缙云山森林土壤速效K的分布特征及其与物种多样性的关系

被引：16

作者：

杨万勤

钟章成

陶建平

徐祥英

机构：

[1] 西南师范大学生命科学学院

来源：

生态学杂志 | 2001年 / 06期

基金：

国家自然科学基金重点项目;

关键词：

soil available potassium(K); plant species diversity; distribution characteristics; correlation; Mt.Jinyun/Chongqing;

D O I：

10.13292/j.1000-4890.2001.0107

中图分类号：

S714.3 [森林土壤生物学];

学科分类号：

摘要：

The distribution characteristics of soil available K and its correlations with plant species diversity in the forest ecosystem of Mt.Jinyun are studied in this paper.The results are as follows:①Except for shrub-grassland,the content of available K in soil profiles under different communities has an evident gradient,i.e.,A(humus horizon)>B(deposited horizon)>C(parent material horizon).②The content of available K in A and B horizons gradually increases along the successional direction,i.e.,shrub-grassland<Pinus massoniana pure forest<P.massoniana-Symplocos setchuensis mixed forest<evergreen broadleaved forest.This law does not exist in the C horizons.③Different degrees of correlations exist between the content of soil available K and plant species diversity.The correlation between species diversities of trees and grasses and the content of available K in A and B horizons is the most significant.

引用

页码：1 / 3

页数：3

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