干旱区生态环境知识资源中心(Arid): Understanding the Limiting Climatic Factors on the Suitable Habitat of Chinese Alfalfa

Arid

DOI	10.3390/f13030482
	Understanding the Limiting Climatic Factors on the Suitable Habitat of Chinese Alfalfa
	Zhang, Yanru; Liu, Guan; Lu, Qi; Xiong, Dongyang; Li, Guoqing; Du, Sheng
通讯作者	Li, GQ ; Du, S
来源期刊	FORESTS
EISSN	1999-4907
出版年	2022
卷号	13 期号:3
英文摘要	Chinese alfalfa (Medicago sativa) is one of the most widely planted species in China. It has considerable economic potential and plays an important role in soil and water conservation. In order to conduct scientific cultivation of Chinese alfalfa, we collected 100 occurrence records from herbarium and publications and 19 climatic variables from BIOCLIM to simulate potential suitable habitat and identified the key climatic factors of Chinese alfalfa by MaxEnt and GIS software. The result shows that the MaxEnt model performed well, with an average test AUC value of 0.86 with 10-fold cross validation. The potential distribution of Chinese alfalfa is mainly in arid and semi-arid areas of north and northwest China, about 15.2% (1.46 million km(2)) of China's total land area, and the highly suitable area is Loess Hilly region and Xinjiang. The main climatic factors affecting the distribution of this species is hydrological-related factors (PDM, PS, AP, PDQ and PCQ), which explained 58.6% of the variation, and the climatic factors limiting the southern, northern, northwestern and Tibetan plateau boundaries were PDM, AMT, AP and MTCM, respectively. The climatic thresholds of the core area of Chinese alfalfa are 0.0-14.0 mm of PDM, 23.8-108.2% of PS, 3.9-15.5 degrees C of AMT, 14.0-664.0 mm of AP, 1.0-47.0 mm of PDQ, 2.0-51.0 mm of PCQ. The results improve our understanding of limiting climatic factors for Chinese alfalfa and suggest a priority management measures for areas with corresponding limiting climatic factor.
英文关键词	MaxEnt limiting climatic factors suitable habitat Chinese alfalfa Medicago sativa
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:000775606700001
WOS关键词	MEDICAGO-SATIVA L. ; POTENTIAL DISTRIBUTION ; ELAEAGNUS-ANGUSTIFOLIA ; CULTIVATION ; IMPACTS
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/2XILL650/392610
推荐引用方式 GB/T 7714	Zhang, Yanru,Liu, Guan,Lu, Qi,et al. Understanding the Limiting Climatic Factors on the Suitable Habitat of Chinese Alfalfa[J],2022,13(3).
APA	Zhang, Yanru,Liu, Guan,Lu, Qi,Xiong, Dongyang,Li, Guoqing,&Du, Sheng.(2022).Understanding the Limiting Climatic Factors on the Suitable Habitat of Chinese Alfalfa.FORESTS,13(3).
MLA	Zhang, Yanru,et al."Understanding the Limiting Climatic Factors on the Suitable Habitat of Chinese Alfalfa".FORESTS 13.3(2022).