生态与农村环境学报2016，Vol.32Issue(5)：788-793,6.DOI:10.11934/j.issn.1673-4831.2016.05.015
云南典型丘陵区茶园有机管理措施对土壤侵蚀的影响
Effects of Organic Management Measures for Tea Plantations on Control of Soil Erosion in a Typical Hilly Region in Yunnan Province
摘要
Abstract
A study was carried out in a typical hilly region in Yunnan Province in order to investigate effects of organic farming measures for management of tea plantations on soil erosion. A water erosion prediction project(WEPP) model spe⁃cific for mechanism of soil erosion on slopes was used to simulate effects of higher vegetation coverage and/or higher straw mulching rate on soil erosion on slopes. Results show that rainfall intensity is the major factor, rather than slope length, significantly affecting soil loss and sediment output in either conventional or organic tea plantation on slope. Straw mulching significantly increases soil nutrient contents in the surface soil layer, and at the same time reduces soil erosion rate remark⁃ably, and the soil conservation effect is more obvious, especially in the cases of heavy rain shower and rainstorm. Soil ero⁃sion rate drops significantly when straw mulching rate reaches 1�0 kg·m-2 . The simulation shows that soil erosion rate re⁃duces with increasing vegetation coverage. The simulation of combined effect of vegetation coverage and straw mulching in⁃dicates that the combination of different management measures can significantly reduce soil erosion and sediment yield, es⁃pecially in tea plantations with low vegetation coverage, where the effect of straw mulching is more obvious.关键词
土壤侵蚀/有机茶园/秸秆覆盖/植被覆盖率/WEPP模型Key words
soil erosion/organic tea garden/straw mulching/vegetation coverage/WEPP model分类
农业科技引用本文复制引用
刘世梁,董玉红,尹艺洁,成方妍,董世魁..云南典型丘陵区茶园有机管理措施对土壤侵蚀的影响[J].生态与农村环境学报,2016,32(5):788-793,6.基金项目
国家自然科学基金面上项目（41571173）；国家科技支撑计划 （）
