干旱区生态环境知识资源中心(Arid): Correlation between Landscape Pattern and Net Primary Productivity of Vegetation: A Case Study in the Arid and Semi-Arid Regions of Northwest China

Arid

DOI	10.3390/land12112004
	Correlation between Landscape Pattern and Net Primary Productivity of Vegetation: A Case Study in the Arid and Semi-Arid Regions of Northwest China
	Xu, Congrui; Li, Chuanhua; Bourque, Charles
通讯作者	Li, CH
来源期刊	LAND
EISSN	2073-445X
出版年	2023
卷号	12 期号:11
英文摘要	Human activities and environmental changes have influenced the changes in landscape patterns, which in turn profoundly impact the variation in net primary productivity (NPP) of vegetation. Understanding the relationship between landscape patterns and NPP is of significant importance for maintaining ecosystem stability and improving the ecological environment. In this study, six land use types in the arid and semi-arid regions of Northwest China were selected, and five landscape pattern indices at the landscape level and four landscape pattern indices at the class level were used. Pearson correlation and multiple linear regression models were employed to analyze the relationship between landscape indices and NPP at a 100 km x 100 km grid scale. The results indicate that there are varying degrees of correlation between landscape pattern indices and NPP from 2001 to 2020, with different levels of variation over the 20-year period. The correlation between indices and NPP is higher at the class level than at the landscape level, and the increase in landscape abundance and fragmentation promotes an increase in NPP. At the landscape level, three landscape indices, namely NP (Number of Patches), PR (Patch Richness), and SHDI (Shannon's Diversity Index), explain 45.4% of the variation in NPP. At the class level, NP, TE (Total Edge Length), and IJI (Dispersion and Juxtaposition Index) are the main influencing factors for NPP in cropland, forestland, and grassland. Therefore, in ecological governance, it is necessary to consider landscape pattern changes appropriately to maintain ecosystem stability.
英文关键词	arid and semi-arid regions in Northwest China net primary productivity landscape pattern change landscape pattern index multiple linear regression model
类型	Article
语种	英语
开放获取类型	gold
收录类别	SSCI
WOS记录号	WOS:001119962200001
WOS关键词	GORGES RESERVOIR AREA ; CLIMATE-CHANGE ; LAND ; METRICS ; COVER ; TERRESTRIAL ; DESERTIFICATION ; DEGRADATION ; GRASSLAND ; SATELLITE
WOS类目	Environmental Studies
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/2XILL650/397704
推荐引用方式 GB/T 7714	Xu, Congrui,Li, Chuanhua,Bourque, Charles. Correlation between Landscape Pattern and Net Primary Productivity of Vegetation: A Case Study in the Arid and Semi-Arid Regions of Northwest China[J],2023,12(11).
APA	Xu, Congrui,Li, Chuanhua,&Bourque, Charles.(2023).Correlation between Landscape Pattern and Net Primary Productivity of Vegetation: A Case Study in the Arid and Semi-Arid Regions of Northwest China.LAND,12(11).
MLA	Xu, Congrui,et al."Correlation between Landscape Pattern and Net Primary Productivity of Vegetation: A Case Study in the Arid and Semi-Arid Regions of Northwest China".LAND 12.11(2023).