绿洲景观
Oasis landscape ecosystem has the biggest landscape diversity, desert landscape ecosystem has the smallest landscape diversity and maximum landscape diversity;
绿洲景观生态系统的景观多样性指数最大,其次为山地景观生态系统,荒漠景观生态系统由4种景观组分组成,其最大景观多样性指数和景观多样性指数最小;
Cultivated land dominated in plant production should be utilized with more productive layers through developing animal production other than expanding used area to maintain the landscape heterogeneity and diversity of the oasis landscape ecosystem.
耕地以植物生产为主,在利用上应增加生产层次,发展动物生产,避免扩大面积,以维持景观生态系统的景观异质性和景观多样性。
英语网 · 少儿英语故事
英语网 · 双语娱乐资讯
英语网 · 高考英语
英语网 · 双语新闻