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解惑“铜铜铜铜铜铜铜好大好深色板”-知识课堂

(身边的变化铜铜铜铜铜铜铜好大好深色板)甘肃庆阳生态治理由“沙进人退”向“绿进沙退”

来源: IT之家
2024-12-06 00:11:07

最佳回答

“铜铜铜铜铜铜铜好大好深色板”(身边的变化铜铜铜铜铜铜铜好大好深色板)甘肃庆阳生态治理由“沙进人退”向“绿进沙退”

  中新铜铜铜铜铜铜铜好大好深色板网兰州12月4日电 (铜铜铜铜铜铜铜好大好深色板戴文昌)4日,记者从甘肃省政府新闻办举行的新闻发布会上获悉,截至2023年底,甘肃庆阳市活立木蓄积量达到2332.4万立方米,森林覆盖率达到26.3%,草原综合植被盖度稳定在78%以上,北部毛乌素沙地南缘区域实现了由“沙进人退”向“绿进沙退”的历史性转变。

  庆阳地处黄河中游多沙粗沙区,是中国黄土地貌发育最为典型的地区,属黄河三级支流泾河流域,全市总面积2.7万平方公里,水土流失面积占总面积的85%,年入黄泥沙1.684亿吨,占黄河流域年入黄泥沙的1/10,甘肃省的1/3。严重的水土流失和严酷的自然环境,成为制约庆阳社会经济发展的重要瓶颈。

2020年9月14日,庆阳市环县梯田。(资料图)张永鑫 摄

  为持续改善区域生态环境,筑牢生态安全屏障、破解制约发展瓶颈。庆阳市副市长何英禅说,近年来,该市认真落实国家战略和甘肃省委、省政府决策部署,主动融入黄河流域“共同大保护、协同大治理”格局,全面推动黄河流域生态保护和高质量发展战略,取得了阶段性成效。

  近年来,庆阳市结合市情实际,区别地形地貌,采取严格保护与工程治理相结合的方式,由北向南分类施策。“双重”“三北”等国家重大工程,通过实施人工造林种草、封禁保护、退化草原治理等生态治理保护项目,着力构筑北部生态安全屏障。

  为推动黄河流域生态保护和高质量发展提供空间保障,甘肃省自然资源厅副厅长尚晓龙说,该厅对黄河流域涉及的9个市(州)划定生态保护红线面积4281万亩,科学统筹农业、生态、城镇空间,制定城镇开发边界管理实施细则,严控城镇开发边界无序扩张,守好黄河流域自然生态安全边界。

图为“三北”工程现场。 侯志雄 摄

  通过多年的努力和实践,在治理水土流失、筑牢生态安全屏障方面,庆阳市探索总结出固沟保塬“四道防线”,并在黄河流域水土治理工作中予以全面推广。何英禅说,该市建成的16条示范小流域工程、52处万亩梯田工程和8条坝系工程成为黄土高原地区样板工程,有效发挥了防洪减沙、淤地造田、灌溉养殖重要功能。

  截至2023年底,庆阳市累计治理保护塬面2393平方公里、新修梯田857万亩、建成淤地坝933座,水土流失面积降至11891平方公里,水土流失面积和强度持续呈现“双下降”,入黄泥沙减少至1亿吨以下。(完)

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