SHEEP GRAZING STIMULATED PLANT AVAILABLE SOIL NITRATE ACCUMULATION IN A TEMPERATE GRASSLAND

	SHEEP GRAZING STIMULATED PLANT AVAILABLE SOIL NITRATE ACCUMULATION IN A TEMPERATE GRASSLAND
	Feng, Jinchao 1,2; Han, Xu 3; He, Nianpeng 4; Zhang, Yunhai 2; Zhou, Lishi 2; Han, Xingguo 2,5
刊名	PAKISTAN JOURNAL OF BOTANY
	2015-10-01
卷号	47 期号:5 页码:1865-1874
关键词	Grassland n Availability n Cycle Sheep Soil Moisture Stocking Rate
ISSN号	0556-3321
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.
WOS研究方向	Plant Sciences
语种	英语
出版者	PAKISTAN BOTANICAL SOC
WOS记录号	WOS:000364339500034
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/122263]
专题	中国科学院沈阳应用生态研究所
通讯作者	Zhang, Yunhai
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 3.Shandong Agr Univ, Coll Forestry, Tai An 271018, Shandong, Peoples R China 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 5.Chinese Acad Sci, Inst Appl Ecol, State Key Lab Forest & Soil Ecol, Shenyang 110016, 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.