Environmental Effects and Efficient Utilization Research Mode of Yantai Dagujia River Resources Development

2013 ◽  
Vol 726-731 ◽  
pp. 3244-3248
Author(s):  
Xiang Ran Li ◽  
You Qian Qiao ◽  
Chang Lu Fu
Keyword(s):  
Water Resources ◽  
River Basin ◽  
Environmental Effects ◽  
Water Cycle ◽  
Social Economy ◽  
Efficient Utilization ◽  
Fast Development ◽  
Yantai City ◽  
Development And Utilization ◽  
Current Water

Natural water cycle is of river-basin characteristic, with obvious river-basin regularity in formation, movement and change. The development and utilization of river-basin water resources are of important significance to solve the shortage of water resources. Dagujia river is the second largest river in Yantai. But with fast development of social economy and population growth of Yantai city, Dagujia river resources have been overexploited, resulting in corresponding environmental effects. Based on the thorough investigation of the current water resources utilization, the paper analyses the production and the change trend of environmental effects and discusses projects and management mode in order to achieve efficient utilization of water resources.

scholarly journals Study on the streamflow compensation characteristics of reservoirs in Luanhe River Basin based on Copula function

2021 ◽  
Author(s):  
Fang Wan ◽  
Lingfeng Xiao ◽  
Qihui Chai ◽  
Li Li
Keyword(s):  
Water Resources ◽  
Water Supply ◽  
River Basin ◽  
Rapid Development ◽  
Supply And Demand ◽  
Copula Function ◽  
Efficient Utilization ◽  
Mutual Compensation ◽  
Luanhe River Basin ◽  
Yuqiao Reservoir

Abstract With the rapid development of economy and society, the contradiction between supply and demand of water resources is increasing. Efficient utilization and allocation of limited water resources are one of the main means to solve the above contradictions. In this paper, the multidimensional joint distribution of natural streamflow series in reservoirs is constructed by introducing the mixed Copula function, and the probability of wet and dry encounters between natural streamflow is analyzed. Luan River is located in the northeastern part of Hebei Province, China, taking the group of Panjiakou Reservoir, Douhe Reservoir and Yuqiao Reservoir in the downstream of Luan River Basin as an example, the probabilities of synchronous and asynchronous abundance and depletion of inflow from the reservoirs are calculated. The results show that the probability of natural streamflow series between reservoirs is 61.14% for wetness and dryness asynchronous, which has certain mutual compensation ability. Therefore, it is necessary to minimize the risk of water supply security in Tianjin, Tangshan and other cities, and strengthen the optimal joint water supply scheduling of reservoirs. The research results are reasonable and reliable, which can provide reference for water supply operation of other basins.

The Efficient Development and Utilization Model of Groundwater Resources in Seawater Intrusion Area-Taking Yantai City as an Example

2013 ◽  
Vol 726-731 ◽  
pp. 3294-3298
Author(s):  
Xiang Ran Li ◽  
You Qian Qiao ◽  
Yu Zhen Xing
Keyword(s):  
Water Resources ◽  
Seawater Intrusion ◽  
Groundwater Resources ◽  
Actual Situation ◽  
Effective Prevention ◽  
Yantai City ◽  
Development And Utilization ◽  
Over Exploitation ◽  
Special Environment ◽  
Important Significance

The seawater intrusion, as special environment caused by unreasonable development utilization of water resources at coastal areas, widely exists at home and abroad. In recent years, the phenomenon of groundwater over-pumping in Yantai City is increasingly serious and seawater intrusion problems also occur constantly. Further investigation of seawater intrusion status in Yantai city, analysis of correlation of seawater intrusion and over exploitation of groundwater, combined with the actual situation of Yantai City, explore the mode of groundwater resources utilization in seawater intrusion area. For the effective prevention of seawater intrusion, it has important significance to do the efficient development and utilization of groundwater resources well.

scholarly journals Cumulative Environmental Effects of Hydropower Stations Based on the Water Footprint Method—Yalong River Basin, China

2019 ◽  
Vol 11 (21) ◽  
pp. 5958 ◽  
Author(s):  
Yu ◽  
Jia ◽  
Wu ◽  
Wu ◽  
Xu ◽  
...  
Keyword(s):  
River Basin ◽  
Environmental Effects ◽  
Water Scarcity ◽  
Water Footprint ◽  
Environmental Flow ◽  
Blue Water ◽  
Development And Utilization ◽  
Hydropower Stations ◽  
Yalong River ◽  
Yalong River Basin

