干旱区地理2011，Vol.34Issue(6)：873-879,7.
亚洲中部干旱区高山林线变化及其驱动机制研究展望
Prospects on alpine timberline change and its driving mechanism in arid area of Central Asia
摘要
Abstract
The impact of climate change on forests and the feedback of forests to the climate are the focus of study on global change as well as one of the important research topic in forest ecology. The impact of the global change on forests represents significant regional variation. In the arid area of the Central Asia, the mountainous forests are changing notably with the global warming, especially for the change of the alpine trimline. On the north slope of the Tianshan Mountains with clear vegetation spectrum, the climate changed significantly in the latest 50 years, which is the ideal region for researching changes of the alpine trimline. Photogrammetry and interpretation of the satellite images with high resolution are the new techniques and methods to enhance exploration of alpine trimline change in this area, which is helpful for researching the feature and process of the variations occurring near the forest upper and lower limits of the trimline. Retrieving the key environmental variables, e. G. Soil temperature, soil moisture and canopy temperature, using Landsat TM, Terra/Aqua MODIS and AMSR - E data, meteorological data and ground-based observations can prompt study on the driving mechanism of the trimline change, this will further deepen the understanding of the response of the mountainous forest ecosystem to climate change, and enrich the contents of the forest ecology.关键词
高山林线/气候变化/驱动机理/遥感反演/亚洲中部干旱区Key words
alpine timberline/ climatic change/ driving mechanism/ remote sensing inversion/ arid area of Central Asia分类
农业科技引用本文复制引用
罗格平,戴丽,李艳忠,鲁蕾..亚洲中部干旱区高山林线变化及其驱动机制研究展望[J].干旱区地理,2011,34(6):873-879,7.基金项目
国家自然科学基金资助项目(40971066) （40971066）
