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黄淮海平原兰考泡桐胶合板材林优化栽培模式(1)建立了黄淮海地区兰考泡桐立地分类和立地质量评价系统。该系统分立地类型区编制了4个数量化地位指数得分表,解决了有林地和无林地立地质量的统一评价问题;提出了27个适于兰考泡桐胶合板材林培育的立地类型;构建了可用来预测
(1) The site classification and site quality evaluation system of Paulownia macrophylla in Huang-Huai-Hai area were established. In this system, four quantitative status index score tables were compiled separately to solve the problem of uniform evaluation of the stand quality of forestland and non-forest land; 27 site types suitable for forest cultivation of Paulownia penguin plywood were proposed; To predict