Article: A GIS-based green infrastructure planning framework for water sensitive spatial planning Journal: International Journal of Environment and Sustainable Development (IJESD) 2024 Vol.23 No.2/3 pp.208 - 230 Abstract: Green infrastructure (GI) as appropriately allocated land-uses in areas that are meant for inundation during intense rainfall, to encourage percolation and thereby reduce runoff is an important aspect of water-sensitive spatial planning. For tropical belts that combine high population density, rainfall, and landscape change due to rapid urbanisation, this is of paramount importance. The paper attempts to lay out an ecological planning framework for flood risk reduction through GI delineation. Multi-criteria decision analysis that takes into account meteorology, geology, geomorphology, surface-water hydrology, soils, and land-use land-cover patterns is being adopted. Physiographic division of river basin is considered the primary organising factor for the framework developed. The method is demonstrated using a typical watershed in Kerala that has witnessed a widespread loss of lives and property during subsequent floods. This framework will have applications in urban and regional planning, nature conservation fields, water-sensitive spatial planning, and climate change resilience planning. Inderscience Publishers - linking academia, business and industry through research

Title: A GIS-based green infrastructure planning framework for water sensitive spatial planning

Authors: Anju John; Anjana Bhagyanathan

Addresses: Department of Architecture and Planning, National Institute of Technology, Calicut, N.I.T. Campus (PO) – 673601, Kerala, India ' Department of Architecture and Planning, National Institute of Technology, Calicut, N.I.T. Campus (PO) – 673601, Kerala, India

Abstract: Green infrastructure (GI) as appropriately allocated land-uses in areas that are meant for inundation during intense rainfall, to encourage percolation and thereby reduce runoff is an important aspect of water-sensitive spatial planning. For tropical belts that combine high population density, rainfall, and landscape change due to rapid urbanisation, this is of paramount importance. The paper attempts to lay out an ecological planning framework for flood risk reduction through GI delineation. Multi-criteria decision analysis that takes into account meteorology, geology, geomorphology, surface-water hydrology, soils, and land-use land-cover patterns is being adopted. Physiographic division of river basin is considered the primary organising factor for the framework developed. The method is demonstrated using a typical watershed in Kerala that has witnessed a widespread loss of lives and property during subsequent floods. This framework will have applications in urban and regional planning, nature conservation fields, water-sensitive spatial planning, and climate change resilience planning.

Keywords: green infrastructure planning; water-sensitive spatial planning; site suitability analysis; multi-criteria decision analysis; land-use land-cover change; runoff characteristics; Kerala flood 2018; Chaliyar river basin.

DOI: 10.1504/IJESD.2024.137786

International Journal of Environment and Sustainable Development, 2024 Vol.23 No.2/3, pp.208 - 230

Received: 02 Aug 2022
Accepted: 03 Jan 2023
Published online: 05 Apr 2024 *

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Title: A GIS-based green infrastructure planning framework for water sensitive spatial planning

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