干旱区生态环境知识资源中心(Arid): Soil respiration in typical plant communities in the wetland surrounding the high-salinity Ebinur Lake

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	Soil respiration in typical plant communities in the wetland surrounding the high-salinity Ebinur Lake
	Li Yanhong; Zhao Mingliang; Li Fadong
来源期刊	Frontiers of Earth Science
ISSN	2095-0195
出版年	2018
卷号	12 期号:3 页码:611-624
英文摘要	Soil respiration in wetlands surrounding lakes is a vital component of the soil carbon cycle in arid regions. However, information remains limited on the soil respiration around highly saline lakes during the plant growing season. Here, we aimed to evaluate diurnal and seasonal variation in soil respiration to elucidate the controlling factors in the wetland of Ebinur Lake, Xinjiang Uygur Autonomous Region, western China. We used a soil carbon flux automatic analyzer (LI-840A) to measure soil respiration rates during the growing season (April to November) in two fields covered by reeds and tamarisk and one field with no vegetation (bare soil) from 2015 to 2016. The results showed a single peak in the diurnal pattern of soil respiration from 11:00 to 17:00 for plots covered in reeds, tamarisk, and bare soil, with minimum values being detected from 03:00 to 07:00. During the growing season, the soil respiration of reeds and tamarisk peaked during the thriving period (4.16 and 3.75 mmol·m~(-2)·s~(-1), respectively), while that of bare soil peaked during the intermediate growth period (0.74 mmol·m~(-2)·s~(-1)). The soil respiration in all three plots was lowest during the wintering period (0.08, 0.09, and - 0.87 mmol·m~(-2)·s~(-1), respectively). Air temperature and relative humidity significantly influenced soil respiration. A significant linear relationship was detected between soil respiration and soil temperature for reeds, tamarisk, and bare soil. The average Q_(10) of reeds and tamarisk were larger than that of bare soil. However, soil moisture content was not the main factor controlling soil respiration. Soil respiration was negatively correlated with soil pH and soil salinity in all three plot types. In contrast, soil respiration was positively correlated with organic carbon. Overall, CO_2 emissions and greenhouse gases had a relatively weak effect on the wetlands surrounding the highly saline Ebinur Lake.
英文关键词	Ebinur Lake soil respiration high salinity soil temperature soil moisture
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	Science & Technology - Other Topics
CSCD记录号	CSCD:6326501
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335998
作者单位	Li Yanhong, Xinjiang Normal University, College of Geography and Tourism;;Key Laboratory of Xinjiang Uygur Autonomous Region;;Xinjiang Laboratory of Lake Environment and Resources in Arid Area, ;;Key Laboratory of Xinjiang Uygur Autonomous Region;;Xinjiang Laboratory of Lake Environment and Resources in Arid Area, Urumqi;;Urumqi, ;; 830054;;830054.; Zhao Mingliang, Xinjiang Normal University, College of Geography and Tourism;;Key Laboratory of Xinjiang Uygur Autonomous Region;;Xinjiang Laboratory of Lake Environment and Resources in Arid Area, ;;Key Laboratory of Xinjiang Uygur Autonomous Region;;Xinjiang Laboratory of Lake Environment and Resources in Arid Area, Urumqi;;Urumqi, ;; 830054;;830054.; Li Fadong, Xinjiang Normal University, College of Geography and Tourism;;Key Laboratory of Xinjiang Uygur Autonomous Region;;Xinjiang Laboratory of Lake Environment and Resources in Arid Area;;Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences;;College of Resources an...
推荐引用方式 GB/T 7714	Li Yanhong,Zhao Mingliang,Li Fadong. Soil respiration in typical plant communities in the wetland surrounding the high-salinity Ebinur Lake[J],2018,12(3):611-624.
APA	Li Yanhong,Zhao Mingliang,&Li Fadong.(2018).Soil respiration in typical plant communities in the wetland surrounding the high-salinity Ebinur Lake.Frontiers of Earth Science,12(3),611-624.
MLA	Li Yanhong,et al."Soil respiration in typical plant communities in the wetland surrounding the high-salinity Ebinur Lake".Frontiers of Earth Science 12.3(2018):611-624.