Degradation and Evaluaton Indexes of Eroded Red Soil Fertility

LIU Yun-long; HU Hong-tao; CHEN Yong-qiang

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Degradation and Evaluaton Indexes of Eroded Red Soil Fertility

- Degradation and Evaluaton Indexes of Eroded Red Soil Fertility
- Bulletin of Soiland Water Conservation Vol. 26, Issue 5, Pages: 63-66(2007)
- 作者机构：
  
  1. 上海师范大学城市生态与环境研究中心,上海,200234
  2. 浙江大资环学院资源科学系,浙江,杭州,310029
  3. 上海应用技术学院,上海,200235
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2007
- 稿件说明：
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LIU Yun-long, HU Hong-tao, CHEN Yong-qiang. Degradation and Evaluaton Indexes of Eroded Red Soil Fertility[J]. Bulletin of Soiland Water Conservation, 2007, 26(5): 63-66.
DOI：

LIU Yun-long, HU Hong-tao, CHEN Yong-qiang. Degradation and Evaluaton Indexes of Eroded Red Soil Fertility[J]. Bulletin of Soiland Water Conservation, 2007, 26(5): 63-66. DOI：

摘要

以对侵蚀红壤肥力退化过程分析为基础

通过因子分析和相关分析对评价红壤肥力退化的指标体系进行了分析研究。结果表明

侵蚀退化红壤复垦后土壤肥力得到不同程度的恢复

时间和生物因素是影响土壤肥力恢复的主要因素。复垦时间长

发展林业均有助于土壤物理、化学和微生物性质的恢复。因子分析能有效地减少土壤性质指标间的重复信息

起到筛选和精简指标的作用。精简的6项指标(有机质含量、水稳性团聚体、过氧化氢酶、土壤物理性黏粒含量、土壤阳离子交换量、土壤微生物量碳)能概括所测定的全部16项指标包含信息的90%以上

能以较少的指标来反映土壤肥力的整体状况。

Abstract

Based on the analysis of eroded red soil deterioration processes

research on evaluation index sys-tem of red soil deterioration is carried out. Influenced mainly by time and biological factors

soil fertility has been restored gradually with the reclamation of eroded soil. The process of soil restoration can be promoted with much longer time and forest plantation. Correlation and factorial analyses are used to reduce the iterated information and simplify soil indexes. Six indexes are selected to indicate more than 90 percent information of all 16 soil indexes

and thus soil fertility status can be expressed by fewer indexes.

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