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hydrological environment
相关语句
  水文环境
    Hydrological Environment Changes in Shanghai and Countermeasures
    上海市水文环境变化及对策探讨
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  水文环境
    Hydrological Environment Changes in Shanghai and Countermeasures
    上海市水文环境变化及对策探讨
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  hydrological environment
Climato-hydrological environment inferred from Lake Baikal sediments based on an automatic orbitally tuned age model
      
Changes Of Hydrological Environment And Their Influences On Coastal Wetlands InThe Southern Laizhou Bay, China
      
Because a compulsory water-level operation was carried out in the dam lake, it was considered that the effect of the hydrological environment in the catchment area on the dam lake was relatively large in comparison with that in natural lakes.
      
The abiotic hydrological environment and the community dynamics of the fish fauna were investigated in the Ria de Aveiro, an estuarine coastal lagoon system (43 km2), which has both marine and fluvial influences.
      
The ichthyofauna and abiotic hydrological environment of the Ria de Aveiro, Portugal
      
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Basing on the survey of regional karst hydrological environment system of LongmenGrottoes,Luoyang City,China,the genesis and feature of Lot,gmen geothermal field are pre-sented,Which are related to the development and utilization of mineral warm springs at theGrottoes.From the viewpoint of karst groundwater dynamics,this paper set up the dynamicsection of the underground flow for the mineral warm springs,and analyses the relations be-tween geothermal anomaly and the karstification of Caodian active fault...

Basing on the survey of regional karst hydrological environment system of LongmenGrottoes,Luoyang City,China,the genesis and feature of Lot,gmen geothermal field are pre-sented,Which are related to the development and utilization of mineral warm springs at theGrottoes.From the viewpoint of karst groundwater dynamics,this paper set up the dynamicsection of the underground flow for the mineral warm springs,and analyses the relations be-tween geothermal anomaly and the karstification of Caodian active fault zone.Two prognosticmodels,i.e.,model of cyclic depth of karst water forming the warm springs and model of ad-mixture volumetric ratio between the cold and warm karst water,are established by use ofthe thermodynamic equilibrium theory.Finally,some key conclusions are summarized usefulto protection and utilization of the springs.

本文基于龙门石窟区域岩溶水文系统的构成,论述了与石窟区地热异常带内优质热矿泉开发利用有关的地温场特征和成因、温泉岩溶水动力学特征,以及地温异常与岩溶发育关系等问题。其中根据热平衡理论建立的温泉水循环深度、温泉水上升过程中与地下浅部冷水混合比例两个理论预测模型,有其理论意义和广泛适用性。

Urbanization and associated economic development of China have experienced a speedy increase in last decades.Consequently,the local and surrounding areas of large cities in North China are facing to the problem of water scarcity.The current research investigates the development of water resources in Shijiazhuang area during the last 70 years and the associated change of hydrological cycle through historical data analysis,field survey,and groundwater quality and isotopic analysis.This investigation shows...

Urbanization and associated economic development of China have experienced a speedy increase in last decades.Consequently,the local and surrounding areas of large cities in North China are facing to the problem of water scarcity.The current research investigates the development of water resources in Shijiazhuang area during the last 70 years and the associated change of hydrological cycle through historical data analysis,field survey,and groundwater quality and isotopic analysis.This investigation shows the local groundwater of Shijiazhuang mainly accepts vertical recharge through river channels and the lateral recharge from the aquifers in mountainous areas.Urbanization,industrialization,and development of agriculture have largely altered the natural hydrological cycle in the past 70 years,especially the recharge and discharge structure of groundwater system,which could be balanced and self-regulated formerly.Continuous dry-up of rivers in the study area cuts off the major vertical recharge source of groundwater.Meanwhile,the extensive exploitation of groundwater due to municipal,industrial,and agricultural use makes the urban area sifting to a groundwater discharge region from the formerly recharge region.Moreover,the chemical composition of groundwater and its spatial distribution illustrate the change of water quality and regional hydrological environments as well as the drop of groundwater table.

论文系统分析了石家庄地区70年来伴随社会经济发展的水资源开发历史,结合水文资料探讨了人类活动对区域水文环境变迁的影响。并通过对地下水采样,结合室内水化学和氚同位素测定,确认区域地下水补给来源主要是通过河道得到线状的垂向补给,和上游含水层的侧向补给两种天然途径。城市及工农业发展改变了区域水循环系统的补排结构。河流断流减少了地下水的垂向补给,造成地下水的补给源从原来的天然垂向补给和上游的侧向补给,变为单一的侧向补给。另一方面,大量开采地下水已成为区域地下水排泄的主要方式。其中用于农业灌溉的大部分以蒸发、蒸腾的形式耗散于大气,无法回补。地下水位的持续下降、地下水化学类型转变及其空间分布显示了水量和水质以及生态环境的变化。

 
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