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| Content Provider | Springer Nature Link |
|---|---|
| Author | Tian, Ye Haibara, Kikuo Toda, Hiroto Ding, Fangjun Liu, Yanhui Choi, Dongsu |
| Copyright Year | 2008 |
| Abstract | Mountain closure, considered an effective and economic measure for natural restoration of degraded forest ecosystems, has been widely carried out in the karst region of southwest China. The aim of this study was to evaluate microbial aspects of soil quality after mountain closure by analyzing soil microbial biomass, basal respiration, metabolic quotient, and relationships with basic chemical properties in Guizhou Province, a karst region of the upper Yangtze River. Soil quality was considered poor from the low levels of microbial biomass carbon (MBC), nitrogen (MBN), and microbial quotient (MBC/total C and MBN/total N), but high metabolic quotient (qCO2). Soil pH, showing marked variation from 4.1 to 7.9 in this karst region, was proved to significantly affect soil microbial biomass and activity. Soil microbial biomass, microbial quotient, and soil basal respiration declined significantly with decreasing soil pH, while qCO2 showed an apparently increasing, but not statistically significant, trend. The changes in microbial biomass and activity following the change in soil pH could possibly be because of a change in soil microbial composition, and more detailed research is necessary. Compared with soil pH, soil organic matter content was another, more important, factor that directly restricted microbial growth because of the serious loss as a result of disturbance. As a practical application based on microbial aspects, introduction of some N-fixing tree species may be an active and effective measure to improve soil fertility and thus to accelerate restoration of the forest ecosystem in the karst region. |
| Starting Page | 205 |
| Ending Page | 214 |
| Page Count | 10 |
| File Format | |
| ISSN | 13416979 |
| Journal | Journal of Forest Research |
| Volume Number | 13 |
| Issue Number | 4 |
| e-ISSN | 16107403 |
| Language | English |
| Publisher | Springer Japan |
| Publisher Date | 2008-05-17 |
| Publisher Place | Japan |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Karst region Metabolic quotient Microbial biomass Mountain closure Rocky desertification Soil pH Plant Ecology Plant Sciences Tree Biology Forestry Management Forestry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Forestry |
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