共查询到19条相似文献，搜索用时 125 毫秒
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地下水资源保护与合理利用战略研究课题 《国土资源通讯》2003,(1):41-48
为贯彻落实中央人口资源环境工作座谈会和中央领导关于水资源问题的重要指示精神,切实加强我国地下水资源保护和合理开发利用工作,根据国土资源部2001年调研工作安排,由部环境司牵头,部开发司、储量司、勘查司和中国地质调查局、中国地质科学院及中国地质环境监测院共同参与,于2001年6月～11月组织开展了地下水资源保护与合理利用战略研究专题调研工作。 为保证调研任务的完成,分别成立了调研协调组和专家组。 相似文献
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针对利用传统监测手段难以高效获取地下水储量观测数据的问题,基于GRACE重力卫星的大尺度水资源储量反演已成为当前水资源调查的研究热点。本文利用2012-2016年CSR机构发布的GRACE RL06月解数据,通过等效水高反演得到河南省陆地水储量时序结果,扣除由同期GLDAS水文模型计算得到的地表水储量时序数据,从而得到河南省地下水储量时序变化数据结果。经与地下水位监测井实测数据进行对比验证,相关系数显著性水平达0.01,表明本文算法流程具有较高的可靠性。进一步的统计分析结果表明,河南省北部地区的地下水储量呈亏损态势,最大变化率超过26 mm/a;河南省中部和东部地区地下水储量有一定盈余,最大变化率超过16 mm/a,相关结果数据与河南省水利局公布的全省主要地下水超采区范围吻合。本文旨在利用GRACE重力卫星数据与GLDAS水文模型反演获取河南省地下水储量空间分布差异及演变趋势,相关算法流程可为广域地下水储量调查监测提供技术支撑;研究数据可为该区域地下水资源的合理利用与保护提供参考。 相似文献
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针对目前水资源问题的越发严重,雨水资源的利用受到越来越多的关注和重视。充分利用雨水资源可以补给城市水源,涵养地下水,防治雨洪灾害。平原区作为人类活动的主要区域,雨水的利用更具有研究意义。本文以崂山区的平原区为例,估算了雨水资源总量、雨水资源理论潜力和雨水资源实际潜力,然后根据实际情况对雨水资源的利用进行了研究分析。 相似文献
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《测绘与空间地理信息》2020,(8)
针对贵州省地下水水文地质条件复杂,难以开展地下水资源的管理与评价分析工作的问题,本文首先介绍了水均衡法和GRACE卫星重力法等两种地下水资源量的计算方法及流程;然后,基于此从系统架构、功能体系等方面对贵州省地下水数据管理与评价分析系统进行了详细设计,并开发出了应用系统;最后,以贵州省区域内地下水基础数据、33个站观测资料和多种遥感数据等作为实验数据,实现贵州省地下水数据资源的集成管理以及基于GRACE卫星重力法与水均衡法等两种方法的水资源量计算,并得到GRACE卫星重力法计算结果与实测结果具有更高拟合度。实验表明:该系统中的GRACE重力卫星法能监测省级中等尺度岩溶地下水资源变化且较水均衡法有更好的可行性、适用性。此外,该系统不仅有利于贵州省地下水数据资源的存储与管理,同时对于贵州省地下水数据资源的共享与服务也起到了一定的促进作用。 相似文献
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土壤盐渍化量化的遥感与GIS实验 总被引：20，自引：1，他引：20
为对土壤盐渍化程度做更为科学的定量分析，该文重点研究了地下水埋深，地下水矿化度和地貌因子对土壤盐渍化影响以及这种影响的定量化，研究区为吉林省长岭县实验区。利用地理信息系统作为支持工具，结合遥感数据和专家经验，建立数学模型，进行综合分析，获得了较好的结果，这种方法为分析土壤盐渍化问题的有效途径之一。 相似文献
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针对京津冀地区地下水储量快速减少,影响了地下水资源的可持续利用和生态环境保护的问题,急需系统研究掌握地下水储量变化趋势,该文利用基于2010—2020年GRACE和GLDAS连续观测数据,运用趋势分析和偏相关分析等方法探讨了京津冀地区地下水储量时空变化规律,分析了其与相关要素时空变化的关联特征。结果表明：2010—2020年京津冀地区地下水储量变化整体上呈下降趋势,空间上呈现出东北向西南下降程度逐渐加深的态势,且大部分区域下降趋势极为显著;关联分析结果显示,地下水储量变化与NDVI在一定程度上表现为负相关,说明农业生产与植被恢复在一定程度上以地下水储量减少为代价;与年总降水量在一定程度上表现为正相关,降水能够对地下水储量起到一定的补给作用;与地表温度表现为负相关性,地表温度的升高不利于地下水储量的恢复。相关成果为京津冀地区地下水监测与管理提供一定的信息支撑。 相似文献
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肖兴平 《测绘与空间地理信息》2011,(6):124-126
地下水是水资源的重要组成部份,地下水污染危害人的健康,影响人们的生产和生活,查明某一地区地下水容易受污染的可能性即地下水脆弱性,能为管理决策部门提供合理开发地下水资源,防治地下水污染的科学规划和管理依据。在脆弱性评价工作中,应用当前国际上最先进的地理信息系统平台ArcGIS,并结合地统计分析原理,完成地下水系统脆弱性编... 相似文献
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V. B. Rekha A. P. Thomas M. Suma H. Vijith 《Journal of the Indian Society of Remote Sensing》2011,39(1):63-71
The importance of groundwater is growing based on an increase in need and decrease in the availability of fresh surface water
sources and adequate rainfall. Remote Sensing and Geographic Information System (GIS) has become one of the leading tools
in the field of hydrogeological science, which helps in assessing, monitoring and conserving groundwater resources. This paper
describes the results of a groundwater potentiality and quality assessment conducted in Koduvan ár sub-watershed of Meenachil
river basin, Kottayam district of Kerala state, in the Republic of India. Shallow groundwater is the main source of drinking
water in urban and rural areas, but reliable spatial data on its potentiality and quality are currently insufficient for developing
