|本期目录/Table of Contents|

[1]王长庭,龙瑞军,王启兰,等.三江源区高寒草甸不同退化演替阶段土壤有机碳和微生物量碳的变化[J].应用与环境生物学报,2008,14(02):225-230.
 WANG Changting,et al..Changes in Soil Organic Carbon and Microbial Biomass Carbon at Different Degradation Successional Stages of Alpine Meadows in the Headwater Region of Three Rivers in China[J].Chinese Journal of Applied & Environmental Biology,2008,14(02):225-230.
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三江源区高寒草甸不同退化演替阶段土壤有机碳和微生物量碳的变化()
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《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]

卷:
14卷
期数:
2008年02期
页码:
225-230
栏目:
综述
出版日期:
2008-02-15

文章信息/Info

Title:
Changes in Soil Organic Carbon and Microbial Biomass Carbon at Different Degradation Successional Stages of Alpine Meadows in the Headwater Region of Three Rivers in China
作者:
王长庭龙瑞军王启兰景增春施建军杜岩功曹广民
Author(s):
WANG Changtinget al.
(1Northwest Plateau Institute of Biology, Chinese Academy of Sciences, Xining 810008, China) (2College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730070, China) (3Grassland Institute, Qinghai Academy of Animal and Veterinary Science, Xining 810016, China)
关键词:
关键词 三江源区高寒草甸退化演替土壤有机碳土壤微生物量碳
Keywords:
Keywords headwater region of three rivers alpine meadow degradation succession soil organic carbon soil microbial biomass carbon
Abstract:
Abstract Alpine meadow ecosystem is one of the important grassland resources for grazing on the Tibetan Plateau. The methods of field survey and experiment analysis were applied to detect the changes in soil organic carbon (SOC) and soil microbial biomass carbon (MBC) of alpine meadows at different degradation successional stages in the headwater region of three rivers. The results showed that the contents of SOC and MBC were higher in 0~10 cm soil layer at different degradation successional stages, the contents of SOC and MBC in 0~40 cm soil significantly decreased with aggravating degradation of the meadows the and the percent vegetation cover and biomass percent of palatable herbage were correspondingly shown to decrease across meadows in the region. Soil quality and soil nutrition were decreasing with the increasing of soil degradation, SOC and MBC contents decreased rapidly with increasing grazing density. There was significant correlation between the two indices on soil organic matter, soil moisture and soil available N, indicating that both SOC and MBC could be used as the important indicators to measure the changes of soil quality. Fig 2, Tab 4, Ref 29

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更新日期/Last Update: 2008-04-23