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在这次会议中,各省代表对土壤普查鉴定的技术问题交流了很多经验,现归纳如下,以供参考。一、物质准备:1.大比例尺地形图:可用五万分之一地形图放大,由农民按实际情况补充修改,如无五万分之一地形图可由农民自己绘制。2.工具:在普查前应准备好调查用具,如土钻、测坡仪、土刀、速测药剂及土样纸盒、木盒等。以上用具应尽量就地取材,可学习广东省应用火柴盒代替纸盒,用竹筒钻代替土钻的经验。3.调查表格:根据各地区的具体情况,拟
At this meeting, representatives of various provinces exchanged a great deal of experience on the technical issues of soil census identification and are summarized as follows for reference. First, the material preparation: 1. Large-scale topographic map: one hundred thousandth topographic map can be used to enlarge, according to the actual situation of farmers to add modifications, such as the absence of one hundred thousandth topographic map can be drawn by the farmers themselves. 2. Tools: Survey tools should be prepared before the census, such as soil drilling, slope measuring instrument, soil knives, rapid testing of drugs and soil-like cartons, wooden boxes and so on. The above equipment should be made on the spot, can learn to apply the matchbox in Guangdong Province instead of cartons, bamboo drill instead of earth drilling experience. 3. Survey Form: According to the specific circumstances of each region, to be