干旱区生态环境知识资源中心(Arid): Seasonal variation in soil temperature and moisture of a desert steppe environment: a case study from Xilamuren, Inner Mongolia

Arid

DOI	10.1007/s12665-021-09393-0
	Seasonal variation in soil temperature and moisture of a desert steppe environment: a case study from Xilamuren, Inner Mongolia
	Chang, Yaowen; Zhang, Ruiqiang; Hai, Chunxing; Zhang, Lixing
通讯作者	Zhang, RQ (corresponding author), Inst Water Resources Pastoral Areas, Hohhot 010020, Inner Mongolia, Peoples R China.
来源期刊	ENVIRONMENTAL EARTH SCIENCES
ISSN	1866-6280
EISSN	1866-6299
出版年	2021
卷号	80 期号:7
英文摘要	Soil temperature and moisture are important factors affecting vegetation growth and drought in desert steppe environments. These factors also strongly influence grassland ecosystems. This study interpreted long-term (2009-2019) ground observation data on soil temperature, soil moisture, and meteorological factors from a study area in Inner Mongolia. The monitoring station collected soil moisture, soil temperature, and precipitation data. Covarying relationships indicated how soil properties influence each other throughout the year. Soil temperature was clearly affected by atmospheric changes, solar radiation, and freeze/thaw processes. The surface soil layers showed the greatest degree of variation, while middle and lower layers showed less seasonal variation and smaller differences between daily highs and lows. Surface soil moisture correlates strongly with the vertical temperature decline in soil. Time series revealed major variation in soil moisture throughout the year with lower soil layers showing obvious hysteresis effects. Multi-year soil moisture data allowed for subdivision of the year into seven intervals based maximum and minimum values. Soil temperature showed unique patterns of covariation with soil moisture during different time periods. Differences in soil moisture cause more rapid changes in temperature during soil thawing relative the moisture-induced temperature changes observed 1 month after soil freezing. When soil temperature was greater than 0 degrees C (32 ?), soil temperature and soil moisture showed inverse correlation. A dependency of evapotranspiration on soil temperature can explain its effect on soil moisture. When soil temperature fell below 0 degrees C(32 ?), soil temperature and soil moisture showed a positive correlation. During an interval defined as the summer fluctuation (SF), precipitation and soil moisture showed a significant positive correlation. During other periods, soil moisture did not clearly covary with precipitation.
英文关键词	Desert steppe Seasonal variation Soil moisture Soil temperature Surface-atmosphere coupling system
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000636356500001
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/350107
作者单位	[Chang, Yaowen; Hai, Chunxing; Zhang, Lixing] Inner Mongolia Normal Univ, Coll Geog Sci, Hohhot 010022, Inner Mongolia, Peoples R China; [Chang, Yaowen; Zhang, Ruiqiang] Inst Water Resources Pastoral Areas, Hohhot 010020, Inner Mongolia, Peoples R China
推荐引用方式 GB/T 7714	Chang, Yaowen,Zhang, Ruiqiang,Hai, Chunxing,et al. Seasonal variation in soil temperature and moisture of a desert steppe environment: a case study from Xilamuren, Inner Mongolia[J],2021,80(7).
APA	Chang, Yaowen,Zhang, Ruiqiang,Hai, Chunxing,&Zhang, Lixing.(2021).Seasonal variation in soil temperature and moisture of a desert steppe environment: a case study from Xilamuren, Inner Mongolia.ENVIRONMENTAL EARTH SCIENCES,80(7).
MLA	Chang, Yaowen,et al."Seasonal variation in soil temperature and moisture of a desert steppe environment: a case study from Xilamuren, Inner Mongolia".ENVIRONMENTAL EARTH SCIENCES 80.7(2021).