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Last modified by Emily West on 2022/02/08 09:43
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edited by Emily West
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1 +3.2.2 CGS - Connectivity of Green Spaces
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1 +5\. Metrics and KPIs.Metric and Key Performance Indicators.WebHome
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1 += 3.2.2 CGS - Connectivity of Green Spaces =
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4 +(% class="table-bordered" %)
5 +|=(% style="width: 79px;" %)Topic|=(% style="width: 139px;" %)Urban challenges|=(% style="width: 666px;" %)Sub-challenges
6 +|(% style="width:79px" %)Environment|(% style="width:139px" %)3 - Biodiversity and Urban Spaces|(% style="width:666px" %)3.2 - Urban Space Development and Regeneration
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10 +====== **Description** ======
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12 +This indicator enables to assess natural habitats best connected to each other on the study area. It takes into account the fragmentation of the habitat. Thus, this indicator will help to know where to focus efforts, where to improve the connectivity (where it is the lowest) and where to maintain green spaces in priority (where connectivity is the highest because these areas are more favourable to species) → decision-making tool. The efforts to be made will depend on the objectives of each city.
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14 +[[image:1641805952858-145.png||height="153" width="301"]]
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17 +====== **Scale as linked to D2.2 framework** ======
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19 +* City
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21 +|(% style="width:211px" %)(((
22 +====== **Data source [ link to data framework]** ======
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24 +* Corine Land Cover
25 +* National databases (ex. Urban Atlas (only for big cities) ; OSGE in France…) ; BD TOPO
26 +* Local spatial databases / green cadastre
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28 +|(% style="width:211px" %)(((
29 +====== **Data Needs** ======
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31 +* polygon area of green space
32 +* Distance to other green spaces
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34 +|(% style="width:211px" %)(((
35 +====== **Expected Outputs** ======
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37 +* Connectivity from 1 (very low) to 5 (very high)
38 +* Quantitative
39 +* Maps
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41 +|(% style="width:211px" %)(((
42 +====== **Calculation methods** ======
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44 +* GIS analysis
45 +* Formula:
46 +** Buffer (polygon i) = sqrt (Areapolygon i/π)
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48 +|(% style="width:211px" %)(((
49 +====== **Links and references** ======
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51 +* AUAT. (2015). Pour une approche globale du fonctionnement écologique potentiel des territoires, 8.
52 +* Direction Régionale de l’Environnement Nord-Pas-de-Calais. (2008). Analyse des potentialités écologiques du territoire régional, 66.
53 +* Greet Ingenierie, & Conservatoire Botanique National de Bailleul. (2008). Actualisation de l’inventaire des sites d’intérêt écologique de l’arrondissement de Lille, 33
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