干旱区生态环境知识资源中心(Arid): Eco-geographical Regionalization of China: An Approach Using the Rough Set Method

Arid

DOI	10.1007/s11769-022-1259-3
	Eco-geographical Regionalization of China: An Approach Using the Rough Set Method
	Deng Haoyu; Wu Shaohong; Yin Yunhe; Gao Jiangbo; Zhao Dongsheng
通讯作者	Wu, SH
来源期刊	CHINESE GEOGRAPHICAL SCIENCE
ISSN	1002-0063
EISSN	1993-064X
出版年	2022
卷号	32 期号:1 页码:93-109
英文摘要	Eco-geographical regionalization involves dividing land into regions by considering both intra-regional consistency and interregional disparity and is based on the pattern of differentiation of eco-geographical elements. Owing to the complexity of the land surface, and the limitation of data and appropriate methods, regions in China have hitherto been mapped manually, meaning that the process of mapping was non-repeatable. To make the regionalization technique repeatable, this study aimed to extract and quantify the expert knowledge of regionalization using an automated method. The rough set method was adopted to extract rules of regionalization based on the existing eco-geographical regionalization map of China, as well as its corresponding meteorological and geological datasets. Then, the rules for regionalization were obtained hierarchically for each natural domain, each temperature zone, and each humidity region. Owing to differences in zonal differentiation, the rule extraction sequence for the eastern monsoon zone and Tibetan Alpine zone was temperature zone first followed by humidity region, with the reverse order being applied for the northwest arid/semi-arid zone. Results show that the extracted indicators were similar to those of the existing (expert-produced) regionalization scheme but more comprehensive. The primary indicator for defining temperature zones was the >= 10 degrees C growing season, and the secondary indicators were the January and July mean temperatures. The primary and secondary indicators for identifying humid regions were aridity index and precipitation, respectively. Eco-geographical regions were mapped over China using these rules and the gridded indicators. Both the temperature zones and humidity regions mapped by the rules show >= 85% consistency with the existing regionalization, which is higher than values for mapping by the commonly used simplified method that uses the classification of one indicator. This study demonstrates that the proposed rough set method can establish eco-geographical regionalization that is quantitative and repeatable and able to dynamically updated.
英文关键词	Eco-geographical regionalization boundary rough set China
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:000740255000007
WOS关键词	CLIMATE-CHANGE ; ARIDITY ; SYSTEM ; TRENDS ; EVAPOTRANSPIRATION ; DELINEATION ; SELECTION ; BOUNDARY ; MODELS ; REGION
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/2XILL650/376485
推荐引用方式 GB/T 7714	Deng Haoyu,Wu Shaohong,Yin Yunhe,et al. Eco-geographical Regionalization of China: An Approach Using the Rough Set Method[J],2022,32(1):93-109.
APA	Deng Haoyu,Wu Shaohong,Yin Yunhe,Gao Jiangbo,&Zhao Dongsheng.(2022).Eco-geographical Regionalization of China: An Approach Using the Rough Set Method.CHINESE GEOGRAPHICAL SCIENCE,32(1),93-109.
MLA	Deng Haoyu,et al."Eco-geographical Regionalization of China: An Approach Using the Rough Set Method".CHINESE GEOGRAPHICAL SCIENCE 32.1(2022):93-109.