Neutral effect of nitrogen addition and negative effect of phosphorus addition on topsoil extracellular enzymatic activities in an alpine grassland ecosystem

doi:10.1016/j.apsoil.2016.06.004

NWIPB OpenIR

	Neutral effect of nitrogen addition and negative effect of phosphorus addition on topsoil extracellular enzymatic activities in an alpine grassland ecosystem
	Jing, Xin 1,2; Yang, Xiaoxia 3,4; Ren, Fei 3; Zhou, Huakun 3; Zhu, Biao 1,2; He, Jin-Sheng 1,2,3
	2016-11-01
发表期刊	APPLIED SOIL ECOLOGY
卷号	107 页码:205-213
文章类型	Article
摘要	Soil nitrogen (N) and phosphorus (P) are common limiting nutrients affecting plant primary productivity in alpine ecosystems due to the low decomposition rate, though anthropogenic activities have greatly increased their inputs into ecosystems. Little is known regarding the effects of increasing N and P availabilities on the functioning of belowground microbial communities. To determine how soil microorganisms respond to N and P addition, we measured plant primary productivity, soil microbial biomass, soil mineral N availability, soil respiration, and the activities of soil extracellular enzymes after two years of N- and P-addition in an alpine grassland ecosystem on the Tibetan Plateau. We observed no significant effect of N addition on plant biomass, soil microbial biomass, soil respiration, or the activities of soil extracellular enzymes. In contrast, P addition increased plant biomass but suppressed the activities of most labile-C-cycling enzymes at 0-10 cm of soil depth, although the effects on soil microbial biomass and soil respiration were minor. Moreover, there was no interaction between N and P addition on these variables. Overall, N addition does not appear to exert a significant effect on plant primary productivity and microbial activity, whereas P addition increases plant primary productivity and tends to suppress topsoil microbial activity after two years of nutrient application. (C) 2016 Elsevier B.V. All rights reserved.
关键词	Soil Extracellular Enzyme Nitrogen Phosphorus Nutrient Availability Alpine Grassland Tibetan Plateau
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
DOI	10.1016/j.apsoil.2016.06.004
关键词[WOS]	SOIL MICROBIAL BIOMASS ; TERRESTRIAL ECOSYSTEMS ; TIBETAN PLATEAU ; NUTRIENT INPUTS ; BIODIVERSITY LOSS ; ORGANIC-MATTER ; CARBON STORAGE ; BOREAL FOREST ; RESPONSES ; FERTILIZATION
收录类别	SCI
语种	英语
项目资助者	National Program on Key Basic Research Project(2014CB954004) ; National Natural Science Foundation of China(31270481 ; State Key Laboratory of Forest and Soil Ecology(LFSE2015-04) ; State Key Laboratory of Soil and Sustainable Agriculture (Institute of Soil Science, Chinese Academy of Sciences) ; China Postdoctoral Science Foundation(2015M580918) ; 31321061)
WOS研究方向	Agriculture
WOS类目	Soil Science
WOS记录号	WOS:000384860400021
引用统计	被引频次：77[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/6404
专题	中国科学院西北高原生物研究所
作者单位	1.Peking Univ, Dept Ecol, Coll Urban & Environm Sci, 5 Yiheyuan Rd, Beijing 100871, Peoples R China 2.Peking Univ, Key Lab Earth Surface Proc, Minist Educ, 5 Yiheyuan Rd, Beijing 100871, Peoples R China 3.Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Adaptat & Evolut Plateau Biota, 23 Xinning Rd, Xining 810008, Peoples R China 4.Qinghai Acad Anim & Vet Sci, Key Lab Alpine Grassland Ecosyst River Head Water, Xining 810016, Peoples R China
推荐引用方式 GB/T 7714	Jing, Xin,Yang, Xiaoxia,Ren, Fei,et al. Neutral effect of nitrogen addition and negative effect of phosphorus addition on topsoil extracellular enzymatic activities in an alpine grassland ecosystem[J]. APPLIED SOIL ECOLOGY,2016,107:205-213.
APA	Jing, Xin,Yang, Xiaoxia,Ren, Fei,Zhou, Huakun,Zhu, Biao,&He, Jin-Sheng.(2016).Neutral effect of nitrogen addition and negative effect of phosphorus addition on topsoil extracellular enzymatic activities in an alpine grassland ecosystem.APPLIED SOIL ECOLOGY,107,205-213.
MLA	Jing, Xin,et al."Neutral effect of nitrogen addition and negative effect of phosphorus addition on topsoil extracellular enzymatic activities in an alpine grassland ecosystem".APPLIED SOIL ECOLOGY 107(2016):205-213.