土地利用变化对盐池县碳储量及其价值影响  

Effects of Land use Change on Carbon Reserve and Carbon Sink Value in Yanchi County

作　　者：刘淑琴 王荣女[3] 夏朝宗[2] 侯瑞平[2] 陈建 张克斌[1] LIU Shu-qin;WANG Rong-nv;XIA Chao-zong;HOU Rui-ping;CHEN Jian;ZHANG Ke-bin(College of Soil and Water Conservation,Belting Forestry University,Beijing 100083 ,China;Academy of Forestry Investigation and Planning ,Beifing 100013, China;Northwest Forthwest Survey and Planning Institute, State Forestry Administration, Xi ＇an 710000, Shaanxi , China)

机构地区：[1]北京林业大学水土保持学院,北京100083 [2]国家林业局调查规划设计院,北京100013 [3]国家林业局西北林业调查规划设计院,陕西西安710048

出　　处：《干旱区研究》2018年第2期486-492,共7页Arid Zone Research

基　　金：中国-GEF土地退化防治伙伴关系“中国西部适应气候变化的可持续土地管理项目”(PRC-TA-8872);国家自然科学基金项目“半荒漠湿地植被群落时空分布特征研究”(30771764);生态畜牧业与沙化草地治理技术集成及产业示范(2016YFC0500908);国家林业局荒漠化定位监测项目(660550);LULUCF碳汇监测全国汇总分析(2016-29-10*)

摘　　要：LUCC对陆地生态系统碳收支的影响是当前全球气候变化研究领域的重要内容之一。根据土地利用、土地利用变化与林业碳汇计量监测数据,对盐池县2005—2013年土地利用变化与其碳汇效应进行了研究。结果表明：（1）盐池县土地利用水平位于我国平均水平以下,其转移活动主要发生在其他土地、农地、草地和林地之间。（2）2005—2013年,该县植被碳储量增加了23.96%,土壤碳储量减少了0.30%,总碳储量价值下降了5.00×10~8美元。（3）林地的增加是盐池县碳储量增多的主要原因,草地的变化与管理是影响土壤碳储量的重要因素。（4）从土地利用变化和碳储量及其价值驱动分析可以看出,对盐池县碳储量影响最大的是其他土地的转入转出活动。因此,在今后的发展中该县可以考虑从其他土地出发以此来提高该县碳储量。同时,草地和林地的经营管理也是该县碳源/碳汇变化的重要原因。The effect of LUCC on carbon budget of terrestrial ecosystem is one of the important contents in the research field of global climate change. In this study,the monitoring data of land use,land use change and forestry carbon sink were used to research the land use change and its carbon sink effects in Yanchi County during the period from 2005 to 2013. The results are as follows：（1） The land use level in the county was below the average level of China,and its transfer activities occurred mainly among other land use types,such as the farmland,grassland and forest land;（2） The carbon reserve of vegetation in the county was increased by 23. 96%,the soil carbon reserve was decreased by 0. 30%,and the total carbon sink value was decreased by 5. 00 × 10~9 US dollars during the period of 2005-2013;（3） Enlargement of forest land was the main reason for the increase of carbon reserve in Yanchi,and the change and management of grassland were the important factors that affected the soil carbon reserve;（4） From the analyzed results of land use change,carbon reserve and its price driving,it could be found that the biggest effect on the carbon reserve in Yanchi was the transfer of land use types. Therefore,the carbon reserve in the county may be improved by considering other land use types in the future development. Moreover,the grassland and forest land management would be an important cause of carbon source/sink change in the county.

关 键 词：土地利用 碳储量 碳汇价值 盐池县 

分 类 号：F426.1[经济管理—产业经济]