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Fengtian Yang
Jilin Provincial Key Laboratory of Water Resources and Environment, Jilin University, Changchun 130021, China

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Journal article
Published: 09 August 2021 in Sustainability
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Groundwater is the main irrigation water source in the Upper Peacock River. As fast enlargement of irrigation areas continues in recent years, the groundwater level declines continuously and has posed a threat to the sustainability of local agriculture and ecology. A numerical model was established with the code MODFLOW–2000 in order to predict the declining trend of groundwater level and formulate measures to counter the overexploitation, in which the river–aquifer interaction was elaborated and characterized by field survey. The results show that under current intensity of groundwater withdrawal, the levels of both unconfined and confined waters would decline continuously in 7 years from 2015. To stop the groundwater level from declining on the regional scale, the withdrawal rate should be compressed by 45% with respect to that in 2015. Moreover, taking consideration of the constraint of maintaining the ecological water level in the vicinity of the Euphrates Poplar forest in the study area, the withdrawal rate should be compressed 70% for seven towns around the forest.

ACS Style

Yujuan Su; Fengtian Yang; Yaoxuan Chen; Pan Zhang; Xue Zhang. Optimization of Groundwater Exploitation in an Irrigation Area in the Arid Upper Peacock River, NW China: Implications for Sustainable Agriculture and Ecology. Sustainability 2021, 13, 8903 .

AMA Style

Yujuan Su, Fengtian Yang, Yaoxuan Chen, Pan Zhang, Xue Zhang. Optimization of Groundwater Exploitation in an Irrigation Area in the Arid Upper Peacock River, NW China: Implications for Sustainable Agriculture and Ecology. Sustainability. 2021; 13 (16):8903.

Chicago/Turabian Style

Yujuan Su; Fengtian Yang; Yaoxuan Chen; Pan Zhang; Xue Zhang. 2021. "Optimization of Groundwater Exploitation in an Irrigation Area in the Arid Upper Peacock River, NW China: Implications for Sustainable Agriculture and Ecology." Sustainability 13, no. 16: 8903.

Journal article
Published: 18 February 2019 in Polish Journal of Environmental Studies
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Unreasonable exploitation of groundwater resources in the Kongque River region has led to a decline in the groundwater table, groundwater salinization, and other geo-environmental problems. Therefore, this study supplements the studies on soil water and salt transport in the Kongque River region,...

ACS Style

Weihong Dong; Chuanlei Wen; Pan Zhang; Xiaosi Su; Fengtian Yang. Soil Water and Salt Transport and its Influence on Groundwater Quality: A Case Study in the Kongque River Region of China. Polish Journal of Environmental Studies 2019, 28, 1637 -1650.

AMA Style

Weihong Dong, Chuanlei Wen, Pan Zhang, Xiaosi Su, Fengtian Yang. Soil Water and Salt Transport and its Influence on Groundwater Quality: A Case Study in the Kongque River Region of China. Polish Journal of Environmental Studies. 2019; 28 (3):1637-1650.

Chicago/Turabian Style

Weihong Dong; Chuanlei Wen; Pan Zhang; Xiaosi Su; Fengtian Yang. 2019. "Soil Water and Salt Transport and its Influence on Groundwater Quality: A Case Study in the Kongque River Region of China." Polish Journal of Environmental Studies 28, no. 3: 1637-1650.

Review
Published: 01 September 2017 in Geosciences Journal
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Low injectivity of sandstone geothermal reservoirs during reinjection of geothermal waste water is a problem generally encountered in China, and has become a main obstacle for sustainable development of the geothermal resources. Over the last few decades, researchers have made much efforts to solve it based on the studies of reinjection schemes, hydrogeology of the reservoirs, well completion, reinjection water disposal techniques, and water-rock interactions focused on precipitation/dissolution reactions during reinjection. These studies have been very helpful in improving the injectivity. However, there are still many problems remaining for further investigations, among which characterization of the complete process of water-rock interactions during reinjection with the change in redox conditions, CO2 partial pressure, non-isothermal transport process of the reinjection water, and the mechanism of release, transport and sedimentation of colloidal particles on reservoir permeability being taken into account are considered to be the most necessary. This paper gives a brief review of the history and state of the art of the research works on reinjection of cooled water into sandstone geothermal reservoirs, and outlooks the research demands in water-rock interactions during reinjection in the future.

