山涧口流域油松人工林水化学特征及离子流转

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英文篇名：Hydro-chemical Characteristics and Ions Transfer of Pinus tabulaeformis Plantation in Shanjiankou Basin 作者：李联地 英文作者：Li Liandi;Hebei Academy of Forestry Science; 关键词：油松人工林 ; 水化学特征 ; 离子流转 英文关键词：Pinus tabulaeformis plantation;;Hydro-chemical characteristic;;Ion transfer 中文刊名：东北林业大学学报 英文刊名：Journal of Northeast Forestry University 机构：河北省林业科学研究院; 出版日期：2019-06-12 11:54 出版单位：东北林业大学学报 年：2019 期：07 基金：林业科技创新平台运行补助项目(2017-LYPT-DW-004);; 河北省重点研发计划项目(18226815D) 语种：中文; 页：81-85+131 页数：6 CN：23-1268/S ISSN：1000-5382 分类号：S715

摘要

为了研究小五台山山涧口流域油松(Pinus tabulaeformis Carr.)人工林水化学特征及离子流转,收集生长初期、生长中期、生长后期的降水及再分配过程(穿透水、树干径流、枯落物渗透水、坡面径流)水样,并测定分析水样的pH值,Ca~(2+)、Mg~(2+)、K~+、Na~+、Zn~(2+)、Mn~(2+)、Fe~(2+)、Cu~(2+)质量浓度。结果表明:在穿透水和树干径流中,Ca~(2+)、Mg~(2+)、K~+、Mn~(2+)、Fe~(2+)质量浓度由大到小的排序为生长初期、生长中期、生长后期; Cu~(2+)质量浓度由大到小的排序为生长后期、生长初期、生长中期。在枯落物渗透水和坡面径流中Ca~(2+)质量浓度由大到小的顺序表现为生长中期、生长初期、生长后期; Mg~(2+)、Mn~(2+)、Fe~(2+)质量浓度由大到小的排序为生长初期、生长中期、生长后期; Cu~(2+)质量浓度由大到小的排序为生长中期、生长后期、生长初期; K~+、Na~+、Zn~(2+)质量浓度无规律。与同期降水比较,生长初期再分配过程中Mg~(2+)、Mn~(2+)、Na~+、K~+、Ca~(2+)、Fe~(2+)、Zn~(2+)表现为淋溶流失。生长中期再分配过程中Ca~(2+)、Mn~(2+)、Fe~(2+)表现为淋溶流失; Mg~(2+)、K~+在枯落物渗透水中淋溶流失,在其他再分配过程中表现为吸收; Na~+在树干径流中表现为淋溶流失,在其他再分配过程中表现为吸收; Zn~(2+)在树干径流中表现为吸收,在其他再分配过程中少量淋溶流失; Cu~(2+)在枯落物渗透水中表现为淋溶流失,在其他再分配过程中无变化。生长后期再分配过程中Ca~(2+)、Mg~(2+)、Zn~(2+)、Mn~(2+)表现为淋溶流失,Na~+、Cu~(2+)表现为吸收; K~+、Fe~(2+)在枯落物渗透水中表现为淋溶流失,在其他再分配过程中表现为吸收。pH值在3个阶段都下降。油松林将超过91%的降水截蓄在林地,油松生长必须的K~+、Cu~(2+)处于消耗状态,合计净余量由大到小的排序为生长初期、生长中期、生长后期。
        In order to study on hydro-chemical characteristics and ions transfer of Pinus tabulaeformis plantation in Xiaowutaishan Mountain of Shanjiankou Basin,we collected water samples of rainfall and rainfall redistribution processes( through-fall,stemflow,litter-through,runoff on slope) at early growth stage,middle growth stage,and later growth stage,and determined pH value of the water sample and the contents of Ca~(2+) ,Mg~(2+) ,K~+,Na~+,Zn~(2+) ,Mn~(2+) ,Fe~(2+) ,and Cu~(2+) . In throughfall and stemflow,the descending order of Ca~(2+) ,Mg~(2+) ,K~+,Mn~(2+) ,and Fe~(2+) in content was early growth stage,middle growth stage,and later growth stage,and the descending order of content for Cu~(2+) was later growth stage,early growth stage,and middle growth stage. In litter-through and runoff on Slope,the descending order of content for Ca~(2+) was middle growth stage,early growth stage,and later growth stage,the descending orders of content for Mg~(2+) ,Mn~(2+) and Fe~(2+) were early growth stage,middle growth stage,and later growth stage,and the descending order of content for Cu~(2+) was middle growth stage,later growth stage,and early growth stage,and the descending orders of content for K~+,Na~+and Zn~(2+) were irregularly. Compared with rainfall in the same period,at early growth stage,the Mg~(2+) ,Mn~(2+) ,Na~+,K~+,Ca~(2+) ,Fe~(2+) ,Zn~(2+) showed leaching loss in all rainfall redistribution processes. At middle growth stage,Ca~(2+) ,Mn~(2+) and Fe~(2+) showed leaching loss in all rainfall redistribution processes; Mg~(2+) and K~+showed leaching loss in litter-through and absorption in other rainfall redistribution processes; Na~+showed leaching loss in stemflow and absorption in other rainfall redistribution processes; Zn~(2+) showed absorption in stemflow and leaching loss in other rainfall redistribution processes; Cu~(2+) showed leaching loss in litter-through and unchanged in other rainfall redistribution processes. At later growth stage,Ca~(2+) ,Mg~(2+) ,Zn~(2+) ,and Mn~(2+) showed leaching loss,and Na~+and Cu~(2+) showed absorption in all rainfall redistribution processes; K~+and Fe~(2+) showed leaching loss in litter-through and absorption in other rainfall redistribution processes. The pH value was reduced in all three stages. The P. tabulaeformis plantation retained more than 91% rainfall,K~+and Cu~(2+) needed for growth of P. tabulaeformis were in consumption state,and the descending order of total net surplus was early growth stage,middle growth stage,and later growth stage.

引文

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