摘要
根据中国干湿区分布图,选取典型的干旱地区(额济纳地区)、半干旱/半湿润(关中盆地/黄土高原)和湿润地区(鄱阳湖地区)为研究区域。基于1982～2000年的NDVI数据和1981～2000年3个研究区气象观测资料,探讨了不同干湿分布区植被NDVI与气候因子(温度、降水)之间相互响应关系。结果表明,植被对气候因子的响应关系中,干旱地区(额济纳地区)植被对降水的变化较为敏感;半湿润/半干旱地区(关中盆地/黄土高原地区)植被对温度和降水的变化均较为敏感;而湿润地区(鄱阳湖地区)植被对温度的变化敏感;植被对气候因子的影响中,干旱地区(额济纳地区)前一年冬季植被NDVI与当年夏季温度、降水的分别呈显著的负、正相关;而半干旱/半湿润地区(关中盆地/黄土高原地区)当年植被NDVI与当年温度呈显著正相关。
Using the distribution of arid and humid regions of China,the typical arid region （Ejina）,the typical semi-arid/semi-humid region（Guangzhong basin/Loess Plateau）and the typical humid region（Poyang Lake basin） were selected as the study areas. Based on the NDVI datasets from 1982 to 2000 and the climatic factors datasets of three study areas from 1981 to 2000,the inactions between vegetation and climatic factors in typical and humid regions were discussed. The results showed that in the responses of vegetation to climate vegetation in the typical arid region （Ejina） and the typical humid region were more sensitive to precipitation and to temperature respectively,while vegetation in the typical semi-arid/semi-humid region （Guangzhong basin/Loess Plateau） was more sensitive to both temperature and precipitation; in the influences of vegetation to climate,there was a remarkable negative correlation between the past winter NDVI and the present summer temperature and a significant positive correlation between the past winter NDVI and the present summer precipitation. Thus,for the typical the typical semi-arid/semi-humid region （Guangzhong basin/Loess Plateau）,there exited a significant positive correlation between the present spring NDVI and the present summer temperature.
出处
《安徽农业科学》
CAS
北大核心
2010年第9期4713-4716,共4页
Journal of Anhui Agricultural Sciences
基金
南京信息工程大学科研基金项目(20070005)
关键词
典型干湿区
NDVI
气候因子
温度
降水
Typical arid and humid regions
NDVI
Climatic factors
Temperature
Precipitation
作者简介
孙善磊（1982-），男。江苏沛县人，博士研究生，研究方向：陆气相互作用、气候数值模拟、气候资源、GIS。E-mail：PP-sunsanlei@163．com。
