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  4. 中科院海岸带环境过程与生态修复重点实验室
Winter Soil Respiration from Different Vegetation Patches in the Yellow River Delta, China

文献类型：期刊论文

作者Han, Guangxuan1; Yu, Junbao1; Li, Huabing1; Yang, Liqiong1,2; Wang, Guangmei1; Mao, Peili1; Gao, Yongjun3
刊名ENVIRONMENTAL MANAGEMENT
出版日期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
ISSN号0364-152X
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
中文摘要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.
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.
学科主题Environmental Sciences
研究领域[WOS]Environmental Sciences & Ecology
关键词[WOS]ECOSYSTEM CO2 EXCHANGE ; SPATIAL VARIATION ; ORGANIC-CARBON ; TEMPORAL VARIATION ; TEMPERATE FORESTS ; MOUNTAIN FOREST ; WATER CONTENT ; EFFLUX ; DYNAMICS ; CLIMATE
收录类别SCI
资助信息National Science and Technology Support Program of China[2011BAC02B01]; Chinese Academy of Sciences[kzcx2-yw-223]; CAS/SAFEA
语种英语
WOS记录号WOS:000304623500005
公开日期2013-03-08
源URL[http://ir.yic.ac.cn/handle/133337/6081]  
专题烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
烟台海岸带研究所_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.

入库方式： OAI收割

来源：烟台海岸带研究所

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