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考察的目的,一是了解和评价“三北”防护林建设一期工程的成效;二是总结一期工程建设的经验,以为规划好二期工程建设提供依据。这次在吉林省考察了属于半干旱区的乾安县,其经济类型有农业区、半农半牧区;属于半湿润区的农安、德惠、榆树、怀德四个县,均属于旱作农区。考察内容主要是农防林、用材林、固沙林、经济林、牧防林等。
The purpose of the inspection is to understand and evaluate the effectiveness of the first phase of the “Three North” shelterbelt construction project. The second is to summarize the experience of the first phase of construction and provide the basis for planning the second phase of the project. This time in Jilin Province, Qian’an County, a semi-arid area, was investigated for its economic types including agricultural areas, semi-agricultural and semi-pastoral areas. The four counties of Nong’an, Dehui, Yushu and Huai-de in semi-humid areas belong to dry farming Area. The contents of the study mainly include agricultural forest, timber forest, sand-fixing forest, economic forest, animal husbandry and forest protection.