ACS Style

Yujuan Su; Fengtian Yang; Bing Wang; Zhi Jia; Zhongfeng Duan. Reinjection of cooled water into sandstone geothermal reservoirs in China: a review. Geosciences Journal 2017, 22, 199 -207.

AMA Style

Yujuan Su, Fengtian Yang, Bing Wang, Zhi Jia, Zhongfeng Duan. Reinjection of cooled water into sandstone geothermal reservoirs in China: a review. Geosciences Journal. 2017; 22 (1):199-207.

Chicago/Turabian Style

Yujuan Su; Fengtian Yang; Bing Wang; Zhi Jia; Zhongfeng Duan. 2017. "Reinjection of cooled water into sandstone geothermal reservoirs in China: a review." Geosciences Journal 22, no. 1: 199-207.

Original article
Published: 02 June 2016 in Environmental Earth Sciences
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Coal collapse columns are special geologic structures developed in the coal fields in North China. Water bursting related to the columns is characterized by large flow rates and is difficult to be predicted. In some cases, it is difficult to distinguish coal collapse columns and faults. Here, we propose a method based on sediment dating combined with borehole drilling and geophysical surveys. By application of the method to the Guqiao coal mine in the Huainan coal field, we recognized a significant offset of the Quaternary units around a geologic structure, and inferred that it cannot result from coal collapse columns but by faulting, and determined the ages of the faults.

ACS Style

Fengtian Yang; Zhonghe Pang; Zhongfeng Duan. Distinguishing between faults and coal collapse columns based on sediment dating: a case study of the Huainan coal field, China. Environmental Earth Sciences 2016, 75, 1 .

AMA Style

Fengtian Yang, Zhonghe Pang, Zhongfeng Duan. Distinguishing between faults and coal collapse columns based on sediment dating: a case study of the Huainan coal field, China. Environmental Earth Sciences. 2016; 75 (11):1.

Chicago/Turabian Style

Fengtian Yang; Zhonghe Pang; Zhongfeng Duan. 2016. "Distinguishing between faults and coal collapse columns based on sediment dating: a case study of the Huainan coal field, China." Environmental Earth Sciences 75, no. 11: 1.

Journal article
Published: 09 October 2015 in Greenhouse Gases: Science and Technology
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Geochemical responses of saline aquifers toward large quantities of CO2 injection are important to the monitoring and safety assessment of CO2 storage. Detailed studies on water-rock-CO2 interactions of non-marine saline aquifers through three batch-reaction experiments were carried out under simulated reservoir conditions (T = 100°C, P = 10 MPa). pH decreased by 1∼2 and TDS increased by 268 mg/L ∼561 mg/L. Water type evolved from original Cl·SO4-Na to HCO3Cl·SO4-Na with a water/rock ratio of 3:1. Chemical components of HCO3, Ca, Mg and K and trace elements of Al, Cr, Mn, Ni and Zn showed a significant increase post CO2 injection. Heavy metals including Cr, Mn, Ni, and Zn in the post-reaction water exceeded drinking water standards, indicating potential pollution to shallow fresh aquifers by brine/CO2 leakage. K-feldspar and albite were variably dissolved and kaolinite, chlorite, and Fe-bearing minerals of pyrite and hematite were newly formed, confirmed by suspended materials in the post-reaction water, red sediments on the bottom of the reactor, and mineral saturation indexes. δ2HH2O shift was observed and discussed, which was not reported in previous water-rock-CO2 interactions studies. One possible reason is geochemical processes of new clay minerals formation under low temperature causing water consumption and δ2HH2O enriched in the residual water. The CO2 saturation and fraction of DIC from CO2 dissolution were calculated to be 23%–36% and 33%–49% under experimental conditions and it is suggested that they can be used for CO2 storage capacity assessment.

