WARMING EFFECTS ON PLANT GROWTH, SOIL NUTRIENTS, MICROBIAL BIOMASS AND SOIL ENZYMES ACTIVITIES OF TWO ALPINE MEADOWS IN TIBETAN PLATEAU
文献类型：期刊论文
| 作者 | Li, Na1,2; Wang, GenXu1 ; Gao, YongHeng1; Wang, JunFeng3
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| 刊名 | POLISH JOURNAL OF ECOLOGY
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| 出版日期 | 2011 |
| 卷号 | 59期号:1页码:25-35 |
| 关键词 | alpine meadow swamp meadow soil microbial biomass soil organic carbon enzyme activity artificial warming Qinghai-Tibet Plateau |
| ISSN号 | 1505-2249 |
| 通讯作者 | Wang, GenXu |
| 英文摘要 | The 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. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 类目[WOS] | Ecology |
| 研究领域[WOS] | Environmental Sciences & Ecology |
| 关键词[WOS] | SIMULATED CLIMATE-CHANGE ; ENVIRONMENTAL MANIPULATIONS ; EXTRACTION METHOD ; ARCTIC SOILS ; SHORT-TERM ; TEMPERATURE ; RESPONSES ; TUNDRA ; CARBON ; RESPIRATION |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000288927700002 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/10576]  |
| 专题 | 成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室 |
| 作者单位 | 1.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 |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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