内蒙古半干旱草原土壤-植被-大气相互作用——科学问题与实验计划概述  

Inner Mongolia Semi-Arid Grassland Soil-Vegetation-Atmosphere Interaction

作　　者：吕达仁[1,2,3] 陈佐忠[1,2,3] 王庚辰[1,2,3] 陈家宜[1,2,3] 季劲钧 李永宏[1,2,3] 陈洪滨 乔劲松 

机构地区：[1]中国科学院大气物理研究所中层大气与全球环境探测开放实验室 [2]中国科学院植物研究所内蒙古草原生态研究中心 [3]北京大学环境科学中心

出　　处：《气候与环境研究》1997年第3期2-12,共11页Climatic and Environmental Research

基　　金：国家自然科学基金;中国科学院"九五"重大项目B资助

摘　　要：“内蒙古半干旱草原土壤－植被－大气相互作用（ＩｎｎｅｒＭｏｎｇｏｌｉａＳｅｍｉ－ＡｒｉｄＧｒａｓｌａｎｄＳｏｉｌ－Ｖｅｇｅｔａｔｉｏｎ－ＡｔｍｏｓｐｈｅｒｅＳｕｒｆａｃｅＳｔｕｄｙ，ＩＭＧＲＡＳＳ）”是国家自然科学基金委在“九五”期间支持的跨学部重大项目。该项目是全球变化研究的一个重要组成部分，主要着眼于具有全球代表性的温带半干旱草原区域中土壤－植被－大气相互作用的过程与参数化方案研究，理解在人类活动逐步增强背景下气候变化对草原生态的作用与反馈，定量了解中纬半干旱草原在温室气体排放与生物地球化学循环中的作用，发展利用卫星定量遥感陆气相互作用的反演方法与集成。这一项目将由一项中尺度综合观测和几项研究课题构成，希望成为我国对全球变化研究的新的独特贡献，亦为温带半干旱草原可持续发展提供进一步的对策依据。本文简要介绍ＩＭＧＲＡＳＳ项目的科学问题与实验计划。Inner Mongolia Semi-Arid Grassland Soil-Vegetation-Atmosphere Interaction (IMGRASS) is a major project of multi-discipline research approved and funded by National Natural Science Foundation of China (NSFC) in the period of Ninth National Planning Period (1996～2000) This project is part of Chinese Global Change research program Its main focus is the process and parameterization study of soil-vegetation-atmosphere interaction in temperate semi-arid grassland region which is one of major land types of world land surface, to understand the impact and feedback of both natural climate change and increasing anthropogenic influence to grassland ecology, quantifying the function of semi-arid grassland in global budget of greenhouse gases as well as biogeochemical cycles, to develop and integrate the retrieval methods for satellite remote sensing of land surface-atmosphere system IMGRASS is consisted of a mesoscale field experiment and five research subjects It is expected the implementation of IMGRASS will make unique contribution to global change research as well as the sustainable development of temperate semi-arid grassland area This paper will briefly introduce the scientific objective and experimental plan of IMGRASS

关 键 词：内蒙古 全球变化 温带半干旱草原 陆面过程参数化 地-气系统遥感 

分 类 号：S812.2[农业科学—草业科学]