Abstract Research increasingly shows that greening activity can spur contagious or imitative behavior among nearby neighbors within residential landscapes. Krusky et al. (2015) examined this phenomenon in the context of vacant lots and found support for a “greening hypothesis” that residential yards near vacant lots that were converted to community gardens exhibited higher levels of care than yards near untended vacant lots. Although such activity implies a temporal, causal relationship, research to date has only tested the spatial dimension of greening through correlational measures of proximity assessed at one point in time. We extend this work by analyzing vacant lot greening as a function of time, space, scale of analysis, and other factors. We studied residential property owners (N = 321) who purchased nearby city-owned vacant lots through the Chicago Large Lot Program. Improvements made in the condition and care of large lots in the year after purchase were positively related to the proximity, condition and care of the individual’s previously owned property, and signs of use and care of the lot before purchase (blotting). We also examined whether block-level indicators of care and disorder were associated with improvements made to lots purchased on the block. We found few associations but discovered these same block-level indicators of care and disorder more strongly predicted the percent of large lots sold on that block, suggesting that greening activity may be bidirectional. These findings expand understanding of the dynamics of vacant lot stewardship and have implications for building more robust theories of urban greening.

中文翻译：

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超越邻近​​：在空地管理的背景下扩展“绿化假设”

摘要 越来越多的研究表明，绿化活动可以激发住宅景观中附近邻居之间的传染性或模仿行为。克鲁斯基等人。（2015 年）在空地的背景下研究了这种现象，并发现了对“绿化假说”的支持，即空地附近的住宅庭院被转换为社区花园，比无人照管的空地附近的庭院表现出更高的护理水平。尽管此类活动暗示了一种时间的因果关系，但迄今为止的研究仅通过在某个时间点评估的邻近度的相关测量来测试绿化的空间维度。我们通过分析空地绿化作为时间、空间、分析规模和其他因素的函数来扩展这项工作。我们研究了通过芝加哥大地块计划购买附近城市拥有的空地的住宅业主 (N = 321)。购买后一年中大地块的状况和护理的改善与个人以前拥有的财产的接近度、状况和护理以及购买前地段的使用和护理迹象（印迹）呈正相关。我们还检查了街区级别的护理和障碍指标是否与对该街区购买的批次进行的改进有关。我们发现很少有关联，但发现这些相同的街区级别的护理和混乱指标更能有力地预测该街区出售的大宗商品的百分比，这表明绿化活动可能是双向的。