本地纯净下载
纯净官方版12博网站近十年,内蒙古全区累计造林、种草、防沙治沙规模均居全国首位,草原植被盖度由40.3%提高到45%,荒漠化和沙化土地减少6000多万亩,实现了从“沙进人退”到“绿进沙退”的历史性转变。。
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