the water-supply systems with standard designs. The methodology used in the present study includes an integrated approach
of remote sensing and GIS for the construction of groundwater potentiality map and the assessment of water quality of identified
wells. Different spatial data layers such as, geomorphology, lithology, slope and land use/ land cover are generated and the
interrelationship between these layers were analyzed to identify and assess the groundwater potentiality of the area. The
final result depicts the favourable prospective zones in the study area with its quality parameters and can be helpful to
formulate recommendations to reduce the water scarcity and quality risks for public health. 相似文献
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地面沉降是一种对地面及地下基础设施造成安全隐患,对经济可持续发展和环境保护产生破坏影响的地质灾害现象。本文使用2017年5月至2018年5月16景Sentinel-1A卫星SAR影像,根据D-InSAR的初步形变监测结果将即墨城区内沉降明显的区域作为研究区,基于PS和SBAS两种时序InSAR方法对该区域进行地面沉降监测,获得的沉降分布和形变时序结果吻合。地面沉降的分布与新建高层建筑区吻合,地面形变趋势与区域降水量和地下水水位变化有较高的相关性。研究结果有助于了解即墨城区的地表沉降状况以及原因,为地面沉降综合治理和地下水水资源开发利用提供参考依据。 相似文献
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Mărgărit-Mircea Nistor 《地球空间信息科学学报》2013,16(4):345-358
ABSTRACTThe impact of climate change on groundwater vulnerability has been assessed in the Pannonian basin over 1961–2070. High-resolution climate models, aquifers composition, land cover, and digital elevation model were the main factors which served to perform the spatial analysis using Geographical Information Systems. The analysis reported here is focused on the long-term period, including three temporal time sets: the past period of 1961–1990 (1990s), the present period of 2011–2040 (2020s), and the future period of 2041–2070 (2050s). During the 1990s, the high and very high areas of groundwater vulnerability were identified in all the central, western, eastern, southeastern, and northern sides of the Pannonian basin. In these areas, the water availability is lower and the pollution load index is high, due to the agricultural activities. The low and very low vulnerability class was depicted in the South-West part of the basin and in few locations from the peripheral areas, mainly in the North and West. The medium groundwater vulnerability spreads over the Pannonian basin, but it is more concentrated in the central, South, and South-West. The most affected territory is Hungary, while the territories of Slovenia, Croatia, and Bosnia and Herzegovina are less affected. In the present and future periods, the very high groundwater vulnerability increased in areas by 0.74% and 0.87%, respectively. The low class area decreased between the 1990s and the 2020s by 2.33% and it is expected to decrease up to 2.97% in the 2050s. Based on this analysis and the groundwater vulnerability maps, the Pannonian basin appears more vulnerable to climate change in the present and future. These findings demonstrate that the aquifers from Pannonian basin experience high negative effect under climate conditions. In addition, the land cover contributes to this negative status of groundwater resources. The original maps of groundwater vulnerability represent an instrument for water management planning and for research. 相似文献
