[1]QIN Ji-hong,WU Yan-zhuo,SUN Hui,et al.Study on the Soil Enzyme Activity Dynamics under Different Ecological Restoration Models on Earquake-Induced Bareland in Mt. Longmen, Pengzhou[J].Research of Soil and Water Conservation,2013,20(03):55-59.
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Study on the Soil Enzyme Activity Dynamics under Different Ecological Restoration Models on Earquake-Induced Bareland in Mt. Longmen, Pengzhou
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
20
Number of periods:
2013 03
Page number:
55-59
Column:
Public date:
2013-06-28
- Title:
- Study on the Soil Enzyme Activity Dynamics under Different Ecological Restoration Models on Earquake-Induced Bareland in Mt. Longmen, Pengzhou
- Keywords:
- Wenchuan earthquake; secondary succession; ecological restoration; soil enzyme activities; Mt. Longmen
- CLC:
- S154.2
- DOI:
- -
- Abstract:
- Ecological restoration on those secondary bareland induced by earthquake generally includes restoration of vegetation and soil structure and function. Topsoils (0-30 cm) were sampled from three typical sites of secondary bareland caused by 5·12 Wenchuan Earthquake, i.e., earthquake collapse, debris flow alluvial fan, and landslide site in Mt. Longmen, soil enzyme activities, soil organic carbon, dissolved N, and available P were examined to determine soil restoration status after 3 years of earthquake. Results showed that after three years of natural restoration of vegetation, soil organic carbon, dissolved organic C, dissolved nitrogen, available phosphorus have been recovered to 27%~42%, 25%~46%, 6%~14%, 21%~83% of those in control plots, respectively. For soil enzymes, catalase activity was restored to more than 70% of that undisturbed plots, while activities of urease, sucrase, and alkaline phosphatase restored slowly, only were restored to 5%~19%, 6%~48%, and 6%~26% of those in undisturbed plots respectively, which indicated that restoration of soil fertility and soil enzyme activity is a long-term process for those secondary bare lands induced by earthquake.
- References:
-
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