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本次调查的主要任务是查清伊吾县森林、林地和林木资源的种类、数量和质量,客观反映区域自然、社会经济条件和经营管理状况,综合分析与评价森林资源与经营现状,提出森林资源培育、保护和利用意见。以地区为总体,分别设平原人工林及天然林两个副总体,采用系统抽样控制总体蓄积与目测调查、卫片判读相结合的方法,用1:1万的卫星影像图结合GPS定位仪,现地定位、调绘并调查小班各项因子。
The main task of this survey is to find out the types, quantity and quality of forest, woodland and forest resources in Yiwu County, to objectively reflect the natural, social and economic conditions of the area and the status of operation and management. Comprehensive analysis and appraisal of the status of forest resources and management, Resource cultivation, protection and use of opinions. Taking the region as a whole, the two sub-groups of plain and natural forest were set up respectively. The method of systematic sampling to control the overall accumulation and visual investigation and the interpretation of health-care slices was used. With 1: 10000 satellite imagery combined with GPS locator, Local positioning, mapping and investigation of various factors in small classes.