IMHE OpenIR  > 山地表生过程与生态调控重点实验室
WARMING EFFECTS ON PLANT GROWTH, SOIL NUTRIENTS, MICROBIAL BIOMASS AND SOIL ENZYMES ACTIVITIES OF TWO ALPINE MEADOWS IN TIBETAN PLATEAU
Li, Na1,2; Wang, GenXu1; Gao, YongHeng1; Wang, JunFeng3
Corresponding AuthorWang, GenXu
2011
Source PublicationPOLISH JOURNAL OF ECOLOGY
ISSN1505-2249
Volume59Issue:1Pages:25-35
SubtypeArticle
AbstractThe aim of this study was to assess initial effects of warming on the plant growth, soil nutrient contents, microbial biomass and enzyme activities of two most widespread ecosystem types: swamp meadow (deep soil, high water content) and alpine meadow (poor soil, low water content), in the hinterland of the Qinghai-Tibet Plateau (altitude 4600-4800 m a.s.l.) The temperature of air and upper soil layer was passively enhanced using open-top chambers (OTCs) (50 cm high with 60 cm at opening and constructed of 6 mm thick translucent synthetic glass) from 2006 to 2008. The use of OTCs clearly raised temperature and decreased soil moisture. In warmed plots, monthly mean air temperature was increased by 2.10 degrees C and 2.28 degrees C, soil moisture of 20 cm soil layer was decreased by 2.5% and 3.9% in alpine meadow and swamp meadow, respectively. Plant biomass significantly increased by 31% in alpine meadow and 67% in swamp meadow. Warming also affected soil microbial biomass C and N at both meadows. In swamp meadow, warming caused the decrease of soil organic carbon and total nitrogen in 0-5 cm layer and an increase in 5-20 cm. While in alpine meadow, these soil parameters increased in 0-5 cm layer and decreased in 5-20 cm layer. The effects of warming on enzyme activities differed depending on the enzyme and the meadow ecosystem. In general, enzyme activities were higher in the upper soil layers (0-5 cm) than in the lower soil layers (5-20 cm). The experiment results exhibited that warming improved the soil biochemical and microbiological conditions in high-mountain meadows, at least in the short term.
KeywordAlpine Meadow Swamp Meadow Soil Microbial Biomass Soil Organic Carbon Enzyme Activity Artificial Warming Qinghai-tibet Plateau
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
WOS Subject ExtendedEnvironmental Sciences & Ecology
Indexed BySCI
WOS KeywordSIMULATED CLIMATE-CHANGE ; ENVIRONMENTAL MANIPULATIONS ; EXTRACTION METHOD ; ARCTIC SOILS ; SHORT-TERM ; TEMPERATURE ; RESPONSES ; TUNDRA ; CARBON ; RESPIRATION
Language英语
Quartile4区
WOS SubjectEcology
WOS IDWOS:000288927700002
Funding OrganizationNational Basic Research Program (973) of China(2007CB411504) ; National Science Fund for Distinguished Young Scholar(40925002)
Citation statistics
Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/10576
Collection山地表生过程与生态调控重点实验室
Affiliation1.Chinese Acad Sci, Grad Univ, Beijing 10039, Peoples R China
2.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Environm Evolvement & Regulat, Chengdu 610041, Peoples R China
3.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Li, Na,Wang, GenXu,Gao, YongHeng,et al. WARMING EFFECTS ON PLANT GROWTH, SOIL NUTRIENTS, MICROBIAL BIOMASS AND SOIL ENZYMES ACTIVITIES OF TWO ALPINE MEADOWS IN TIBETAN PLATEAU[J]. POLISH JOURNAL OF ECOLOGY,2011,59(1):25-35.
APA Li, Na,Wang, GenXu,Gao, YongHeng,&Wang, JunFeng.(2011).WARMING EFFECTS ON PLANT GROWTH, SOIL NUTRIENTS, MICROBIAL BIOMASS AND SOIL ENZYMES ACTIVITIES OF TWO ALPINE MEADOWS IN TIBETAN PLATEAU.POLISH JOURNAL OF ECOLOGY,59(1),25-35.
MLA Li, Na,et al."WARMING EFFECTS ON PLANT GROWTH, SOIL NUTRIENTS, MICROBIAL BIOMASS AND SOIL ENZYMES ACTIVITIES OF TWO ALPINE MEADOWS IN TIBETAN PLATEAU".POLISH JOURNAL OF ECOLOGY 59.1(2011):25-35.
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