WU Yu-he, ZHANG Hong-jiang, CHENG Jin-hua, et al. Soil Particles Characteristics and the Relationship Between Soil Particles and Soil Erosion in Different Forestlands in Simian Mountains,Chongqing[J]. 2011, 25(5).
WU Yu-he, ZHANG Hong-jiang, CHENG Jin-hua, et al. Soil Particles Characteristics and the Relationship Between Soil Particles and Soil Erosion in Different Forestlands in Simian Mountains,Chongqing[J]. 2011, 25(5).DOI:
重庆四面山不同林地土壤颗粒特征及其与土壤侵蚀的关系
摘要
通过对重庆四面山的槲栎林、川柯林、柳杉林和毛竹林4种林地土壤颗粒状况的分析
探讨不同林地土壤颗粒特征及其与土壤侵蚀之间的关系。结果表明:除柳杉林以外
其他林地土壤均属于级配良好土壤
毛竹林表层土壤颗粒的分散度较低、偏度较大
土壤颗粒分布不均衡
土壤流失程度较高。不同林地土壤的微团聚体分形维数表现为川柯林40-60cm层最小
柳杉林0-20cm层最大
微团聚体分形维数与<0.001mm粒级微团聚体含量成正比
与0.25~0.05mm粒级微团聚体含量成反比。川柯林土壤团聚状况最高(19.38%)
分散率最低(32.13%);柳杉林土壤团聚状况最低(10.88%)
分散率最高(74.41%)。
Abstract
Through analysis of soil particles situation in 4 different forestlands of Quercus aliena
Lithocarpus fangii
Cryptomeria fortunei and Phyllostachys heterocycla cv.pubescens in Simian mountains in Chongqing
the relationship between different forestland soil particles characteristics and soil erosion was discussed.The results showed that most of the forestlands soil were good gradation soil except Cryptomeria fortunei.Phyllostachys heterocycla cv.pubescens forestland.Surface soil particles dispersion was lowe...