3-30-300规则为城市提供了促进公平自然准入的基准。它规定个人应该从他们的住所中看到三棵树,他们附近有30%的树冠,并居住在高质量绿地的300米范围内。实施这一点需要彻底的测量,监测,和评估方法,然而,目前很少有指导来采取这些行动。为了克服这个差距,我们采用了以专家为基础的共识方法来审查测量3-30-300的可用方法以及每种测量的优缺点。我们描述了七个相关的数据和过程:植被指数,街道层面的分析,树库存,问卷,窗口视图分析,土地覆盖图,和绿色空间地图。根据审查的每一项措施的优缺点,我们提出了一个适用性矩阵,将推荐的措施与规则的每个组成部分联系起来。这些建议包括对\'3组件\'的调查和窗口视图分析,“30分量”的高分辨率土地覆盖图,和绿色空间地图,带有“300组件”的网络分析。这些方法,响应当地情况和资源,不仅执行3-30-300规则,而且促进就当地愿望和要求进行更广泛的对话。因此,这些技术可以指导对城市绿化健康的战略投资,股本,生物多样性,和气候适应。
The 3-30-300 rule offers benchmarks for cities to promote equitable nature access. It dictates that individuals should see three trees from their dwelling, have 30 % tree canopy in their neighborhood, and live within 300 m of a high-quality green space. Implementing this demands thorough measurement, monitoring, and evaluation methods, yet little guidance is currently available to pursue these actions. To overcome this gap, we employed an expert-based consensus approach to review the available ways to measure 3-30-300 as well as each measure\'s strengths and weaknesses. We described seven relevant data and processes: vegetation indices, street level analyses, tree inventories, questionnaires, window view analyses, land cover maps, and green space maps. Based on the reviewed strengths and weaknesses of each measure, we presented a suitability matrix to link recommended measures with each component of the rule. These recommendations included surveys and window-view analyses for the \'3 component\', high-resolution land cover maps for the \'30 component\', and green space maps with network analyses for the \'300 component\'. These methods, responsive to local situations and resources, not only implement the 3-30-300 rule but foster broader dialogue on local desires and requirements. Consequently, these techniques can guide strategic investments in urban greening for health, equity, biodiversity, and climate adaptation.