干旱区生态环境知识资源中心(Arid): The effects of various degrees of meteorological drought on forest vegetation in ecologically Fragile Karst Areas of Guangxi, China

Arid

DOI	10.1080/09593330.2024.2386864
	The effects of various degrees of meteorological drought on forest vegetation in ecologically Fragile Karst Areas of Guangxi, China
	Chen, Yanli; Xie, Ying; Li, Mingzhi; Xie, Min; Mo, Weihua
通讯作者	Chen, YL
来源期刊	ENVIRONMENTAL TECHNOLOGY
ISSN	0959-3330
EISSN	1479-487X
出版年	2024
英文摘要	Drought presents a major challenge to the management of rocky desertification and ecological restoration in the delicate karst ecosystems of Guangxi. In this study, the normalized difference vegetation index (NDVI), fractional vegetation cover (FVC) and net primary productivity (NPP) were selected as vegetation remote sensing parameters, and the spatial response characteristics of different types of vegetation in karst areas of Guangxi Province to light, moderate, severe and extreme drought were analyzed to provide scientific basis for the evaluation of the impact of drought on vegetation in karst areas. The results are as follows: (1) NDVI, FVC and NPP showed a fluctuating increasing trend from 2000 to 2022, and the increasing rates were 0.058, 6.90%, and 43.3gC.m-2 per decade respectively. During this period, the number of light, moderate and severe drought days showed a decreasing trend, but the number of extreme drought days tended to increase. (2) The negative correlation of NDVI, FVC and NPP and drought increased from moderate to extreme drought, and from light to extreme drought, the negative correlation between NDVI and FVC and drought decreased, while that of NPP increased. (3) Light and moderate droughts had obvious negative impact on Chinese fir and broad-leaved forest, whereas severe and extreme droughts had obvious negative effect on eucalyptus and bamboo forest. [GRAPHICS]
英文关键词	Karst drought fractional vegetation cover net primary productivity normalized difference vegetation index
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001288922500001
WOS关键词	CLIMATE ; TEMPERATURE ; COVER
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/403673
推荐引用方式 GB/T 7714	Chen, Yanli,Xie, Ying,Li, Mingzhi,et al. The effects of various degrees of meteorological drought on forest vegetation in ecologically Fragile Karst Areas of Guangxi, China[J],2024.
APA	Chen, Yanli,Xie, Ying,Li, Mingzhi,Xie, Min,&Mo, Weihua.(2024).The effects of various degrees of meteorological drought on forest vegetation in ecologically Fragile Karst Areas of Guangxi, China.ENVIRONMENTAL TECHNOLOGY.
MLA	Chen, Yanli,et al."The effects of various degrees of meteorological drought on forest vegetation in ecologically Fragile Karst Areas of Guangxi, China".ENVIRONMENTAL TECHNOLOGY (2024).