river beach短语¹⁴⁴⁹⁷²⁺² 基本例句 河滩 土壤害虫 Firstly, this paper introduced the general situation and discussed the applications of ecology, landscape ecology, ecological engineering to the planning of the Yellow River Beach in detailed. 本文首先介绍了研究区域的概况并详细论述了生态学、景观生态学、生态工程学在黄河滩地规划中的应用。 cnki