Managed retreat: a nationwide study of the local, racially segmented resettlement of homeowners from rising flood risks
Managed retreat: a nationwide study of the local, racially segmented resettlement of homeowners from rising flood risks
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管理撤退：针对因洪水风险上升而对房主进行当地、按种族划分的重新安置的全国性研究
DOI：
10.1088/1748-9326/acd654
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发表时间：
2023
影响因子：
6.7
通讯作者：
Wang, Zheye
中科院分区：
文献类型：
--
作者：
Elliott, James R.;Wang, Zheye
政府资助的房主撤离洪水易发房屋是一项在全球范围内方兴未艾的气候适应政策。然而，我们仍然对涉及其参与者的一些相当基本的问题知之甚少：例如，房主在撤退之前能承受多大的风险？他们搬到哪里去了？这一举措是否会降低未来的洪水风险？而且，这些问题的答案在多大程度上因他们所生活的种族和民族社区的类型而异？为了回答这些问题，我们将联合收割机新颖的地址到地址的住宅历史数据与未来的洪水风险估计和当地环境指数相结合，以更好地了解撤退是如何在美国各地展开的。结果表明，自愿进行时，撤退是一个高度本地化的过程，产生显着减少家庭洪水风险。然而，这些运动是按种族划分的，白人占多数的社区的房主更有可能面临更高的风险，而不太可能搬迁到附近非白人占多数的地区。
The government-funded retreat of homeowners from flood-prone housing is a globally ascendant policy of climate adaptation. Yet, we still know relatively little about some fairly basic questions involving its participants: eg How much risk do homeowners tolerate before retreating? Where do they move? Does that move reduce their future flood risk? And, to what extent do answers to these questions vary by the type of racial and ethnic communities in which they live? To answer these questions, we combine novel address-to-address residential history data with future flood risk estimates and indices of local context to better understand how retreat is unfolding across the United States. Results indicate that, when voluntarily undertaken, retreat is a highly local process that yields notable reductions in household flood risk. These movements, however, are racially segmented, with homeowners in majority-White communities being more likely to stay in the face of higher risk and less likely to relocate to nearby areas that are not also majority-White.
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