期刊论文

Evolution Dynamic Characteristics of Land Desertification in Zoige County,China

Kang, Wenxing

中文

林业科学

1001-7488

2016

52

1

159-165

10.11707/j.1001-7488.20160119

国家科技支撑计划“西南生态安全屏障决策体系”（2011BAC09B08-07）；

本校为第一且通讯机构

[目的]探讨若尔盖县土地沙化演变趋势,为防沙治沙提供科学依据.[方法]利用若尔盖县 1994, 1999,2004,2009 年4 次土地沙漠化监测数据,采用生物统计学的转移矩阵分析方法研究沙化程度的演变动态过程.[结果]1994—2009 年,若尔盖县沙地以每年11. 08%的速率扩展,2009 年沙地面积是1994 年的4. 5 倍; 不同沙化程度沙地的年均扩增率依次是:极重度(24. 49%) >轻度(12. 03%) >重度(7. 80%) >中度沙化地(6. 68%);沙地沙化程度以轻度为主(75. 69%),土地沙化还处于初始阶段,正是沙化治理的有利时期;经过15 年的沙化演变后,不同程度沙化地结构发生变化,岀现中度和重度沙化地比例下降,轻度和极重度沙化地比例...

Objective: The situation of land desertification in Zoige County of southwest China is severe. In order to provide scientific basis for prevention and control of futher desertification in this area, it is necessary to explore the evolution trend of land desertification in Zoige County. Method: The process of evolution dynamics of land desertification was studied with the transfer matrix of biostatistics based on the data of four land desertification monitoring data from 1994, 1999, 2004, and 2009 in Zoige County. Result: Desertification expansi...