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SHEEP GRAZING STIMULATED PLANT AVAILABLE SOIL NITRATE ACCUMULATION IN A TEMPERATE GRASSLAND | |
Feng, Jinchao4; Han, Xu1; He, Nianpeng2; Zhang, Yunhai; Zhou, Lishi; Han, Xingguo3 | |
2015 | |
发表期刊 | PAKISTAN JOURNAL OF BOTANY |
ISSN | 0556-3321 |
卷号 | 47期号:5页码:1865-1874 |
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. |
关键词 | Grassland N availability N cycle Sheep Soil moisture Stocking rate |
学科领域 | Plant Sciences |
收录类别 | SCI |
语种 | 英语 |
WOS关键词 | NITROGEN MINERALIZATION ; INNER-MONGOLIA ; SEMIARID GRASSLAND ; MICROBIAL BIOMASS ; N MINERALIZATION ; SPECIES LOSS ; INTENSITY ; STEPPE ; IMPACTS ; CARBON |
WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
WOS记录号 | WOS:000364339500034 |
出版者 | PAKISTAN BOTANICAL SOC |
文献子类 | Article |
出版地 | KARACHI |
EISSN | 2070-3368 |
资助机构 | National Natural Science Foundation of China [31300384] ; China Postdoctoral Science Foundation [2014M560134] |
作者邮箱 | zhangyh670@ibcas.ac.cn ; xghan@ibcas.ac.cn |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ibcas.ac.cn/handle/2S10CLM1/25679 |
专题 | 植被与环境变化国家重点实验室 |
作者单位 | 1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 2.Shandong Agr Univ, Coll Forestry, Tai An 271018, Shandong, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 4.Chinese Acad Sci, Inst Appl Ecol, State Key Lab Forest & Soil Ecol, Shenyang 110016, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Feng, Jinchao,Han, Xu,He, Nianpeng,et al. SHEEP GRAZING STIMULATED PLANT AVAILABLE SOIL NITRATE ACCUMULATION IN A TEMPERATE GRASSLAND[J]. PAKISTAN JOURNAL OF BOTANY,2015,47(5):1865-1874. |
APA | Feng, Jinchao,Han, Xu,He, Nianpeng,Zhang, Yunhai,Zhou, Lishi,&Han, Xingguo.(2015).SHEEP GRAZING STIMULATED PLANT AVAILABLE SOIL NITRATE ACCUMULATION IN A TEMPERATE GRASSLAND.PAKISTAN JOURNAL OF BOTANY,47(5),1865-1874. |
MLA | Feng, Jinchao,et al."SHEEP GRAZING STIMULATED PLANT AVAILABLE SOIL NITRATE ACCUMULATION IN A TEMPERATE GRASSLAND".PAKISTAN JOURNAL OF BOTANY 47.5(2015):1865-1874. |
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