Your search found 20 records
1 You, M.; Wang, H.. 1992. A study of water use efficiency of winter wheat in the North China Plain. In Shalhevet, J.; Liu, C.; Xu, Y. (Eds.) Water use efficiency in agriculture: Proceedings of the Binational China-Israel Workshop, Beijing, China, 22-26 April 1991. Rehovot, Israel: Priel Publishers. pp.90-101.
(Location: IWMI-HQ Call no: 631.7.2 G592 SHE Record No: H011007)
2 Wang, H.; Zhang, L.; Dawes, W. R.; Liu, C. 2001. Improving water use efficiency of irrigated crops in the North China Plain: Measurements and modelling. Agricultural Water Management, 48(2):151-167.
Water use efficiency ; Wheat ; Maize ; Plant growth ; Evapotranspiration ; Evaporation ; Simulation models ; Measurement ; Water table ; Precipitation ; Lysimetry ; Water balance ; Estimation ; Monitoring ; Soil water ; Crop yield ; Irrigation requirements / China / North China Plain
(Location: IWMI-HQ Call no: PER Record No: H028266)
3 Zhu, Q.; Liu, C.; Mou, H.; Wang, H.; Kung, W. H.; Wanjun, Z.; Zhijun, L.; Jiansheng, C. 2001. Weak water becomes a growing point: China has been successful in large-scale rainwater harvesting – There is tremendous scope for more. In Agarwal, A.; Narain, S.; Khurana, I. (Eds.), Making water everybody’s business: Practice and policy of water harvesting. New Delhi, India: Centre for Science and Environment. pp.170-182.
Water harvesting ; Rain ; Catchment areas ; Precipitation ; Water storage ; Hydrology ; Afforestation / China / Gansu Province / Loess Plateau / Taihang
(Location: IWMI-HQ Call no: 333.91 G635 AGA Record No: H030639)
4 Shao, X.; Wang, H.; Chen, Z. 2003. Numerical modeling of turbulent flow in curved channels of compound cross-section. Advances in Water Resources, 26(5):525-539.
(Location: IWMI-HQ Call no: PER Record No: H031773)
5 Cox, J. W.; McVicar, T. R.; Reuter, D. J.; Wang, H.; Cape, J.; Fitzpatrick, R. W. 2002. Assessing rainfed and irrigated farm performance using measures of water use efficiency. In McVicar, T. R.; Rui, L.; Walker, J.; Fitzpatrick, R. W.; Changming, L. (Eds.), Regional water and soil assessment for managing sustainable agriculture in China and Australia. Canberra, Australia: ACIAR. pp.70-81.
Water use efficiency ; Estimation ; Rain-fed farming ; Irrigated farming ; Hydrology ; Drainage ; Catchment areas / Australia / China
(Location: IWMI-HQ Call no: 631.7.1 G592 MCV Record No: H032991)
6 McVicar, T. R.; Zhang, G.; Bradford, A. S.; Wang, H.; Dawes, W. R.; Zhang, L.; Li, L. 2002. Monitoring regional water use efficiency indicators on the North China Plain. In McVicar, T. R.; Rui, L.; Walker, J.; Fitzpatrick, R. W.; Changming, L. (Eds.), Regional water and soil assessment for managing sustainable agriculture in China and Australia. Canberra, Australia: ACIAR. pp.231-257.
Water use efficiency ; Monitoring ; Indicators ; Water conservation ; Maize ; Crop production ; Irrigated farming ; Precipitation ; Information systems / China / Hebei
(Location: IWMI-HQ Call no: 631.7.1 G592 MCV Record No: H033004)
7 Wang, H.; Wang, C.; Wang, J.; Qin, D. 2004. Investigations into the effects of human activities on the hydrological cycle in the Yellow River Basin. Water International, 29(4):499-509.
River basins ; Hydrology ; Runoff ; Water conservation ; Soil conservation / China / Yellow River Basin
(Location: IWMI-HQ Call no: PER Record No: H036718)
8 Wang, Y.; Wang, H.. 2005. Sustainable use of water resources in agriculture in Beijing: problems and countermeasures. Water Policy, 7(4):345-357.
