Impact of pineapple industry on the utilisable water resource of proximal catchment: a GMDH Approach

Authors : Amarjit Sahu* and Mrinmoy Majumder**

*Amarjit Sahu, Research Scholar, Civil Engg Dept, National Institute of Technology Agartala, Tripura, India

**Mrinmoy Majumder, Associate Professor, Civil Engg Dept, National Institute of Technology Agartala, Tripura, India

Abstract

The pineapple industry is a crucial pillar of Tripura's agricultural sector, significantly contributing to its economic prosperity. Tripura is one of the largest pineapple producers in India, known for its unique varieties and favourable climate. Pineapple cultivation in Tripura not only provides employment for local farmers but also boosts the state economy,promoting agricultural growth and sustainable development. Introduced by the British during the colonial era, the industry has grown substantially, diversifying the agricultural sector and reducing dependency on traditional crops, leading to a more resilient economy. This study examines the relationship between pineapple cultivation and water resources in Tripura, focusing on Anaras Bagan in Agartala and Nalkata in the Dhalai district. Various new tools and methods, including the GMDH approach, are used to analyze the impact of the pineapple industry on the water resources of adjacent catchments. The study scrutinizes groundwater availability and quality, surface water quality, and broader hydrological dynamics to discern the industry's influence. Groundwater, essential for agricultural sustainability, is thoroughly assessed for depletion or modification due to pineapple cultivation. The study evaluates both groundwater and surface water quality using the Water Quality Index (WQI) to quantify the overall status and identify areas needing remedial action. Additionally, the balance between water availability and demand for pineapple cultivation is considered, with available water storage totalling 7477.52 MCM and an annual water demand of 2388.37 MCM, resulting in a ratio of 3.13.Slope assessments and contour mapping using Surfer mapping software provide insights into the topography of the study areas. However, the pineapple industry in Tripura faces challenges such as pests and diseases, inadequate transportation and marketing infrastructure, competition from other regions, poor water quality, and water scarcity affecting neighbouring areas, all hindering its growth and sustainability.

Keywords

pineapple industry, surface water, water availability