干旱区生态环境知识资源中心(Arid): Analysis of Long-Term Vegetation Trends and Their Climatic Driving Factors in Equatorial Africa

Arid

DOI	10.3390/f15071129
	Analysis of Long-Term Vegetation Trends and Their Climatic Driving Factors in Equatorial Africa
	Nooni, Isaac Kwesi; Ogou, Faustin Katchele; Prempeh, Nana Agyemang; Chaibou, Abdoul Aziz Saidou; Hagan, Daniel Fiifi Tawiah; Jin, Zhongfang; Lu, Jiao
通讯作者	Lu, J
来源期刊	FORESTS
EISSN	1999-4907
出版年	2024
卷号	15 期号:7
英文摘要	Understanding vegetation seasonality and its driving mechanisms improves decision-making in the management of ecological systems in a warming global climate. Using multiple statistical methods (i.e., trend analysis, abrupt changes, and partial correlation analysis), this study analyzed the spatiotemporal variations in the Normalized Difference Vegetation Index (NDVI) in the Equatorial Africa (EQA) region and their responses to climate factors from 1982 to 2021. The NDVI values declined at a rate of 0.00023 year-1, while the precipitation (P) and mean temperature (TMEAN) values increased at rates of 0.22 mm year-1 and 0.22 degrees C year-1, respectively. The mean minimum temperature (TMIN) had a higher rate of 0.2 degrees C year-1 than the mean maximum temperature (TMAX) at 0.02 degrees C year-1. An abrupt change analysis showed that the TMAX, P, and NDVI breakpoints occurred in 2000, 2002, and 2009, respectively; TMEAN and TMIN breakpoints occurred in 2001. The NDVI trends declined in forest and cropland areas but increased in shrubland and grassland areas. The summer NDVI trends declined for all vegetation types and were reversed in the winter season. The NDVI positively correlated with the P (r = 0.50) and TMEAN (r = 0.60). All seasonal analyses varied across four seasons. A temporal analysis was conducted using partial correlation analysis (PCR), and the results revealed that TMIN had a greater impact on the NDVI (PCR = -0.45), followed by the TMAX (PCR = 0.31) and then the P (PCR = -0.19). The annual trend showed that areas with significant greening were consistent with stronger wetter and weaker warming trends. Both precipitation and temperature showed a positive relationship with vegetation in semi-arid and arid regions but a negative relationship with humid regions. Our findings improve our insight into scientific knowledge on ecological conservation.
英文关键词	NDVI vegetation dynamics climate change precipitation temperature Equatorial Africa
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:001277012400001
WOS关键词	GLOBAL EVALUATION ; SPOT-VEGETATION ; PLANT-GROWTH ; AVHRR ; NDVI ; TEMPERATURE ; ABRUPT ; GREENNESS ; VARIABLES ; MOISTURE
WOS类目	Forestry
WOS研究方向	Forestry
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/403809
推荐引用方式 GB/T 7714	Nooni, Isaac Kwesi,Ogou, Faustin Katchele,Prempeh, Nana Agyemang,et al. Analysis of Long-Term Vegetation Trends and Their Climatic Driving Factors in Equatorial Africa[J],2024,15(7).
APA	Nooni, Isaac Kwesi.,Ogou, Faustin Katchele.,Prempeh, Nana Agyemang.,Chaibou, Abdoul Aziz Saidou.,Hagan, Daniel Fiifi Tawiah.,...&Lu, Jiao.(2024).Analysis of Long-Term Vegetation Trends and Their Climatic Driving Factors in Equatorial Africa.FORESTS,15(7).
MLA	Nooni, Isaac Kwesi,et al."Analysis of Long-Term Vegetation Trends and Their Climatic Driving Factors in Equatorial Africa".FORESTS 15.7(2024).