(Location: IWMI-HQ Call no: PER Record No: H037401)
9 McVicar, T. R.; Zhang, G.; Bradford, A. S.; Wang, H.; Dawes, W. R.; Zhang, L.; Lingtao, L. 2000. Developing a spatial information system to monitor regional agricultural water use efficiency for Hebei Province on the North China plain. Canberra, Australia: Commonwealth Scientific and Industrial Research Organisation (CSIRO). 54p.
Water resources ; Water use efficiency ; Monitoring ; Agriculture ; Yields ; Growth period ; Crops ; Maize ; Wheats ; Data ; GIS ; Spatial information / China / Hebei Province
(Location: IWMI HQ Call no: 333.91 G592 MCV Record No: H044213)
http://www.clw.csiro.au/publications/technical2000/tr31-00.pdf
https://vlibrary.iwmi.org/pdf/H044213.pdf
https://vlibrary.iwmi.org/pdf/H044213.pdf
(7.21 MB) (7.21MB)
10 Mu, J.; Khan, S.; Hanjra, M. A.; Wang, H.. 2009. A food security approach to analyse irrigation efficiency improvement demands at the country level. Irrigation and Drainage, 58(1):1-16.
Food security ; Food production ; Food consumption ; Feed consumption ; Water management ; Irrigation efficiency ; Water use ; Irrigated sites ; Climate change ; Crop production / China
(Location: IWMI HQ Call no: e-copy only Record No: H045607)
(0.29 MB)
This paper used a food security approach in an attempt to analyse how much food will be needed in China in 2030 and 2050; to produce that amount of food, at what scale should the irrigation area expand; to realize the development of that irrigation area, how much should the irrigation efficiency improve with the total irrigation water use kept within the range of the goals set up by the Chinese government; and what water management options should be adopted to improve the irrigation efficiency? The results show that there was US$3.1 billion worth of grain deficit in the year 2000 and there will be US$10.8 billion and US$3.2 billion of grain deficits in 2030 and 2050 respectively at the medium population growth and irrigation area development scenarios. To meet the total food demand in 2030 and 2050, 138 and 109 million ha of gross irrigated area are needed, which required 69 and 85% of surface water and groundwater irrigation efficiencies in 2030 and 63 and 83% of surface water and groundwater irrigation efficiencies in 2050 provided the total irrigation diversion is kept around 420 and 400 billion m3 respectively.
11 Wang, H.. 2019. Irrigation efficiency and water withdrawal in US agriculture. Water Policy, 21(4):768-786. [doi: https://doi.org/10.2166/wp.2019.175]
Irrigation efficiency ; Groundwater extraction ; Irrigated farming ; Irrigation systems ; Technology ; Public policy ; Water use ; Irrigation water ; Water supply ; Water conservation ; Crop production ; Economic aspects ; Models / USA
(Location: IWMI HQ Call no: e-copy only Record No: H049277)
(0.32 MB)
To meet future food demand and sustainability requirements of society, the agriculture sector faces challenges in both the institutional dimension and the technological dimension. One of the main concerns regarding the current agricultural production pattern is the tremendous amount of water it requires to maintain and boost output. With a changing climate and increasing demand from civil uses, promoting both water allocation efficiency and water application efficiency becomes the focus of policy design. The unintended consequences of water policies, however, have led to extensive debates. This study addresses the key question of whether irrigation efficiency improvement leads to reduced per-area water use. The study assembles a national county-level panel data set on water withdrawal, irrigation technology, and farm operation and demographics. The empirical results show that a higher irrigation efficiency is associated with a lower per-area water application in US crop production. Two alternative efficiency measures are proposed. Depending on how the efficiency is measured, a one standard-deviation efficiency improvement (6–30%) in irrigation can reduce 6–11% of water withdrawal in US crop production. The water saving is about 0.06–0.12 mm/day given a county average irrigation water use of 1.07 mm/day.
