The influence of drought strength on soil respiration in a woody savanna ecosystem, southwest China

doi:10.1007/s11104-018-3678-6

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 中国科学院黄河三角洲滨海湿地试验站

	The influence of drought strength on soil respiration in a woody savanna ecosystem, southwest China
	Liu, Yuntong ; Li, Jing ; Jin, Yanqiang ; Zhang, Yiping ; Sha, Liqing ; Grace, John ; Song, Qinghai ; Zhou, Wenjun ; Chen, Aiguo ; Li, Peiguang
刊名	PLANT AND SOIL
	2018-07
卷号	428 期号:1-2 页码:321-333
关键词	Drought Savanna Soil respiration Precipitation exclusion Climate change
ISSN号	0032-079X
DOI	10.1007/s11104-018-3678-6
产权排序	[Liu, Yuntong ; Li, Jing ; Jin, Yanqiang ; Zhang, Yiping ; Sha, Liqing ; Song, Qinghai ; Zhou, Wenjun ; Chen, Aiguo ; Zhang, Shubin] Chinese Acad Sci, Key Lab Trop Forest Ecol, Xishuangbanna Trop Bot Garden, Mengla 666303, Yunnan, Peoples R China ; [Li, Jing ; Jin, Yanqiang] Univ Chinese Acad Sci, Beijing 100039, Peoples R China ; [Grace, John] Univ Edinburgh, Sch GeoSci, Edinburgh EH9 3EF, Midlothian, Scotland ; [Chen, Aiguo ; Zhang, Shubin] Chinese Acad Sci, Yuanjiang Savanna Ecosyst Res Stn, Xishuangbanna Trop Bot Garden, Yuanjiang 653300, Yunnan, Peoples R China ; [Li, Peiguang] Chinese Acad Sci, Yellow River Delta Ecol Res Stn Coastal Wetland, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China
文献子类	Article
英文摘要	Drought is expected to be more frequent and more intense with global warming. Our aim was to investigate how soil respiration would respond to different levels of precipitation exclusion ('drought strength'). We conducted a two-year drought experiment in a woody savanna ecosystem in south west of China, which consisted of four treatments: a control treatment (CK); 30% precipitation exclusion (PE3), 50% precipitation exclusion (PE5) and 70% precipitation exclusion (PE7). The cumulative soil respiration rates were significantly decreased in both rainy and dry seasons as drought became more intense. The sensitivity of soil respiration to soil moisture decreased as drought severity increased. There were bursts of CO2 emission when dry soils were rewetted by rainfall after the dry season. Unlike most other exponential relationships between soil respiration and soil temperature, a parabolic function was observed in all treatments (P < 0.05), which was due to higher soil temperature (> 28 A degrees C) coinciding with insufficient soil water content (< 11% Vol). Respiration rate is best represented by a model which combines soil moisture and temperature. Soil respiration rates were significantly decreased as drought enhanced. The response of soil respiration to drought in the dry season should not be ignored especially when evaluating the effect of drought on soil respiration in a whole year in savanna ecosystems. The quadratic relationship between soil respiration and soil temperature may be important for modeling the response of soil respiration to climate change (drought) in savanna ecosystems.
WOS关键词	AMAZONIAN RAIN-FOREST ; MOIST TROPICAL FOREST ; CARBON-DIOXIDE ; NITROUS-OXIDE ; CO2 EFFLUX ; NORTHERN AUSTRALIA ; HETEROTROPHIC RESPIRATION ; INTERANNUAL VARIABILITY ; PRECIPITATION PULSES ; TEMPORAL VARIATION
WOS研究方向	Agronomy ; Plant Sciences ; Soil Science
语种	英语
WOS记录号	WOS:000436129500021
资助机构	National Natural Science Foundation of China [41405143, 31290220, 31600390] ; Yunnan Province Natural Science Foundation [2015FB186, 2017FB077] ; Joint Foundation of the National Natural Science Foundation of China ; Natural Science Foundation of Yunnan Province [U1602234, U1202234] ; National Key Research and Development Program of China [2016YFC0502105] ; CAS 135 project [2017XTBG-F01, 2017XTBG-T01] ; Yuanjiang Savanna Ecosystem Research Station of Xishuangbanna Tropical Botanical Garden of CAS ; Public Technology Service Center of Xishuangbanna Tropical Botanical Garden of CAS
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/24445]
专题	中国科学院黄河三角洲滨海湿地试验站
作者单位	1.Chinese Acad Sci, Key Lab Trop Forest Ecol, Xishuangbanna Trop Bot Garden, Mengla 666303, Yunnan, Peoples R China; 2.Chinese Acad Sci, Yellow River Delta Ecol Res Stn Coastal Wetland, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China 3.Chinese Acad Sci, Yuanjiang Savanna Ecosyst Res Stn, Xishuangbanna Trop Bot Garden, Yuanjiang 653300, Yunnan, Peoples R China; 4.Univ Edinburgh, Sch GeoSci, Edinburgh EH9 3EF, Midlothian, Scotland; 5.Univ Chinese Acad Sci, Beijing 100039, Peoples R China;
推荐引用方式 GB/T 7714	Liu, Yuntong,Li, Jing,Jin, Yanqiang,et al. The influence of drought strength on soil respiration in a woody savanna ecosystem, southwest China[J]. PLANT AND SOIL,2018,428(1-2):321-333.
APA	Liu, Yuntong.,Li, Jing.,Jin, Yanqiang.,Zhang, Yiping.,Sha, Liqing.,...&Zhang, Shubin.(2018).The influence of drought strength on soil respiration in a woody savanna ecosystem, southwest China.PLANT AND SOIL,428(1-2),321-333.
MLA	Liu, Yuntong,et al."The influence of drought strength on soil respiration in a woody savanna ecosystem, southwest China".PLANT AND SOIL 428.1-2(2018):321-333.