搜索结果: 1-1 共查到“林学 Land degradation”相关记录1条 . 查询时间(0.058 秒)
Killing two birds with one stone: Transferring knowledge to fight poverty and land degradation（图）
gum arabic land
2007/3/28
Rome, 5 March 2007 - With help from FAO, farmers in six sub-Saharan countries have been able to increase their income from the sale of gums and resins and to restore degraded land.