DOI: 10.1016/j.jag.2016.09.013
Scopus记录号: 2-s2.0-85018197503
论文题名: Quantifying the effectiveness of ecological restoration projects on long-term vegetation dynamics in the karst regions of Southwest China
作者: Tong X ; , Wang K ; , Yue Y ; , Brandt M ; , Liu B ; , Zhang C ; , Liao C ; , Fensholt R
刊名: International Journal of Applied Earth Observation and Geoinformation
ISSN: 15698432
出版年: 2017
卷: 54 起始页码: 105
结束页码: 113
语种: 英语
英文关键词: Ecological restoration projects
; Growing season NDVI
; Restrend
; Rocky desertification
Scopus关键词: desertification
; environmental degradation
; growing season
; karst
; nature conservation
; remote sensing
; restoration ecology
; vegetation dynamics
; China
; Guangxi Zhuangzu
; Guizhou
; Yunnan
英文摘要: To alleviate the severe rocky desertification and improve the ecological degradation conditions in Southwest China, the national and local Chinese governments have implemented a series of Ecological Restoration Projects (ERPs) since the late 1990s. This study proposed a remote sensing based approach to evaluate the long-term efforts of the ERPs started in 2000. The method applies a time-series trend analysis of satellite based vegetation data corrected for climatic influences to reveal human induced vegetation changes. The improved residual method is combined with statistics on the invested project funds to derive an index, Project Effectiveness Index (PEI), measuring the project effectiveness at county scale. High effectiveness is detected in the Guangxi Province, moderate effectiveness in the Guizhou Province, and low and no effectiveness in the Yunnan Province. Successful implementations are closely related to the combined influences from climatic conditions and human management. The landforms of Peak Forest Plain and Peak Cluster Depression regions in the Guangxi Province are characterized by temperate climate with sufficient rainfall generally leading to a high effectiveness. For the karst regions of the Yunnan and Guizhou Provinces with rough terrain and lower rainfall combined with poor management practices (unsuitable species selection, low compensation rate for peasants), only low or even no effect of project implementations can be observed. However, the effectiveness distribution is not homogeneous and counties with high project effectiveness in spite of complex natural conditions were identified, while counties with negative vegetation trends despite relatively favorable conditions and high investments were also distinguished. The proposed framework is expected to be of high relevance in general monitoring of the successfulness of ecological conservation projects in relation to invested funds. © 2016 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/79949
Appears in Collections: 气候变化事实与影响
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作者单位: aKey Laboratory for Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, China; bHuanjiang Observation and Research Station for Karst Ecosystem, Chinese Academy of Sciences, Huanjiang, China; University of Chinese Academy of Sciences, Beijng, China; Department of Geosciences and Natural Resource Management, University of Copenhagen, Copenhagen, Denmark; School of Geography and Remote Sensing, Nanjing University of Information Science and Technology, Nanjing, China; Department of Geography and Geology, Algoma UniversityOntario, Canada
Recommended Citation:
Tong X,, Wang K,, Yue Y,et al. Quantifying the effectiveness of ecological restoration projects on long-term vegetation dynamics in the karst regions of Southwest China[J]. International Journal of Applied Earth Observation and Geoinformation,2017-01-01,54