干旱区生态环境知识资源中心(Arid): Quantitatively assessing the effects of climate change and human activities on ecosystem degradation and restoration in southwest China

Arid

DOI	10.1071/RJ18111
	Quantitatively assessing the effects of climate change and human activities on ecosystem degradation and restoration in southwest China
	Sun, Z. G.1; Wu, J. S.2; Liu, F.1; Shao, T. Y.3; Liu, X. B.1; Chen, Y. Z.4; Long, X. H.3; Rengel, Z.5
通讯作者	Sun, Z. G.
来源期刊	RANGELAND JOURNAL
ISSN	1036-9872
EISSN	1834-7541
出版年	2019
卷号	41 期号:4 页码:335-344
英文摘要	Identifying the effects of climate change and human activities on the degradation and restoration of terrestrial ecosystems is essential for sustainable management of these ecosystems. However, our knowledge of methodology on this topic is limited. To assess the relative contribution of climate change and human activities, actual and potential net primary productivity (NPPa and NPPp respectively), and human appropriation of net primary productivity (HANPP) were calculated and applied to the monitoring of forest, grassland, and cropland ecosystems in Yunnan-Guizhou-Sichuan Provinces, southwest China. We determined annual means of 476 g C m(-2) year(-1) for NPPa, 1314 g C m(-2) year(-1) for NPPp, and 849 g C m(-2) year(-1) for HANPP during the period between 2007 and 2016. Furthermore, the area with an increasing NPPa accounted for 75.12% of the total area of the three ecosystems. Similarly, the areas with increasing NPPp and HANPP accounted for 77.60 and 57.58% of the study area respectively. Furthermore, we found that similar to 57.58% of areas with ecosystem restored was due to climate change, 23.39% due to human activities, and 19.03% due to the combined effects of human activities and climate change. In contrast, climate change and human activities contributed to 19.47 and 76.36%, respectively, of the areas of degraded ecosystem. Only 4.17% of degraded ecosystem could be attributed to the combined influences of climate change and human activities. We conclude that human activities were mainly responsible for ecosystem degradation, whereas climate change benefitted ecosystem restoration in southwest China in the past decade.
英文关键词	human appropriation of net primary productivity (HANPP) net primary productivity (NPP) productivity model terrestrial degradation terrestrial restoration Yunnan-Guizhou-Sichuan Provinces spatial distribution
类型	Article
语种	英语
国家	Peoples R China ; Australia
收录类别	SCI-E
WOS记录号	WOS:000487036500005
WOS关键词	NET PRIMARY PRODUCTIVITY ; LAND DEGRADATION ; DESERTIFICATION ; TEMPERATURE ; PROVINCE ; PRECIPITATION ; AGRICULTURE ; VARIABILITY ; TRENDS ; MATTER
WOS类目	Ecology
WOS研究方向	Environmental Sciences & Ecology
来源机构	University of Western Australia
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/218312
作者单位	1.Nanjing Agr Univ, Coll Agrograssland Sci, Nanjing 210095, Jiangsu, Peoples R China; 2.CAAS, Inst Environm & Sustainable Dev Agr, Beijing 100081, Peoples R China; 3.Nanjing Agr Univ, Coll Resources & Environm Sci, Jiangsu Prov Key Lab Marine Biol, Nanjing 210095, Jiangsu, Peoples R China; 4.Nanjing Forestry Univ, Coll Biol & Environm, Nanjing 210037, Jiangsu, Peoples R China; 5.Univ Western Australia, Sch Agr & Environm, Soil Sci & Plant Nutr, 35 Stirling Highway, Perth, WA 6009, Australia
推荐引用方式 GB/T 7714	Sun, Z. G.,Wu, J. S.,Liu, F.,et al. Quantitatively assessing the effects of climate change and human activities on ecosystem degradation and restoration in southwest China[J]. University of Western Australia,2019,41(4):335-344.
APA	Sun, Z. G..,Wu, J. S..,Liu, F..,Shao, T. Y..,Liu, X. B..,...&Rengel, Z..(2019).Quantitatively assessing the effects of climate change and human activities on ecosystem degradation and restoration in southwest China.RANGELAND JOURNAL,41(4),335-344.
MLA	Sun, Z. G.,et al."Quantitatively assessing the effects of climate change and human activities on ecosystem degradation and restoration in southwest China".RANGELAND JOURNAL 41.4(2019):335-344.