7月24日，村民在宁夏固原市长城梁生态林业示范园整理花卉。长城梁位于宁夏固原市北部，因受风雨侵蚀，植被稀少，生态脆弱。为改变长城梁的生态面貌，固原市从2009年开始实施长城梁生态林业示范园工程。一期工程实施三年多以来，已建设生态景观林1.2万亩，建成日光温室13栋，智能连栋温室2栋。新华社记者 李然 摄     July 24，The villagers in ningxia guyuan city wall beam of ecological forestry demonstration garden flowers arrangement。The Great Wall is located in the northern city of ningxia guyuan beam，By the rain，Vegetation scarce，Ecological fragile。To change the Great Wall beam ecological face，Guyuan city from 2009 to and the Great Wall beam implementation of ecological forestry demonstration project。A phase of the project implementation since more than three years，Already the construction of ecological landscape Lin 12000 mu，Build solar greenhouse and building，Intelligent even 2 house in greenhouse。The xinhua news agency LiRan perturbation