今天我又看了一下巴西周边的国家玻利维亚，乌拉圭，巴拉圭，法属圭亚那。再比较远在亚洲，东南亚，老挝，柬埔寨，泰国，印度尼西亚，菲律宾等地，甚至非洲的部分地区，觉得他们有很相似的热带雨林, 亚热带气候. 南美的巴西生产，木材，稻米，玉米，大豆，咖啡，可可等农作物。而东南亚生产大米，椰子，咖啡，橡胶等作物。于是，我想世界上这些热带雨林，亚热带，适合农作物生长的土地，是不是也应该统一规划？按照土地的肥沃度，以及对某些作物的适合度，土地范围的大小，机械耕作的规模，以及全球范围对这些作物产量的需求度，来加以分配种植. 这样子，一方面产量提高，另一方面生产效率提高。每个国家为了追求作物种类丰富，一小片一小片地种，可能效率不高的。而且这些国家的地区，很多的民舍都是散布在田间里，妨碍大规模机械化生产.当生产效率和生产量提高，土地应尽可能地回归森林。


Today I took another look at the countries bordering Brazil, Bolivia, Uruguay, Paraguay and French Guiana. As far away as Asia, Southeast Asia, Laos, Cambodia, Thailand, Indonesia, the Philippines, and even parts of Africa, they have similar tropical and subtropical climates. Brazil produces timber, rice, corn, soybeans, coffee, cocoa and other crops in South America. And Southeast Asia produces rice, coconut, coffee, rubber and other crops. So, I think the world's rain forests, subtropical, suitable for agricultural land, should not also be unified planning? Planting is allocated according to the fertility of the land and its suitability for certain crops, the size of the land, the scale of mechanical farming, and the global demand for the yields of these crops. In this way, on the one hand, the output increases, on the other hand, the production efficiency increases. Each country in pursuit of a variety of crops, by small pieces of land, may not be efficient. And in areas of these countries, many homes are scattered in the fields, hindering large-scale mechanized production. As productivity and productivity increase, land should be returned to forests as much as possible.