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| 1 | Integrated simulation of the dualistic water cycle and its associated processes in the Haihe River Basin显示文摘Water resource shortages, water environmental deterioration, and water ecological degradation are becoming increasingly prominent in the Haihe River Basin under the effects of global climate change and intense human activity. Finding ways to solve these problems reasonably is an urgent task in basin water resources management. The water cycle describes the formation and transformation of every water drop, while it interacts with associated water ecology and water environment processes. Therefore, to fundamentally solve the above problems, the three processes must be combined and the evolutionary trends of the ecology and water environment driven by the water cycle must be determined. To comprehensively diagnose and solve the problems of water resources, ecology and water environment in the basin, an integrated simulation platform of the dualistic water cycle and its associated processes in the Haihe River Basin was established by fully analyzing the 'natural-social' dualistic characteristics of the evolution of the basin water cycle in this study. Accordingly, it is a supporting tool to evaluate the future trends of water resources, ecology and the water environment by setting scenarios based on the predictions of a climate mode and water control conditions. The results show that with climate change, the water consumption, groundwater overexploitation, and the amount of water flowing to the sea could develop soundly and satisfy the requirements of national economic growth in the future planning year 2030 through the implementation of water consumption control management and the South-North Water Diversion Project. Meanwhile, associated water environmental deterioration can be alleviated, and a growing trend for production capacities of the natural ecosystem and agro-ecosystem is seen. The above results provide a foundation for implementing basin water resources regulation and the most strict water resources management. | WANG Hao JIA YangWen YANG GuiYu ZHOU ZuHao QIU YaQin NIU CunWen PENG Hui | 2013 | Chinese Science Bulletin2013，58，27： | 10 |
| 2 | Necessity and feasibility for an ET-based modern water resources management strategy: A case study of soil water resources in the Yellow River Basin显示文摘The necessity and feasibility of an ET-based modern water resources management was analyzed to improve assessment of critical water resources scarcity in the region/basin. This analysis was based on the whole water cycle process and its analysis object is evapotranspiration (ET), a main consumption component in the water resources dynamic transformation process. A case study was undertaken by selecting soil water resources in the Yellow River Basin and employing the WEP-L distributed hydrological model with physics mechanisms. This paper discusses the amount and consumption efficiency of soil-water resources according to completely simulated results of water cycle elements throughout the basin. Results indicate that it is important for the ET-based modern water resources management strategy to alleviate water resources scarcity because it may not only avoid unused water wasting but also improve water use efficiency. Therefore, an ET-based modern water resources management scheme is a good complement to the traditional water resources demand management system. | WANG Hao YANG GuiYu JIA YangWen QIN DaYong GAN Hong WANG JianHua HAN ChunMiao | 2009 | Science China(Technological Sciences)2009，52，10： | 6 |
