In brief introduction Neijiang-Kunming railway construction significance and its along the route grass sea nature protection area survey as well as protection take black neck crane as representative's rare and precious birds' vital significance.
In brief introduction Neijiang-Kunming railway construction significance and its along the route grass sea nature protection area survey as well as protection take black neck crane as representative's rare and precious birds' vital significance.
摘要简要介绍内昆铁路的建设意义及其沿线草海自然保护区的概况以及保护以黑颈鹤为代表的珍稀鸟类的重要意义。