刺槐人工林土壤团聚体稳定性与群落特征的相关分析  

Correlation Analysis between Soil Aggregate Stability and Plant Community Characteristics of Robinia pseudoacacia Plantations

作　　者：孙娇[1,2] 何俊皓[1] 张伟[1] 杨改河[3] 郝文芳[1] SUN Jiao HE Jun-hao ZHANG Wei YANG Gai-he HAO Wen-fang(College of Life Science, Northwest A＆F University, Yangling, Shaanxi Province 712100, China Institute of Agricult ura Resources and Environment, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, Ningxia 750002, China College of Agriculture, Northwest A＆F University, Yangling, Shaanxi Province 712100, China)

机构地区：[1]西北农林科技大学生命科学学院,陕西杨凌712100 [2]宁夏农林科学院农业资源与环境研究所,宁夏银川750002 [3]西北农林科技大学农学院,陕西杨凌712100

出　　处：《草地学报》2016年第6期1374-1377,共4页Acta Agrestia Sinica

基　　金：国家林业部公益性行业科研专项(201304312);国家自然基金(41301601;51269025)资助

摘　　要：本研究对黄土丘陵区20,25,40和50年人工刺槐林土壤团聚体稳定性与植物群落特征相关性进行了分析,结果表明,刺槐群落的总物种数和细根密度对土壤团聚体水稳定性有显著影响(R2≥0.96),物种多样性和禾本科物种数对土壤团聚体机械稳定性作用明显(R2≥0.97),刺槐群落特征影响土壤团聚体稳定性。The correlation analysis of soil aggregate stability and plant community characteristics were studied under different-aged Robinia pseudoacacia plantations（20,25,40 and 50years old）in Loess Hilly Region of China.The results showed that：the Shimpson index and Gramineae species had significant effect on the soil mechanical-stable aggregates;species number and fine root density significantly affected the soil water-stable aggregates.In summary,Robinia pseudoacacia plant community characteristics affected the stability of soil aggregates.

关 键 词：人工刺槐林 植物群落特征 土壤团聚体稳定性 相关性分析 

分 类 号：S154.4[农业科学—土壤学]