[1]WEI Lan-ying,SHEN Wei-jun.Effects of Introduced Native Tree Species on Plant Community Soil Microbial and Chemical Properties in Two Subtropical Degraded Leguminous Plantations in South China[J].Research of Soil and Water Conservation,2013,20(06):24-31,53.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
20
Number of periods:
2013 06
Page number:
24-31,53
Column:
Public date:
2013-12-28
- Title:
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Effects of Introduced Native Tree Species on Plant Community Soil Microbial and Chemical Properties in Two Subtropical Degraded Leguminous Plantations in South China
- Author(s):
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WEI Lan-ying1,2, SHEN Wei-jun1
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1. South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510160, China;
2. University of Chinese Academy of Science, Beijing 100101, China
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- Keywords:
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soil microbial properties; soil chemical properties; plantation; south subtuopical
- CLC:
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S714
- DOI:
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- Abstract:
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Introducing native tree species into degraded plantations is one of the major measures used to facilitate forest succession and to restore natural ecosystems, yet its effects on soil microbial and chemical properties have not been well studied. To test its effects, we selected four plantations, two with and two without native tree species introduced (i.e. Acacia mangium[AM], Acacia auriculiformis[AA], Acacia mangium + native tree species[NM], biomass carbon (MBC), basal respiration (BR), metabolic quotation (qCO2), total organic carbon (TOC), and dissolved organic carbon (DOC) compared to the AM, but no significant changes of these variables were found in the NA compared to the AA. Total nitrogen (TN) and total phosphorus (TP) did not change, but NH4+-N and NO3--N decreased in both the NM and NA. These results indicated that introducing native tree species into degraded plantations can help restore native plant communities with more tree species diversity, but the potential positive or negative effects of introduced native tree species on soil microbial and soil chemical properties depend on plantation type. To ensure long-term sustainability, the effects of introduced native tree species in degraded A. mangium and A. Auriculiformis plantations on soil properties should be monitored. The restoration of degraded plantation to more natural plant communities is still a great challenge in this region.