[1]李聪会,朱首军,陈云明,等.黄土丘陵区生物结皮对土壤抗蚀性的影响[J].水土保持研究,2013,20(03):6-10.
　LI Cong-hui,ZHU Shou-jun,CHEN Yun-ming,et al.Effects of Biological Crusts on Soil Anti-erodibility in Loess Hilly Areas[J].Research of Soil and Water Conservation,2013,20(03):6-10.
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黄土丘陵区生物结皮对土壤抗蚀性的影响

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 20 期数: 2013年03期 页码: 6-10 栏目: 出版日期: 2013-06-28
Title:
Effects of Biological Crusts on Soil Anti-erodibility in Loess Hilly Areas
作者:
李聪会1, 朱首军1, 陈云明2, 于萌3, 马笑1
1. 西北农林科技大学 资源环境学院, 陕西 杨凌 712100;
2. 西北农林科技大学 水土保持研究所, 陕西 杨凌 712100;
3. 新疆绿疆源生态工程有限责任公司, 乌鲁木齐 830000
Author(s):
LI Cong-hui1, ZHU Shou-jun1, CHEN Yun-ming2, YU Meng3, MA Xiao1
1. College of Natural Resources and Environment, Northwest A & F University, Yangling, Shaanxi 712100, China;
2. Institute of Soil and Water Conservation, Northwest A & F University, Yangling, Shaanxi 712100, China;
3. Xinjiang Lvjiangyuan Ecological Engineering Co., Ltd., Urumqi 830000, China
关键词:
生物结皮; 土壤抗蚀性; 土壤崩解; 抗剪强度
Keywords:
biological crust; soil anti-erodibility; soil disintegration; anti-shear strength
分类号:
S154;S157
摘要:
以黄土丘陵区不同发育年限的生物结皮为研究对象，通过对保留生物结皮、去除生物结皮两种处理下土壤的崩解性、抗剪强度的比较，分析生物结皮对土壤抗蚀性的影响。结果表明：（1）生物结皮可以增强土壤抗崩解性能，随着发育年限的增加，崩解量减少，减少量从21.85%至43.46%递增。（2）生物结皮可以提高土壤抗剪强度，提高率为17.91%~23.45%，并与发育年限成正相关关系。（3）土壤崩解量与抗剪强度呈线性负相关，生物结皮对土粒间相互作用力的增强可以降低水分对土粒的分散作用，崩解量随抗剪强度的变化率较小。
Abstract:
In order to study the effects of biological crusts forming in different development periods in loess hilly areas on soil anti-erodibility, the differences of soil disintegration and soil anti-shear strength under two different treatments, retention of biological crust and removal of biological crust were analyzed. The results were as followings:(1) the formation of biological crusts can reduce the soil disintegration quantity, with the development of biological crusts, the influence degree improved from 21.85% to 43.46%; (2) the formation of biological crusts can improve the anti-shear strength of soil at the rate of 17.91%~23.45%, and the development of biological crusts has the positive correlation with soil anti-shear strength; (3) soil disintegration quality had the negative linear correlation with soil anti-shear strength. As the biological crust can enhance the soil particle interaction, the effect of moisture on soil particle dispersion was reduced, which made the rate of change of soil disintegration to anti-shear strength reduced.

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备注/Memo

收稿日期:2012-11-06;改回日期:2012-12-26。
基金项目:“十二五”国家科技支撑计划“梁峁丘陵沟壑区农田耕作及林草生物措施防蚀关键技术集成与示范”（2011BAD31B05-02）
作者简介:李聪会(1987-),女,河北衡水人,硕士研究生,主要研究方向:水土保持工程。E-mail:xiaohuier2007@126.com
通讯作者:朱首军(1965-),男,江苏沛县人,副教授,博士,主要研究方向:林业生态工程、水土保持工程。E-mail:zhushoujun@nwsuaf.edu.cn

更新日期/Last Update: 1900-01-01