Knowledge Resource Center for Ecological Environment in Arid Area
Changes in soil microbial biomasses and their quotients over the succession of karst rocky desertification | |
Xie Lianwu1,2,3,4; Deng Yanling1,2,3; Wang Bin4; Qin Haijiao4; Fang Jiqian4; Cao Fuxiang5; Wu Lichao1,2,3 | |
通讯作者 | Wu Lichao |
会议名称 | 3rd International Conference on Advances in Energy and Environmental Science (ICAEES) |
会议日期 | JUL 25-26, 2015 |
会议地点 | Zhuhai, PEOPLES R CHINA |
英文摘要 | To evaluate soil fertility of karst land undergoing rocky desertification (RD), the changing trend of soil microbial biomass properties over the succession of RD were studied by investigating the stands and analyzing the soil samples with four different RD grades in the northwestern Hunan province, China. The results showed that the changing trend of microbial biomass C (MBC), microbial biomass N (MBN), microbial biomass P (MBP), and the microbial biomass quotients including the ratio of MBC to total organic C (MBC/TOC), the ratio of MBN to total N (MBN/TN), and the ratio of MBP to TP (MBP/TP) was: potential RD > light RD > moderate RD > intensive RD, whereas the changing trend of microbial communities was not entirely consistent with the succession of RD. The increased grade of RD was significantly and negatively correlated to the increased contents of MBC (r = -0.86), MBN (r = -0.85), MBP (r = -0.73), MBC/TOC (r = -0.81), MBN/TN (r = -0.64), and MBP/TP (r = -0.72). The values of microbial biomass quotients were influenced by the content of organic matter inputting to soil. Therefore, microbial biomass C, N, P and microbial biomass quotients might be sensitive indicators to reflect the strength of soil fertility in the degraded karst regions. |
英文关键词 | karst rocky desertification microbial biomass carbon (MBC) microbial biomass nitrogen (MBN) microbial biomass phosphorus (MBP) microbial biomass quotient |
来源出版物 | PROCEEDINGS OF THE 3RD INTERNATIONAL CONFERENCE ON ADVANCES IN ENERGY AND ENVIRONMENTAL SCIENCE 2015 |
ISSN | 2352-5401 |
出版年 | 2015 |
卷号 | 31 |
页码 | 633-639 |
EISBN | 978-94-6252-130-8 |
出版者 | ATLANTIS PRESS |
类型 | Proceedings Paper |
语种 | 英语 |
国家 | Peoples R China |
收录类别 | CPCI-S |
WOS记录号 | WOS:000371425800116 |
WOS关键词 | UPPER YANGTZE-RIVER ; CHLOROFORM FUMIGATION ; SOUTHWESTERN CHINA ; GUIZHOU PROVINCE ; FOREST SOILS ; NITROGEN ; REGION ; EXTRACTION ; RELEASE ; CARBON |
WOS类目 | Energy & Fuels ; Engineering, Multidisciplinary ; Engineering, Electrical & Electronic ; Environmental Sciences |
WOS研究方向 | Energy & Fuels ; Engineering ; Environmental Sciences & Ecology |
资源类型 | 会议论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/303978 |
作者单位 | 1.Cent South Univ Forestry & Technol, Key Lab Cultivat & Protect Nonwood Forest Trees, Minist Educ, Changsha 410004, Hunan, Peoples R China; 2.Cent South Univ Forestry & Technol, Key Lab Nonwood Forest Prod, State Forestry Adm, Changsha 410004, Hunan, Peoples R China; 3.Cent South Univ Forestry & Technol, Cooperat Innovat Ctr Cultivat & Utilizat Nonwood, Changsha 410004, Hunan, Peoples R China; 4.Cent South Univ Forestry & Technol, Coll Sci, Changsha 410004, Hunan, Peoples R China; 5.Cent South Univ Forestry & Technol, Coll Life Sci & Technol, Changsha 410004, Hunan, Peoples R China |
推荐引用方式 GB/T 7714 | Xie Lianwu,Deng Yanling,Wang Bin,et al. Changes in soil microbial biomasses and their quotients over the succession of karst rocky desertification[C]:ATLANTIS PRESS,2015:633-639. |
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