ACS Style

Yiman Li; Zhonghe Pang; Fengtian Yang; Chao Jin. Geochemical responses of a saline aquifer to CO2injection: experimental study on Guantao formation of Bohai Bay Basin, East China. Greenhouse Gases: Science and Technology 2015, 6, 125 -137.

AMA Style

Yiman Li, Zhonghe Pang, Fengtian Yang, Chao Jin. Geochemical responses of a saline aquifer to CO2injection: experimental study on Guantao formation of Bohai Bay Basin, East China. Greenhouse Gases: Science and Technology. 2015; 6 (1):125-137.

Chicago/Turabian Style

Yiman Li; Zhonghe Pang; Fengtian Yang; Chao Jin. 2015. "Geochemical responses of a saline aquifer to CO2injection: experimental study on Guantao formation of Bohai Bay Basin, East China." Greenhouse Gases: Science and Technology 6, no. 1: 125-137.

Journal article
Published: 18 May 2014 in Hydrological Processes
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Given that the concentration of 222Rn in groundwater is much higher than that in surface water and that its radioactive half‐life (3.83 d) is short, 222Rn is an effective tracer of groundwater–surface water interactions. In this study, a new mass balance method is presented, which can be used to estimate specific groundwater–surface water interactions within a river reach. Three possible situations of interaction between groundwater and surface water are considered, and equations based on the mass conservation of 222Rn are formulated for judging specific groundwater–surface water interaction processes and for calculating water flux. A case study was conducted for the Nalenggele River, Northwest China, to demonstrate the usefulness of this method. Samples of river water and groundwater containing 222Rn were collected from the study area to estimate the interactions between groundwater and surface water. The amount of water exchanged during these interactions was estimated and the results show that transformations between groundwater and surface water are frequent along the stream. The 222Rn mass balance method is highly sensitive for studying such interactions, even in areas for which conventional hydrologic data are sparse. Copyright © 2014 John Wiley & Sons, Ltd.

ACS Style

Xiaosi Su; Wei Xu; Fengtian Yang; Pucheng Zhu. Using new mass balance methods to estimate gross surface water and groundwater exchange with naturally occurring tracer 222 Rn in data poor regions: a case study in northwest China. Hydrological Processes 2014, 29, 979 -990.

AMA Style

Xiaosi Su, Wei Xu, Fengtian Yang, Pucheng Zhu. Using new mass balance methods to estimate gross surface water and groundwater exchange with naturally occurring tracer 222 Rn in data poor regions: a case study in northwest China. Hydrological Processes. 2014; 29 (6):979-990.

Chicago/Turabian Style

Xiaosi Su; Wei Xu; Fengtian Yang; Pucheng Zhu. 2014. "Using new mass balance methods to estimate gross surface water and groundwater exchange with naturally occurring tracer 222 Rn in data poor regions: a case study in northwest China." Hydrological Processes 29, no. 6: 979-990.

Journal article
Published: 01 March 2013 in Applied Geochemistry
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ACS Style

Fengtian Yang; Zhonghe Pang; Li Lin; Zhi Jia; Fengna Zhang; Zhongfeng Duan; Zhenhai Zong. Hydrogeochemical and isotopic evidence for trans-formational flow in a sedimentary basin: Implications for CO2 storage. Applied Geochemistry 2013, 30, 4 -15.

AMA Style

Fengtian Yang, Zhonghe Pang, Li Lin, Zhi Jia, Fengna Zhang, Zhongfeng Duan, Zhenhai Zong. Hydrogeochemical and isotopic evidence for trans-formational flow in a sedimentary basin: Implications for CO2 storage. Applied Geochemistry. 2013; 30 ():4-15.

Chicago/Turabian Style

Fengtian Yang; Zhonghe Pang; Li Lin; Zhi Jia; Fengna Zhang; Zhongfeng Duan; Zhenhai Zong. 2013. "Hydrogeochemical and isotopic evidence for trans-formational flow in a sedimentary basin: Implications for CO2 storage." Applied Geochemistry 30, no. : 4-15.