| 生草覆盖和植物篱措施对红壤坡地土壤侵蚀调控效应研究 |
| |
| 引用本文： | 陈明霞,查轩.生草覆盖和植物篱措施对红壤坡地土壤侵蚀调控效应研究[J].福建地理,2009(1):32-37. |
| |
| 作者姓名： | 陈明霞 查轩 |
| |
| 作者单位： | 福建师范大学地理研究所;莆田学院资源与生命科学系; |
| |
| 基金项目： | 国家重点基础研究发展计划973项目(2007CB407207);;国家自然科学基金资助项目(40571095);;福建省自然科学基金资助项目(D0410016、2008J0123) |
| |
| 摘 要： | 以安溪官桥为研究区，在已有研究工作的基础上采取野外调查与人工降雨野外模拟试验相结合的方法，研究了植被对山坡地土壤侵蚀的调控机理．研究表明，翻耕地在生草覆盖的条件下，产流量与径流系数均减少70％左右，平均入渗率提高3倍多．说明生草覆盖条件下大量的降雨以入渗的形式流入土壤中，且径流含沙量与产流产沙量均显著低于生草覆盖前，其中平均含沙量减少87．5％，产沙量减少97％．根据对野外试验小区的多年观察，说明植物篱具有缓解坡度、提高土壤抗冲性等明显的保水保土效益．因此，采取适当措施减少产流量以及提高降雨向土壤水分的转化率，均可有效减少坡地土壤流失量．
|
| 关 键 词： | 人工降雨 土壤侵蚀 生草覆盖 植物篱 安溪 |
Effects of Perennial Alfalfa and Hedgerow System on the Adjustment and Control of Soil Erosion in the Granite Sloping Fields |
| |
| CHEN Ming-xia,ZHA Xuan.Effects of Perennial Alfalfa and Hedgerow System on the Adjustment and Control of Soil Erosion in the Granite Sloping Fields[J].Fujian Geography,2009(1):32-37. |
| |
| Authors: | CHEN Ming-xia ZHA Xuan |
| |
| Institution: | 1.Institute of Geography;Fujian Normal University;350007;Fuzhou;China;2.Department of Resources & Life Sciences of Putian University;351100;Putian;Fujian;China |
| |
| Abstract: | Taking Guanqiao area in Anxi county as study area and based on previous research achievements,this article assessed systematically the mechanism of vegetation in adjusting and controlling soil erosion on the slope lands by integrating field investigation and experiments.The results showed that,under grass cover conditions,either runoff-yielding volume or runoff coefficient reduced by 70% while the average rate of infiltration increased by more than 3 times respectively on the tillage,which proved that a lar... |
| |
| Keywords: | rainfall simulation soil erosion perennial alfalfa hedgerow system Anxi county |
| 本文献已被 CNKI 维普 等数据库收录！ |
