Journal of Environmental Geography最新文献_第8页

Towards a continuous inland excess water flood monitoring system based on remote sensing data 基于遥感数据的内陆汛期洪水连续监测系统研究

Journal of Environmental Geography Pub Date : 2017-11-01 DOI: 10.1515/jengeo-2017-0008

Boudewijn van Leeuwen, Zalán Tobak, F. Kovács, G. Sipos

{"title":"Towards a continuous inland excess water flood monitoring system based on remote sensing data","authors":"Boudewijn van Leeuwen, Zalán Tobak, F. Kovács, G. Sipos","doi":"10.1515/jengeo-2017-0008","DOIUrl":"https://doi.org/10.1515/jengeo-2017-0008","url":null,"abstract":"Abstract Inland excess water (IEW) is a type of flood where large flat inland areas are covered with water during a period of several weeks to months. The monitoring of these floods is needed to understand the extent and direction of development of the inundations and to mitigate their damage to the agricultural sector and build up infrastructure. Since IEW affects large areas, remote sensing data and methods are promising technologies to map these floods. This study presents the first results of a system that can monitor inland excess water over a large area with sufficient detail at a high interval and in a timely matter. The methodology is developed in such a way that only freely available satellite imagery is required and a map with known water bodies is needed to train the method to identify inundations. Minimal human interference is needed to generate the IEW maps. We will present a method describing three parallel workflows, each generating separate maps. The maps are combined to one weekly IEW map. At this moment, the method is capable of generating IEW maps for a region of over 8000 km2, but it will be extended to cover the whole Great Hungarian Plain, and in the future, it can be extended to any area where a training water map can be created.","PeriodicalId":115431,"journal":{"name":"Journal of Environmental Geography","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132186224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Droughts and low water levels in late medieval Hungary II: 1361, 1439, 1443-4, 1455, 1473, 1480, 1482(?), 1502-3, 1506: Documentary versus tree-ring (OWDA) evidence 中世纪晚期匈牙利的干旱和低水位II: 1361, 1439, 1443- 4,1455, 1473, 1480, 1482(?)， 1502-3, 1506:文献与树木年轮(OWDA)证据

Journal of Environmental Geography Pub Date : 2017-11-01 DOI: 10.1515/jengeo-2017-0012

A. Kiss

{"title":"Droughts and low water levels in late medieval Hungary II: 1361, 1439, 1443-4, 1455, 1473, 1480, 1482(?), 1502-3, 1506: Documentary versus tree-ring (OWDA) evidence","authors":"A. Kiss","doi":"10.1515/jengeo-2017-0012","DOIUrl":"https://doi.org/10.1515/jengeo-2017-0012","url":null,"abstract":"Abstract As a continuation of the first paper from the late medieval drought series related to medieval Hungary, we present, analyse and compare further late medieval drought data, based on contemporary direct and indirect written sources. The evidence derived from documentary sources referring to the droughts and dry spells in 1361, 1439, 1473, 1480, 1482(?), 1502-1503 and 1506 are further compared to the recent tree-ring based hydroclimate reconstruction of the OWDA (Old World Drought Atlas), and similarities, differences and complementary information are discussed in more detail. Additionally, documentary evidence related to Danube low water-levels of 1443, 1444, 1455 and 1502 are as well presented in a broader context: these cases provide evidence on the hydrological conditions of the Upper-Danube catchment, and not on the Carpathian Basin. The OWDA evidence in most cases shows good agreement with the discussed documentary-based drought reports, some differences in the spatial extension and intensity of the drought were only exceptionally detected (e.g. 1455, 1507). Most of the written documentation refer to droughts that covered more than one calendar years.","PeriodicalId":115431,"journal":{"name":"Journal of Environmental Geography","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115217788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 25

Landscape function analysis as a base of rural development strategies 景观功能分析:乡村发展战略的基础

Journal of Environmental Geography Pub Date : 2017-11-01 DOI: 10.1515/jengeo-2017-0009

