Assessing the degradation of grassland ecosystems based on the advanced local net production scaling method-The case of Inner Mongolia, China

doi:10.1002/ldr.3741

	Assessing the degradation of grassland ecosystems based on the advanced local net production scaling method-The case of Inner Mongolia, China
	Lang, Yanqing 1,2; Yang, Xiaohuan 1,2; Cai, Hongyan 1
刊名	LAND DEGRADATION & DEVELOPMENT
	2020-09-15
页码	14
关键词	ALNS method degradation and restoration grassland ecosystem Inner Mongolia net primary productivity
ISSN号	1085-3278
DOI	10.1002/ldr.3741
通讯作者	Yang, Xiaohuan(yangxh@lreis.ac.cn)
英文摘要	The gradual degradation of grasslands on a global scale goes hand-in-hand with significant challenges for agriculture and animal husbandry development. Numerous relevant policies and projects have been implemented to protect and restore Chinese ecosystems, but it is still unclear to what degree grassland ecosystems can be recovered. In view of this, we constructed an advanced local net production scaling (ALNS) method by replacing the classification method by self-organizing feature maps (SOFM) and tailoring the ideal state evaluation method in the LNS method. The ALNS method is used to analyze differences within grassland ecosystems, explore the ideal state of grassland ecosystems, and define degradation as the degree to which the actual state deviates from the ideal state, representing the degree to which grassland ecosystems can be recovered. It thereby quantifies and assesses the overall degradation of such systems in Inner Mongolia. Based on the results, more than 98.5% of the total grassland area failed to reach the ideal state, with the highest levels in the northeast with DN (degraded net primary productivity) values exceeding 200 gc/(m(2).yr), followed by the midlands with DN values from 50 to 200 gc/(m(2).yr) and the southwest with DN values between 0 and 150 gc/(m(2).yr). The ALNS method can efficiently assess grassland ecosystem degradation and can be used to indicate the deviation degrees from ideal states, facilitating the development of protection and restoration programs for grassland ecosystems.
资助项目	National Natural Science Foundation of China[41771460] ; National Key Research and Development Program of China[2017YFC0503803]
WOS关键词	ORGANIZING FEATURE MAP ; ECOLOGICAL PROTECTION ; DEGRADED GRASSLAND ; LAND DEGRADATION ; SERVICES ; RESTORATION ; CLASSIFICATION ; PROGRAM ; CLIMATE ; DESERTIFICATION
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
语种	英语
出版者	WILEY
WOS记录号	WOS:000569232700001
资助机构	National Natural Science Foundation of China ; National Key Research and Development Program of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/156891]
专题	中国科学院地理科学与资源研究所
通讯作者	Yang, Xiaohuan
作者单位	1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Lang, Yanqing,Yang, Xiaohuan,Cai, Hongyan. Assessing the degradation of grassland ecosystems based on the advanced local net production scaling method-The case of Inner Mongolia, China[J]. LAND DEGRADATION & DEVELOPMENT,2020:14.
APA	Lang, Yanqing,Yang, Xiaohuan,&Cai, Hongyan.(2020).Assessing the degradation of grassland ecosystems based on the advanced local net production scaling method-The case of Inner Mongolia, China.LAND DEGRADATION & DEVELOPMENT,14.
MLA	Lang, Yanqing,et al."Assessing the degradation of grassland ecosystems based on the advanced local net production scaling method-The case of Inner Mongolia, China".LAND DEGRADATION & DEVELOPMENT (2020):14.