中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Soil carbon dioxide (co2) efflux of two shrubs in response to plant density in the northern loess plateau of china

文献类型:期刊论文

作者Fu, Wei1,2,3,4; Huang, Mingbin1,2,3; Ming An Shao1,2,3; Horton, Robert5
刊名African journal of biotechnology
出版日期2010-10-11
卷号9期号:41页码:6916-6926
关键词Plant density Semi-arid Shrub Soil co2 efflux
ISSN号1684-5315
通讯作者Huang, mingbin(hmingbin@yahoo.com)
英文摘要Although plant density should affect soil carbon dioxide (co2) efflux and carbon cycling in semi-arid regions, the effects of plant density on soil co2 efflux are not well known. this study was performed to investigate the responses of soil co2 efflux of two dominant shrubs (caragana korshinkii and salix psammophila) to plant density in the northern loess plateau of china. two plant density treatments, low and high, were included for c. korshinkii (average 20,000 plants ha(-1) and average 66,667 plants ha(-1)) and s. psammophila (average 9,583 plants ha(-1) and average 31,250 plants ha(-1)). soil co2 efflux was measured every other day with an ultra-light portable photosynthesis system (ci-340, cid inc., usa) from july to october 2009. soil co2 efflux with high plant density was significantly larger than that with low plant density for both shrub species. plant density did not change the temporal pattern of co2 efflux during the study period. our results indicated that root biomass and aboveground biomass were the significant biotic factors mediating the response of soil co2 efflux to plant density for the two shrubs. moreover, both soil water contents in the 0 - 6 cm soil layer and in deeper soil layer partly regulated the responses of soil co2 efflux to the shrub density treatments in the semi-arid region.
WOS关键词ECOSYSTEM RESPIRATION ; WATER-CONTENT ; TEMPORAL VARIATIONS ; CYCLE FEEDBACKS ; TEMPERATURE ; MOISTURE ; FOREST ; ROOT ; GRASSLAND ; PRECIPITATION
WOS研究方向Biotechnology & Applied Microbiology
WOS类目Biotechnology & Applied Microbiology
语种英语
WOS记录号WOS:000282986000014
出版者ACADEMIC JOURNALS
URI标识http://www.irgrid.ac.cn/handle/1471x/2406823
专题中国科学院大学
通讯作者Huang, Mingbin
作者单位1.Chinese Acad Sci, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China
2.Minist Water Resources, Yangling 712100, Shaanxi, Peoples R China
3.NW A&F Univ, Yangling 712100, Shaanxi, Peoples R China
4.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
5.Iowa State Univ, Ames, IA 50011 USA
推荐引用方式
GB/T 7714
Fu, Wei,Huang, Mingbin,Ming An Shao,et al. Soil carbon dioxide (co2) efflux of two shrubs in response to plant density in the northern loess plateau of china[J]. African journal of biotechnology,2010,9(41):6916-6926.
APA Fu, Wei,Huang, Mingbin,Ming An Shao,&Horton, Robert.(2010).Soil carbon dioxide (co2) efflux of two shrubs in response to plant density in the northern loess plateau of china.African journal of biotechnology,9(41),6916-6926.
MLA Fu, Wei,et al."Soil carbon dioxide (co2) efflux of two shrubs in response to plant density in the northern loess plateau of china".African journal of biotechnology 9.41(2010):6916-6926.

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来源:中国科学院大学

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