干旱区生态环境知识资源中心(Arid): 放牧率对短花针茅根际和非根际土壤氮素的影响

Arid

	放牧率对短花针茅根际和非根际土壤氮素的影响
其他题名	Effects of grazing on nitrogen contents in rhizosphere and non-rhizosphere soil of Stipa breviflora
	杜宇凡 1; 古琛 1; 王亚婷 1; 赵天启 1; 陈万杰 1; 乌力吉 1; 安海波 1; 李志国 1; 王成海 2; 赵萌莉 1
来源期刊	草业科学
ISSN	1001-0629
出版年	2016
卷号	33 期号:6 页码:1021-1027
中文摘要	以短花针茅(Stipa breviflora)荒漠草原为研究对象,研究不同放牧强度下,短花针茅根际与非根际土壤氮素的变化。结果表明,不同处理间短花针茅根际的土壤氮素含量均高于非根际的。在相同放牧率下,随着土层深度增加根际与非根际土壤全氮、铵态氮、硝态氮含量都表现出降低的趋势;不同放牧率,0 10、20 30cm 土层,根际土壤全氮含量总体变化趋势与非根际变化趋势相同;相同土层深度,轻度放牧区短花针茅根际土壤氨态氮与硝态氮含量明显升高,证明适度放牧对土壤氮素积累有积极作用。垂直方向上,不同放牧率下,010 cm 土层的全氮含量高于20 30 cm 土层的。
英文摘要	The present study focused on the difference between rhizosphere and non-rhizosphere soil nitrogen in the Stipa breviflora desert steppe in Inner Mongolia. The results showed that soil nitrogen contents in rhizosphere were always higher than those in non-rhizosphere in S. breviflora under every treatment. With the increase of soil depth, the contents of total nitrogen, ammonium nitrogen and nitrate nitrogen in both rhizosphere and non-rhizosphere soil decreased. For 010 and 20 30 cm soil depth under different grazing rates, total nitrogen contents in rhizosphere soil and non-rhizosphere soil had similar change. The ammonium nitrogen and nitrate nitrogen contents increased in rhizosphere soil of same depth with light grazing rate which suggested that optimal grazing was positive for nitrogen accumulation. In vertical direction under different grazing rate, the total nitrogen contents in soil 010 cm was higher than those in 20-30 cm soil.
中文关键词	根际与非根际 ; 短花针茅 ; 铵态氮 ; 硝态氮 ; 全氮
英文关键词	rhizosphere and non-rhizosphere Stipa breviflora ammonium nitrogen nitrate nitrogen total nitrogen
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:5742073
来源机构	内蒙古农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/233982
作者单位	1.内蒙古农业大学生态环境学院, 呼和浩特, 内蒙古 010019, 中国; 2.内蒙古乌兰察布市察右后旗农牧业局, 乌兰察布, 内蒙古 012400, 中国
推荐引用方式 GB/T 7714	杜宇凡,古琛,王亚婷,等. 放牧率对短花针茅根际和非根际土壤氮素的影响[J]. 内蒙古农业大学,2016,33(6):1021-1027.
APA	杜宇凡.,古琛.,王亚婷.,赵天启.,陈万杰.,...&赵萌莉.(2016).放牧率对短花针茅根际和非根际土壤氮素的影响.草业科学,33(6),1021-1027.
MLA	杜宇凡,et al."放牧率对短花针茅根际和非根际土壤氮素的影响".草业科学 33.6(2016):1021-1027.