| 3 | Study on consumption efficiency of soil water resources in the Yellow River Basin based on regional ET structure显示文摘Based on the regional water resources character, the concept of soil water resources is first redefined, and then associated with their transfer relationship in the hydrological cycle, Evapotranspiration (ET)-based consumption structure and consumption efficiency of soil water resources are analyzed. According to ET 's function in productivity, the consumption efficiency of soil water resources is di- vided into three classes: high efficient consumption from vegetation transpiration, low efficient con- sumption from soil evaporation among plants with high vegetation coverage and inefficient consump- tion from soil evaporation among plants with low vegetation coverage and bare soil evaporation. The high efficient and low efficient consumption were further classified as productive consumption. The ineffi- cient consumption is considered non-productive consumption because it is significant in the whole hydrological cycle process. Finally, according to these categories, and employing a WEP-L dis- tributed hydrological model, this paper analyzes the consumption efficiency of soil water resources in the Yel- low River Basin. The results show that there are 2078.89×108 m3 soil water resources in the whole basin. From the viewpoint of consumption structure, the soil water resources are comprised of 381.89×108 m3 transpiration consumption from vegetation and 1697.09×108 m3 evaporation consumption from soil among plants and bare soil. From the viewpoint of consumption efficiency, soil water re- sources are composed of 920.11×108 m3 efficient consumption and 1158.86×108 m3 of inefficient con- sumption. High efficient consumption accounts for 41.5 percent of the total efficient consumption of the whole basin, low efficient for 58.5 percent. Furthermore, consumption efficiency varies by region. Compared with ET from different land use conditions, the whole basin appears to follow the trend of having the greatest proportion of consumption as inefficient consumption, followed by low efficient consumption, and then the least proportion as high efficient consumption. The amount of inefficient consumption in some regions with vegetation is less than in other regions without vegetation. The amount of inefficient consumption in grasslands is much greater than in forestlands. However, the proportion of low efficient consumption is the greatest in crop fields. The amount of high efficient con- sumption in grasslands and forelands is similar to the corresponding low efficient consumption. However, the low efficient consumption in grasslands is larger than in the forelands. Therefore, when adjusting the utilization efficiency of soil water resources, vegetation coverage and plant structure should be modulated in terms of the principle of decreasing inefficient consumption, improving low efficiency ET and increasing high efficiency ET according to area character. | WANG Hao YANG GuiYu JIA YangWen QIN DaYong | 2008 | Science China Earth Sciences2008，51，3： | 3 |
| 4 | Integrated modeling and assessment of water resources and water environment in the Yellow River Basin 显示文摘 | Yangwen Jia Cunwen Niu Hao Wang | 2007 | Journal of Hydro-Environment Research2007，，1： | 1 |
| 5 | An experimental study on dynamic processes of ephemeral gully erosion in loess landscapes显示文摘 | Gong Jiaguo Jia Yangwen Zhou Zuhao | 2011 | Geomorphology2011，125，1： | 1 |
| 6 | Development of the WEP-L distributed hydrological model and dynamic assessment of water resources in the Yellow River basin显示文摘 | Jia Yangwen Hao Wang | 2006 | Journal of Hydrology2006，331，： | 1 |
| 7 | Development of WEP Model and its application to an urban watershed显示文摘 | Jia Yangwen Ni Guangheng Yoshihisa Kawahara | 2001 | Hydrological Processes2001，15，： | 1 |
| 8 | Development of the WEP-L distributed hydrological model and dynamic assessment of water resources in the Yellow River Basin 显示文摘 | JIA Yangwen WANG Hao ZHOU Zuhao | 2006 | Journal of Hydrology2006，331，1234： | 1 |
| 9 | Development of the WEP - L Distributed Hydrological Model and Dynamic Assessment of Water Resources in the Yellow River显示文摘 | Yangwen Jia Hao Wang Zuhao Zhou | 2006 | Journal of Hydrology2006，，331： | 1 |