12 Wu, W.; Liao, R.; Hu, Y.; Wang, H.; Liu, H.; Yin, S. 2020. Quantitative assessment of groundwater pollution risk in reclaimed water irrigation areas of northern China. Environmental Pollution, 261:114173 (Online first). [doi: https://doi.org/10.1016/j.envpol.2020.114173]
Groundwater assessment ; Groundwater pollution ; Risk assessment ; Irrigation water ; Pollutants ; Water quality ; Aquifers ; River basins ; Models / China / Beijing
(Location: IWMI HQ Call no: e-copy only Record No: H049562)
(2.02 MB)
The application of reclaimed water for agricultural irrigation can effectively reduce the use of freshwater resources including groundwater, addressing the increasingly severe challenge of water shortage. However, reclaimed water irrigation will cause potential pollution risks to groundwater, which needs to be further studied to ensure the safety of reclaimed water irrigation. An integrated quantitative assessment system including the modified DRASTIC model was developed to evaluate the pollution risks caused by reclaimed water irrigation and scientific strategies were offered for the development of reclaimed water irrigation in water shortage areas to avoid groundwater pollution. The groundwater intrinsic vulnerability index, the hazards of the characteristic pollutants, and the groundwater values were quantified to obtain the pollution risks distribution map. In the Beijing plain of north China, the low groundwater pollution risk areas were located in the midstream of Chaobai river baisin, Beiyun river basin, and Yongding river basin, accounting for 48.3% of the total study area. These areas in low pollution risk can be considered as safety areas for reclaimed water irrigation. The moderate groundwater pollution risk areas accounting for 46.9% of the total study area were suggested to apply water-saving irrigation measures for preventing groundwater pollution. The reclaimed water irrigation should be prohibited in the high groundwater pollution risk areas, which accounted for 4.8% of the total study area. This study highlights the reasonable strategy for the development of reclaimed water irrigation in water shortage areas and lay a foundation for finding alternative water sources for agricultural irrigation.
13 Deng, C.; Wang, H.; Gong, S.; Zhang. J.; Yang, B.; Zhao, Z. 2020. Effects of urbanization on food-energy-water systems in mega-urban regions: a case study of the Bohai MUR, China. Environmental Research Letters, 15(4):044014. [doi: https://doi.org/10.1088/1748-9326/ab6fbb]
Urbanization ; Food systems ; Energy consumption ; Water systems ; Nexus ; Urban areas ; Water resources ; Land use ; Economic development ; Indicators ; Population growth ; Case studies / China / Bohai Mega-Urban Region / Beijing / Hebei / Tianjin / Liaoning / Shandong
(Location: IWMI HQ Call no: e-copy only Record No: H049630)
https://iopscience.iop.org/article/10.1088/1748-9326/ab6fbb/pdf
https://vlibrary.iwmi.org/pdf/H049630.pdf
https://vlibrary.iwmi.org/pdf/H049630.pdf
(3.37 MB) (3.37 MB)
The security of food-energy-water (FEW) systems is an issue of global concern, especially in mega-urban regions (MURs) with high-density populations, industries and carbon emissions. To better understand the hidden links between urbanization and FEW systems, the pressure on FEW systems was quantified in a typical rapidly urbanizing region—the Bohai MUR. The correlations between urbanization indicators and the pressure on FEW systems were analyzed and the mechanism of the impact of urbanization on FEW systems was further investigated. The results showed that approximately 23% of cropland was lost, 61% of which was lost via conversion to construction land and urban areas expanded by 132.2% in the Bohai MUR during 1980–2015. The pressure on FEW systems showed an upward trend, with the stress index of the pressure on FEW systems (FEW_SI) ranging from 80.49% to 134.82%. The dominant pressure consisting of that has converted from water system pressure to energy system pressure since 2004. The FEW_SI in the Bohai MUR was enhanced with cropland loss and increases in urbanization indicators. Additionally, land use, populations, incomes, policies and innovation are the main ways that urbanization affects FEW systems in MURs. This study enhances our understanding of the variation in pressure on FEW systems in MURs and the effects of urbanization on FEW systems, which will help stakeholders to enhance the resilience of FEW systems and promote sustainable regional development.
