[1]赵中秋,蔡运龙,白中科,等.典型喀斯特地区不同土地利用类型土壤水分性能对植物生长及其生态特征的影响[J].水土保持研究,2007,14(06):37-39.
　ZHAO Zhong-qiu,CAI Yun-long,BAI Zhong-ke,et al.Effects of Soil Water Properties of Different Land Use Types on Plants’ Growth and Ecological Characteristics[J].Research of Soil and Water Conservation,2007,14(06):37-39.
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典型喀斯特地区不同土地利用类型土壤水分性能对植物生长及其生态特征的影响

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 14 期数: 2007年06期 页码: 37-39 栏目: 出版日期: 1900-01-01
Title:
Effects of Soil Water Properties of Different Land Use Types on Plants’ Growth and Ecological Characteristics
作者:
赵中秋1, 蔡运龙2, 白中科1, 付梅臣1
1. 中国地质大学(北京) 土地科学技术学院, 北京 100083;
2. 北京大学 环境学院 地表过程与环境模拟教育部重点实验室, 北京 100871
Author(s):
ZHAO Zhong-qiu1, CAI Yun-long2, BAI Zhong-ke1, FU Mei-chen1
1. School of Land Science and Technology, China University of Geosciences, Beijing 100083, China;
2. Ministry of Education Laboratory for Earth Surface Process, College of Environmental Sciences, Peking University, Beijing 100871, China
关键词:
喀斯特地区; 季节性干旱; 土壤水分性能; 植物生长; 生态特征
Keywords:
karst area; seasonal drought; soil water properties; plant growth; ecological characteristics
分类号:
S152.7;P642.25
摘要:
我国西南喀斯特地区是典型的生态脆弱区，特殊的地质地貌特征使该地区地表存水能力极差，植被可利用的水资源相对不足，季节性干旱严重。研究了该区两种土地利用类型土壤水分特征对植被的生长及生态特征的影响。在各自最大持水条件下，两种不同土地利用类型土壤上生长的植物-黑麦草（Lolium perenne L.）生物量差异显著，林地土壤生长的植物总生物量是草地土壤的3倍左右；林地土植物的叶片含水量、分蘖数、株高、叶长/叶宽等指标均明显高于草地土植株。可以认为，在西南典型喀斯特地区这一特殊的地质地貌及气候条件下，土壤水分是导致植被生产力差异的主要因素。
Abstract:
The environment is very fragile in typical karst area in southwest of China.Special geological character causes a bad water-holding capacity of the earth’s surface, which result in, consequentially, shortage of the available water resource for plant growth and severe seasonal drought.To study the effects of soils water properties of different land use types on plants’ growth and ecological characteristics, a pot experiment was conducted.The biomass of plants ryegrass (Lolium perenne) grown on soils of two different land use types were different significantly under soil water condition of 100% of field capacities respectively, and the leaf water contents, tillers number, plant height and leaf length/width of plants on soils of forest land were all higher than those on soils of grass land.It can be suggested that, in karst area with special geological character and climatic condition, soil water property is the main factor causing variation of vegetation production.

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备注/Memo

收稿日期:2007-1-24。
基金项目:国家自然科学基金重点项目（40335046）；中国地质大学（北京）“土地利用创新团队”项目
作者简介:赵中秋（1975- ），博士，副教授，主要从事土地退化的环境效应及其生态修复研究。

更新日期/Last Update: 1900-01-01