全球变化研究中的中国东北森林—─草原陆地样带(NECT)  

NORTHEAST CHINA TRANSECT (NECT) FOR GLOBAL CHANGE STUDIES[WT4 ,5BZ]

作　　者：张新时[1] 周广胜[1] 高琼[1] 杨奠安[1] 倪健[1] 王权[1] 唐海萍[1] 

机构地区：[1]中国科学院植物研究所

出　　处：《地学前缘》1997年第2期145-151,共7页Earth Science Frontiers

基　　金：国家自然科学基金;国家科委"八五"攀登计划项目基金

摘　　要：陆地生态样带已成为全球变化研究的重要方法和手段。国际地圈－生物圈计划（ＩＧＢＰ）的陆地样带——中国东北森林—草原陆地样带（ＮＥＣＴ）的提出为中国全球变化研究奠定了基础。该样带在东经１１２°～１３０°３０′间沿北纬４３°３０′设置，长约１６００ｋｍ，是一条中纬度温带以降水为驱动因素的梯度，具有良好的植被、土壤、土地利用、气候等环境因素的过渡特征。文章介绍了中国东北森林—草原样带的确定、生态特征及在数据库建设、植被结构和生产力模拟以及遥感研究中取得的初步成果。Terrestrial transect has become an important and effective method for global change study, especially for global change and terrestrial ecosystems(GCTE), the core project of International Geosphere Biosphere Programme(IGBP). Northeast China transect(NECT) is one of the IGBP terrestrial transects, which will promote the study of global change and terrestrial ecosystems in China. NECT is placed along the latitute 43°30′N, between longtitudes 112° and 130°30′E, and approximately 1600km in length. It is basically a gradient driven by precipitation/moisture located in the Mid latitude of temperate zone. The vegetation zone, soil, land use and climate are charactered along an east westward continuously transitional spatial series. The selection criteria of NECT, the ecological characteristics along NECT, the preliminary studies on modeling vegetation structure and biomass, NPP distribution and remote sensing monitoring will be presented in this paper.

关 键 词：陆地样带 全球变化 森林 草原 

分 类 号：X21[环境科学与工程—环境科学] S716.3[农业科学—林学]