14 Gao, F.; Wang, H.; Liu, C. 2020. Long-term assessment of groundwater resources carrying capacity using GRACE data and Budyko model. Journal of Hydrology, 588:125042. (Online first) [doi: https://doi.org/10.1016/j.jhydrol.2020.125042]
Groundwater assessment ; Water resources ; Water storage ; Groundwater recharge ; Models ; Groundwater extraction ; Water depletion ; Water use efficiency ; Soil moisture ; Evapotranspiration ; Precipitation ; Wells ; Economic development / China / Zhangjiakou
(Location: IWMI HQ Call no: e-copy only Record No: H049716)
(7.58 MB)
Groundwater is crucial for the economic development in arid and semi-arid areas. However, groundwater resources have been over-exploited for meeting the increasing demands in agriculture, industry and domestic use. Therefore, the capacity of groundwater resources for supporting the economic development has been indeed reduced, which made a challenge for the assessment of the groundwater resources carrying capacity (GRCC). The present study constructed a new GRCC index (D) for assessing the long-term GRCC variation in Zhangjiakou of Hebei Province, China (ZJK) using Budyko equation, Gravity Recovery and Climate Experiment data (GRACE), Global Land Data Assimilation System data (GLDAS), sector water consumption data and GDP data. Our results shows that the short-term (2002–2017) annual and monthly anomalies in terrestrial water storage (TWSA) and groundwater storage appeared to be decreased, the anomalies in soil moisture storage tend to be zero while anomalies in snow water tend to be increased with annual rate of 2 cm year-1. The Budyko-derived long-term (1948–2018) groundwater storage changes (GWC) has declined from -310.9 to -455.6 cm and the large number of constructed wells for irrigation has accelerated the decline of groundwater resources in ZJK. Our results also shows the time series of D in ZJK were < 30%, 30% < D < 50% and D = 50% during 1948–1988, 1990–1993 and 1994–2018, indicating that the degree of groundwater resources exploitation were in the state of no overload, overload and heavy overload, respectively. The contribution of groundwater resources for the economic development has exceeded 50%, which indicated that the economic development of ZJK depend much more on groundwater resources. Improving the water use efficiency cannot improve groundwater resources carrying capacity, however, reducing the absolute use of groundwater resources should be the effective way to alleviate the shortage of groundwater resources and improve groundwater resources carrying capacity.
15 Yan, Z.; Zhou, Z.; Liu, J.; Wang, H.; Li, D. 2020. Water use characteristics and impact factors in the Yellow River Basin, China. Water International, 45(3):148-168. [doi: https://doi.org/10.1080/02508060.2020.1743565]
River basins ; Domestic water ; Industrial water use ; Agricultural water use ; Water demand ; Water supply ; Water resources ; Water policy ; Precipitation ; Socioeconomic development ; Sustainability / China / Yellow River Basin
(Location: IWMI HQ Call no: e-copy only Record No: H049894)
(2.43 MB)
This study focuses on the water use characteristics and impact factors in the Yellow River basin. Water use increased from 1980 to 2000 and then stabilized. Water use in the eight regions of the basin varies significantly in both time and space. Water use in different sectors is sensitive to variations in the irrigation area, industrial added value, efficiency, population and urbanization. Change trends are the results of the joint effects of supply-and-demand relationship and water policy. Water use is insensitive to precipitation, because irrigation mainly relies on river water and groundwater
16 Shi, W.; Huang, S.; Liu, D.; Huang, Q.; Han, Z.; Leng, G.; Wang, H.; Liang, H.; Li, P.; Wei, X. 2021. Drought-flood abrupt alternation dynamics and their potential driving forces in a changing environment. Journal of Hydrology, 597:126179. [doi: https://doi.org/10.1016/j.jhydrol.2021.126179]
Drought ; Flooding ; Climate change ; Precipitation ; Meteorological factors ; Water vapour ; River basins ; Spatial distribution ; Time series analysis / China / Wei River Basin / Jing River Basin / Beiluo River Basin
(Location: IWMI HQ Call no: e-copy only Record No: H050405)
(8.36 MB)
