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1991年12月6～13日,由中国林科院林业所主持的五项“七五”国家科技攻关专题在京通过了鉴定。 毛乌素沙地立地分类评价和适地适树的研究由朱灵盖副研究员主持,9单位协作完成。首次建立起具有实用价值的多极立地分类系统;编制了毛乌素沙地立地质量数量化表;明确提出了乔灌结合,以灌木为主的草、林、农复合生态系统原则,对沙区开发具有重要的指导意义,编制了榆林芹河多彩色立地类型典型图,为造林规划设计、林种区划和经营管理提供了依据。该项研究成果已在生产中用于治沙规划31.3万公顷,其中2.5万公顷已进行了造林,直接经济效益140多万元。本成果在国内同类沙地的研究中居领先地位,达到国际先进水平。
From December 6 to December 13, 1991, the five “Five-Year-Five-Year” national scientific and technological research topics presided over by the Chinese Academy of Forestry Forestry Department passed the appraisal in Beijing. The research on the site classification and the suitable tree-planting in Mu Us sandy land is presided over by Zhu Lingkai, associate researcher, and 9 units collaborate. For the first time, a multi-polar stand classification system with practical value was established for the first time. The quantification table for site quality in Mu Us sandy land was compiled. The principle of combining shrubs and shrubs with shrubs and grassland, forest and agro-ecosystem was put forward clearly. Which has important guiding significance. The typical plots of multi-colored stand types of Qinhe in Yulin have been compiled, which provides the basis for planning, design, management and management of afforestation. The research results have been used in the production of sand control plan 313,000 hectares, of which 25,000 hectares have been afforestation, direct economic benefits more than 1.4 million. This result occupies the leading position in the researches of the same kind of sandy land in China and reaches the international advanced level.