Variation of botanical composition, forage production and nutrient values along a grassland degradation gradient in the alpine region of Qinghai-Tibet Plateau
文献类型：期刊论文
| 作者 | Wen, L.1; Dong, S. K.1; Li, Y. Y.1; Pulver, C.2; Li, X. Y.1; Shi, J. J.3; Wang, Y. L.3; Ma, Y. S.3; Liu, D. M.4 |
| 刊名 | phyton-international journal of experimental botany
 |
| 出版日期 | 2013 |
| 卷号 | 82页码:45-54 |
| 关键词 | Aboveground biomass Alpine grassland Degradation gradient Forage nutrient Qinghai-Tibet Plateau Vegetation composition |
| ISSN号 | 1851-5657 |
| 通讯作者 | dong, sk (reprint author), beijing normal univ, sch environm, 19 xinjiekouwai st, beijing 100875, peoples r china. |
| 中文摘要 | the alpine grassland in the qinghai-tibet plateau is an extensive rangeland ecosystem sustaining a sparse population of traditional nomadic pastoralists in china. however, global climate change and anthropologic disturbances have severely degraded the alpine grasslands, and the consequences of this degradation are largely unknown. forage is the only food source for livestock in the alpine region, and livestock is the major income source for nomadic herders. therefore, it is critical to assess the forage quantity and quality along the current grassland degradation gradient. in this study, we examined the botanical composition, biomass of different functional groups, and forage grass nutritive values, and classified forage grasses according to their biological condition: lightly degraded, moderately degraded, heavily degraded and severely degraded grasslands. a sharp reduction in vegetative production and variations in botanical composition, plant coverage and nutritive values were associated with increasing degrees of degradation of the alpine grassland. changes in botanical composition resulted in lower nutritive values in more than in less degraded alpine forage grasses. given the productive importance of the alpine grassland, urgent action is extremely essential to protect it from degradation. |
| 英文摘要 | the alpine grassland in the qinghai-tibet plateau is an extensive rangeland ecosystem sustaining a sparse population of traditional nomadic pastoralists in china. however, global climate change and anthropologic disturbances have severely degraded the alpine grasslands, and the consequences of this degradation are largely unknown. forage is the only food source for livestock in the alpine region, and livestock is the major income source for nomadic herders. therefore, it is critical to assess the forage quantity and quality along the current grassland degradation gradient. in this study, we examined the botanical composition, biomass of different functional groups, and forage grass nutritive values, and classified forage grasses according to their biological condition: lightly degraded, moderately degraded, heavily degraded and severely degraded grasslands. a sharp reduction in vegetative production and variations in botanical composition, plant coverage and nutritive values were associated with increasing degrees of degradation of the alpine grassland. changes in botanical composition resulted in lower nutritive values in more than in less degraded alpine forage grasses. given the productive importance of the alpine grassland, urgent action is extremely essential to protect it from degradation. |
| WOS标题词 | science & technology ; life sciences & biomedicine |
| 类目[WOS] | plant sciences |
| 研究领域[WOS] | plant sciences |
| 关键词[WOS] | nutritive-value ; perennial grasses ; land management ; legume-grass ; quality ; china ; carbon ; yield ; vegetation ; rangeland |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000331502800004 |
| 公开日期 | 2014-05-09 |
| 源URL | [http://ir.nwipb.ac.cn/handle/363003/3967]  |
| 专题 | 西北高原生物研究所_中国科学院西北高原生物研究所 |
| 作者单位 | 1.Beijing Normal Univ, State Key Lab Water Environm Simulat, Sch Environm, Beijing 100875, Peoples R China 2.Cornell Univ, Dept Crop & Soil Sci, Ithaca, NY 14853 USA 3.Qinghai Univ, Qinghai Acad Anim Sci & Vet Med, Xining 810003, Peoples R China 4.Chinese Acad Sci, Northwest Inst Plateau Biol, Xining 810008, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wen, L.,Dong, S. K.,Li, Y. Y.,et al. Variation of botanical composition, forage production and nutrient values along a grassland degradation gradient in the alpine region of Qinghai-Tibet Plateau[J]. phyton-international journal of experimental botany,2013,82:45-54. |
| APA | Wen, L..,Dong, S. K..,Li, Y. Y..,Pulver, C..,Li, X. Y..,...&Liu, D. M..(2013).Variation of botanical composition, forage production and nutrient values along a grassland degradation gradient in the alpine region of Qinghai-Tibet Plateau.phyton-international journal of experimental botany,82,45-54. |
| MLA | Wen, L.,et al."Variation of botanical composition, forage production and nutrient values along a grassland degradation gradient in the alpine region of Qinghai-Tibet Plateau".phyton-international journal of experimental botany 82(2013):45-54. |
入库方式： OAI收割
来源：西北高原生物研究所
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