Soil temperature and biotic factors drive the seasonal variation of soil respiration in a maize (zea mays l.) agricultural ecosystem
文献类型：期刊论文
| 作者 | Han, Guangxuan; Zhou, Guangsheng; Xu, Zhenzhu; Yang, Yang; Liu, Jingli; Shi, Kuiqiao |
| 刊名 | Plant and soil
 |
| 出版日期 | 2007-02-01 |
| 卷号 | 291期号:1-2页码:15-26 |
| ISSN号 | 0032-079X |
| 关键词 | Biomass Net primary productivity Soil respiration Soil temperature Temporal variation |
| DOI | 10.1007/s11104-006-9170-8 |
| 通讯作者 | Zhou, guangsheng(gszhou@ibcas.ac.cn) |
| 英文摘要 | The diurnal and seasonal variation of soil respiration (sr) and their driving environmental factors were studied in a maize ecosystem during the growing season 2005. the diurnal variation of sr showed asymmetric patterns, with the minimum occurring around early morning and the maximum around 13:00 h. sr fluctuated greatly during the growing season. the mean sr rate was 3.16 mu mol co2 m(-2) s(-1), with a maximum of 4.87 mu mol co2 m(-2) s(-1) on july 28 and a minimum of 1.32 mu mol co2 m(-2) s(-1) on may 4. during the diurnal variation of sr, there was a significant exponential relationship between sr and soil temperature (t) at 10 cm depth: sr = alpha e(beta t). at a seasonal scale, the coefficient alpha and beta fluctuated because the biomass (b) increased alpha, and the net primary productivity (npp) of maize markedly increased beta of the exponential equation. based on this, we developed the equation sr = (ab + b)e((cnpp+d)t) to estimate the magnitude of sr and to simulate its temporal variation during the growth season of maize. most of the temporal variability (93%) in sr could be explained by the variations in soil temperature, biomass and npp of maize. this model clearly demonstrated that soil temperature, biomass and npp of maize combined to drive the seasonal variation of sr during the growing season. however, only taking into account the influence of soil temperature on sr, an exponential equation over- or underestimated the magnitude of sr and resulted in an erroneous representation of the seasonal variation in sr. our results highlighted the importance of biotic factors for the estimation of sr during the growing season. it is suggested that the models of sr on agricultural sites should not only take into account the influence of soil temperature, but also incorporate biotic factors as they affect sr during the growing season. |
| WOS关键词 | CO2 EFFLUX ; TEMPORAL VARIATION ; ROOT RESPIRATION ; SPRUCE FOREST ; WATER CONTENT ; CARBON ; PHOTOSYNTHESIS ; PLANTATION ; DEPENDENCE ; COMPONENTS |
| WOS研究方向 | Agriculture ; Plant Sciences |
| WOS类目 | Agronomy ; Plant Sciences ; Soil Science |
| 语种 | 英语 |
| 出版者 | SPRINGER |
| WOS记录号 | WOS:000245299700002 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2383490 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Zhou, Guangsheng |
| 作者单位 | 1.Chinese Acad Sci, Inst Bot, Lab Quantitat Vegetat Ecol, Beijing 100093, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 3.China Meteorol Adm, Inst Atmospher Environm, Shenyang 110016, Peoples R China 4.Meterol Bur Jinzhou, Jinzhou 121001, Peoples R China |
| 推荐引用方式 GB/T 7714 | Han, Guangxuan,Zhou, Guangsheng,Xu, Zhenzhu,et al. Soil temperature and biotic factors drive the seasonal variation of soil respiration in a maize (zea mays l.) agricultural ecosystem[J]. Plant and soil,2007,291(1-2):15-26. |
| APA | Han, Guangxuan,Zhou, Guangsheng,Xu, Zhenzhu,Yang, Yang,Liu, Jingli,&Shi, Kuiqiao.(2007).Soil temperature and biotic factors drive the seasonal variation of soil respiration in a maize (zea mays l.) agricultural ecosystem.Plant and soil,291(1-2),15-26. |
| MLA | Han, Guangxuan,et al."Soil temperature and biotic factors drive the seasonal variation of soil respiration in a maize (zea mays l.) agricultural ecosystem".Plant and soil 291.1-2(2007):15-26. |
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来源：中国科学院大学
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