Krisztina Filepné Kovács, Edina Dancsokné Fóris, I. Valánszki

{"title":"Landscape function analysis as a base of rural development strategies","authors":"Krisztina Filepné Kovács, Edina Dancsokné Fóris, I. Valánszki","doi":"10.1515/jengeo-2017-0009","DOIUrl":"https://doi.org/10.1515/jengeo-2017-0009","url":null,"abstract":"Abstract Research on ecosystem services and landscape functions are highly important in landscape ecology, landscape planning and open space design. The terms of ecosystem service and landscape function have been evolved parallel to each other in the scientific literature but have different focus. The term of landscape functions evolved from the scientific field of landscape ecology; it reflects the goods and services provided by regions, landscapes where the cultural, economic factors are important as well. As a framework assessment method with additional economic assessment, a landscape function analysis could be an additional tool of rural development, as it gives a complex analysis of multiple aspects, thus it is highly appropriate to explore, analyze the potentials, resources and limits of landscapes and land use systems. In the current research a landscape function analysis was compared with the rural development strategies in Hungarian micro-regions. We focused on the level of landscape functions and the objectives of the rural development strategies of the study areas. The local development strategies do not focus on territorial differences nor potentials evolving from natural, cultural resources or local constrains. The only exception is tourism development, where in some cases there is a holistic spatial approach which intends to develop the region as a whole.","PeriodicalId":115431,"journal":{"name":"Journal of Environmental Geography","volume":"133 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116267715","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Assessment of possible uncertainties arising during the hydromorphological monitoring of a Sand-Bedded Large River 沙层大河水文形态监测中可能出现的不确定性评估

Journal of Environmental Geography Pub Date : 2017-11-01 DOI: 10.1515/jengeo-2017-0010

Tamás Právetz, G. Sipos, Zsuzsanna Ladányi

{"title":"Assessment of possible uncertainties arising during the hydromorphological monitoring of a Sand-Bedded Large River","authors":"Tamás Právetz, G. Sipos, Zsuzsanna Ladányi","doi":"10.1515/jengeo-2017-0010","DOIUrl":"https://doi.org/10.1515/jengeo-2017-0010","url":null,"abstract":"Abstract The riverbed morphology of sand-bedded rivers is dynamically changing as a consequence of quasi continuous bedload transport. In the meantime, the dimension, size and dynamics of developing bedforms is highly depending on the regime of the river and sediment availability, both affected by natural and anthropogenic factors. Consequently, the assessment of morphological changes as well as the monitoring of riverbed balance is challenging in such a variable environment. In relation with a general research on the longer term sediment regime of River Maros, a fairly large alluvial river in the Carpathian Basin, the primary aim of the present investigation was to assess uncertainties related to morphological monitoring, i.e. testing the reproducibility of hydromorphological surveys and digital elevation model generation by performing repeated measurements among low water conditions on selected representative sites. Surveys were conducted with the combination of an ADCP sonar, GPS and total station. The most appropriate way of digital elevation modelling (DEM) was tested and 30-point Kriging was identified to be optimal for comparative analysis. Based on the results, several uncertainties may affect the reproducibility of measurements and the volumetric deviation of DEM pairs generated. The mean horizontal difference of survey tracks was 3-4 m in case of each site, however this could not explain all the DEM deviation. Significant riverbed change between measurements could also be excluded as the main factor. Finally, it was found that results might be affected greatly by systematic errors arising during motor boat ADCP measurements. Nevertheless, the observed, normalised and aggregated DEM uncertainty (600-360 m3/rkm) is significantly lower than the changes experienced between surveys with a month or longer time lag. Consequently, the developed measurement strategy is adequate to monitor long term morphological and sediment balance change on sand bedded large river.","PeriodicalId":115431,"journal":{"name":"Journal of Environmental Geography","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123684567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Suspended sediment and phosphorus budget and trophic status of Bukit Merah Reservoir, Perak, Malaysia 马来西亚霹雳州武吉美拉水库悬浮泥沙和磷收支及营养状况

Journal of Environmental Geography Pub Date : 2017-11-01 DOI: 10.1515/jengeo-2017-0007

Sumayyah Aimi Mohd Najib, W. Ismail, M. Omar

{"title":"Suspended sediment and phosphorus budget and trophic status of Bukit Merah Reservoir, Perak, Malaysia","authors":"Sumayyah Aimi Mohd Najib, W. Ismail, M. Omar","doi":"10.1515/jengeo-2017-0007","DOIUrl":"https://doi.org/10.1515/jengeo-2017-0007","url":null,"abstract":"Abstract Bukit Merah Reservoir (BMR) is one of the 51 impoundments in Malaysia. BMR is the oldest reservoir built in the early 1900s originally to store water for irrigation, but nowadays its functions include also flood control and water supply. Nowadays, it is threatened by land use change in the upper catchments and surrounding activities, which feeding eroded material and chemicals into the reservoir. Suspended sediment, as well as, nutrient fluxes into BMR are becoming an increasing threat to the reservoir, as its sedimentation and eutrophication accelerate. This paper discusses our study on the BMR carried out between March 2008 and April 2009 to assess the water quality status, and to determine the sediment and Total Phosphorus (TP) influx into the south pool lake. An estimated amount of suspended sediment fluxes of about 2,900 t year−1 came from the north pool lake (18%) and 12,900 t year−1 from the main Kurau River inlet (82% of the total input to the BMR). Of these total sediment input (nearly 15,800 t) about 5,600 t (36%) of the total sediment influx was trapped in the BMR. TP influx was about 18.8 t year−1 and about 7 t (37%) was trapped in the reservoir. The amount sediment and TP stored in the BMR affect the water quality of the lake, therefore the mean trophic state of the lake is eutrophic (TSI of 54.4) related to high productivity. Increasing sediment input into the reservoir has affected the reservoir volume and frequent flooding down-stream of the reservoir during rainy seasons, while eutrophication has caused the lake water quality deterioration.","PeriodicalId":115431,"journal":{"name":"Journal of Environmental Geography","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129944932","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Centurial Changes in the Depth Conditions of a Regulated River: Case Study of the Lower Tisza River, Hungary 受管制河流深度条件的世纪变化:以匈牙利蒂萨河下游为例

