摘要
“基于USLE模型和多因素方差分析方法,以邛海流域为研究对象,研究不同海拔、坡度和土地利用类型下,土壤侵蚀强度的特征和规律.结果表明：不同海拔梯度下,随着海拔的升高,土壤侵蚀量呈先增后减再增的趋势.1 5 00-1700m 海拔段是土壤侵蚀防治的重点区域.坡度对土壤侵蚀量的影响无明显的规律,但对土壤侵蚀量的产生有显著影响.15-25°坡度带是土壤侵蚀的重点预防和治理区域.不同的土地利用类型下,土壤侵蚀存在明显的差异.流域需加强旱地、园地和林地的治理.
In this paper, USLE model and multi factor analysis of variance method are used to analyze the features and rules ofsoil erosion intensity based on different elevation, slope and land use type in Qionghai Basin. The results show that with the increaseof elevation, soil erosion presents the trend of increase first, then decrease and afterwards increase again. Elevation of 1500-1700mis the key area for soil erosion prevention and control. There is no obvious rules for the influence of slope on soil erosion but asignificant impact on soil erosion generation. Slope of 15-25° is the key area for soil erosion prevention and governance. There aresignificant differences of soil erosion under different land use types. Therefore, management of dry land, arbustum and forest in thebasin should be strengthened.
出处
《环境保护科学》
CAS
2016年第3期119-124,共6页
Environmental Protection Science
关键词
多因素方差分析
土壤侵蚀
特征和规律
Multi Factor Analysis of Variance
Soil Erosion
Feature and Rule