| 10 | Integrated modeling and assessment of water resources and water environment in the Yellow River basin显示文摘 | Jia Yangwen Niu Cunwen Wang Hao | 2007 | Journal of Hydro-Environment Research2007，，1： | 1 |
| 11 | Integrated modeling and assessment of water resources and water environment in the Yellow River Basin显示文摘 | Jia Yangwen Niu Cunwen Wang Hao | 2007 | Journal of Hydro-Environment Research2007，1，1： | 1 |
| 12 | An experimental study on dynamic processes of ephemeral gully erosion in loess landscapes显示文摘 | Gong Jiaguo Jia Yangwen Zhou Zuhao | 2011 | Geomorphology2011，125，1： | 1 |
| 13 | 节水方法:市政管网中的渗漏控制显示文摘在黄、淮、海河(3-H)流域,用水的需求与水的供应的不对称,使得节水成为这一地区社会经济和环境发展中需要优先考虑的事情。在这个背景下,市政供水管网的渗漏控制为促进水的保存和提高供水服务的成效提供了一个绝佳的机会。实际上,市政供水管网会损失超过一半的供水量,这种资源的浪费不仅造成环境的破坏,而且增加了供水的成本,因为需要更多的化学物质去处理水,以及在市政供水管网中消耗更多的能源去传输水。本文从经济和环境的角度出发,在市政供水管网中实施主动渗漏控制的优势所在。阐述了国际上实施渗漏控制的最佳实践的概况,并将重点放在了获取经济渗漏控制水平的方法上,展示了预防性的渗漏策略是如何通过流量和压力控制来进行市政供水管网优化,从而使之缩短回报周期,并通过水的保存和提高供水机构的财政与运作成效来增加附加值。 | Augusto Pretner Alessandro Bettin Luz Sainz Jia Yangwen | 2007 | 水工业市场2007，0，12： | 0 |
| 14 | 节水方法:市政管网中的渗漏控制显示文摘在黄、淮、海河(3-H)流域,用水的需求与水的供应的不对称,使得节水成为这一地区社会经济和环境发展中需要优先考虑的事情。在这个背景下,市政供水管网的渗漏控制为促进水的保存和提高供水服务的成效提供了一个绝佳的机会。实际上,市政供水管网会损失超过一半的供水量,这种资源的浪费不仅造成环境的破坏,而且增加了供水的成本,因为需要更多的化学物质去处理水,以及在市政供水管网中消耗更多的能源去传输水。本文从经济和环境的角度出发,在市政供水管网中实施主动渗漏控制的优势所在。阐述了国际上实施渗漏控制的最佳实践的概况,并将重点放在了获取经济渗漏控制水平的方法上,展示了预防性的渗漏策略是如何通过流量和压力控制来进行市政供水管网优化,从而使之缩短回报周期,并通过水的保存和提高供水机构的财政与运作成效来增加附加值。 | Augusto Pretner Alessandro Bettin Luz Sainz Jia Yangwen | 2008 | 水工业市场2008，0，2： | 0 |
| 15 | Response of water-use efficiency to phenology in the natural forest and grassland of the Loess Plateau in China显示文摘Ecosystem water use efficiency(WUE)is an integrated physiological metric for the coupling cycle between terrestrial carbon,water,and energy.How WUE responds to vegetation phenology(e.g.,SOS,EOS-start,end of growing season,and GSL-growing season length)shifting in temperate semi-arid regions is a hot spot in relative research fields.Based on remotesensing products and in-situ measured climate data,this study discussed how gross primary productivity(GPP),evapotranspiration(ET),and WUE(quantified by GPP/ET)would change with the altering vegetation phenology and climate in the untouched semi-arid forests and grasslands of the Chinese Loess Plateau during 2001–2020.Our results show that vegetation tended to green-up earlier and brown-down later from 2001 to 2020,causing an extended GSL.The forests had an earlier SOS,later EOS,and longer GSL than the grasslands,but the latter had a bigger variation amplitude.The WUE in the study area decreased significantly during spring and summer,while the grassland WUE increased in autumn;the annual mean reduction rate in grassland WUE was approximately twice that of woodland.Earlier SOS could increase forest WUE but reduce grassland WUE in spring,mainly because leaf unfolding has a more pronounced limitation on soil evaporation beneath the forest canopy.EOS had less impact on WUE,and no apparent difference existed between these two ecosystems.Climate change could affect WUE directly by changing GPP and ET and indirectly by regulating vegetation phenology.Warming can increase GPP and ET,causing an earlier SOS,further promoting GPP and ET(except forest ET).Precipitation significantly affected forest GPP and ET in spring,grassland GPP and ET in summer,and grassland ET in autumn;precipitation affects spring grassland WUE mainly via regulating SOS.Enhanced solar radiation could suppress grassland GPP in spring,promote forest ET in autumn,and regulate grassland WUE by affecting phenology.This study is meaningful for improving the process-based vegetation model and studying arid and semi-arid ecosystems’responses to a changing climate. | Xingyan TAN Yangwen JIA Cunwen NIU Dawen YANG Wen LU Chunfeng HAO | 2023 | Science China Earth Sciences2023，66，9： | 0 |
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