| 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
 |
| ISSN | 0032-079X |
| 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 |
| 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 |
| 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 | |
| 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 |
| 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. |
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