A Water Resources Collaborative Allocation Model for the Composite Water Resources-Socioeconomic-Eco-Environment System

2021 ◽  
Author(s):  
Liqin Li ◽  
Ting Wang ◽  
Xinmin Xie ◽  
Xingyao Pan
Keyword(s):  
Water Resources ◽  
Composite System ◽  
Mutual Exclusion ◽  
Northwest China ◽  
Tarim River ◽  
Allocation Model ◽  
Irrigation Area ◽  
Balanced Development ◽  
Proposed Model ◽  
Relationship Of

Abstract In consideration of the strong mutual exclusion of urban development and ecological environment protection, the coupling relationship of the composite water resources-socioeconomic-eco-environment system is overall recognized on the base, and the key control parameters and order parameters in the collaborative allocation model for the composite system are quantitative characterized. Then, aiming at the coordinated and orderly development of the composite system, the water resources collaborative allocation model is proposed by means of multiple loop iteration technique. At last, the proposed model is successfully applied in the Tarim River in northwest China. The results reveals that when the water frequency is less than or equal to 50%, through an accumulated new water saving irrigation area of 12.76 million mu, an accumulated reduced agricultural irrigation area of 6.22 million mu, as well as an accumulated reduced water usage quantity at 7.5 billion m3 in national economy, which can realize the orderly benign evolution and efficient and balanced development of the water resources, economic society and ecosystem composite system,and verify the feasibility of the method.

scholarly journals Study on Double-Level Allocation of Irrigation Water Rights

2021 ◽  
Author(s):  
Xinjian Guan ◽  
Qiongying Du ◽  
Wenge Zhang ◽  
Baoyong Wang
Keyword(s):  
Water Resources ◽  
Water Consumption ◽  
Optimal Allocation ◽  
Water Rights ◽  
Scientific Basis ◽  
Water Saving ◽  
Irrigation District ◽  
Allocation Model ◽  
Irrigation Area ◽  
Irrigation Districts

Abstract Establishing and perfecting the water rights system is an important way to alleviate the shortage of water resources and realize the optimal allocation of water resources. Agriculture is an important user of water in various water-consumption industries, the confirmation of water rights in irrigation districts to farmers is the inevitable requirement for implementing fine irrigation in agricultural production. In this paper, a double-level water rights allocation model of national canals – farmer households in irrigation district is established. It takes into account the current water consumption of the canal system, the future water-saving potential and the constraint of total amount control at the canal level. It takes into account the asymmetric information of farmer households’ population and irrigation area at the farmer household level. Furthermore, the Gini coefficient method is used to construct the water rights allocation model among farmer households based on the principle of fairness. Finally, Wulanbuhe Irrigation Area in the Hetao Irrigation Area of Inner Mongolia is taken as an example. The results show that the allocated water rights of the national canals in the irrigation district are less than the current because of water-saving measures and water rights of farmer household get compensation or cut respectively. The research has fully tapped the water-saving potential of irrigation districts, refined the distribution of water rights of farmers and can provide a scientific basis for the development of water rights allocation in irrigation districts and water rights transactions between farmers.

The Multi-Objective Optimization Allocation Model of Water Resources in Xiaokai River Irrigation Area

2015 ◽  
Vol 1092-1093 ◽  
pp. 1289-1294
Author(s):  
Xin Wang ◽  
Jing Xu ◽  
Ke Kong ◽  
Lei Yan ◽  
Fang Wu
Keyword(s):  
Water Resources ◽  
Optimization Model ◽  
Supply And Demand ◽  
Reference Value ◽  
Multi Objective Optimization ◽  
Allocation Model ◽  
Irrigation Area ◽  
Multi Objective ◽  
Groundwater Environment ◽  
Sequence Method

For the three big problems of water resources supply and demand contradiction, protection of groundwater environment and sediment over long distances in Xiaokai river irrigation area, the model of water utilization benefit maximization, groundwater level optimal control and the goal of sediment transport effect optimization model are established, and coupled into a multi-objective optimization model. The model is solved by using The delaminating sequence method, obtained the rational allocation plan of water resources in water years, and analyzing the rationality of the plan. The results show that, the scheme comprehensively considers the economic and environmental issues and has great reference value to promote sustainable development of irrigation area.

