土壤是农业生产的主要自然资源和基本生产资料。研究土壤生态类型与农业生产的关系是我们的任务之一。每个地区的农业生产、同时受着自然规律和经济规律的制约。而农业分区,又是农业区划的重要内容。在划分农业区的实践中,我们深深地体会到:尽管划分农业区的因素比较复杂,但土壤生 Soil is the main natural resource and basic means of production of agricultural production. Studying the relationship between soil ecological types and agricultural production is one of our tasks. Agricultural production in each region is subject to both natural and economic laws. The division of agriculture, agricultural division is an important part. In the practice of dividing agricultural areas, we deeply understand that although the factors that divide the agricultural areas are more complex,