干旱区生态环境知识资源中心(Arid): Detecting the response characteristics and thresholds of grassland spring phenology to climatic factors in the Mongolian Plateau

Arid

DOI	10.1016/j.ecolind.2023.110440
	Detecting the response characteristics and thresholds of grassland spring phenology to climatic factors in the Mongolian Plateau
	Wang, Meiyu; Zhao, Jianjun; Zhang, Hongyan; Zhang, Zhengxiang; Guo, Xiaoyi; Zhang, Tingting; Wu, Rihan
通讯作者	Zhao, JN ; Zhang, HY
来源期刊	ECOLOGICAL INDICATORS
ISSN	1470-160X
EISSN	1872-7034
出版年	2023
卷号	153
英文摘要	Understanding the response characteristics and thresholds of grassland spring phenology (GSP) to different climatic factors in arid and semi-arid regions is of great significance to deal with global climate change. The Mongolian Plateau is one of the largest plateaus located in arid and semi-arid regions of eastern Asia, extremely sensitive to climate change. At present, the response characteristics and thresholds of the grassland spring phenology to climate factors in the Mongolian Plateau remain uncertain. Here, we used statistical analysis, random forest and geographical detector to explore these uncertainty. We found that 1) 76.67% of study area showed a significant advancing trend. GSP has significantly advanced by-0.656 days/decade (P < 0.05) over the past three decades. 2) The vapor pressure (VAP) shows a more important impact on the GSP than other climate factors both in strength and range. Especially when the VAP value was between 2 and 5 hPa, the GSP advanced as the VAP increased. The near-surface temperature minimum (TMN), near-surface temperature (TMP), near-surface temperature maximum (TMX) and diurnal temperature range (DTR) have the greatest impact on the GSP in June, and the six-month cumulative effects of precipitation (PRE), wet day frequency (WET) and cloud cover (CLD) are greater than those in a single month. The interaction between VAP and PRE could largely explain GSP changes (69.35%). 3) The GSP have different response threshold to climate factors. The GSP advances as the temperature increases when TMP < 0 degrees C, DTR 14 degrees C, TMX 10 degrees C and TMN >-5 degrees C, and it delays as the FRS, WET and CLD increase. This study is of great significance to reveal the impact characteristics and threshold of climate change on the GSP, which could do help in understanding climate change.
英文关键词	Remote sensing Grassland spring phenology Climate change Mongolian Plateau
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:001052783700001
WOS关键词	NET PRIMARY PRODUCTIVITY ; VEGETATION FEEDBACKS ; TIBETAN PLATEAU ; ECOSYSTEMS ; DYNAMICS ; PLANT ; IMPACTS ; TEMPERATURE ; VARIABILITY ; GROWTH
WOS类目	Biodiversity Conservation ; Environmental Sciences
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/395941
推荐引用方式 GB/T 7714	Wang, Meiyu,Zhao, Jianjun,Zhang, Hongyan,et al. Detecting the response characteristics and thresholds of grassland spring phenology to climatic factors in the Mongolian Plateau[J],2023,153.
APA	Wang, Meiyu.,Zhao, Jianjun.,Zhang, Hongyan.,Zhang, Zhengxiang.,Guo, Xiaoyi.,...&Wu, Rihan.(2023).Detecting the response characteristics and thresholds of grassland spring phenology to climatic factors in the Mongolian Plateau.ECOLOGICAL INDICATORS,153.
MLA	Wang, Meiyu,et al."Detecting the response characteristics and thresholds of grassland spring phenology to climatic factors in the Mongolian Plateau".ECOLOGICAL INDICATORS 153(2023).