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; Zhang, Shubin
发表期刊PLANT AND SOIL
ISSN0032-079X
2018-07
卷号428期号:1-2页码:321-333
关键词Drought Savanna Soil respiration Precipitation exclusion Climate change
研究领域Agriculture ; Plant Sciences
DOI10.1007/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
作者部门中国科学院黄河三角洲滨海湿地试验站
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.
文章类型Article
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
收录类别SCI
语种英语
关键词[WOS]AMAZONIAN RAIN-FOREST ; MOIST TROPICAL FOREST ; CARBON-DIOXIDE ; NITROUS-OXIDE ; CO2 EFFLUX ; NORTHERN AUSTRALIA ; HETEROTROPHIC RESPIRATION ; INTERANNUAL VARIABILITY ; PRECIPITATION PULSES ; TEMPORAL VARIATION
研究领域[WOS]Agronomy ; Plant Sciences ; Soil Science
WOS记录号WOS:000436129500021
引用统计
被引频次:13[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cn/handle/133337/24445
专题支撑部门_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.Univ Chinese Acad Sci, Beijing 100039, Peoples R China;
3.Univ Edinburgh, Sch GeoSci, Edinburgh EH9 3EF, Midlothian, Scotland;
4.Chinese Acad Sci, Yuanjiang Savanna Ecosyst Res Stn, Xishuangbanna Trop Bot Garden, Yuanjiang 653300, Yunnan, Peoples R China;
5.Chinese Acad Sci, Yellow River Delta Ecol Res Stn Coastal Wetland, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China
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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.
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