To enclose tideland for cultivation can not only solve some problems of tidelands but also make use of the advantages of reclamation to develop cultivated land and aquatic breeding, andto realize dynamic equilibrium of cultivated land area.

• 滩涂围垦既可解决目前一些滩涂存在的问题，又可利用围垦开发耕地和发展水产养殖业等，保证耕地面积动态平衡目标的实现。