[1]YANG Ping,WANG Hai-yan,ZHANG Hong-jiang.Effect of Different Forests for Soil and Water Conservation & Their Configuration Patterns on Soil Nutrients[J].Research of Soil and Water Conservation,2009,16(03):196-201.
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Effect of Different Forests for Soil and Water Conservation & Their Configuration Patterns on Soil Nutrients
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
16
Number of periods:
2009 03
Page number:
196-201
Column:
Public date:
2009-06-20
- Title:
- Effect of Different Forests for Soil and Water Conservation & Their Configuration Patterns on Soil Nutrients
- Keywords:
- Simian Mountain of Chongqing; forest for soil and water conservation; configuration patterns; soil nutrients
- CLC:
- S157;S714.7
- DOI:
- -
- Abstract:
- In order to understand the protection effect of different forests for soil and water conservation and their configuration patterns on soil nutrients, soil nutrients of these forests in the district of low mountains and hills in Simian Mountain of Chongqing were studied in different periods by applying descriptive statistical analysis, correlation analysis, principal component analysis and analysis of variance. The results showed that: ①There were significant differences of soil nutrients among bare land, plantations and natural forests, with the order of natural forests > plantations for soil and water conservation > bare land. In natural forest and plantation sample plots, the organic matter content, total N, available P and readily available K concentration was 82.61 g/kg,2.81 g/kg,8.86 mg/kg,120.91 mg/kg,59.80 g/kg,2.14 g/kg,8.43 mg/kg,98.81 mg/kg respectively, which increased by 231.08%, 212.06%, 11.77%, 84.39% and 139.67%, 138.12%, 6.32%, 50.69% accordingly when compared with those in bare land. ② A significant effect of forest age on soil nutrients was found. Compared with 5-year-old plantations, the nutrients concentrations in the first principal component in the 10-year-old plantations increased 127.59%. When compared with the bare land, the organic matter content, total N, available P and readily available K concentration in the 10-year-old plantations and 5-year-old plantations increased 202.47%, 265.01%, 10.06%, 76.22% and 125.12%, 75.39%, 3.46%, 42.14% respectively.③The 10-year-old plantations were the rival of the natural forests for soil nutrients protection. However, there were no significant differences between different configuration patterns of forests for soil and water conservation on soil nutrients.
- References:
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