干旱区生态环境知识资源中心(Arid): Three-dimensional dynamic characteristics of vegetation and its response to climatic factors in the Qilian Mountains

Arid

DOI	10.1016/j.catena.2021.105694
	Three-dimensional dynamic characteristics of vegetation and its response to climatic factors in the Qilian Mountains
	Ma, Yunrui; Guan, Qingyu; Sun, Yunfan; Zhang, Jun; Yang, Liqin; Yang, Enqi; Li, Huichun; Du, Qinqin
通讯作者	Guan, QY (corresponding author), Lanzhou Univ, Coll Earth & Environm Sci, Gansu Key Lab Environm Pollut Predict & Control, Lanzhou 730000, Peoples R China.
来源期刊	CATENA
ISSN	0341-8162
EISSN	1872-6887
出版年	2022
卷号	208
英文摘要	Understanding the trend of vegetation change and its reaction to climate variation is important for revealing the mechanism of ecosystem behavior. However, current research rarely systematically analyzes the time effects of climate variation on vegetation dynamics (time-lag and time-accumulation effects), especially in arid and semiarid mountainous terrain. The typical mountainous terrain-the Qilian Mountains was taken as the study area, and the spatiotemporal changes and vertical zonality distributions of the normalized vegetation index (NDVI) were explored. This study explored the time-lag and time-accumulation effects of the NDVI response to climate factors (precipitation, temperature), identified the main controlling factors that influence the variation of NDVI. The results show that in the growing season from 2000 to 2019, the NDVI represented an overall upward trend, especially in the northwest, and the growth rate of NDVI at low-altitude was greater. The time-accumulation effect of precipitation has an obvious effect on vegetation, especially on deserta and meadow; and the timelag and time-accumulation effects of temperature have an obvious influence. Regarding the climate-vegetation response mechanism, this study finds that considering the optimal time effect is of great significance. In addition, compared with precipitation, the temperature has a more significant promotion effect on vegetation growth in the Qilian Mountains. The above results indicate that when the existing climate models study vegetationclimate interactions, considering the time effects of vegetation response to climate is of great significance for accurately monitoring vegetation dynamics under environmental changes.
英文关键词	Spatiotemporal changes Vertical distribution Time effects Driving factors
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000700576300001
WOS关键词	GLOBAL TERRESTRIAL ECOSYSTEMS ; QINGHAI-TIBETAN PLATEAU ; SNOW COVER ; TIME-LAG ; SPRING PHENOLOGY ; CARBON-DIOXIDE ; SOIL-MOISTURE ; ALPINE MEADOW ; LAND-SURFACE ; RIVER-BASIN
WOS类目	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS研究方向	Geology ; Agriculture ; Water Resources
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/362831
作者单位	[Ma, Yunrui; Guan, Qingyu; Sun, Yunfan; Zhang, Jun; Yang, Liqin; Yang, Enqi; Li, Huichun; Du, Qinqin] Lanzhou Univ, Coll Earth & Environm Sci, Gansu Key Lab Environm Pollut Predict & Control, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Ma, Yunrui,Guan, Qingyu,Sun, Yunfan,et al. Three-dimensional dynamic characteristics of vegetation and its response to climatic factors in the Qilian Mountains[J]. 兰州大学,2022,208.
APA	Ma, Yunrui.,Guan, Qingyu.,Sun, Yunfan.,Zhang, Jun.,Yang, Liqin.,...&Du, Qinqin.(2022).Three-dimensional dynamic characteristics of vegetation and its response to climatic factors in the Qilian Mountains.CATENA,208.
MLA	Ma, Yunrui,et al."Three-dimensional dynamic characteristics of vegetation and its response to climatic factors in the Qilian Mountains".CATENA 208(2022).