毛竹林地不同植被恢复模式的土壤物理性质评价

doi:10.16232/j.cnki.1001-4179.2019.03.016

摘要/Abstract

摘要： 毛竹林地过度经营开发导致了林地生态系统的恶化，通过实施林下灌草植被恢复可以改善林地植被结构、增强水土保持功能和改善林地土壤性状。因此，开展毛竹林下不同植被恢复模式的土壤物理性质评价，有利于指导毛竹林的经营与管理。采用灰色关联分析法研究了毛竹纯林下种植灌木和种植灌草两种植被恢复模式对土壤持水能力和孔隙状况的影响。研究结果表明：对过度开发毛竹林地进行植被恢复可以增加土壤非毛管孔隙数量，提高土壤持水能力11%~26%，土壤持水能力与孔隙数量有密切的关系。毛竹纯林、毛竹林下种植灌木和种植灌草模式的灰色关联度平均值分别为0.5273，0.6441和0.7652，说明毛竹纯林下种植灌草植被模式的土壤物理性质最优，该模式可以显著改善毛竹纯林地的土壤物理性质。

关键词: 土壤性状, 毛竹林, 植被恢复, 灰色关联分析

Abstract: The overexploitation of the Phyllostachys pubescens forest leads to the deterioration of the forest ecosystem. Undergrowth restoration in the Phyllostachys pubescens forest can improve undergrowth structure, enhance soil and water conservation function and improve soil properties. Therefore, the assessment of soil physical properties under different undergrowth restoration patterns in the Phyllostachys pubescens forest is helpful to guide its operation and management. The grey correlation analysis method was applied to study the effects of two patterns on soil water holding capacity and pore condition. One pattern was planting shrub, the other one was planting shrub and grass. The results showed that the undergrowth restoration can increase the number of soil noncapillary pores and improve soil water holding capacity by 11% ~ 26%. Soil water holding capacity was closely related to the amount of soil pores. The mean correlation degrees of net Phyllostachys pubescens forest, undergrowth of planting shrub and undergrowth of planting shrub and grass were 0.5273, 0.6441 and 0.7652, respectively. It was indicated that the physical properties of the shrub-grass pattern was the best and can significantly improve the soil physical properties.

Key words: soil properties, Phyllostachys pubescens forest, undergrowth restoration, grey correlation analysis

李钢，刘祥超，张由松，石鑫，王冉，陆芳春. 毛竹林地不同植被恢复模式的土壤物理性质评价[J]. 人民长江, doi: 10.16232/j.cnki.1001-4179.2019.03.016.

LI Gang，LIU Xiangchao，ZHANG Yousong，SHI Xin，WANG Ran，LU Fangchun. Assessment of soil physical properties under different undergrowthrestoration patterns in phyllostachys pubescens forest[J]. , doi: 10.16232/j.cnki.1001-4179.2019.03.016.

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毛竹林地不同植被恢复模式的土壤物理性质评价

Assessment of soil physical properties under different undergrowthrestoration patterns in phyllostachys pubescens forest

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