搜索结果: 1-1 共查到“国际动态 土壤地理学”相关记录1条 . 查询时间(3.34 秒)
Earth’s dirty little secret: Slowly but surely we are skinning our planet
soil agriculture
2007/4/23
Apr. 16, 2007，Throughout history civilizations expanded as they sought new soil to feed their populations, then ultimately fell as they wore out or lost the dirt they depended upon. When that happened...