In residential ecosystems, land management can help regulate climate and improve water quality by promoting the accumulation of nutrients in the soil. We tested how varying intensity of residential land use and management altered nutrient (Ca, K, Mg, P, S) pools. We studied soils and vegetation across twelve land use-intensity gradients (yards-perennial old fields-forests) established 15–227 y. ago in the native ecosystems of temperate forests. We found that yard soils were enriched with nutrients relative to fields and forests, regardless of recent yard management intensity. Yard soils from 0- to 40-cm depth contained an average 72–93% more Ca, 11–22% more Mg and 18–50% more P than fields and forests. In the upper 20 cm of soil, where land-use effects were pronounced, 200-year-old yards contained 24% more soil P than one decade-old yards. Yards where managers exported grass clippings for forty years contained less soil K and Mg than yards managed similarly for ten years. Yard soil cation exchange capacity and C were not correlated, suggesting the importance of inorganic mechanisms of nutrient accumulation. With more intense land use, across yards-fields-forests and within yards, soil S and C tightly covaried indicating these nutrients may limit or stimulate organic nutrient cycling. Our research suggests residential land management can contribute to nutrient legacies that support resilient responses to global change.

在居民生态系统中，土地管理可以通过促进土壤中养分的积累来帮助调节气候并改善水质。我们测试了住宅土地使用和管理强度的变化如何改变了养分（钙，钾，镁，磷，磷）池。我们研究了建立在15-227年之间的十二种土地利用强度梯度（院子-多年生老田-森林）的土壤和植被。以前是在温带森林的原生生态系统中 我们发现，无论最近的院子管理强度如何，相对于田地和森林，院子土壤都富含营养。与田地和森林相比，0至40厘米深度的围场土壤平均钙含量高72–93％，镁含量高11–22％，磷含量高18–50％。在上部20 cm的土壤上，土地利用效应明显，其中200年历史的院子比10年历史的院子含有更多的24％的土壤磷。管理者出口草屑40年的院子中的土壤K和Mg比十年来同样管理的院子少。院子土壤阳离子交换能力与碳含量不相关，表明养分积累的无机机制很重要。随着土地利用的加剧，在院子，田地，森林和院子内，土壤S和C紧密协变，表明这些养分可能会限制或刺激有机养分循环。我们的研究表明，住宅土地管理可以促进养分遗产的发展，从而支持对全球变化的弹性应对。随着土地利用的加剧，在院子，田地，森林和院子内，土壤S和C紧密协变，表明这些养分可能会限制或刺激有机养分循环。我们的研究表明，住宅土地管理可以促进养分遗产的发展，从而支持对全球变化的适应性应对。随着土地利用的加剧，在院子，田地，森林和院子内，土壤S和C紧密协变，表明这些养分可能会限制或刺激有机养分循环。我们的研究表明，住宅土地管理可以促进养分遗产的发展，从而支持对全球变化的弹性应对。