SHEEP GRAZING STIMULATED PLANT AVAILABLE SOIL NITRATE ACCUMULATION IN A TEMPERATE GRASSLAND
文献类型：SCI/SSCI论文
| 作者 | Feng J. C.; Han, X.; He, N. P.; Zhang, Y. H.; Zhou, L. S.; Han, X. G. |
| 发表日期 | 2015 |
| 关键词 | Grassland N availability N cycle Sheep Soil moisture Stocking rate inner-mongolia nitrogen mineralization semiarid grassland microbial biomass northern china n mineralization species loss steppe ecosystem intensity |
| 英文摘要 | We investigated the effects of increasing grazing I ntensities on N availability (inorganic N, In-N, for plant and microbial growth, e.g., NO3--N, NH4+-N) and variability in soils of 0-10 cm depth during 2009-2010, within a framework of a long-term grazing study. The results showed that the relationship for grazing intensity with respect to soil NO3--N (R-2 = 0.988, P = 0.006) was well depicted by curvilinear equations. Moreover, soil NO3--N, NH4+-N and inorganic N varied significantly with sample date, year, and soil water content (SWC, %). There were also significant correlation between date and grazing intensities on soil NO3--N, NH4+-N and In-N. SWC and temperature had more impact on soil available N than grazing, especially with respect to the seasonal dynamics of the soil N pool. Grazing intensity, in combination with SWC (precipitation) and temperature, controlled soil N availability and, therefore, affect the N cycles and plant growth within semiarid grasslands. |
| 出处 | Pakistan Journal of Botany |
| 卷 | 47 |
| 期 | 5 |
| 页 | 1865-1874 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 0556-3321 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/38432]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Feng J. C.,Han, X.,He, N. P.,et al. SHEEP GRAZING STIMULATED PLANT AVAILABLE SOIL NITRATE ACCUMULATION IN A TEMPERATE GRASSLAND. 2015. |
入库方式： OAI收割
来源：地理科学与资源研究所
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