文献类型：期刊文献

英文题名：The Effects of Spatiotemporal Changes in Land Degradation on Ecosystem Services Values in Sanjiang Plain, China

作者：Yan, Fengqin[1,2,3,4];Zhang, Shuwen[1];Liu, Xingtu[1];Chen, Dan[1,5];Chen, Jing[5,6];Bu, Kun[1];Yang, Jiuchun[1];Chang, Liping[1]

第一作者：Yan, Fengqin

通讯作者：Zhang, SW[1]

机构：[1]Chinese Acad Sci, Northeast Inst Geog & Agroecol, Changchun 130102, Peoples R China;[2]Univ Chinese Acad Sci, Beijing 100049, Peoples R China;[3]Auburn Univ, Int Ctr Climate & Global Change Res, Auburn, AL 36849 USA;[4]Auburn Univ, Sch Forestry & Wildlife Sci, Auburn, AL 36849 USA;[5]Jilin Univ, Coll Earth Sci, Changchun 130061, Peoples R China;[6]Beijing Union Univ, Coll Arts & Sci, Beijing 100083, Peoples R China

第一机构：Chinese Acad Sci, Northeast Inst Geog & Agroecol, Changchun 130102, Peoples R China

通讯机构：[1]corresponding author), Chinese Acad Sci, Northeast Inst Geog & Agroecol, Changchun 130102, Peoples R China.

年份：2016

卷号：8

期号：11

外文期刊名：REMOTE SENSING

收录：;EI(收录号：20172203712264);Scopus(收录号：2-s2.0-85018737114);WOS:【SSCI(收录号:WOS:000388798400038)，SCI-EXPANDED(收录号:WOS:000388798400038)】；

基金：This work was supported by Technological Basic Research Program of China, No. 2013FY111800; National Natural Science Foundation of China, No. 41571167 and China Scholarship Council. We thank support from International Center for Climate and Global Change Research group, Auburn University (AU), USA. We thank Bowen Zhang, Hanqin Tian and Shufen Pan and Jia Yang of AU for their valuable suggestions. We thank Lingxue Yu, Chaobin Yang for collecting the data. We also thank the anonymous reviewers for their comments and suggestions on the first draft of the paper.

语种：英文

外文关键词：land degradation; ecosystem services value; land use and land cover change; spatiotemporal changes; land use structure; Sanjiang Plain

摘要：Sanjiang Plain has undergone dramatic land degradation since the 1950s, which has caused negative effects on ecosystems services and sustainability. In this study, we used trajectory analysis as well as the Lorenz curve, Gini coefficient and relative land use suitability index (R) to analyze spatiotemporal changes of land degradation from 1954 to 2013 and to make a preliminary estimation of the role of human activities in observed environmental changes using a five-stage LULC data. This study also explored the effect of land degradation on the values and structure of ecosystem services. Our results indicated that more than 70% of marsh area originally present in the study area has been lost, whereas less than 30% was preserved. Dry farmland and paddy increased rapidly at the expense of marsh, forest and grassland. Land use structure became more unsuitable during the past 60 years. Compared with natural factors, human activities played a dominant role (89.67%) in these changes. This dramatic land degradation caused the significant loss of ecosystem services values and the changes in the structure of ecosystem services. These results confirmed the effectiveness of combining temporal trajectory analysis, the Lorenz curve/Gini coefficient and the R index in analyzing spatiotemporal changes in progressive land degradation. Also, these findings highlight the necessity of separating dry farmland from paddy when studying land degradation changes and the effects on ecosystem services in regions where dry farmland has often been converted to paddy.