ecosystems相关论文
Task 1 （2019·全国乙卷）Every year about 40，000 people attempt to climb Kilimanjaro， the highest mountain in Africa. They ......
辽宁省阜新地区东北部有一片广阔的沼泽湿地区域,富有含多种动植物区系群的植被类型 .然而,由于多年的河流改道、气候干燥使得原始......
Ecology is not a very “old” science,with about one hundred years of history.In the early period,the general attitude w......
美国学者詹姆士·穆尔(James F.Moore)1993年存首次提出了“商业生态系统(Business Ecosystems)”的概念,打破了传统的以行业划分......
The Arctic hosts an extraordinary wealth of terrestrial fossil biotas of Late Cretaceous age representing a diverse and ......
为了寻求有效的草地生物量估算方法和精确估计荒漠草原草地生物量及其变化规律，该文探讨了利用全极化RADARSAT-2 C波段雷达数据和HJ......