Compared with a single drought or flood, drought-flood abrupt alternation (DFAA) may have more adverse impact on water resources management, crop production, and food security. However, existing studies have paid seldom attention on the evolution characteristics of DFAA in northern China, and their driving factors have not yet been fully revealed. To this end, DFAA events such as drought to flood (DTF) and flood to drought (FTD) are examined from 1960 to 2010 in the Wei River basin (WRB) located in northern China, which is the largest tributary of the Yellow River Basin. Firstly, the long-cycle drought-flood abrupt transition index (LDFAI) is defined to identify DFAA events during the flood season of WRB. Secondly, the spatiotemporal evolution characteristics and future trend variability of DFAA events are explored based on LDFAI. Finally, the driving factors of DFAA events are comprehensively evaluated using qualitative and quantitative combination framework. Results indicate that (1) the frequency of DTF events in the WRB presents a “less-more-less” variation pattern from southwest to northeast and shows a significant spatial difference. However, the FDT events are vice versa; (2) the flood season is dominated by FTD events in the WRB, and the upstream of the WRB and Jing River basin (JRB) are dominated by the DTF events before mutation point; (3) the four sub-regions of the WRB show oscillation changes of “DTF-FDT” with 35-year period, and are prone to DTF events after 2010 years; and (4) average water vapor pressure is the dominant factor of DFAA events in the WRB compared with other meteorological factors, whereas Arctic Oscillation among multiple teleconnection factors exerts strong impacts on DFAA dynamics. The findings may be significant to the early warning and prevention of flood and drought disasters in the WRB under the challenge of future climate change.
17 Cheng, Z.; Yan, S.; Song, T.; Cheng, L.; Wang, H.. 2022. Adaptive water governance research in social sciences journals: a bibliometric analysis. Water Policy, 24(12):1951-1970. [doi: https://doi.org/10.2166/wp.2022.196]
Water governance ; Research ; Social sciences ; Bibliometric analysis ; Climate change ; Water resources ; Indicators ; Research institutions ; Policies
(Location: IWMI HQ Call no: e-copy only Record No: H051595)
https://iwaponline.com/wp/article-pdf/24/12/1951/1153561/024121951.pdf
https://vlibrary.iwmi.org/pdf/H051595.pdf
https://vlibrary.iwmi.org/pdf/H051595.pdf
(1.17 MB) (1.17 MB)
Adaptive water governance plays an increasingly important role in sustainable urban development and water governance response to global climate change. To comprehensively understand the research situation and development trend of adaptive water management, this study conducts a systematic literature review of articles published in International Social Sciences Citation Index (SSCI) journals based on bibliometric analysis. The results show that adaptive water governance as an emerging topic of water governance has an overall growth trend in published articles. The articles on adaptive water governance mainly concentrated on the disciplines of environmental science and environmental studies. Developed countries are a hub for water governance research, and China has the sixth largest number of articles from around the world. The adaptive water governance research has formed a preliminary global collaborative network, but the authors' collaboration needs to be strengthened. The most popular topics of adaptive water governance include South Africa, adaptive management, groundwater, principal component analysis, scenario planning, the analytic hierarchy process, resources, basins, computer experiments, and technology development. This finding suggests that adaptive water governance is a critical driver for sustainable urban development and represents a critical direction in the future research of water governance.
18 Li, Y.; Wang, M.; Wang, H.. 2023. Towards consistency of value and order: cooperation strategies of international water projects. Surveys in Geophysics, 48(3):393-422. (Special Issue: Intelligent River Basins in China: A SMART Water Revolution) [doi: https://doi.org/10.1080/02508060.2023.2204690]
International waters ; Transboundary waters ; Water scarcity ; Strategies ; Water resources ; Risk ; Conflicts ; Political aspects ; Community involvement ; Participation ; Climate change ; International organizations ; International cooperation ; Water supply ; Investment ; Infrastructure ; Empowerment ; Developing countries ; Economic development
(Location: IWMI HQ Call no: e-copy only Record No: H051994)
(1.60 MB)
This article discusses the policy principles and strategy models for water resources projects around developing regions of the World Bank, the Asian Development Bank, African Development Bank, European Union, United States and Japan. To address conflicts and risks, they adapted different frameworks following a similar logic. A two-track sustainable model – value of isomorphism and order of symbiosis – is then identified, combining strategies of consistency, methodology diffusion, community participation and resource incentives.