The construction of hydropower stations is not without controversy as they have a certain degree of impact on the ecological environment. Moreover, the water footprint and its cumulative effects on the environment (The relationship between the degree of hydropower development and utilization in the basin and the environment) of the development and utilization of cascade hydropower stations are incompletely understood. In this paper, we calculate the evaporated water footprint (EWF, water evaporated from reservoirs) and the product water footprint of hydropower stations (PWF, water consumption per unit of electricity production), and the blue water scarcity (BWS, the ratio of the total blue water footprint to blue water availability) based on data from 19 selected hydropower stations in the Yalong River Basin, China. Results show that: (a) the EWFs in established, ongoing, proposed, and planning phases of 19 hydropower stations are 243, 123, 59, and 42 Mm3, respectively; (b) the PWF of 19 hydropower stations varies between 0.01 and 4.49 m3GJ−1, and the average PWF is 1.20 m3GJ−1. These values are quite small when compared with hydropower stations in other basins in the world, and the difference in PWF among different hydropower stations is mainly derived from energy efficiency factor; (c) all the BWS in the Yalong River Basin are below 100% (low blue water scarcity), in which the total blue water footprint is less than 20% of the natural flow, and environmental flow requirements are met. From the perspective of the water footprint method, the cumulative environmental effects of hydropower development and utilization in the Yalong River Basin will not affect the local environmental flow requirements.

scholarly journals Climate change effects on the hydrology of the headwaters of the Tagus River: implications for the management of the Tagus–Segura transfer

2018 ◽  
Vol 22 (12) ◽  
pp. 6473-6491 ◽  
Author(s):  
Francisco Pellicer-Martínez ◽  
José Miguel Martínez-Paz
Keyword(s):  
Climate Change ◽  
Water Resources ◽  
River Basin ◽  
Hydrological Model ◽  
Water Cycle ◽  
Economic Loss ◽  
Climate Change Scenarios ◽  
Resource Exploitation ◽  
Climate Change Effects ◽  
Tagus River

Abstract. Currently, climate change is a major concern around the world, especially because of the uncertainty associated with its possible consequences for society. Among them, fluvial alterations can be highlighted in basins whose flows depend on groundwater discharges and snowmelt. This is the case of the headwaters of the Tagus River basin, whose water resources, besides being essential for water uses within this basin, are susceptible to being transferred to the Segura River basin (both basins are in the Iberian Peninsula). This work studies the possible effects that the latest climate change scenarios may have on this transfer, one of the most important ones in southern Europe. In the first place, the possible alterations of the water cycle of the donor basin were estimated. To do this, a hydrological model was calibrated. Then, with this model, three climatic scenarios were simulated, one without climate change and two projections under climate change (Representative Concentration Pathways 4.5 (RCP 4.5) and 8.5 (RCP 8.5)). The results of these three hydrological modelling scenarios were used to determine the possible flows that could be transferred from the Tagus River basin to the Segura River basin, by simulating the water resource exploitation system of the Tagus headwaters. The calibrated hydrological model predicts, for the simulated climate change scenarios, important reductions in the snowfalls and snow covers, the recharge of aquifers, and the available water resources. So, the headwaters of the Tagus River basin would lose part of its natural capacity for regulation. These changes in the water cycle for the climate change scenarios used would imply a reduction of around 70 %–79 % in the possible flows that could be transferred to the Segura basin, with respect to a scenario without climate change. The loss of water resources for the Segura River basin would mean, if no alternative measures were taken, an economic loss of EUR 380–425 million per year, due principally to decreased agricultural production.

scholarly journals Eco-environmental effects of water resources development and utilization in the Sanjiang Plain, Northeast China

2017 ◽  
Vol 18 (3) ◽  
pp. 1051-1061 ◽  
Author(s):  
Zilong Wang ◽  
Qiuxiang Jiang ◽  
Qiang Fu ◽  
Xi Jiang ◽  
Kaiyue Mo
Keyword(s):  
Surface Water ◽  
Water Resources ◽  
Environmental Effects ◽  
Sanjiang Plain ◽  
Ecological Environment ◽  
Land Resources ◽  
Surface Water Resources ◽  
Development And Utilization ◽  
Vegetation And Climate ◽  
Effect Of Surface

