宁夏引黄灌区河北杨人工林优良林分及优树选择研究
저하인황관구하북양인공림우량림분급우수선택연구
The selection of superior stand and plus tree of Populus hopeiensis artificial forest in Ningxia irrigation area
  • 万方数据
    农业科学研究 농업과학연구
    Journal of Agricultural Sciences
    2015年 3期 9-13 ,共5页

    唐建宁%刘红霞%刘福忠%惠学东%宋华

    당건저%류홍하%류복충%혜학동%송화

    河北杨%优良林分%优树 河北楊%優良林分%優樹
    하북양%우량림분%우수
    Populus hopeiensis Hu et Chow%superior stand%plus tree
    通过标准地调查法在宁夏引黄灌区选择出3块河北杨人工林优良林分,在优良林分中通过实测确定河北杨优树选择的数量指标、形质指标和抗性指标,采用5株优势木对比和综合评分法选择出优树5株.
    통과표준지조사법재저하인황관구선택출3괴하북양인공림우량림분,재우량림분중통과실측학정하북양우수선택적수량지표、형질지표화항성지표,채용5주우세목대비화종합평분법선택출우수5주.
    Taking the man-made forest of Populus hopeiensis Hu et Chow in yellow river irrigating region in northern Ningxia as the research object,first three pieces of superior stands were selected through investigated with method of standard block, next the criterion of quantity,quality,resistance for choosing plus tree were got by investigated and analyzed,then five plus trees were choosed with method of the five dominant tree and comprehensive scores.
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