Model of the linkage between land cover changes to water discharge and food productivity: The case of the Konaweha watershed in Indonesia
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Published:2023
Issue:2
Volume:73
Page:169-185
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ISSN:0350-7599
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Container-title:Journal of the Geographical Institute Jovan Cvijic, SASA
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language:en
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Short-container-title:J GEOGR INST CVIJIC
Author:
Jasman J1, Syarif Muh2, Juharsah J2, Sukri Ahmad3, Ngii Edward3, Hasddin H4
Affiliation:
1. Lakidende University, Faculty of Engineering, Department of Civil Engineering, Unaaha, Indonesia 2. Halu Oleo University, Faculty of Economics and Business, Department of Management, Kendari, Indonesia 3. Halu Oleo University, Faculty of Engineering, Department of Civil Engineering, Kendari, Indonesia 4. Lakidende University, Faculty of Engineering, Department of Urban and Regional Planning, Unaaha, Indonesia
Abstract
Changes in watershed land cover have an impact on reducing water discharge,
as well as other derivative impacts such as the productivity of food crops,
horticulture, and plantations. This study tries to offer a conceptual model
of the effect of changes in watershed land cover, water discharge, and food
productivity through food crops, horticultural crops, and plantation crops.
This study uses a quantitative approach based on time series data between
2002 and 2021. Data is analyzed using a structural model approach with
SEM-SmartPLS software. As a result, changes in land cover have a significant
effect on water discharge, but they have no effect on food productivity.
Water discharge has a significant effect on food production, and changes in
land cover greatly affect food productivity through the role of intermediary
variables (mediation) of water discharge. In 2041, changes in land cover can
reduce water discharge by around 47.9%. Then the water discharge is
estimated to have an impact on the productivity of food crops by 62.3%,
vegetable productivity by around 45.7%, and plantation crop productivity by
around 72.7%.
Publisher
National Library of Serbia
Subject
Geology,Geography, Planning and Development,Earth-Surface Processes,Demography,Tourism, Leisure and Hospitality Management
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