计数单位是指什么

百度 城市湿地公园及保护地带的重要地段不得设立开发区、度假区，禁止出租转让湿地资源，禁止建设污染环境、破坏生态的项目和设施，不得从事挖湖采沙、围湖造田、开荒取土等改变地貌和破坏环境、景观的活动。

  1987年，长城被联合国教科文组织列入《世界遗产名录》。2006年，《长城保护条例》正式施行。同年，石峡村长城保护协会成立，这是北京市第一个保护长城的农民组织。近20年来，人员几经变化，对长城的守护依然初心不改。大家轮番上阵，心里想的就是要守护好长城。于他们而言，守护长城，就是守护自己的家。

  In 1987, the Great Wall was inscribed on the UNESCO World Heritage List. In 2006, the Regulations on the Protection of the Great Wall went into effect. In the same year, Beijing established its first farmers' organization for Great Wall protection—the Great Wall Protection Association in Shixia Village. Over the past two decades, despite changes in the personnel, the initial commitment of the Association to safeguarding the Great Wall has remained unchanged. Taking turns to be Great Wall guardians, everyone in the Association is passionately driven by the shared goal. For them, guarding the Great Wall is actually guarding their own homeland.