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Influence of Plant Community Succession on Soil Physical Properties during Subalpine Coniferous Plantation Rehabilitation in Western Sichuan
Authors
何海
刘世全
+5 more
刘庆
吴彦
庞学勇
张宗锦
林波
Publication date
1 December 2003
Publisher
'UPV/EHU Press'
Doi
Cite
Abstract
研究了川西亚高山针叶林人工重建过程中土壤物理性质,结果表明;随着人工云杉林龄的增加,土壤表层粉粒、粘粒、物理性粘粒、团聚度和结构系数降低,砂粒含量增高,土壤饱和持水量、毛管持水量及总孔隙和毛管孔隙在人工云杉林演替过程中表现出U型变化,即人工云杉从幼林向成熟林演替阶段,土壤饱和持水量、毛管持水量及总孔隙和毛管孔隙则减少,在40年生云杉林达最低值之后,随着云杉自疏而有上升的趋势,毛管持水量是决定林地土壤自然含水量的主要因子。为了加速该区域植被恢复和重建过程,建议营造针阔混交林和对人工成熟林和过熟林进行间伐抚育,增加物种多样性,减少水土流失,为植物生长创造良好的土壤物理环境
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Last time updated on 31/03/2020