scholarly journals Stand structure and height-diameter relationship of a degraded Populus euphratica forest in the lower reaches of the Tarim River, Northwest China

2015 ◽  
Vol 7 (4) ◽  
pp. 544-554 ◽  
Author(s):  
Tayierjiang Aishan ◽  
Ümüt Halik ◽  
Florian Betz ◽  
Tashpolat Tiyip ◽  
Jianli Ding ◽  
...  
Keyword(s):  
Stand Structure ◽  
Populus Euphratica ◽  
Northwest China ◽  
Tarim River ◽  
The Tarim River ◽  
Relationship Of

scholarly journals A regulation-allocation coupling approach for agricultural water resources management based on water quantity orientation

2020 ◽  
Author(s):  
Siyuan Liu ◽  
Ni Wang ◽  
Jiancang Xie ◽  
Rengui Jiang ◽  
Menglong Zhao
Keyword(s):  
Water Resources ◽  
Coupling Model ◽  
Northwest China ◽  
Rapid Expansion ◽  
Local Conditions ◽  
The Sustainable Development ◽  
Balanced Development ◽  
Coupling Approach ◽  
Agricultural Water Resources ◽  
Water Scarce

Abstract In water-scarce areas with low grain yields, people have to expand the farmland scale to gain more food. Rapid expansion of agricultural scale may lead to a higher risk of re-abandonment of wasteland due to waterless irrigation in water-deficient areas. Against this background, this study proposed a water resources regulation-allocation coupling model. The ‘regulation’ is to control the water consumption of agriculture and regulate the utilized scale with water resources as the main constraint; the ‘allocation’ is to optimize the water resources allocation among crops and arrange the crop planting system according to the water quota for different crops and the economic, social and ecological benefits brought by crops, so as to control the water resources among crops. Afterwards, taking an agro-pastoral ecotone in Northwest China as the study case, schemes of feasible agricultural scale and planting structure suitable for local conditions were obtained. Lastly, the matching patterns of land and water resources were raised gradually from ‘poor’ into ‘good’ degree from 2015 to 2030. This study is expected to provide a reference for controlling the ordered and balanced development of land and water resources of agriculture as well as effectively improving the sustainable development ability in water-deficient areas.

scholarly journals Study on optimal allocation of water resources in Dujiangyan irrigation district of China based on improved genetic algorithm

2020 ◽  
Author(s):  
Ruihuan Li ◽  
Yingli Chang ◽  
Zhaocai Wang
Keyword(s):  
Genetic Algorithm ◽  
Water Resources ◽  
Optimal Allocation ◽  
Water Shortage ◽  
Vertical Dimension ◽  
Allocation Model ◽  
Genetic Operator ◽  
Irrigation Area ◽  
Use Of Resources ◽  
Constraint Model

Abstract In order to distribute water resources reasonably, it is convenient to make full use of resources and produce high economic and social benefits. Taking the Dujiangyan irrigation area of China as an example, we discuss the idea of establishing and solving the optimal allocation model of water resources. Aiming at this area, a two-dimensional constraint model with the highest economic value, the minimum water shortage, the minimum underground water consumption and the necessary living water demand is established. In order to solve this model, we improve the multi-population genetic algorithm, extend the genetic optimization of the algorithm into two dimensions, take the population as the vertical dimension and the individual as the horizontal dimension, and transforms the cross genetic operator to copy the genetic operator and the mutation operator to only act on the vertical dimension, so as to optimize the allocation of such discrete objectives of water resources in the irrigation area with the particular model suitable for the region. The distribution results successfully control the water shortage rate of each area at a low level, which save the exploitation of groundwater to the maximum extent and produce high economic benefits. The improved algorithm proposed in this paper has a kind of strong optimization ability and provides a new solution for the optimization problem with multiple constraints.

