Spatial asynchrony in environmental and economic benefits of stream restoration

Spatial asynchrony in environmental and economic benefits of stream restoration
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河流恢复的环境和经济效益的空间异步性

DOI:
10.1088/1748-9326/ac61c6
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发表时间:
2022
影响因子:
6.7
通讯作者:
Band, Lawrence
Band, Lawrence
中科院分区:
环境科学与生态学2区
文献类型:
--
作者:
Zhang, Ruoyu;Newburn, David;Rosenberg, Andrew;Lin, Laurence;Groffman, Peter;Duncan, Jonathan;Band, Lawrence

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河流恢复广泛用于缓解城市河道的退化、保护基础设施以及减少受纳水体的沉积物和养分负荷。稳定和恢复河岸地区还可以提供休闲机会和便利设施,并提高附近居民的生活质量。在该项目中,我们针对巴尔的摩都市区三个主要流域的所有低阶河流河段制定了河流恢复的环境效益(潜在的硝酸盐负荷减少,切萨皮克湾流域的优先事项)和经济效益(家庭支付意愿,WTP)指数。我们发现这些好处的空间异步性,使得它们的空间模式呈负相关。人口稠密的城市、不太富裕的社区的河流恢复具有较高的支付意愿,但硝酸盐负荷减少的潜力较低,而郊区和远郊的富裕社区则具有相反的趋势。空间异步性给决策者带来了平衡河流恢复计划的经济效率、社会公平和具体环境目标的挑战。
Stream restoration is widely used to mitigate the degradation of urban stream channels, protect infrastructure, and reduce sediment and nutrient loadings to receiving waterbodies. Stabilizing and revegetating riparian areas can also provide recreational opportunities and amenities, and improve quality of life for nearby residents. In this project, we developed indices of an environmental benefit (potential nitrate load reduction, a priority in the Chesapeake Bay watershed) and economic benefit (household willingness to pay, WTP) of stream restoration for all low order stream reaches in three main watersheds in the Baltimore metro region. We found spatial asynchrony of these benefits such that their spatial patterns were negatively correlated. Stream restoration in denser urban, less wealthy neighborhoods have high WTP, but low potential nitrate load reduction, while suburban and exurban, wealthy neighborhoods have the reverse trend. The spatial asynchrony raises challenges for decision makers to balance economic efficiency, social equity, and specific environmental goals of stream restoration programs.
家庭愿意为私人和公共土地上的河流修复付费:来自巴尔的摩大都市区的证据
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