气候变化领域集成服务门户(CCPortal): A landscape approach to nitrogen cycling in urban lawns reveals the interaction between topography and human behaviors

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DOI	10.1007/s10533-020-00738-8
	A landscape approach to nitrogen cycling in urban lawns reveals the interaction between topography and human behaviors
	Suchy A.K.; Groffman P.M.; Band L.E.; Duncan J.M.; Gold A.J.; Grove J.M.; Locke D.H.; Templeton L.
发表日期	2021
ISSN	1682563
起始页码	73
结束页码	92
卷号	152 期号:1
英文摘要	Lawns are a common ecosystem type in human-dominated landscapes which can have negative impacts on water quality due to fertilizer applications, but also host a range of ecosystem services. While many studies have addressed water and nitrogen (N) dynamics in lawns, few have considered how topography interacts with human behaviors to control these dynamics. Our overarching objective was to determine if mesoscale topography (hillslopes within lawns) interacts with human behavior (fertilizer use) influencing patterns of N mobilization and removal in lawns. To that end, we measured several hydrobiogeochemical characteristics associated with N dynamics along topographic gradients in fertilized and unfertilized residential and institutional lawns. We found topographic gradients affect the hydrobiogeochemistry of lawns, with significant effects of landscape position (top versus toe slope versus bottomland swales), but with direction and strength of the effect often varying among different lawn types (exurban versus suburban front yards versus suburban backyards versus institutional). Fertilizer application did not affect the hydrobiogeochemical properties of lawns. Rather, results from this study suggest lawns in suburban front yards were at greatest risk of N mobilization due to a complex suite of characteristics including proximity to impervious surfaces, swales with low saturated infiltration rates, and potential vulnerability to N deposition from vehicles. This study highlights the need to consider landscape controls of water and N fluxes and how they interact with human behaviors to better understand how these landscapes function. These results contribute to the emerging understanding of the structure, function and environmental impacts of lawns. © 2021, The Author(s), under exclusive licence to Springer Nature Switzerland AG part of Springer Nature.
英文关键词	Denitrification; Nitrogen cycling; Residential lawns; Runoff; Topography
语种	英语
来源期刊	Biogeochemistry
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/184655
作者单位	Environmental Sciences Initiative, Advanced Science Research Center At The Graduate Center, City University of New York, 85 Saint Nicholas, Terrace, New York, NY 10031, United States; Cary Institute of Ecosystem Studies, 2801 Sharon Turnpike, Millbrook, NY 12545, United States; Department of Environmental Science, and Engineering Systems and Environment, University of Virginia, Charlottesville, VA 22904, United States; Department of Ecosystem Science and Management, Pennsylvania State University, University Park, PA 16802, United States; Department of Natural Resources Science, University of Rhode Island, Kingston, RI 02881, United States; USDA Forest Service, Northern Research Station, Baltimore Field Station, Suite 350, 5523 Research Park Drive, Baltimore, MD 21228, United States
推荐引用方式 GB/T 7714	Suchy A.K.,Groffman P.M.,Band L.E.,et al. A landscape approach to nitrogen cycling in urban lawns reveals the interaction between topography and human behaviors[J],2021,152(1).
APA	Suchy A.K..,Groffman P.M..,Band L.E..,Duncan J.M..,Gold A.J..,...&Templeton L..(2021).A landscape approach to nitrogen cycling in urban lawns reveals the interaction between topography and human behaviors.Biogeochemistry,152(1).
MLA	Suchy A.K.,et al."A landscape approach to nitrogen cycling in urban lawns reveals the interaction between topography and human behaviors".Biogeochemistry 152.1(2021).