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2026 (Volume 116)

Volume 112 Issue 3

Class-Gated Spatial Prioritization for Multifunctional Green Infrastructure in Southeast Michigan

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1Department of Environmental Planning Pacific Research University Canada
2Department of Environmental Design Coastal Research University United States

The application of multifunctional green-infrastructure planning calls for more than the use of a ranked map. A priority value is useful when its class-gating threshold, spatial scale, weights and implementation context are properly interpreted together. In this research, an approach to class-gate the prioritization of green-infrastructure evidence into practical actions in Southeast Michigan was designed. Six criteria were considered at a common 30 m spatial scale where possible: stormwater management, social vulnerability, green space access, summer land surface temperature, PM2.5 and ozone air quality, and habitat connectivity. In addition, evidence related to planting priorities was considered for Detroit and property-based conservation evidence for Washtenaw County. At the regional level, there was a high priority band starting at 5.05 in the 0–7.77 range which can be used in metropolitan coordination. At the urban level, the high priority band started at 6.87 in the 0–7.91 range which would identify first-review planting priorities in the urban area. For conservation, Washtenaw County had a priority weighting scheme with the weights of stormwater management, habitat connectivity, air quality, and heat being 25%, and social vulnerability and access to green space being 10%. The top properties varied in the different categories: Lambuth Farms and Conservation Easement–Northfield Twp–01 were the best in the category of conservation easements; Meadows Preserve and Northfield Woods Preserve were the best in the preserved recreation lands; while Newman, Morehouse 1, and Morehouse 2 were the best in the category of inactive nominations.

Agro-Urban Coupling Efficiency in Gandhinagar District, Gujarat: Agricultural Retention, Settlement Absorption and Transition Exposure

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1The University of Sheffield

Planned capital districts are normally characterized using the growth rate of the administrative city, but the persistence of their land system can be determined based on the reaction of surrounding villages, industrial fringes, cultivated lands, scrublands and water channels. Gandhinagar district of Gujarat State is studied using the Agro-Urban Coupling Efficiency Audit framework to test if low urban growth comes with efficient agricultural retention. Land cover accounting uses nine classes of data in 1995, 2003, 2010, 2016 and 2025 with accuracy of classification of data for 2016, 2016-2025 transition probabilities and driver association coefficients. Built up urban, built up rural and other built up land categories are considered together in the settlement absorption category and compared to agriculture, bare land and semi natural water. Agricultural land area decreases from 1825.36 km2 in 1995 to 1730.49 km2 in 2016 and to 1676.70 km2 in 2025. The constructed land increases from 120.13 km2 to 218.99 km2 between 1995-2016 and grows to 255.68 km2 in 2025. The cost of agriculture retention increases drastically because 0.96 km2 of agricultural land change to every 1 square kilometre of constructed land gain between 1995-2016 and 1.47 km2 during 2016-2025. The transitions occur mainly in agriculture and scrublands with 53.99 km2 and 20.71 km2 expected to leave their 2016 class designation. Driver analysis reveals that proximity to urban centre is first and elevation, river/canal distance and slope still highly correlated. Gandhinagar low urban growth implies that the district is undergoing transformation at an earlier stage and agricultural retention needs intervention.

Call for Papers

Landscape Architecture invites submissions for Volume 2026, Issue 3, scheduled for publication in September 2026. The journal welcomes high-quality scholarly contributions that advance research, theory, criticism, and applied knowledge in landscape architecture and related fields.

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