It is of important significance for preserving precious species resource in sandy land to strengthen the protection of natural forest and set up natural protection area.
加强天然林保护,建立自然保护区,对保存珍贵的沙地物种资源具有重要意义。
For the protection of arable land resource, it's necessary to explore the motive mechanism of arable land turned to construction land.
为有效保护有限的耕地资源,探讨耕地非农化的动力机制就显得尤为必要。
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