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Today the world is facing the biggest crisis for water. The available both surface and groundwater resources are not sufficient to meet all the water requirements for all purpose. The optimal and sustainable development of the resource is a prerequisite so that it is assessed reliably to avoid any future problems regarding its qualitative and quantitative availability. The interpretation of remote sensing data in conjunction with ancillary data and sufficient ground truth information makes it possible to identify and outline various ground features such as geological structures, geomorphic features and their hydraulic characters, that may serve as direct or indirect indicators of the presence of ground and surface water. Remote sensing and Geographical Information System (GIS) have emerged to meet ever-increasing demand for more precise and timely information. These techniques permit rapid and cost effective natural resource survey and management. Remotely sensed data provides unbiased informations on geology, geomorphology, structural pattern and recharging conditions, which logically define the groundwater regime and help to generate water resources development action plan. The present study is an attempt to prepare a water resource development action plan for Sasti watershed of Chandrapur district, Maharashtra using remote sensing and G1S. 相似文献
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A. Geetha Selvarani G. Maheswaran K. Elangovan 《Journal of the Indian Society of Remote Sensing》2017,45(1):67-77
The water is a nature’s valuable gift to all life forms. Water quality and quantity plays a major role for the growth and development of community. Both natural and human factors influence the quality and quantity of water source. Depending upon the quality and quantity of groundwater it can be used for various purposes, such as drinking, agricultural and industrial. Due to revolution in industries and various anthropogenic sources in the past decades, groundwater has been polluted and depleted. Remote sensing and Geographical Information System (GIS) has become one of the leading tools in the field of hydrogeological science, which helps in assessing, monitoring and conserving groundwater resources. GIS technology provides suitable alternatives for efficient management of large and complex databases. In recent years, the increasing use of satellite remote sensing data has made it easier to define the spatial distribution of different groundwater prospect classes on the basis of geomorphology and other associated parameters. Analysis of remotely sensed data along with Survey of India(SOI) topographical sheets and collateral information with necessary field checks helps in generating the base line information for artificial recharge. The artificial recharge sites were identified by integrating thematic maps of geology, geomorphology, slope, drainage density and lineament density of the study area. The study focuses on the development of remote sensing and GIS based analysis and methodology for identifying artificial recharge studies in Noyyal river basin. 相似文献
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基于AHP和GIS的扬泰地区浅层地下水脆弱性评价 总被引：1，自引：0，他引：1
地下水脆弱性评价是保护地下水资源的重要手段,本文根据扬泰地区浅层地下水的水文地质条件,对DRASTIC模型进行了修改。选取地下水位埋深、大气降水入渗净补给量、含水层介质、含水层厚度、地形坡度、包气带介质影响、含水层富水性7个因子作为评价因子,利用层次分析法确定各因子的权重值,建立了符合扬泰地区浅层地下水脆弱性评价模型;利用ArcGIS10．0软件的空间叠加分析功能,编制了扬泰地区浅层地下水脆弱性评价等级图,评价结果与该地区实际水文地质条件基本吻合,对扬泰地区的地下水资源保护和区域规划具有一定的参考价值。 相似文献