Knowledge Management System of Northwest Institute of Plateau Biology, CAS
| Temperature sensitivity of nutrient release from dung along elevation gradient on the Qinghai-Tibetan plateau | |
| Xu, Guangping1,2; Chao, Zengguo1,2; Wang, Shiping1,2; Hu, Yigang1,2; Zhang, Zhenghua1; Duan, Jichuang1,2; Chang, Xiaofeng1,2; Su, Ailing1,2; Luo, Caiyun1,2; Li, Yingnian1; Du, Mingyuan3 | |
| 2010-05-01 | |
| 发表期刊 | NUTRIENT CYCLING IN AGROECOSYSTEMS
 |
| ISSN | 1385-1314 |
| 卷号 | 87期号:1页码:49-57 |
| 文章类型 | Article |
| 摘要 | The temperature sensitivity of nutrient release from dung decomposition will influence ecosystem nutrient recycling in the future global warming. However, the relationship between temperature and nutrient release is not well understood. We conducted a 2-year-long study to understand the yak dung decomposition and its potential response to climate change along an elevation gradient from 3,200 to 4,200 m above sea level on an alpine meadow on the Qinghai-Tibetan plateau. Mass loss of different chemical components of dung [organic carbon (C), cellulose, hemicellulose, lignin, N, P, potassium (K), calcium (Ca) and magnesium (Mg)] significantly decreased with elevation. The ratios of C:N and N:P in the remaining dung increased significantly with decrease in elevation. The average temperature sensitivities (% A degrees C(-1)) (i.e., increase of the mass loss (%) per 1A degrees C temperature increase among elevations) were approximately 37, 75, 168, 41, 29, 37, 29, 34, and 31% per 1A degrees C warming within a 273-day decomposition period, which decreased with decomposition time, for organic C, cellulose, hemicellulose, lignin, N, P, K, Ca, and Mg, respectively. The temperature sensitivity of organic C mass loss is positively correlated to the C:N ratios in dung. The average temperature sensitivity of phosphorus mass loss was higher than that of nitrogen mass loss for the first 273 days and thereafter this situation was reversed.; The temperature sensitivity of nutrient release from dung decomposition will influence ecosystem nutrient recycling in the future global warming. However, the relationship between temperature and nutrient release is not well understood. We conducted a 2-year-long study to understand the yak dung decomposition and its potential response to climate change along an elevation gradient from 3,200 to 4,200 m above sea level on an alpine meadow on the Qinghai-Tibetan plateau. Mass loss of different chemical components of dung [organic carbon (C), cellulose, hemicellulose, lignin, N, P, potassium (K), calcium (Ca) and magnesium (Mg)] significantly decreased with elevation. The ratios of C:N and N:P in the remaining dung increased significantly with decrease in elevation. The average temperature sensitivities (% A degrees C(-1)) (i.e., increase of the mass loss (%) per 1A degrees C temperature increase among elevations) were approximately 37, 75, 168, 41, 29, 37, 29, 34, and 31% per 1A degrees C warming within a 273-day decomposition period, which decreased with decomposition time, for organic C, cellulose, hemicellulose, lignin, N, P, K, Ca, and Mg, respectively. The temperature sensitivity of organic C mass loss is positively correlated to the C:N ratios in dung. The average temperature sensitivity of phosphorus mass loss was higher than that of nitrogen mass loss for the first 273 days and thereafter this situation was reversed. |
| 关键词 | Temperature Sensitivity Nutrient Release Dung Decomposition Elevation Gradient Alpine Meadow |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 关键词[WOS] | LITTER DECOMPOSITION ; TROPICAL PASTURE ; SHEEP EXCREMENT ; INNER-MONGOLIA ; ARCTIC SOILS ; CLIMATE ; QUALITY ; MINERALIZATION ; RESPONSES ; NITROGEN |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS研究方向 | Agriculture |
| WOS类目 | Soil Science |
| WOS记录号 | WOS:000278120400005 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://210.75.249.4/handle/363003/1710 |
| 专题 | 中国科学院西北高原生物研究所 |
| 作者单位 | 1.Chinese Acad Sci, NW Inst Plateau Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining 810008, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Natl Inst Agroenvironm Sci, Tsukuba, Ibaraki 3058604, Japan |
| 推荐引用方式 GB/T 7714 | Xu, Guangping,Chao, Zengguo,Wang, Shiping,et al. Temperature sensitivity of nutrient release from dung along elevation gradient on the Qinghai-Tibetan plateau[J]. NUTRIENT CYCLING IN AGROECOSYSTEMS,2010,87(1):49-57. |
| APA | Xu, Guangping.,Chao, Zengguo.,Wang, Shiping.,Hu, Yigang.,Zhang, Zhenghua.,...&Du, Mingyuan.(2010).Temperature sensitivity of nutrient release from dung along elevation gradient on the Qinghai-Tibetan plateau.NUTRIENT CYCLING IN AGROECOSYSTEMS,87(1),49-57. |
| MLA | Xu, Guangping,et al."Temperature sensitivity of nutrient release from dung along elevation gradient on the Qinghai-Tibetan plateau".NUTRIENT CYCLING IN AGROECOSYSTEMS 87.1(2010):49-57. |
| 条目包含的文件 | 下载所有文件 | |||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| Temperature sensitiv（587KB） | 开放获取 | -- | 浏览 下载 | |||
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
修改评论