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Last modified by Emily West on 2022/02/08 09:30
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Emily West 1.1 1 = 3.2.1 BAF – BIOTOPE AREA FACTOR =
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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 Space|(% style="width:666px" %)3.2 Urban Space Development and Regeneration
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10 ====== **Description** ======
11 )))|(% style="width:730px" %)The BAF is calculated by dividing the amount of surface area available for nature and vegetation by the total surface area considered. Each type of soil / ground cover / land use is affected a coefficient related to its potential for vegetation growth & nature implementation (e.g. sealed surface = 0; semi-permeable = 0.3; green wall = 0.5; green roof = 0.7; in-ground plantations = 1). Thresholds and goals can then be determined based on the expected performance or current land use / urban planning objectives (e.g. the City of Berlin expects BAF to be produced for each new project – the result must be between 0.3 and 0.6, depending of the project’s nature). The BAF takes values between 0 and 1. It increases with in-ground planted areas.
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13 ===== **Scale as linked to D2.2 framework** =====
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15 * Neighborhood
16 * Street
17 * Household
18 * Object
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21 ====== **Data source [ link to data framework]** ======
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23 * Geodatabase of land use / land cover
Emily West 3.1 24 * Land use map
25 * Ground cover / surface materials
Emily West 1.1 26 )))
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28 ====== **Needs** ======
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Emily West 3.1 30 * ecologically-effective surface areas
31 * total land area
Emily West 1.1 32 )))
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34 ====== **Expected Outputs** ======
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36 * Quantitative
37 * Unit: %
38 * Could be mapped
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41 ====== **Calculation methods** ======
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43 * formula: BAF = ecologically-effective surface areas / total land area
44 * GIS
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47 ====== **Links and references** ======
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49 * Becker, G. M. R., & Mohren, R. (1990). The Biotope Area Factor as an Ecological Parameter. Landschaft Planen & Bauen, Berlin. Available: http:~/~/www. stadtentwicklung. berlin. de, 24.
50 * Liénard, S., & Clergeau, P. (2011). Trame Verte et Bleue: Utilisation des cartes d’occupation du sol pour une première approche qualitative de la biodiversité. Cybergeo: European Journal of Geography .
51 * Huang, P.-S., Tsai, S.-M., Lin, H.-C., Tso, I.-M., 2015. Do Biotope Area Factor values reflect ecological effectiveness of urban landscapes? A case study on university campuses in central Taiwan. Landsc. Urban Plan. 143, 143–149. doi:10.1016/j.landurbplan.2015.07.004
52 * Pao-Shen Huang, Su-Mei Tsai, Hui-Chen Lin, I-Min Tso, Do Biotope Area Factor values reflect ecological effectiveness of urban landscapes? A case study on university campuses in central Taiwan, In Landscape and Urban Planning, Volume 143, 2015, Pages 143-149, ISSN 0169-2046, https:~/~/doi.org/10.1016/j.landurbplan.2015.07.004. (http:~/~/www.sciencedirect.com/science/article/pii/S016920461500 1425)
53 * Taking biodiversity into account in local urban planning rules : a synthesis from the French Ministry for Housing and Territorial Equality (French) – (link
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