Photosynthesis, transpiration and water use efficiency of four plant species with grazing intensities in hunshandak sandland, china
文献类型：期刊论文
| 作者 | Peng, Y.; Jiang, G. M.; Liu, X. H.; Niu, S. L.; Liu, M. Z.; Biswas, D. K. |
| 刊名 | Journal of arid environments
 |
| 出版日期 | 2007-07-01 |
| 卷号 | 70期号:2页码:304-315 |
| 关键词 | Grazing intensity Hunshandak sandland Photosynthetic rate Transpiration Water use efficiency |
| ISSN号 | 0140-1963 |
| DOI | 10.1016/j.jaridenv.2007.01.002 |
| 通讯作者 | Jiang, g. m.(jjanggm@126.com) |
| 英文摘要 | In order to explore the response patterns of gas exchange to the increased grazing intensity and to test whether or not plants have compensatory growth under animal grazing disturbance, we have conducted this experiment in hunshandak sandland of northern china. changes in net photosynthetic rate (pn), transpiration rate (e), and water use efficiency (wue) of four plant species (cleistogenes squarrosa, agropyron cristatuni, artemisia ftigida, potentilla acaulis) in four grazing intensities, non-, light-, moderate- and high-grazed plots were investigated. pn of all four species increased from non-grazed plots to moderate-grazed plots then decreased under high-grazed conditions. however, p. acaulis increased its pn from moderately grazed plots to high-grazed plots, suggesting a strong compensatory photosynthetic growth. transpirations of the four species elevated considerably with the increase of grazing intensity. except for artemisia frigida, wue of others increased significantly from non-grazed plots to moderately grazed plots then decreased in high-grazed plots. our results indicate that, while a sharp decrease in leaf areas and aboveground biomass, photosynthetic growth and wue were enhanced under moderate level of grazing. with a level of grazing increased, the plant functions were declined as a result. therefore, grassland in hunshandak sandland fails to support the present stocking rate. (c) 2007 elsevier ltd. all rights reserved. |
| WOS关键词 | INNER-MONGOLIA STEPPE ; NORTH-EASTERN CHINA ; GRASSLAND |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS类目 | Ecology ; Environmental Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000246661600009 |
| 出版者 | ACADEMIC PRESS LTD ELSEVIER SCIENCE LTD |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2379997 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Jiang, G. M. |
| 作者单位 | 1.Chinese Acad Sci, Inst Bot, Lab Quantitat Vegetat Ecol, Beijing 100093, Peoples R China 2.Tsing Hua Univ, Dept Environm Sci & Engn, Beijing 100084, Peoples R China 3.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Peng, Y.,Jiang, G. M.,Liu, X. H.,et al. Photosynthesis, transpiration and water use efficiency of four plant species with grazing intensities in hunshandak sandland, china[J]. Journal of arid environments,2007,70(2):304-315. |
| APA | Peng, Y.,Jiang, G. M.,Liu, X. H.,Niu, S. L.,Liu, M. Z.,&Biswas, D. K..(2007).Photosynthesis, transpiration and water use efficiency of four plant species with grazing intensities in hunshandak sandland, china.Journal of arid environments,70(2),304-315. |
| MLA | Peng, Y.,et al."Photosynthesis, transpiration and water use efficiency of four plant species with grazing intensities in hunshandak sandland, china".Journal of arid environments 70.2(2007):304-315. |
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来源：中国科学院大学
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