WANG Yikun,JIN Aiwu,FANG Shengzuo,et al.Soil Infiltration Characteristics of Phyllostachys edulis Forests with Different Management Intensities in Southwest Zhejiang[J].Research of Soil and Water Conservation,2015,22(02):41-46.
浙西南不同经营强度下毛竹林土壤渗透性研究
- Title:
- Soil Infiltration Characteristics of Phyllostachys edulis Forests with Different Management Intensities in Southwest Zhejiang
- Keywords:
- soil infiltration characteristics; Phyllostachys edulis forests; management intensity; soil fauna
- 分类号:
- S714.7
- 摘要:
- 采用双环刀法研究了浙西南山区不同经营强度下毛竹林土壤的渗透性及其与土壤理化性质、土壤动物多样性的关系。结果表明：1）4种经营强度的林地土壤渗透性排列依次为粗放经营毛竹林 > 笋竹两用林 > 笋用林 > 笋用—覆盖林，且各经营强度的土壤渗透性均随土层深度的增加而降低。2）Kostiakov模型更适合模拟该研究区域的土壤水分入渗过程，Philip模型拟合结果次之，Horton模型最差。3）土壤渗透性和土壤密度呈极显著负相关，而与总孔隙度、非毛管孔隙度、土壤有机质、全N等呈极显著正相关。4）土壤初渗率、稳渗率与土壤动物（除双尾目）存在正相关，而粗放经营毛竹林和笋竹两用林的土壤动物丰富度及类群多样性较高，笋用林和笋用覆盖林相对较低。试验说明经营强度的不同会对土壤渗透性产生影响，人为干扰较弱的粗放经营林和笋竹两用林土壤渗透性较好，而笋用林和笋用覆盖林土壤渗透性相对较差，这为山地毛竹林地表径流调节及水土流失防治提供理论参考。
- Abstract:
- Soil infiltration characteristics and their relationships with soil properties and soil fauna diversity of Phyllostachys edulis forests under different management intensities were studied in southwest Zhejiang with double-ring method based on the field investigation. The results showed that: 1) with regard to four management intensities, the soil infiltration characteristics were in the order of extensive management forest > Phyllostachys edulis shoot and timber use forest > Phyllostachys edulis shoot forest > Phyllostachys edulis shoot forest with biological mulching, and decreased with increase of soil depth; 2) the Kostiakov model could well fit the soil water infiltration processes in the Phyllostachys edulis forests, followed by the Philip mode and the Horton model; 3) soil infiltration characteristics had very significant negative linear correlation with soil bulk density, and very significant positive linear correlations with soil total porosity， non-capillary porosity, organic matter content and total nitrogen; 4) in the RDA analysis, the change of soil infiltration characteristics also could be reflected by the change diversity of soil fauna in Phyllostachys edulis forests. The study results suggested that management intensity had significant impacts on soil infiltration characteristics, which may be useful for controlling soil and water losses and sustainable development of Phyllostachys edulis forest in the mountainous region.
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备注/Memo
收稿日期:2014-05-13;改回日期:2014-06-05。
基金项目:国家重点基础研究发展计划（973计划）人工林生态系统生物多样性和生产力关系（2012CB416904）
作者简介:王意锟(1984-),男,江苏扬州人,博士,讲师,主要从事森林培育研究。E-mail:wykknjfu@163.com
通讯作者:金爱武(1969-),男,浙江遂昌人,博士,研究员,主要从事竹林培育研究。E-mail:kinaw@zafu.edu.cn