Fuzzy risk assessment modelling of East Kolkata Wetland Area: A remote sensing and GIS based approach

被引：51

作者：

Sarkar, Soma ^{[1
]}

Parihar, Seema M. ^{[2
]}

Dutta, Amitava ^{[3
]}

机构：

[1] Univ Delhi, Dept Geog, Delhi 110007, India

[2] Univ Delhi, Dept Geog, Kirori Mal Coll, Delhi 110007, India

[3] Indian Inst Remote Sensing, Alumni, Dehra Dun 248001, Uttar Pradesh, India

来源：

ENVIRONMENTAL MODELLING & SOFTWARE | 2016年 / 75卷

关键词：

East Kolkata Wetlands; Risk assessment; Fuzzy Inference System; Remote sensing and GIS; C-MEANS; LOGIC; CLASSIFICATION; VULNERABILITY; UNCERTAINTY; RESOURCE; SYSTEMS;

D O I：

10.1016/j.envsoft.2015.10.003

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

East Kolkata Wetland Area (EKWA), a Ramsar site, is suffering from long-term resource exploitation and land-use change. This paper presents a Fuzzy-based Risk Assessment Model (FRAM) using Remote Sensing and GIS tools to identify the areas with varying intensity of wetland conversion risk within EKWA. Model was developed through rule-based Fuzzy Inference System. 'Wetlands conversion rate', 'Canal proximity', 'Road proximity', 'Population density', 'Population growth rate', 'Infrastructure status', 'Livelihood status', and 'Social status' were the eight selected input indices for the model. The model was validated at two stages. For stage one, Fuzzy c-Means (FCM) classified satellite data for 2012 and 2014 were compared to detect the landuse change. In stage two, model relevance over thirteen study sites was studied through questionnaire-based field survey. It was found that FRAM has efficiently modelled and mapped the various levels of wetland risk zones of EICWA. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：105 / 118

页数：14

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