3、n 灭绝 (ß extinct)species endangered speciesdrought 干旱 >>> famine v.s. floodingrecurrent 反复发生的re + (oc)cur + rentv.s. concurrentinundate 淹没 embankment 筑堤 (em + bank + ment)sediment 沉积(物)= depositdelta 三角洲the Pearl River Deltaalluvial 冲积的desertification 沙漠化ß desert (v.s. d
4、essert)dust-storm 沙尘暴^ thunderstorm, brainstormbarren 贫瘠的,不育的,无效的attributable 归因于be attributable to…deforestation 滥砍滥伐(森林)de + forest + ation<> afforestation造林/reforestationlog 原木,日志 伐木v.s. logovegetation 植物,植被v.s. vegetable, vegetarianhabitat 栖息地ß habit (Habit is the second n
5、ature.)ecosystem 生态系统 (eco + system)~ ecologyviability ß viable “vi”: life养育能力One tool for assessing the impact of forestry on the ecosystem is population viability analysis.demographic 人口统计的 demo(people) + graph(write) + icinterdependence: inter + dependencecounterbalance 使平