古尔班通古特沙漠短命植物的时空分布及影响因素研究

项目名称： 古尔班通古特沙漠短命植物的时空分布及影响因素研究

项目编号： No.31300406

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 生物科学

项目作者： 吴玲

作者单位： 石河子大学

项目金额： 20万元

中文摘要： 短命植物(Ephemerals)是一类生长在干旱荒漠地带,生活周期或年生长期很短的特殊植物类群的总称, 新疆北部准噶尔盆地是我国短命植物集中分布区域。短命植物不仅具有重要的生态作用，而且种类丰富，生境复杂，构成内陆干旱区独有的生物多样性特点，具有重要的研究价值。本项目利用遥感技术、野外定位与取样的生态观测技术相结合，在不同尺度下探讨人类活动和气候变化对新疆北部古尔班通古特沙漠早春短命植物的影响，综合分析长时间序列短命植物区域分布的空间格局及其动态变化，研究影响格局动态的主要生态因子及其效应机理，探讨短命植物动态与气候变化及人类活动之间的关系规律，为区域生态环境保护和短命植物生物多样性保育理论提供创新性认识。

中文关键词： 短命植物；古尔班通古特沙漠；时空分布；景观格局；种群

英文摘要： Study on the Spatio-temporal distribution and influencing factors of ephemerals in the Gurbantonggut Desert at multi-scales Ephemerals is a special group of desert plants,which can complete their life cycle quickly and have very short-term growth rhythm.They are mainly distributed in the northern Xinjiang and it is the unique area in our country.Studying the spatio-temporal distribution of ephemerals in it's extreme environment- - Gurbantonggut Desert can give an important meaning of discussing the distribution,the development and the evolution rule of ephemerals. Ephemerals play an important role in succession of the desert plant community, maintenance of the desert biological diversity and conservation of water and soil in desert. In this paper ,Some advanced mothods include remote sensing techniques and located field investigation were used to analyze the spatio-temporal distribution and the variation of ephemerals with long term sequence at multi-scales. By studying on the influencing factors and is's mechanism, Understanding the relation between ephemerals and climate , hunman activities,etc.,it is expect to provide some new and deeply definition for environment protecting and the diversity protecting of ephemerals.

英文关键词： ephemerals；Gurbantonggut Desert；Spatio-temporal distribution；landscape pattern；population