干旱区生态环境知识资源中心(Arid): Time-Lagged Correlation between Soil Moisture and Intra-Annual Dynamics of Vegetation on the Mongolian Plateau

Arid

DOI	10.3390/rs13081527
	Time-Lagged Correlation between Soil Moisture and Intra-Annual Dynamics of Vegetation on the Mongolian Plateau
	Na, Li; Na, Risu; Bao, Yongbin; Zhang, Jiquan
通讯作者	Zhang, JQ (corresponding author), Northeast Normal Univ, Sch Environm, Changchun 130024, Peoples R China. ; Zhang, JQ (corresponding author), Minist Educ, Key Lab Vegetat Ecol, Changchun 130024, Peoples R China.
来源期刊	REMOTE SENSING
EISSN	2072-4292
出版年	2021
卷号	13 期号:8
英文摘要	Soil moisture is a reliable water resource for plant growth in arid and semi-arid regions. Characterizing the interaction between soil moisture and vegetation is important for assessing the sustainability of terrestrial ecosystems. This study explores the spatiotemporal characteristics of four soil moisture layers (layer 1: 0-7 cm, layer 2: 7-28 cm, layer 3: 28-100 cm, and layer 4: 100-289 cm) and the time-lagged correlation with the normalized difference vegetation index (NDVI) for different vegetation types on an intra-annual scale on the Mongolian Plateau (MP). The most significant results indicated that: (1) the four layers of soil moisture can be roughly divided into rapid change (layers 1 and 2), active (layer 3), and stable (layer 4) layers. The soil moisture content in the different vegetation regions was forest > grassland > desert vegetation. (2) The soil moisture in layer 1 showed the strongest positive correlation with NDVI in the whole area; meanwhile, the soil moisture of layers 2 and 3 showed the strongest negative correlation with the NDVI mainly in grassland and desert, and layer 4 showed the strongest negative correlation with the NDVI in the forest. (3) Mutual responses of NDVI and deep layer soil moisture required a longer time compared with the shallow layer. In the annual time scale, the NDVI was affected by the change in soil moisture in most of the study area, except for coniferous forest and desert vegetation regions. (4) Under the different stages of vegetation change, the soil moisture changes advance than NDVI about 3 months during the greening stage, while the NDVI changes advance than soil moisture by 0.5 months during the browning stage. Regardless of the stage, changes in soil moisture are initiated from the shallow layer and advance to the deep layer. The results of this study provide deep insight into the relationship between soil moisture and vegetation in arid and semi-arid regions.
英文关键词	soil moisture different vegetation types arid and semiarid regions phenology period
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:000644673300001
WOS关键词	NET PRIMARY PRODUCTIVITY ; LOESS PLATEAU ; TERRESTRIAL ECOSYSTEMS ; INNER-MONGOLIA ; HYDRAULIC LIFT ; WATER-UPTAKE ; CLIMATE ; PHENOLOGY ; CHINA ; NDVI
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/351512
作者单位	[Na, Li; Bao, Yongbin; Zhang, Jiquan] Northeast Normal Univ, Sch Environm, Changchun 130024, Peoples R China; [Na, Li; Zhang, Jiquan] Minist Educ, Key Lab Vegetat Ecol, Changchun 130024, Peoples R China; [Na, Risu] Northeast Normal Univ, Sch Geog Sci, Changchun 130024, Peoples R China
推荐引用方式 GB/T 7714	Na, Li,Na, Risu,Bao, Yongbin,et al. Time-Lagged Correlation between Soil Moisture and Intra-Annual Dynamics of Vegetation on the Mongolian Plateau[J],2021,13(8).
APA	Na, Li,Na, Risu,Bao, Yongbin,&Zhang, Jiquan.(2021).Time-Lagged Correlation between Soil Moisture and Intra-Annual Dynamics of Vegetation on the Mongolian Plateau.REMOTE SENSING,13(8).
MLA	Na, Li,et al."Time-Lagged Correlation between Soil Moisture and Intra-Annual Dynamics of Vegetation on the Mongolian Plateau".REMOTE SENSING 13.8(2021).