19 Yuan, D.; Du, M.; Yan, C.; Wang, J.; Wang, C.; Zhu, Y.; Wang, H.; Kou, Y. 2024. Coupling coordination degree analysis and spatiotemporal heterogeneity between water ecosystem service value and water system in Yellow River Basin cities. Ecological Informatics, 79:102440. (Online first) [doi: https://doi.org/10.1016/j.ecoinf.2023.102440]
Ecosystem services ; Models ; Towns ; Urbanization ; Water quality ; Indicators ; Water resources ; Wastewater ; Water pollution / China / Yellow River Basin / Lanzhou / Yinchuan / Hohhot / Xi'an / Zhengzhou / Jinan
(Location: IWMI HQ Call no: e-copy only Record No: H052430)
https://www.sciencedirect.com/science/article/pii/S1574954123004697/pdfft?md5=6c5a2b78ac65a17f1fc91045bbbe3ee2&pid=1-s2.0-S1574954123004697-main.pdf
https://vlibrary.iwmi.org/pdf/H052430.pdf
https://vlibrary.iwmi.org/pdf/H052430.pdf
(11.70 MB) (11.7 MB)
Accelerated urbanization has caused encroachment on urban water ecological land in China's Yellow River basin, resulting in a strong disturbance of water ecosystem service functions and increasingly serious water ecological environmental problems. In this study, two entities—water ecosystem service value (WESV) and the urban water system—are identified, to investigate the interactions between WESV and the urban water systems and their subsystems in six Yellow River basin cities (Lanzhou, Yinchuan, Hohhot, Xi'an, Zhengzhou, and Jinan) from 2005 to 2020. First, the integrated level of the WESV and the water system in each city is calculated using the modified and developed method of equivalence factor per unit area and the entropy method, respectively. Then, the coupling coordination relationship and interactions between WESV and the water system in each city are revealed by using the coupling coordination degree model (CCDM) and the Geographically and Temporally Weighted Regression (GTWR). The results show that: 1) The level of both WESV and the water system in each city basically shows an increasing trend, the hydrological regulation function dominates the water ecosystem service functions, and the comprehensive evaluation level of the water environment is generally higher than that of the other urban water system's subsystems. 2) The degree of coupling coordination between WESV and the water system in each city gradually rose from extreme incoordination to basically coordination, and the coupling coordination degree (CCD) between WESV and the water environment and the water resources also shows an obvious upward trend, but the CCD between WESV and water safety is developing more slowly. 3) The area where the WESV and the water system have greater positive impacts are primarily focused in Lanzhou and Xi'an, while the negative impacts are mainly located in Yinchuan and Zhengzhou. In summary, in the planning and decision-making of cities in the Yellow River basin or other basin cities, it is critical to promote the protection of water ecology and high-quality development in cities by clearly understanding the interaction between water ecosystem services and the water system, and coordinating and balancing development between the two systems.
20 Wang, H.; Liu, J.; Klaar, M.; Chen, A.; Gudmundsson, L.; Holden, J. 2024. Anthropogenic climate change has influenced global river flow seasonality. Science, 383(6686):1009-1014. [doi: https://doi.org/10.1126/science.adi9501]
(Location: IWMI HQ Call no: e-copy only Record No: H052632)
(1.36 MB)
Riverine ecosystems have adapted to natural discharge variations across seasons. However, evidence suggesting that climate change has already impacted magnitudes of river flow seasonality is limited to local studies, mainly focusing on changes of mean or extreme flows. This study introduces the use of apportionment entropy as a robust measure to assess flow-volume nonuniformity across seasons, enabling a global analysis. We found that ~21% of long-term river gauging stations exhibit significant alterations in seasonal flow distributions, but two-thirds of these are unrelated to trends in annual mean discharge. By combining a data-driven runoff reconstruction with state-of-the-art hydrological simulations, we identified a discernible weakening of river flow seasonality in northern high latitudes (above 50°N), a phenomenon directly linked to anthropogenic climate forcing.
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