干旱区生态环境知识资源中心(Arid): Climate change weakens the positive effect of human activities on karst vegetation productivity restoration in southern China

Arid

DOI	10.1016/j.ecolind.2020.106392
	Climate change weakens the positive effect of human activities on karst vegetation productivity restoration in southern China
	Wu, Luhua; Wang, Shijie; Bai, Xiaoyong; Tian, Yichao; Luo, Guangjie; Wang, Jinfeng; Li, Qin; Chen, Fei; Deng, Yuanhong; Yang, Yujie; Hu, Zeyin
通讯作者	Bai, XY
来源期刊	ECOLOGICAL INDICATORS
ISSN	1470-160X
EISSN	1872-7034
出版年	2020
卷号	115
英文摘要	China has conducted large-scale eco-afforestation projects in karst areas for mitigating rocky desertification in recent decades. However, the benefits of karst vegetation productivity restoration and the contributions of influencing factors are unclear. We analyzed the impacts of climate change (CC) and human activity (HA) on vegetation productivity change based on the net primary productivity (NPP) by using the partial derivatives and designing eight different scenarios. Results demonstrated that the average NPP over the entire vegetation -covered karst area exhibited an unremarkable increasing trend (0.92 g C m(-2) yr(-1)) and a major decline in NPP was detected in the areas where NDVI increased from 2000 to 2015 (0.44 million km(2), 29.07%). Solar radiation (-0.91 g C m(-2) yr(-1)) was the preponderant climatic factors exhibiting negative contribution to NPP changes. A significant positive contribution was caused by HA (1.53 g C m(-2) yr(-1)) on NPP variations, while a negative contribution was induced by CC (-0.61 g C m(-2) yr(-1)). CC and HA showed the more similar contribution proportion to NPP increasing (51.94% vs 48.06%), but with great difference (68.43% vs 31.57%) for NPP decreasing. 39.83% of the areas involved in NPP decreasing was attributed to the accelerating consumption of autotrophic respiration while the rest (60.17%) was contributed by rapid decrease of gross primary productivity, respectively. In southern karst area, HA showed a positive impact (59.07%) on NPP increasing. However, the negative contribution from CC (70.72%) due to the rapid and constant decline of solar radiation completely counteracted this, leading to a greater NPP decrease. This study stresses the importance of negative effect from CC on karst vegetation productivity change and provides location guidance for further implementation of ecological protection projects in southern China.
英文关键词	Karst Climate change Human activity NPP Contribution
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000559802900002
WOS关键词	NET PRIMARY PRODUCTION ; QINGHAI-TIBET PLATEAU ; CARBON USE EFFICIENCY ; LAND-COVER CHANGE ; QUANTITATIVE ASSESSMENT ; TERRESTRIAL ECOSYSTEMS ; ECOLOGICAL RESTORATION ; GRASSLAND DEGRADATION ; HUMAN APPROPRIATION ; NORTHWEST GUANGXI
WOS类目	Biodiversity Conservation ; Environmental Sciences
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/325633
作者单位	[Wu, Luhua; Wang, Shijie; Bai, Xiaoyong; Wang, Jinfeng; Li, Qin; Chen, Fei; Deng, Yuanhong; Yang, Yujie; Hu, Zeyin] Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, 99 Lincheng West Rd, Guiyang 550081, Peoples R China; [Wu, Luhua] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Wu, Luhua; Wang, Shijie; Li, Qin; Deng, Yuanhong; Yang, Yujie; Hu, Zeyin] Chinese Acad Sci, Puding Karst Ecosyst Observat & Res Stn, Puding 562100, Peoples R China; [Bai, Xiaoyong] CAS Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Peoples R China; [Bai, Xiaoyong; Luo, Guangjie] Guizhou Educ Univ, Guizhou Prov Key Lab Geog State Monitoring Waters, Guiyang 550018, Peoples R China; [Tian, Yichao] Qinzhou Univ, Sch Resources & Environm, Qinzhou 535099, Guangxi, Peoples R China; [Wang, Jinfeng; Chen, Fei] Guizhou Univ, Coll Resources & Environm Engn, Guiyang 550025, Peoples R China
推荐引用方式 GB/T 7714	Wu, Luhua,Wang, Shijie,Bai, Xiaoyong,et al. Climate change weakens the positive effect of human activities on karst vegetation productivity restoration in southern China[J],2020,115.
APA	Wu, Luhua.,Wang, Shijie.,Bai, Xiaoyong.,Tian, Yichao.,Luo, Guangjie.,...&Hu, Zeyin.(2020).Climate change weakens the positive effect of human activities on karst vegetation productivity restoration in southern China.ECOLOGICAL INDICATORS,115.
MLA	Wu, Luhua,et al."Climate change weakens the positive effect of human activities on karst vegetation productivity restoration in southern China".ECOLOGICAL INDICATORS 115(2020).