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HERO ID
3848826
Reference Type
Journal Article
Title
Response of alpine soils to nitrogen addition on the Tibetan Plateau: A meta-analysis
Author(s)
Fu, G; Shen, ZXi
Year
2017
Is Peer Reviewed?
1
Journal
Applied Soil Ecology
ISSN:
0929-1393
EISSN:
1873-0272
Volume
114
Page Numbers
99-104
DOI
10.1016/j.apsoil.2017.03.008
Web of Science Id
WOS:000401383400012
Abstract
A meta-analysis approach was used to identify general tendency of alpine soil responses to nitrogen fertilizer on the Tibetan Plateau. Nitrogen addition increased ammonium nitrogen (NH4(+)) and nitrate nitrogen (NO3-), but decreased pH. Effects of nitrogen addition on soil organic carbon (SOC), total nitrogen (TN), C:N ratio and pH differed among forests, alpine meadows and alpine steppes. Effects of nitrogen addition on NH4+, NO3-, soil microbial biomass carbon (MBC) and nitrogen (MBN) differed between alpine meadows and forests. Effects of NH4NO3 addition on SOC, TN, C:N ratio, NH4+, NO3-, MBC and pH differed with those of urea addition. The effect of nitrogen addition on pH was negatively correlated with mean annual temperature and mean annual precipitation. Soil conditions in control plots were positively correlated with the effect of nitrogen addition on pH, but negatively correlated with the effect of nitrogen addition on TN. Nitrogen addition rate was correlated with the effect of nitrogen fertilizer on NO3- and pH. Nitrogen addition duration was positively correlated with the effect of nitrogen fertilizer on pH. Therefore, effects of nitrogen fertilizers on alpine soils varied with nitrogen fertilizer types; climatic warming and precipitation change regulated effects of nitrogen fertilizer on alpine soils; and response of alpine soils to nitrogen addition may depend on initial soil conditions, rate and duration of nitrogen addition on the Tibetan Plateau. (C) 2017 Elsevier B.V. All rights reserved.
Keywords
Inorganic fertilizer; Microbial biomass; pH; Response ratio; Soil fertility
Tags
IRIS
•
Nitrate/Nitrite
Broad LitSearch 2016/1/1 - 2017/12/5
Refs found by LitSearch but not ATSDR/IARC
WoS
Refs found only by 2017 LitSearch or Citation Mapping
Ref Types 12/2017
Meta-Analyses
LitSearch Update 2016-2017
WoS
NAAQS
•
ISA NOxSOxPM Ecology (2018)
Cited in the Second Draft
Appendix 6
•
ISA NOxSOxPM Ecology (2020- Final Project Page)
Cited
Appendix 6
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