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作 者:刘建明 温爱亭 姚颖 刘忠玲 吕跃东 LIU Jianming;WEN Aiting;YAO Ying;LIU Zhongling;LV Yuedong(Heilongjiang Forest Research Institute,Harbin 150081)
机构地区:[1]黑龙江省林业科学研究所
出 处:《森林工程》2019年第6期26-30,共5页Forest Engineering
基 金:国家科技支撑课题(2015BAD07B03)
摘 要:采用样地调查和土壤采样分析方法,对榛子(Corylus)人工林与天然林、榛子人工林与农田土壤养分进行分析对比,来探讨他们之间土壤养分特征,为森林可持续经营提供理论依据,人工造林和森林更新起指导作用,且为该区退耕还林可持续经营管理提供基础数据。结果表明榛子天然林土壤具有良好的物理性质,保水蓄水能力强;榛子人工林与农田地物理性质差异不大,说明榛子人工林由农田地转化的过程中,短期内土壤物理性质变化微弱。天然林总体养分含量最高,榛子人工林各养分含量均为最低,且榛子天然林与人工林各养分含量差异相对显著,根据榛子的生长状况来看,榛子人工林生长状况最好,但对土壤养分的消耗较大。因此,对榛子天然林应进行定期抚育管理,对榛子人工林进行定期人工管理,均形成一个良性可持续经营管理体系,为林区生活带来稳定且丰厚的经济效益。Using sample surveys and soil sampling methods,the soil nutrients of hazelnut natural forest,natural corylus forest and plantation forest were analyzed and compared to explore the characteristics of soil nutrients between them,which provided a theoretical basis for sustainable forest management,and provided guidance for artificial afforestation and forest renewal,and provided basic data for sustainable management of conversion of farmland to forest in the area.The results showed that the soil of hazelnut natural forest had good physical properties and strong water storage capacity.The physical properties of hazelnut plantation were not very different from those of farmland,which showed that the soil physical properties of hazelnut plantation changed weakly in the short term.The total nutrient content of natural forest was the highest,the nutrient content of hazelnut plantation was the lowest,and the nutrient content of hazelnut natural forest and plantation forest was relatively significant.According to the growth status of hazelnut plantation,the growth status of hazelnut plantation was the best.However,the consumption of soil nutrients was greater.Therefore,the natural hazelnut forest should be managed regularly,and the artificial hazelnut forest should be managed manually on a regular basis.All of them formed a sustainable management system and brought stable and rich economic benefits to the people in the forest area.
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