Effects of climate change on water resources in Tarim River Basin, Northwest China

2007 ◽  
Vol 19 (4) ◽  
pp. 488-493 ◽  
Author(s):  
Ya-ning CHEN ◽  
Wei-hong LI ◽  
Chang-chun XU ◽  
Xin-ming HAO
Keyword(s):  
Climate Change ◽  
Water Resources ◽  
River Basin ◽  
Northwest China ◽  
Tarim River ◽  
Tarim River Basin

scholarly journals Application of edge computing and GIS in ecological water requirement prediction and optimal allocation of water resources in irrigation area

PLoS ONE ◽  
2021 ◽  
Vol 16 (7) ◽  
pp. e0254547
Author(s):  
Yang Li ◽  
Jiancang Xie ◽  
Rengui Jiang ◽  
Dongfei Yan
Keyword(s):  
Water Quality ◽  
Sustainable Development ◽  
Water Resources ◽  
Water Demand ◽  
Optimal Allocation ◽  
Edge Computing ◽  
Allocation Model ◽  
The Sustainable Development ◽  
Irrigation Area ◽  
Water Quality And Quantity

The purposes are to use water resources efficiently and ensure the sustainable development of social water resources. The edge computing technology and GIS (Geographic Information Science) image data are combined from the perspective of sustainable development. A prediction model for the water resources in the irrigation area is constructed. With the goal of maximizing comprehensive benefits, the optimal allocation of water quality and quantity of water resources is determined. Finally, the actual effect of the model is verified through specific instance data in a province. Results demonstrate that the proposed irrigation area ecological prediction model based on edge computing and GIS images can provide better performance than other state of the art models on water resources prediction. Specifically, the accuracy can remain above 90%. The proposed model for ecological water demand prediction in the irrigation area and optimal allocation of water resources is based on the principle of quality water supply. The optimal allocation of water resources reveals the sustainable development ideas and the requirements of the optimal allocation model, which is very reasonable. The improvement of the system is effective and feasible, and the optimal allocation results are reasonable. This allocation model aims at the water quality and quantity conditions, water conservancy project conditions, and specific water demand requirements in the study area. The calculation results have great practicability and a strong guiding significance for the sustainable utilization and management of the irrigation area.

scholarly journals Evaluating Cryospheric Water Withdrawal and Virtual Water Flows in Tarim River Basin of China: An Input–Output Analysis

2021 ◽  
Vol 13 (14) ◽  
pp. 7589
Author(s):  
Yang Yang ◽  
Shiwei Liu ◽  
Cunde Xiao ◽  
Cuiyang Feng ◽  
Chenyu Li
Keyword(s):  
Water Resources ◽  
River Basin ◽  
Socioeconomic Development ◽  
Virtual Water ◽  
Water Withdrawal ◽  
Tarim River ◽  
Tarim River Basin ◽  
Input Output ◽  
Output Analysis ◽  
Water Flows

In Tarim River Basin (TRB), the retreat of glacier and snow cover reduction due to climate warming threatens the regional economy of downstream basins that critically depends on meltwater. However, the quantitative evaluation of its impact on multiple sectors of the socioeconomic system is incomplete. Based on compiled regional input–output table of the year 2012, this study developed a method to analyze the relationships between economic activities and related meltwater withdrawal, as well as sectoral transfer. The results show that the direct meltwater withdrawal intensity (DMWI) of agriculture was much higher than other sectors, reaching 2348.02 m3/10,000 CNY. Except for A01 (agriculture) and A02 (mining and washing of coal), the embodied meltwater withdrawal (EMW) driven by the final demand of other sectors was greater than direct meltwater withdrawal, and all sectors required inflows of virtual water (72.45 × 108 m3, accounting for 29% of total supply from cryospheric water resources) for their production processes in 2012. For sectors with high DMWI, improving water-use efficiency is an effective way to reduce water withdrawal. To some extent, the unbalanced supply of cryospheric water resources due to geographical segregation can be regulated by virtual water flows from water-saving to water-intensive sectors. Such decisions can affect the balance between socioeconomic development and environment conservation for long-term sustainability.

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