[1]郭敏杰,张亭亭,张建军,等.1982-2006年黄土高原地区植被覆盖度对气候变化的响应[J].水土保持研究,2014,21(05):35-40,48.
　GUO Min-jie,ZHANG Ting-ting,ZHANG Jian-jun,et al.Response of Vegetation Coverage to Climate Change in the Loess Plateau in 1982-2006[J].Research of Soil and Water Conservation,2014,21(05):35-40,48.
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1982-2006年黄土高原地区植被覆盖度对气候变化的响应

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 21 期数: 2014年05期 页码: 35-40,48 栏目: 出版日期: 2014-10-28
Title:
Response of Vegetation Coverage to Climate Change in the Loess Plateau in 1982-2006
作者:
郭敏杰1,2, 张亭亭1,3, 张建军1,2, 陈利利1,3, 张晓萍1,3
1. 中国科学院 水利部 水土保持研究所, 黄土高原土壤侵蚀与旱地农业国家重点室, 陕西 杨凌 712100;
2. 中国科学院研究生院, 北京 100049;
3. 西北农林科技大学 资源环境学院, 陕西 杨凌 712100
Author(s):
GUO Min-jie1,2, ZHANG Ting-ting1,3, ZHANG Jian-jun1,2, CHEN Li-li1,3, ZHANG Xiao-ping1,3
1. State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi 712100, China;
2. University of Chinese Academy of Sciences, Beijing 100049, China;
3. College of Natural Resources and Environment, Northwest A & F University, Yangling, Shaanxi 712100, China
关键词:
植被覆盖度; 气候变化; 响应; 黄土高原地区
Keywords:
vegetation coverage; climate change; response; Loess Plateau Area
分类号:
P461+.7;TP79
摘要:
基于黄土高原地区1982—2006年GIMMS AVHRR NDVI数据，获取地面植被覆盖度，并采用ArcGIS 9.3和ANUSPLIN 4.3分别对82个地面气象站点降水和温度数据进行插值处理，以此分析黄土高原地区植被覆盖度时空变化特征及其对气候变化的响应，为区域生态环境改善提供参考。结果表明：（1）黄土高原地区区域平均植被覆盖度为38%。植被覆盖度区域差异明显，在空间上呈东南高、西北低的分布特征。（2）近25年来，植被活动在相对稳定的态势下趋于增强，植被覆盖度增速为0.75%/10 a。在植被覆盖度变化趋势上，植被覆盖状况保持基本不变的面积为40.6%，趋于改善的面积（42%）大于退化面积（17.4%）。（3）黄土高原地区年降水呈不显著下降趋势，减少速率为1.9 mm/a；年均温度呈显著上升趋势，增速为0.7℃/10 a，气候趋于暖干化。（4）植被覆盖度与年降水量和年均温的偏相关性均达到显著，但空间差异明显。其中植被生长对降水因子的响应更为敏感。
Abstract:
This paper studied vegetation coverage variations and the response of vegetation change to climate change in Loess Plateau in order to provide the reference for improving the regional ecological environment based on the data from GIMMS AVHRR NDVI of China from 1982 to 2006 and the data of precipitation and temperature from 82 weather stations interpolated by GIS 9.3 and spline interpolating method from ANUSPLIN 4.3 software. The results show that: (1) the Loess Plateau has a low vegetation coverage, which is only 38%, and vegetation coverage was obviously different in different regions, the value in southeast is high, while in northwest is low; (2) for almost 25 years, the vegetation activity of the Loess Plateau had been enhanced in a relatively stable situation, and vegetation coverage had increased by 0.75%/10 a, under this changing trend, the area of the vegetation coverage kept almost unchanged by 40.6% which tended to the improved vegetation coverage areas (42%) and was greater than the degradation area(17.4%); (3) In Loess Plateau, the annual precipitation has showed a decreasing trend indistinctively by 1.9 mm/a and the annual temperature has showed an increasing trend markedly by 0.7℃/10 a during 25 years. The climate has become warm and dry; (4) the correlation analysis between vegetation coverage and annual precipitation and temperature was obviously different in different regions which is an extremely significant positive correlation, but there is an obvious difference in space. The vegetation growth is sensitive to precipitation.

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备注/Memo

收稿日期:2013-12-17;改回日期:2014-03-30。
基金项目:国家自然基金重点项目“气候变化背景下黄土高原土地利用影响径流的空间尺度效应”（41230852）；国家自然科学基金项目“北洛河水沙动态过程及对退耕还林（草）响应机理”（41101265）；中科院知识创新项目（KZCX2-XB3-13）；中国科学院重点部署项目“近百年黄土高原侵蚀环境与水沙变化”（KZZ-EW-04-03-03）
作者简介:郭敏杰(1987-),女,河南省项城市人,硕士,主要研究方向:RS/GIS在水土保持中的应用。E-mail:guomjmdw@sina.com
通讯作者:张晓萍(1971-),女,河南省焦作人,博士,研究员,从事区域水土流失规律及水土保持方向研究。E-mail:zhangxp@ms.iswc.ac.cn

更新日期/Last Update: 1900-01-01