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为合理利用土壤资源,对不同土壤体系的自然适应性和经济可行性,进行质量评价的研究日益引为人们重规.但是,由于农业生产条件复杂,种植利用类型多样,评价内容往往繁简不一,评价方法也各有千秋.本文是根据上海郊区土壤资源数量有限,利用日趋集约,要求提高质量增加单产的特点,对高产地区土壤的质量统计评价作了尝试.这项工作是以测绘部门的1:2000比例尺航片影象图和同比例尺线划图,经过室内外校核修测,在绘制成1:2000比例尺田块图的基础上,通过松江县新桥公社大比例尺土壤普查和面积量算等所获资料整理而成.
In order to make rational use of soil resources, natural adaptability and economic feasibility of different soil systems, the research on quality evaluation is increasingly cited as heavy regulation.However, due to the complicated agricultural production conditions and the diversified types of cultivation and utilization, the evaluation content tends to be cumbersome First, the evaluation methods also have their own advantages and disadvantages.This paper is based on the limited quantity of soil resources in Shanghai suburbs, the use of increasingly intensive, requiring increased quality and increase yield characteristics of soil in the high yielding area of the statistical evaluation made an attempt.This work is based on the mapping department 1 : 2000 scale aerial photos and the same scale chart, after indoor and outdoor check repair, plotted into a 1: 2000 scale plots on the basis of the map, through the Songjiang County Xinqiao commune large-scale soil census and the amount of area Calculated by the data compiled from.