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Effects of long-term and large-scale ecology projects on forest dynamics in Yangtze River Basin, China

文献类型：期刊论文

作者Chen, Shanshan1,2; Wen, Zhaofei1; Zhang, Songlin1; Huang, Ping1; Ma, Maohua1; Zhou, Xu1,3; Liao, Tao1,3; Wu, Shengjun1
刊名FOREST ECOLOGY AND MANAGEMENT
出版日期2021-09-15
卷号496页码:11
关键词Ecology projects Cascading effect of ecology projects Forest growth dynamics Forest fragmentation Residual analysis Yangtze River Basin China
ISSN号0378-1127
DOI10.1016/j.foreco.2021.119463
通讯作者Wen, Zhaofei(wenzhaofei@cigit.ac.cn) ; Wu, Shengjun(wsj@cigit.ac.cn)
英文摘要To mitigate the ecological degradation in the Yangtze River Basin (YRB), a series of large-scale and long-standing ecology projects have been implemented. However, the long-term effects of the ecology projects on forest dynamics remain unclear. Here we investigated the spatiotemporal dynamics of forest growth and forest landscape in the YRB from 1982 to 2015. Effects of the ecology projects on the forest dynamics were analyzed by a two-step methodology. Firstly, two types of forest, Type I (affected by the ecology projects only) and Type II (by both climate change and the ecology projects), were distinguished by the correlation analysis between the Normalized Difference Vegetation Index (NDVI) and climate factors during 1982-1999. To calculate effects of the ecology projects on forest growth, regression analysis and residual trends method were then applied to test the effects of the growing-season NDVI (GSN) on growth of Type I and Type II forests, respectively. We found that during 1982-2015 the GSN increased significantly with an annual change rate of 0.001. The effects of ecology projects on forest growth dynamics exhibited high spatial heterogeneity. On one hand, the ecology projects induced forest restoration areas, which accounted for 34.57% and were mainly distributed in the middle and lower reaches of YRB. On the other hand, 12.07% of forest areas degenerated, which mainly located in the high mountains of YRB. The degraded forests might relate to the cascading effect of ecology projects rather than their implementations. Therefore, we suggest that such cascading effects should not be ignored and should be further investigated. Finally, since that the ecology projects were positive in increasing forest area but not in decreasing forest fragmentation, we concluded that the ecology projects may not profoundly change the forest landscape dynamics. Our findings are of potential in adjusting ecological conservation policies and achieving better ecological effectiveness.
资助项目Strategic Priority Research Program (A) of the Chinese Academy of Sciences[XDA23040303] ; National Natural Science Foundation of China[41501096] ; National Natural Science Foundation of China[51779241] ; Chongqing Municipal Bureau of Science and Technology[cstc2020jcyjzdxmX0018]
WOS研究方向Forestry
语种英语
WOS记录号WOS:000672641600012
出版者ELSEVIER
源URL[http://119.78.100.138/handle/2HOD01W0/13792]  
专题中国科学院重庆绿色智能技术研究院
通讯作者Wen, Zhaofei; Wu, Shengjun
作者单位1.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Key Lab Reservoir Aquat Environm, Chongqing 400714, Peoples R China
2.Chongqing Jiaotong Univ, Sch River & Ocean Engn, Chongqing 400074, Peoples R China
3.Chongqing Jiaotong Univ, Coll Architecture & Urban Planning, Chongqing 400074, Peoples R China
推荐引用方式
GB/T 7714		 Chen, Shanshan,Wen, Zhaofei,Zhang, Songlin,et al. Effects of long-term and large-scale ecology projects on forest dynamics in Yangtze River Basin, China[J]. FOREST ECOLOGY AND MANAGEMENT,2021,496:11.
APA Chen, Shanshan.,Wen, Zhaofei.,Zhang, Songlin.,Huang, Ping.,Ma, Maohua.,...&Wu, Shengjun.(2021).Effects of long-term and large-scale ecology projects on forest dynamics in Yangtze River Basin, China.FOREST ECOLOGY AND MANAGEMENT,496,11.
MLA Chen, Shanshan,et al."Effects of long-term and large-scale ecology projects on forest dynamics in Yangtze River Basin, China".FOREST ECOLOGY AND MANAGEMENT 496(2021):11.

入库方式： OAI收割

来源：重庆绿色智能技术研究院

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