CAJ | 학술논문

遥感方法定量监测植被与气候变化的关系已经成为全球变化研究的一个重要领域。攀西地区是我国长江上游重要的生态屏障，对维持四川乃至我国整体生态环境的稳定具有重要作用。基于攀西地区多年M ODIS多光谱数据和气象数据对植被动态变化以及该变化与气候因子的关系进行了探讨。结果显示，ND-VI变化和气温、降水呈正相关，其中降水是影响攀西地区植被生长的主要气候因子，NDVI变化与秋季降水量变化呈现出良好的一致性；研究区植被长势与气温和降水存在一定的时滞性，主要体现在前1个月气温和降水对植被长势的影响上。
요감방법정량감측식피여기후변화적관계이경성위전구변화연구적일개중요영역。반서지구시아국장강상유중요적생태병장，대유지사천내지아국정체생태배경적은정구유중요작용。기우반서지구다년M ODIS다광보수거화기상수거대식피동태변화이급해변화여기후인자적관계진행료탐토。결과현시，ND-VI변화화기온、강수정정상관，기중강수시영향반서지구식피생장적주요기후인자，NDVI변화여추계강수량변화정현출량호적일치성；연구구식피장세여기온화강수존재일정적시체성，주요체현재전1개월기온화강수대식피장세적영향상。
It is an important research area to quantitatively studying the relationship between global climatic change and vegeta-tion change based on the remote sensing technology .Panxi area is the ecological barrier of the upper reaches of the Yangtze River ,and it is essential for the stability of the ecological environment of Sichuan as well as that of the whole China .The present article analyzes the vegetation change in 2001-2008 and the relationship between vegetation change and climatic variations of Panxi area ,based on MODIS multispectral data and meteorological data .The results indicate that NDVI is positively correlated with temperature and precipitation .The precipitation is the major factor that affects the change of vegetation in the Panxi region and the trend of NDVI is similar with autumn precipitation ;while at the same time the influence of climate has a one-month-time-lag .