Journal of Environmental Geography Pub Date : 2017-04-25 DOI: 10.1515/jengeo-2017-0005

G. J. Amissah, T. Kiss, K. Fiala

{"title":"Centurial Changes in the Depth Conditions of a Regulated River: Case Study of the Lower Tisza River, Hungary","authors":"G. J. Amissah, T. Kiss, K. Fiala","doi":"10.1515/jengeo-2017-0005","DOIUrl":"https://doi.org/10.1515/jengeo-2017-0005","url":null,"abstract":"Abstract The Tisza River is the largest tributary of the Danube in Central Europe, and has been subjected to various human interventions including cutoffs to increase the slope, construction of levees to restrict the floodplain, and construction of groynes and revetments to stabilize the channel. These interventions have altered the natural morphological evolution of the river. The aim of the study is to assess the impacts of these engineering works, employing hydrological surveys of 36 cross sections (VO) of the Lower Tisza River for the years of 1891, 1931, 1961, 1976 and 1999. The changes in mean depth and thalweg depth were studied in detail comparing three reaches of the studied section. In general, the thalweg incised during the studied period (1891-1931: 3 cm/y; 1931-1961: 1.3 cm/y and 1976-1999: 2.3 cm/y), except from 1961-1976 which was characterized by aggradation (2 cm/y). The mean depth increased, referring to an overall deepening of the river during the whole period (1891-1931: 1.4 cm/y; 1931-1961: 1.2 cm/y; 1961-1976: 0.6 cm/y and 1976-1999: 1.6 cm/y). The thalweg shifted more in the upper reach showing less stabile channel, while the middle and lower reaches had more stable thalweg. Although the cross-sections subjected to various human interventions experienced considerable incision in the short-term, the cross-sections free from direct human impact experienced the largest incision from 1891-1999, especially along the meandering sections.","PeriodicalId":115431,"journal":{"name":"Journal of Environmental Geography","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134279848","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Impacts of Stone Mining and Crushing on Stream Characters and Vegetation Health of Dwarka River Basin of Jharkhand and West Bengal, Eastern India 印度东部贾坎德邦和西孟加拉邦德瓦尔卡河流域采石破碎对河流特征和植被健康的影响

Journal of Environmental Geography Pub Date : 2017-04-25 DOI: 10.1515/jengeo-2017-0002

Swades Pal, Indrajit Mandal

{"title":"Impacts of Stone Mining and Crushing on Stream Characters and Vegetation Health of Dwarka River Basin of Jharkhand and West Bengal, Eastern India","authors":"Swades Pal, Indrajit Mandal","doi":"10.1515/jengeo-2017-0002","DOIUrl":"https://doi.org/10.1515/jengeo-2017-0002","url":null,"abstract":"Abstract Dwarka River basin (3882.71 km2) of Eastern India in the Chotonagpur Plateau and Gangetic Plain is highly affected by stone mining and crushing generated dust. In the middle catchment of this basin, there are 239 stone mines and 982 stone crushing units. These produce approximately 258120 tons of dust every year and this dust enters into the river and coats the leaves of plants. On the one hand, this is aggrading in the stream bed, increasing sediment load, decreasing water quality, specifically increasing total dissolved solid, pH, water colour, and it also degrades the vegetation quality. Vegetation quality is also degraded as indicated by decreasing of NDVI values (maximum NDVI in 1990 was 0.70 and in 2016 it was 0.48). Considering all these issues, the present paper intends to identify dust vulnerable zones based on six major driving parameters and the impact of the dust on river morphology, water quality and vegetation quality in different vulnerable zones. Weighted linear combination method (in Arc Gis environment) is used for compositing the selected parameters and deriving vulnerable zones. Weight to the each parameter is assigned based on analytic hierarchy process, a semi quantitative method. According to the results, 579.64 km2 (14.93%) of the catchment area is very highly vulnerable: Here 581 rivers have a length of 713 km and these riversare prone to high dust deposition, increased sediment load and water quality deterioration.","PeriodicalId":115431,"journal":{"name":"Journal of Environmental Geography","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128418174","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 15