Abstract Water resources development and utilization (WRDU) is an important way for humans to utilize natural resources, and has a deep effect on ecological environments. Flat topography, groundwater dependence and a high proportion of agricultural water are the main features of WRDU in Sanjiang Plain. Due to large-scale development in the last 60 years, the ecological environment of Sanjiang Plain has changed significantly. In order to identify the eco-environmental problems and make regional ecological environment and water resources sustainable, trend and correlation analyses were performed to analyze the eco-environmental effects of WRDU from the aspects of water resources, land resources, vegetation and climate. The results show that the regional eco-environmental effects caused by WRDU in Sanjiang Plain are significant. The quantity and quality of groundwater resources and the social and ecological functions of land resources are significantly affected by the regional development and utilization of water resources, while the effect of surface water resources is not obvious. The changes of vegetation and climate are also significant, but the response mechanism to WRDU requires further study. With the changes of extent, pattern and degree of surface water utilization in Sanjiang Plain, the effect of surface water resources is becoming more and more prominent.

Sustainable Strategies and Status of Unconventional Water Resources Development and Utilization in Manas River Basin

2010 ◽  
Vol 113-116 ◽  
pp. 565-570 ◽  
Author(s):  
Zhen Hua Wang ◽  
Xin Lin He ◽  
Guang Yang ◽  
Sha Li
Keyword(s):  
Water Resources ◽  
River Basin ◽  
Agricultural Development ◽  
Saline Water ◽  
Salt Water ◽  
Scientific Development ◽  
Return Flow ◽  
Exploitation And Utilization ◽  
Manas River Basin ◽  
Development And Utilization

Because of the Lack of water resources and the increasing water quantity used in living and production, the water resources are becoming the restrictive factor of regional economic and social development in in Manas river basin. The exploitation and utilization of conventional water resources has reached more than 95% in the basin,it caused great attention that the development and utilization of non-conventional water resources for agricultural development and ecological environment construction. At present, the exploitation and utilization of the non-conventional water resources(shallow underground salt water，saline water) for agriculture and forestry has become more and more widespread and in-depth. because of the lack of scientific instruction and reasonable exploitation, which not only caused water level falling, leading to degradation of the brittle natural entironment, but also caused SBHCSS and the decline in productivity. With the analysis of the non-conventional water resources actual exploitation and utilization, under the scientific development concept, the aryicle puts forward the sustained strategies of non-conventional underground water resources (salt water, saline water) reasonable exploitation and the irrigation return flow reuse efficient exploitation which is used for ecological restoration and reconstruction.

scholarly journals Climate change effects on the hydrology of the headwaters of the Tagus River: implications for the management of the Tagus-Segura transfer

2018 ◽  
Author(s):  
Francisco Pellicer-Martínez ◽  
José Miguel Martínez-Paz
Keyword(s):  
Climate Change ◽  
Water Resources ◽  
River Basin ◽  
Water Cycle ◽  
Economic Loss ◽  
Hydrological Modelling ◽  
Climate Change Scenarios ◽  
Resource Exploitation ◽  
Climate Change Effects ◽  
Tagus River

Abstract. Currently, climate change is a major concern around the world, especially because of the uncertainty associated with its possible consequences for society. Among these can be highlighted the fluvial alterations in basins whose flows depend on groundwater discharges and snow melt. This is the case of the headwaters of the Tagus River Basin, whose water resources, besides being essential for water uses within this basin, are susceptible to being transferred to the Segura River Basin (both basins are in the Iberian Peninsula). This work studies the possible effects that the latest climate change scenarios may have on this transfer, one of the most important in southern Europe. In the first place, the possible alterations of the water cycle of the donor basin were estimated. To do this, a hydrological model was calibrated. Then, with this model, three climatic scenarios were simulated, one without climate change and two projections under climate change (Representative Concentration Representative 4.5 (RCP 4.5) and RCP 8.5). The results of these three hydrological modelling scenarios were used to determine the possible flows that could be transferred from the Tagus River Basin to the Segura River Basin, by simulating the water resource exploitation system of the Tagus headwaters. These hydrological modelling predict, for the simulated climate change scenarios, important reductions in the snowfalls and snow covers, the recharge of aquifers and the available water resources. So, the headwaters of the Tagus River Basin would be the loss of part of its natural capacity for regulation. These changes in the water cycle for the climate change scenarios used would imply a reduction of around 80 % in the possible flows that could be transferred to the Segura Basin, with respect to a scenario without climate change. The loss of water resources for the Segura River Basin would mean, if no alternative measures were taken, an economic loss of 330–380 million euro per year, due principally to decreased agricultural production.

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