水土保持研究2011，Vol.18Issue(4)：145-149,5.
北京山区砾石覆盖度和砾石含量的关系研究
Study on the Relationship between Rock Fragments Cover and Weight Percentage in Beijing Mountain
摘要
Abstract
Rock fragment,a sign of soil degradation and ecosystems degradation,is the results of a variety of hydrologic and erosion processes.Conversely,the rock fragment also has effect on erosion processes.The relationship between rock fragment cover and weight percentage was studied according to the data of rock fragment and rock fragment weight percentage at different depths（0-2,2-5,5-10,10-15,15-20 cm）.The results show that the linear correlation coefficient between rock fragment cover and weight percentage increased with the decrease of soil depth.The relationship between rock fragment cover and weight percentage with large-size（6～20 mm,20～60 mm） was more significant than those with small-size（2～6 mm）.When the particle size is greater than 2 mm,the rock fragment cover significantly positively correlated with weight percentage.关键词
砾石覆盖度/砾石重量百分含量/土壤侵蚀Key words
rock fragments cover/rock fragments weight percentage/soil erosion分类
农业科技引用本文复制引用
高杨,符素华,罗来军,王楠,朱旭..北京山区砾石覆盖度和砾石含量的关系研究[J].水土保持研究,2011,18(4):145-149,5.基金项目
国家重点基础研究发展规划项目“中国主要水蚀区土壤侵蚀过程与调控研究（2007CB407204）” （）
国家自然基金 （）
北京市自然基金 （）
