Institutional Repository of Key Laboratory of Coastal Zone Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences (KLCEP)
| Winter Soil Respiration from Different Vegetation Patches in the Yellow River Delta, China | |
Han, Guangxuan1 ; Yu, Junbao1; Li, Huabing1; Yang, Liqiong1,2; Wang, Guangmei1; Mao, Peili1; Gao, Yongjun3
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| 发表期刊 | ENVIRONMENTAL MANAGEMENT
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| ISSN | 0364-152X |
| 2012-07-01 | |
| 卷号 | 50期号:1页码:39-49 |
| 关键词 | Soil Respiration Winter Vegetation Patches Spatial And Temporal Variation Yellow River Delta |
| 产权排序 | [Han, Guangxuan; Yu, Junbao; Li, Huabing; Yang, Liqiong; Wang, Guangmei; Mao, Peili] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc, Yantai 264003, Shandong, Peoples R China; [Yang, Liqiong] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China; [Gao, Yongjun] Univ Houston, Dept Earth & Atmospher Sci, Houston, TX 77204 USA |
| 通讯作者 | Yu, JB (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc, Chunhui Rd 17, Yantai 264003, Shandong, Peoples R China.,gxhan@yic.ac.cn |
| 作者部门 | 中科院海岸带环境过程与生态修复重点实验室 |
| 英文摘要 | Vegetation type and density exhibited a considerable patchy distribution at very local scales in the Yellow River Delta, due to the spatial variation of soil salinity and water scarcity. We proposed that soil respiration is affected by the spatial variations in vegetation type and soil chemical properties and tested this hypothesis in three different vegetation patches (Phragmites australis, Suaeda heteroptera and bare soil) in winter (from November 2010 to April 2011). At diurnal scale, soil respiration all displayed single-peak curves and asymmetric patterns in the three vegetation patches; At seasonal scale, soil respiration all declined steadily until February, and then increased to a peak in next April. But, the magnitude of soil respiration showed significant differences among the three sites. Mean soil respiration rates in winter were 0.60, 0.45 and 0.17 mu mol CO2 m(-2) s(-1) for the Phragmites australis, Suaeda heteroptera and bare soil, respectively. The combined effect of soil temperature and soil moisture accounted for 58-68 % of the seasonal variation of winter soil respiration. The mean soil respiration revealed positive and linear correlations with total N, total N and SOC storages at 0-20 cm depth, and plant biomass among the three sites. We conclude that the patchy distribution of plant biomass and soil chemical properties (total C, total N and SOC) may affect decomposition rate of soil organic matter in winter, thereby leading to spatial variations in soil respiration.; Vegetation type and density exhibited a considerable patchy distribution at very local scales in the Yellow River Delta, due to the spatial variation of soil salinity and water scarcity. We proposed that soil respiration is affected by the spatial variations in vegetation type and soil chemical properties and tested this hypothesis in three different vegetation patches (Phragmites australis, Suaeda heteroptera and bare soil) in winter (from November 2010 to April 2011). At diurnal scale, soil respiration all displayed single-peak curves and asymmetric patterns in the three vegetation patches; At seasonal scale, soil respiration all declined steadily until February, and then increased to a peak in next April. But, the magnitude of soil respiration showed significant differences among the three sites. Mean soil respiration rates in winter were 0.60, 0.45 and 0.17 mu mol CO2 m(-2) s(-1) for the Phragmites australis, Suaeda heteroptera and bare soil, respectively. The combined effect of soil temperature and soil moisture accounted for 58-68 % of the seasonal variation of winter soil respiration. The mean soil respiration revealed positive and linear correlations with total N, total N and SOC storages at 0-20 cm depth, and plant biomass among the three sites. We conclude that the patchy distribution of plant biomass and soil chemical properties (total C, total N and SOC) may affect decomposition rate of soil organic matter in winter, thereby leading to spatial variations in soil respiration. |
| 文章类型 | Article |
| 资助机构 | National Science and Technology Support Program of China[2011BAC02B01]; Chinese Academy of Sciences[kzcx2-yw-223]; CAS/SAFEA |
| 收录类别 | SCI |
| 语种 | 英语 |
| 关键词[WOS] | ECOSYSTEM CO2 EXCHANGE ; SPATIAL VARIATION ; ORGANIC-CARBON ; TEMPORAL VARIATION ; TEMPERATE FORESTS ; MOUNTAIN FOREST ; WATER CONTENT ; EFFLUX ; DYNAMICS ; CLIMATE |
| 研究领域[WOS] | Environmental Sciences & Ecology |
| WOS记录号 | WOS:000304623500005 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/6080 |
| 专题 | 中国科学院海岸带环境过程与生态修复重点实验室 中国科学院海岸带环境过程与生态修复重点实验室_滨海湿地实验室 |
| 作者单位 | 1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc, Yantai 264003, Shandong, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Univ Houston, Dept Earth & Atmospher Sci, Houston, TX 77204 USA |
| 推荐引用方式 GB/T 7714 | Han, Guangxuan,Yu, Junbao,Li, Huabing,et al. Winter Soil Respiration from Different Vegetation Patches in the Yellow River Delta, China[J]. ENVIRONMENTAL MANAGEMENT,2012,50(1):39-49. |
| APA | Han, Guangxuan.,Yu, Junbao.,Li, Huabing.,Yang, Liqiong.,Wang, Guangmei.,...&Gao, Yongjun.(2012).Winter Soil Respiration from Different Vegetation Patches in the Yellow River Delta, China.ENVIRONMENTAL MANAGEMENT,50(1),39-49. |
| MLA | Han, Guangxuan,et al."Winter Soil Respiration from Different Vegetation Patches in the Yellow River Delta, China".ENVIRONMENTAL MANAGEMENT 50.1(2012):39-49. |
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