Effects of livestock grazing on soil nitrogen mineralization on Hulunber meadow steppe, China
文献类型：期刊论文
| 作者 | Yan, R.; Yang, G.; Chen, B.; Wang, X.; Yan, Y.; Xin, X.; Li, L.; Zhu, X.; Bai, K.; Rong, Y. |
| 刊名 | PLANT SOIL AND ENVIRONMENT
 |
| 出版日期 | 2016 |
| 卷号 | 62期号:5 |
| ISSN号 | 1214-1178 |
| 关键词 | inorganic nitrogen terrestrial ecosystem climate grazing intensity nutrient cycling environmental factors |
| DOI | 10.17221/445/2015-PSE |
| 文献子类 | Article |
| 英文摘要 | Soil nitrogen (N) cycling is an important factor in terrestrial ecosystems, including grasslands. Understanding the effects of grazing on nitrogen cycling in grassland ecosystems is critical for better management and for improving knowledge of the mechanisms underlying grassland degradation and can provide basic information for sustainable development in grassland ecosystems. In this study, in situ incubation in intact soil cores was used to measure seasonal changes in soil nitrogen mineralization and nitrification in the meadow steppe of the Hulunber grasslands of northeastern China. Soil plots were subjected to varying intensities of cattle grazing, and soil characteristics including several aspects of the nitrogen cycle were analysed. The findings demonstrate that soil inorganic N pools and nitrogen mineralization peaked in August and that moderate grazing intensity produced higher seasonal mean net N mineralization (A(min)); net nitrogen mineralization rate (R-min); net ammonification rate (R-amm) and net nitrification rate (R-nit). Seasonal mean net mineralization rate was increased by 6-15% in the lightly and moderately grazed plots (0.34-0.46 AU cow/ha) and by 4-5% in the heavily grazed plots (0.69-0.92 AU cow/ha). Also it was found that soil moisture was significantly positively correlated with inorganic N, A(min), R-amm and R-min and significantly negatively correlated with R-nit, while soil temperature exhibited the opposite effect. The obtained results demonstrated net nitrogen mineralization and ammonium rates, which were strongly linked to grazing intensity, soil temperature and soil moisture. |
| 学科主题 | Agronomy |
| 电子版国际标准刊号 | 1805-9368 |
| 出版地 | PRAGUE |
| WOS关键词 | ECOSYSTEM PROCESSES ; N MINERALIZATION ; GRASSLAND ; NITRIFICATION ; TEMPERATURE ; INTENSITY |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| 语种 | 英语 |
| 出版者 | CZECH ACADEMY AGRICULTURAL SCIENCES |
| WOS记录号 | WOS:000377633900002 |
| 资助机构 | Central Public Welfare Scientific Research Institutes [402-11] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [41201199] ; National High-tech Research and Development ProjectsNational High Technology Research and Development Program of China [863, 2012AA102003-4] ; Chinese Ministry of AgricultureMinistry of Agriculture, China [CARS-35-11] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/24462]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Xin, X. 2.Hou, L.] China Agr Univ, Dept Grassland Sci, Beijing 100094, Peoples R China 3.Zhu, X. 4.[Rong, Y. 5.[Li, L.] Chinese Acad Sci, State Key Lab Vegetat & Environm Change, Inst Bot, Beijing, Peoples R China 6.Bai, K.] Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Beijing 100193, Peoples R China 7.[Yan, R. 8.Yang, G. 9.Chen, B. 10.Wang, X. |
| 推荐引用方式 GB/T 7714 | Yan, R.,Yang, G.,Chen, B.,et al. Effects of livestock grazing on soil nitrogen mineralization on Hulunber meadow steppe, China[J]. PLANT SOIL AND ENVIRONMENT,2016,62(5). |
| APA | Yan, R..,Yang, G..,Chen, B..,Wang, X..,Yan, Y..,...&Hou, L..(2016).Effects of livestock grazing on soil nitrogen mineralization on Hulunber meadow steppe, China.PLANT SOIL AND ENVIRONMENT,62(5). |
| MLA | Yan, R.,et al."Effects of livestock grazing on soil nitrogen mineralization on Hulunber meadow steppe, China".PLANT SOIL AND ENVIRONMENT 62.5(2016). |
入库方式： OAI收割
来源：植物研究所
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