干旱区生态环境知识资源中心(Arid): Identification of Ecological Risk Source-Sink Landscape Functions of Resource-Based Region: A Case Study in Liaoning Province, China

Arid

DOI	10.3390/land12101921
	Identification of Ecological Risk Source-Sink Landscape Functions of Resource-Based Region: A Case Study in Liaoning Province, China
	Wang, Shaoqing; Zhao, Yanling; Ren, He; Zhu, Shichao; Yang, Yunhui
通讯作者	Zhao, YL
来源期刊	LAND
EISSN	2073-445X
出版年	2023
卷号	12 期号:10
英文摘要	Ecological risk assessment plays an important role in ecosystem management and conservation. Conventional landscape-level assessment can only estimate the ecological risk level. It does not define ecological risk types, resulting in a lack of targeted regulation methods. This study establishes a model for identifying ecological risk-related source-sink landscape functions according to (1) source-sink landscape theory, (2) the responses of landscape types to ecological risks, and (3) the key influences on ecological risk. Four ecological risk source-sink landscape functions were mapped as a grid to understand their distribution. Natural and human activity factors were analyzed to determine their effects. After comprehensively considering the ecological risk levels, types of ecological risk, source-sink landscape functions, and their influencing factors, six principles and twenty-four targeted regulation strategies were proposed. Take the Liaoning province, China, as an example. The results prove that more than 80% of the grids were affected by the ecological risk sink landscape function for different and multiple ecological risks in the study area. Landscapes with the source function were mainly located in central cities and coastal areas. About 65% of the grids with sink landscape functions had medium, moderate-high, and high ecological risks. More than 75% of the grids with source landscape functions had medium, moderate-low, and low ecological risks. Local terrain features, vegetation, and climate were closely related to the source or sink landscape function of a grid. The land use type converted to artificial surface had the highest driving effects (q value) on multiple ecological risk source-sink landscape functions, and had a significant difference between other factors. The driving effects of land use type converted to artificial surface and road network density gradually increased with the risk level. The influences of GDP and population density gradually weakened with the level. The influence of interaction between any two factors was stronger than the influence of a single factor on ecological risk. The proposed assessment model can help to identify specific ecological risk at the grid level, and combined with the regulation strategy, the scientific basis can be provided for the regulation and management of different ecological risks.
英文关键词	source-sink landscape theory ecological risk regulation strategy ecological risk management Liaoning province
类型	Article
语种	英语
开放获取类型	gold
收录类别	SSCI
WOS记录号	WOS:001095137900001
WOS关键词	SOIL WIND EROSION ; LAND-USE ; SUSTAINABLE MANAGEMENT ; ROCKY DESERTIFICATION ; INNER-MONGOLIA ; ROAD NETWORK ; CONVERSION ; SENSITIVITY ; SIMULATION ; VEGETATION
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/2XILL650/397700
推荐引用方式 GB/T 7714	Wang, Shaoqing,Zhao, Yanling,Ren, He,et al. Identification of Ecological Risk Source-Sink Landscape Functions of Resource-Based Region: A Case Study in Liaoning Province, China[J],2023,12(10).
APA	Wang, Shaoqing,Zhao, Yanling,Ren, He,Zhu, Shichao,&Yang, Yunhui.(2023).Identification of Ecological Risk Source-Sink Landscape Functions of Resource-Based Region: A Case Study in Liaoning Province, China.LAND,12(10).
MLA	Wang, Shaoqing,et al."Identification of Ecological Risk Source-Sink Landscape Functions of Resource-Based Region: A Case Study in Liaoning Province, China".LAND 12.10(2023).