气候变化对三江源区沙化土地植被生物量的影响  

Effect of Climate on Desert land Vegetation Biomass in Sanjiangyuan Region

作　　者：赵串串[1] 杨晓阳[2] 张凤臣[3] 柴永煜[3] 杨兴中[2] 

机构地区：[1]陕西科技大学资源与环境学院,西安710021 [2]西北大学生命科学学院,西安710069 [3]国家林业局西北林业调查规划设计院,西安710048

出　　处：《水土保持研究》2008年第3期175-177,181,共4页Research of Soil and Water Conservation

摘　　要：对三江源区13个典型沙化土地样地植被生物量和指示种生物量进行年度连续监测，发现2006年度植被生物量、指示种生物量均比2005年有所减少，分析原因是由于气候变化造成的，2006年较2005年年平均气温升高0．2～1．0℃、年蒸发量增加54~334mm、年降水量减少60．7～164．5mm，基于以上事实分析，提出预防和治理三江源区土地沙化的相关建议。Through continuous monitoring vegetation biomass and demoted biomass in 13 typical desertland sampling plot in sanjingyuan region, the fact was found that the quantity of both desertland vegetation biomass and demoted biomass in 2006 is less than that 2005. The main reason is come from climate change. The study indicates that annual average temperature rises from 0.2℃ to 1.0℃, annual average the evaporation increases from 54mm to 334 mm and annual average precipitation reduces from 60.7 mm to 164.5 mm, in 2006 than that 2005. Finally some countermeasures are put up for prevention and protection of desertland trends in sanjiangyuan region.

关 键 词：三江源区 沙化土地 植被生物量 指示种生物量 

分 类 号：P461.7[天文地球—大气科学及气象学] S162.5[农业科学—农业气象学]