Hydrocarbon Pollution and Potential Ecological Risk of Heavy Metals in the Sediments of the Oturuba Creek, Niger Delta, Nigeria 尼日利亚尼日尔三角洲Oturuba河沉积物中重金属污染及潜在生态风险

Journal of Environmental Geography Pub Date : 2017-04-25 DOI: 10.1515/jengeo-2017-0001

C. Ezekwe, Israel Clinton Utong

引用次数: 5

Groundwater: Quality Levels and Human Exposure, SW Nigeria 地下水:质量水平和人类接触，尼日利亚西南部

Journal of Environmental Geography Pub Date : 2017-04-25 DOI: 10.1515/jengeo-2017-0003

A. Olusola, O. Adeyeye, O. Durowoju

{"title":"Groundwater: Quality Levels and Human Exposure, SW Nigeria","authors":"A. Olusola, O. Adeyeye, O. Durowoju","doi":"10.1515/jengeo-2017-0003","DOIUrl":"https://doi.org/10.1515/jengeo-2017-0003","url":null,"abstract":"Abstract Groundwater serves as a source of freshwater for agricultural, industrial and domestic purposes and it accounts for about 42%, 27% and 36% respectively. As it remains the only source of all-year-round supply of freshwater globally, it is of vital importance as regards water security, human survival and sustainable agriculture. The main goal of this study is to identify the main cause-effect relationship between human activities and the state of groundwater quality using a communication tool (the DPSIR Model; Drivers, Pressures, State, Impact and Response). A total of twenty-one samples were collected from ten peri-urban communities scattered across three conterminous Local Government Areas in Southwestern Nigeria. Each of the groundwater samples was tested for twelve parameters - total dissolved solids, pH, bicarbonate, chloride, lead, electrical conductivity, dissolved oxygen, nitrate, sulphate, magnesium and total suspended solids. The study revealed that the concentrations of DO and Pb were above threshold limits, while pH and N were just below the threshold and others elements were within acceptable limits based on Guidelines for Drinking Water Quality and Nigeria Standard for Drinking Water Quality. The study revealed that groundwater quality levels from the sampled wells are under pressure leading to reduction in the amount of freshwater availability. This is a first-order setback in achieving access to freshwater as a sustainable development goal across Less Developed Communities (LDCs) globally. To combat this threat, there is the need for an integrated approach in response towards groundwater conservation and sustainability by all stakeholders.","PeriodicalId":115431,"journal":{"name":"Journal of Environmental Geography","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132974017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 18

Dating the Holocene Incision of the Danube in Southern Hungary 匈牙利南部多瑙河全新世切口的年代测定

Journal of Environmental Geography Pub Date : 2017-04-25 DOI: 10.1515/jengeo-2017-0006

O. Tóth, G. Sipos, T. Kiss, Tamás Bartyik

{"title":"Dating the Holocene Incision of the Danube in Southern Hungary","authors":"O. Tóth, G. Sipos, T. Kiss, Tamás Bartyik","doi":"10.1515/jengeo-2017-0006","DOIUrl":"https://doi.org/10.1515/jengeo-2017-0006","url":null,"abstract":"Abstract The alluvial development of the Great Hungarian Plain has greatly been determined by the subsidence of different areas in the Pannonian Basin. The temporal variation of subsidence rates significantly contributed to the avulsion and shifting of main rivers. This was the case in terms of the Hungarian Lower Danube when occupying its present day N-S directional course. The considerable role of tectonic forcing is also supported by the presence of different floodplain levels. Although, several channel forms are identifiable on these the timing of floodplain development has been reconstructed up till now mostly by the means of geomorphological analysis, and hardly any numerical dates were available. The main aim of this study is to provide the first OSL dates for palaeo-channels located on the high floodplain surface of the Hungarian Lower Danube, and to determine the maximum age of low and high floodplain separation on the Kalocsa Plain. For the analysis two meanders were sampled close to the edge of the step slope between the two levels. According to the results, the development of the investigated palaeo-meanders could be rapid. The formation of the older meander was dated to the Late Atlantic, while the possible separation of the high and low floodplain surfaces could start in the beginning of the Subboreal Phase.","PeriodicalId":115431,"journal":{"name":"Journal of Environmental Geography","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132168500","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6