上海地处东海之滨的长江口,属世界著名长江三角洲河口低平原。全市土地面积6192.4平方公里,耕地548万亩。这里地势平坦,土壤肥沃,气候温暖,河网稠密,发展农业生产的自然条件十分有利,是我国农业高产稳产的地区之一。作为农业生产重要手段的上海土壤,仅在1959年进行了全市群众性的第一次土壤普 Located in the mouth of the East China Sea, Shanghai is a lowland plain in the world famous Yangtze River Delta. The city’s land area of ​​6192.4 square kilometers, 548 acres of arable land. The flat terrain here, fertile soil, warm climate, dense river network, the natural conditions for the development of agricultural production are very favorable and it is one of the areas with high and stable agricultural output in our country. As an important means of agricultural production of Shanghai soil, only in 1959 carried out the city’s first mass of soil general