谁能帮我翻译一下下面这句话，顺便分析一下它的结构，谢谢啦~~

Question

Therefore, determining the trend and the rate of land cover conversion are necessary for the development planner in order to establish rational land use policy.

Answer 1

因此,确定趋势和土地覆被率转换是必要的,为发展计划以制定合理的土地使用政策。
结构不太懂 望采纳谢谢哈 by谭