草地学报

草地学报 ›› 2016, Vol. 24 ›› Issue (6): 1374-1377.DOI: 10.11733/j.issn.1007-0435.2016.06.032

• 研究专报 • 上一篇    下一篇

刺槐人工林土壤团聚体稳定性与群落特征的相关分析

孙娇1,2, 何俊皓1, 张伟1, 杨改河3, 郝文芳1   

  1. 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
  • 收稿日期:2015-04-03 修回日期:2015-11-14 出版日期:2016-12-15 发布日期:2017-03-18
  • 通讯作者: 郝文芳
  • 作者简介:孙娇(1989-),女,甘肃庆阳人,硕士研究生,主要从事土壤生态学研究,E-mail:Jannysun@yeah.net
  • 基金资助:

    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

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

SUN Jiao1,2, HE Jun-hao1, ZHANG Wei1, YANG Gai-he3, HAO Wen-fang1   

  1. 1. College of Life Science, Northwest A & F University, Yangling, Shaanxi Province 712100, China;
    2. Institute of Agricultural Resources and Environment, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, Ningxia 750002, China;
    3. College of Agriculture, Northwest A & F University, Yangling, Shaanxi Province 712100, China
  • Received:2015-04-03 Revised:2015-11-14 Online:2016-12-15 Published:2017-03-18

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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。

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

Abstract:

The correlation analysis of soil aggregate stability and plant community characteristics were studied under different-aged Robinia pseudoacacia plantations (20, 25, 40 and 50 years 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.

Key words: Robinia pseudoacacia plantation, Plant community characteristics, Soil aggregate stability, Correlation analysis

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