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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