[1]李辉霞,刘淑珍.西藏自治区北部草地退化驱动力系统分析—西藏自治区那曲县试验区[J].水土保持研究,2005,12(06):215-217.
　LI Hui-xia,LIU Shu-zhen.Systematic Analysis on the Driving Force of Grassland Degradation in North Tibet—A Case Study in Naqu County of Tibet[J].Research of Soil and Water Conservation,2005,12(06):215-217.
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西藏自治区北部草地退化驱动力系统分析—西藏自治区那曲县试验区

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 12 期数: 2005年06期 页码: 215-217 栏目: 出版日期: 1900-01-01
Title:
Systematic Analysis on the Driving Force of Grassland Degradation in North Tibet—A Case Study in Naqu County of Tibet
作者:
李辉霞1, 刘淑珍2
1. 佛山科学技术学院资源环境系, 广东, 佛山, 528000;
2. 中国科学院成都山地灾害与环境研究所, 四川, 成都, 610041
Author(s):
LI Hui-xia1, LIU Shu-zhen2
1. Department of Resource and Environment, Foshan University, Foshan, Guangdong, 528000, China;
2. Institute of Mountain Hazards and Environment, CAS, Chengdu, 610041, China
关键词:
草地退化; 驱动力; 因子分析; 藏北高原
Keywords:
grassland degradation; driving force; factor analysis; North-Tibet Plateau
分类号:
S812
摘要:
在阐述草地驱动力系统含义与结构的基础上,运用因子分析的方法对草地退化主要影响因素进行了定量分析.结果表明,自然环境的变化是试验区草地退化的根本原因,决定了草地生态系统逆向演替的总体趋势;不合理人类活动是草地退化的主要驱动因素,决定了自然条件基本相同地区的草地退化强度的空间分异.根据对草地退化的影响程度,对各影响因素排序为:蒸发量/降水量>年均降水量>牧业产值>人口数量>大风日数>年均气温>牲畜出栏率>牲畜总量.
Abstract:
The driving force system of grassland degradation is defined,and the structure is explained as well,based on which the main factors of grassland degradation are quantitatively analyzed by means of factor analysis.Results show that natural changes,which decide the trend of grassland succession,are the basic causes of grassland degradation in study area.Irrational human activities,which decide the spatial distribution of grassland degradation intensity under the similar natural conditions,are the main driving factors of grassland degradation.The order sorted by impact degree is evaporation/rainfall>annualmean>rainfall>output value of livestock production>population>days with wind of gale force>annual mean temperature>marketing rate of stock>number of livestock.

参考文献/References:

[1] 刘淑珍,周麟,仇崇善,等.西藏自治区那曲地区草地退化沙化研究[M].拉萨:西藏人民出版社,1999.
[2] 西藏自治区绘测局.西藏自治区地图册[M].北京:中国地图出版社,2000.
[3] 李辉霞,刘淑珍.基于NDVI的西藏自治区草地退化评价模型[J].山地学报,2003,21(增):69-71.
[4] 石玉林,陈百明.中国土地生产能力及人口承载量研究[M].北京:中国人民大学出版社,1991.

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备注/Memo

收稿日期:2005-1-10。
基金项目:佛山科学技术学院项目“基于3S技术的草地植被退化与土壤退化互动关系研究”;国家重大基金项目(50099620)资助
作者简介:李辉霞(1978- ),女,广东新丰人,博士,副教授,主要从事"3S"技术应用及山地环境方面的研究,已发表研究论文30余篇.

更新日期/Last Update: 1900-01-01