明代嘉湖地区的桑基农业分布于细致的水网中,有着特别的水土环境。南宋以后,嘉湖地区的水网大致定型,到明代,河网在不同条件下仍有细分化,形成了更多的人为的微地貌和水土小环境。田野中的水生植物在减少,一些重要的沼泽植被群落在水网的分化下发生了规模和形态变化。由于人们长期的挖河泥和耕作,桑基堆叠土和圩田水稻土都向良性的方向发展。在市镇经济和丝织业的推动下,人们在旱地引河渠,在深水区挖泥堆土,开凿小池塘,这都使桑基稻田和桑基鱼塘增多。 San-based agriculture in the Jiahu region of the Ming Dynasty was distributed in a detailed water network with a special water and soil environment. After the Southern Song Dynasty, the water network in the Jiahu area was roughly shaped. By the Ming Dynasty, the river network was still subdivided under different conditions, forming more man-made micro-topography and water and soil environment. The number of aquatic plants in the field is decreasing, and some important swamp vegetation communities undergo size and morphological changes under the differentiation of the water network. Due to the long-term digging of rivers and tillage, the mound of Sanji and polder paddy soil have developed in a positive direction. Driven by the economy of the towns and the silk industry, people dredged aqueduct in dry land, dredged earth and dug deep ponds and dug ponds, which increased the number of mulberry fields and mulberry ponds.