Urbanisation Effect on Hydrological Response: A Case Study of Asan River Watershed, India

Human being keeps on modifying the environment especially land use/land cover (LULC), in pursuance of excel, comfort and development. The subsequent impact of urbanization to the environment, especially land cover change, now occurs on scales that significantly affect hydrologic variations. The altering environment makes it necessary to understand and quantify various hydrological components for efficient water resource management. Therefore, in the present study, an attempt was  made to study the impact of LULC change on runoff generation potential. Asan River watershed, which lies in Dehradun, capital of newly created Uttarakhand State, India, is selected as study region. A huge industrialization is been taken place within this watershed immediately after declaration of state in year 2000. Initially, LULC change detection analysis was carried out by simple LULC class area difference between two years under consideration i.e. 2000 and 2010. The hydrological simulation using variable infiltration capacity macro-scale hydrological model depicted increase in runoff after urbanization took place. Keywords: Land use land cover change, Urbanization, Impact assessment, hydrological modeling, variable infiltration capacity model, runoff potentia

Development of gis and database program on website for concerned government office for environmental management under pes and biocarbon concepts

This study aims to develop GIS and database program for ecosystem services management, environmental management and policy planning for natural conservation in the representative areas under the Integrated Community-based Forest and Catchment Management through an Ecosystem Services Approach project (CBFCM) by using Payment for Ecosystem Services (PES) and Biological storage of carbon (BioCarbon) concepts. At first, the concerned data were collected by brainstorming of the needs of GIS and database program with staffs from 4 pilot areas in Thailand: Mae Sa watershed area in Chiang Mai, Lam Sae Bai River Basin in Ubon Ratchathani, Tha Chin watershed area in Samut Sakhon and Phangan River Basin in Surat Thani. Then, the situations and variables which affect to natural resources were analysed. Secondly, GIS and database program were designed and developed. However, the program can be divided into 3 sub-programs for different proposes which are; (1) to enhance coordinated and follow-up performance of change of PES and Bio-carbon concept, (2) to increase communication and training for delegate areas to understand about PES and BioCarbon concept and (3) to collect and manage data and information for representative areas