• 立地类型划分抗逆树种选择半干旱风沙区适造林技术关键

    The division of site type and selection of resistant species are key techniques to afforestation of matching trees with site conditions in semiarid sand area.

    youdao

  • 利用118野外标准地资料,对晋东南石灰岩山地油松人工林进行了立地类型划分生长评价

    The division of site types and appraisal of growth were studied with data from 118 sample plots on Chinese pine in the calcareous mountain areas, Shanxi Province.

    youdao

  • 主要依据原则工作具体需要进行造林设计划分造林地主要立地类型制定了林分改造年度计划造林地类型

    Mainly according to the rules of suitable trees and suitable sites and the work need, authors divide the stand types, then design the yearly stand rebuilding plans and stand types tables.

    youdao

  • 划分森林立地类型综合评价林地质量科学地进行营造林预测森林生产力基础

    Dividing the forest site type, comprehensive appraisal the quality of forest land are the bases to match species with the site, scientifically mange and afforest and predict productivity.

    youdao

  • 依据大量调查资料应用有序样本方法林分类型立地条件林龄确定次生林改造生长量划分标准

    Based on a large amount of investigating data, the authors use cluster analysis method with ordered samples to set dividing standards for the growth rate of secondary forests rechange.

    youdao

  • 研究结果:南岭山地(江西部分)划分森林立地,两类森林立地类型区,46个森林立地类型

    The results show that the Jiangxi part of NanlingMountainous area can be divided into two forest site distribution subregions, two forest site type regions and 46 forest site-types.

    youdao

  • 研究地区划分12个类型,编制立地类型表,采用热量水分养分三段式命名为备立地类型命名

    According to the results, the region was classified into 12 site types at a fixed similarity level, which were named by three-section name method (heat, water and nutrient).

    youdao

  • 研究地区划分12个类型,编制立地类型表,采用热量水分养分三段式命名为备立地类型命名

    According to the results, the region was classified into 12 site types at a fixed similarity level, which were named by three-section name method (heat, water and nutrient).

    youdao

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