accordingly , we raised the 3rd level kind , example 2 class kind natural meadowy differentiate in the 3rd class for natural meadowy and degrade natural meadowy two group .因此，我们增加了第三级类，例如将二级类的天然牧草地在第三级划分为天然牧草地和退化天然牧草地两个小类。
+meadowy land
1 . 牧场草坪
469 开花草坪 flowering lawn470 牧场草坪meadowy land471 花坛 flower bed
