scholarly journals The analysis of clean water demand for land use optimization based on water resource balance in Balikpapan city

Author(s):  
Achmad Ghozali ◽  
Rossana Margaret Kadar Yanti
2020 ◽  
Vol 1000 (1000) ◽  
Author(s):  
Aderita Mariana Takeleb ◽  
Joko Sujono ◽  
Rachmad Jayadi

Water shortages has an impact on all aspects of life in Dili, Timor Leste. To support the government vision and program in water sector, a study on the developing of water resource management strategies has been carried out. The priority strategy has resulted that is developing water resource infrastructure to meet urban water demand. One action plan of this strategy is to build reservoir infrastructure. The purpose of this study is to evaluate the construction of small or large reservoir to meet the water demand in Dili. Evaluation of the strategy implementation plan of the reservoirs development in the Beemos and Becora Rivers through analysis of the reliability and capacity of the reservoir using a simulation model of water release standard operating rules method. Water balance simulation results show that the reliability of clean water services from the two small reservoirs of Beemos and Becora cannot reach 100%, due to the limited capacity of the reservoir. The results of capacity optimization of large Beemos Reservoir show that the potential for inflow can be utilized 90%, therefore it can meet urban water demand until 2030. Although the simulation results show a good indication, the government still must carry out a detailed feasibility study in the upstream area before it is implemented. The developing of large reservoir can be recommended for implemented in the development of water resources to meet water demand in Dili therefore can support the Timor Leste's targets or vision in the water sector and the Sustainable Development Goals in the clean water and sanitation sector.


Land ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 1297
Author(s):  
Ying Xu ◽  
Lei Yao

Land use plays a crucial role in climate change adaptation and mitigation, as the reasonable design of land use distribution can positively impact these things. Therefore, research interest in climate change adaptation and mitigation strategies in land use and management has been growing. However, the adaptation and mitigation strategies have been handled separately at different dimensions and spatial levels. In this study, we presented a modeling framework for land use optimization that integrates climate change adaptation and mitigation, developed the model, and then applied it to Huailai County, wherein environmental and socioeconomic conditions are sensitive to climate change. The regional land use optimization model was combined with a linear programming model and a modified cellular automata model. Subsequently, the climate change adaptation and mitigation constraints, including ecological water demand, spatial suitability, and carbon sequestration, were incorporated into the model. The results indicate that most regions in the study area could adapt to and mitigate climate change with a constant land use pattern, and the land use conversion region under different climate change scenarios was primarily located in the topography transition region. The optimization results also reveal trade-offs between climate change adaptation and mitigation that were manifested with an increase in carbon sequestration and ecological water demand accompanied by decreases in the net income of agricultural production. Thus, it is necessary to simultaneously incorporate climate change adaptation and mitigation into land use optimization and management, and the proposed model provides a feasible method to incorporate them and balance their trade-offs in land use pattern optimization at a regional scale.


Water Policy ◽  
2020 ◽  
Vol 22 (6) ◽  
pp. 961-971
Author(s):  
Manuel Argamasilla-Ruiz ◽  
Stephen Foster ◽  
Bartolome Andreo-Navarro

Abstract The Costa del Sol, in common with many Mediterranean (and similar) coastal areas, is having to face increasing water-resource stress as a result of global warming and land-use change, coupled with extremely high peak water demand resulting from large tourist numbers and summer climatic factors. An assessment is presented of current water-supply provision, possible measures to enhance the resilience of the water-supply system (focusing on improved use of groundwater storage), and the institutional challenges confronting their implementation.


Water ◽  
2021 ◽  
Vol 13 (9) ◽  
pp. 1259
Author(s):  
Rei Itsukushima

Increasing water demand due to population growth, economic development, and changes in rainfall patterns due to climate change are likely to alter the duration and magnitude of droughts. Understanding the relationship between low-flow conditions and controlling factors relative to the magnitude of a drought is important for establishing sustainable water resource management based on changes in future drought risk. This study demonstrates the relationship between low-flow and controlling factors under different severities of drought. I calculated the drought runoff coefficient for six types of occurrence probability, using past observation data of annual total discharge and precipitation in the Japanese archipelago, where multiple climate zones exist. Furthermore, I investigated the pattern of change in the drought runoff coefficient in accordance with the probability of occurrence of drought, and relationships among the coefficient and geological, land use, and topographical factors. The drought runoff coefficient for multiple drought magnitudes exhibited three behaviors, corresponding to the pattern of precipitation. Results from a generalized linear model (GLM) revealed that the controlling factors differed depending on the magnitude of the drought. During high-frequency droughts, the drought runoff coefficient was influenced by geological and vegetation factors, whereas land use and topographical factors influenced the drought runoff coefficient during low-frequency droughts. These differences were caused by differences in runoff, which dominated stream discharge, depending on the magnitude of the drought. Therefore, for effective water resource management, estimation of the volume of drought runoff needs to consider the pattern of precipitation, geology, land use, and topography.


Author(s):  
Alexander Wirsig ◽  
Tatjana Krimly ◽  
Stephan Dabbert

2019 ◽  
Vol 88 ◽  
pp. 104104 ◽  
Author(s):  
Pirjo Peltonen-Sainio ◽  
Lauri Jauhiainen ◽  
Heikki Laurila ◽  
Jaana Sorvali ◽  
Eija Honkavaara ◽  
...  

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