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2000年,北京市开始建设“第一个绿化隔离带”,它的建设对北京的绿化起到了良好的、显著的作用。遗憾的是,这个绿化隔离带在建设和维护过程中,出现了不少问题,最为明显的是绿地设计缺乏生态常识、绿地建设对土壤结构破坏大、绿地树种和草种使用不合理、绿地养护耗水高、绿地降尘调温效果差等,因此给环境带来的正效应不明显,负担却不小,可持续性差。规划的愿望与建成的效果出现了如此大的差距,主要的症结在哪里?目前,正值北京建设第二道绿化隔离带,我们又应该从以往的国内外的绿化建设中吸取哪些经验与教训呢?
In 2000, Beijing started building the “first green belt” and its construction has played a good and significant role in the afforestation of Beijing. Unfortunately, many problems have arisen during the construction and maintenance of this green belt. Most notable is the lack of ecological common sense in the design of green land. The construction of green land has greatly damaged the soil structure. The use of green tree species and grass species is irrational. Green land conservation High water consumption and poor effect of dust control and temperature control in the green space. Therefore, the positive effect brought to the environment is not obvious, the burden is not small, and the sustainability is poor. At present, just as Beijing built the second greenery isolation zone, what lessons should we learn from the past greening projects at home and abroad? What?