A multi-city comparison of front and backyard differences in plant species diversity and nitrogen cycling in residential landscapes
A multi-city comparison of front and backyard differences in plant species diversity and nitrogen cycling in residential landscapes
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住宅景观中植物物种多样性和氮循环前后院差异的多城市比较
DOI：
10.1016/j.landurbplan.2018.05.030
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发表时间：
2018
影响因子：
9.1
通讯作者：
Groffman, Peter M.
中科院分区：
文献类型：
--
作者：
Locke, Dexter H.;Avolio, Meghan;Trammell, Tara L.E.;Roy Chowdhury, Rinku;Morgan Grove, J.;Rogan, John;Martin, Deborah G.;Bettez, Neil;Cavender-Bares, Jeannine;Groffman, Peter M.
我们假设，较低的公众知名度的住宅后院减少家庭的愿望，社会整合，这改变了住宅土地管理，并产生差异的生态组成和功能之间的前，后院。使用草坪植被样地（7个城市）和土壤芯（6个城市），我们研究植物物种丰富度和均匀度和草坪的氮循环在波士顿，巴尔的摩，迈阿密，明尼阿波利斯-圣保罗，凤凰城，洛杉矶（LA），和湖城（SLC）。比较了7种土壤氮素措施，因为不同的灌溉和施肥措施可能会改变前和后院之间，这可能会改变土壤中的氮循环。除了草坪的测量，我们收集和分析了整个庭院的植物物种丰富度-种植（有意种植）和自发（自我再生）-仅在两个城市的前院和后院：洛杉矶和SLC。在我们的多城市比较中，草坪植物种类和土壤在前院和后院之间没有差异。然而，整个院子里的植物分析在洛杉矶和SLC显示，无论是栽培和自发的物种，前院有显着少于后院的物种。这些结果表明，有必要对潜在的住宅，家庭行为及其生态后果进行更丰富和社会生态细致入微的了解。
We hypothesize that lower public visibility of residential backyards reduces households’ desire for social conformity, which alters residential land management and produces differences in ecological composition and function between front and backyards. Using lawn vegetation plots (7 cities) and soil cores (6 cities), we examine plant species richness and evenness and nitrogen cycling of lawns in Boston, Baltimore, Miami, Minneapolis-St. Paul, Phoenix, Los Angeles (LA), and Salt Lake City (SLC). Seven soil nitrogen measures were compared because different irrigation and fertilization practices may vary between front and backyards, which may alter nitrogen cycling in soils. In addition to lawn-only measurements, we collected and analyzed plant species richness for entire yards—cultivated (intentionally planted) and spontaneous (self-regenerating)—for front and backyards in just two cities: LA and SLC. Lawn plant species and soils were not different between front and backyards in our multi-city comparisons. However, entire-yard plant analyses in LA and SLC revealed that frontyards had significantly fewer species than backyards for both cultivated and spontaneous species. These results suggest that there is a need for a more rich and social-ecologically nuanced understanding of potential residential, household behaviors and their ecological consequences.
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