 4-rows/band and 2-4-6 rows from top to bottom, but the difference between 6-rows/band and 2-rows/band treatments was significant. 3 ) There was only significant difference in blocking effect of soil P and K between the treatment of 6-rows/band and other two treatments of 4-rows/band and 2-4-6 rows from top to bottom. From results of both experiment and practical application, 4-rows/band probably is the best choice for local place, followed by 2A-6 rows from top to bottom.关键词
不同行数植物篱/坡耕地/水土流失防治/红枫湖Key words
different bandwidth plant hedge/ slope farmland/ soil and water conservation/ Hongfeng Lake引用本文复制引用
蔡先立,周运超,刘晓云,马礼平,田箫..不同行数植物篱对红枫湖坡耕地养分的拦截效应[J].中国水土保持科学,2012,10(5):36-42,7.基金项目
贵州省优秀科技教育人才省长基金项目"不同碳酸盐岩石对土壤侵蚀影响的研究"(黔省专字2008-7号) （黔省专字2008-7号）
贵州省国际科技合作项目"喀斯特土壤侵蚀的历史记录研究"(黔科合外G字-2010-7009) （黔科合外G字-2010-7009）
贵州省留学人员科技活动项目"喀斯特土壤侵蚀的历史过程研究"(黔人项目资助合同2009-3) （黔人项目资助合同2009-3）
贵阳"两湖一库专项"项目[2009]"旱坡地植物蓠控制土壤侵蚀技术及示范"(筑科农合同字第3-042号) （筑科农合同字第3-042号）
