Multidimensional Toxicity of Rhamnolipid Extracts Obtained From Creosote‐Contaminated Soil          下载免费PDF全文

Zuzanna Sydow  Piotr Lisiecki  Justyna Staninska‐Pięta  Anna Olejnik  Paweł Cyplik  Agnieszka Zgoła‐Grześkowiak  Roman Marecik  Jacek Nowak  Katarzyna Glazar  Agnieszka Piotrowska‐Cyplik 《洁净——土壤、空气、水》2018,46(5)

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Glaciokarst landforms and processes of the southern Dinaric Alps          下载免费PDF全文

Manja Žebre  Uroš Stepišnik 《地球表面变化过程与地形》2015,40(11):1493-1505

Glaciokarst is a landscape which combines karst features and hydrology as well as inherited glacial features. It is a result of glaciation upon a karst geomorphological system. The relationship between glaciers and karst is rather poorly known and inadequately recognized. This research focuses on three distinct karst areas along the Adriatic coast in the southern Dinaric Alps that were affected by the Quaternary glaciations. An insight into specific glaciokarst processes and surface features was provided through the study of the areas of the Lov?en, Orjen and Vele? Mountains. A glaciokarst geomorphology is in general well preserved due to the prevailing vertically oriented chemical denudation following de‐glaciation and almost the entire absence of other surface processes. Typical glacial erosional features are combined by a variety of depressions which are the result of a karstic drainage of sub‐glacial waters. The majority of glacial deposits occur as extensive lateral‐terminal moraine complexes, which are often dissected by smaller breach‐lobe moraines on the external side of the ridge. Those moraine complexes are likely to be a product of several glacial events, which is supported by complex depositional structures. According to the type of glacial depositional features, the glaciers in the study areas were likely to have characteristics of moraine‐dammed glaciers. Due to vertical drainage ice‐marginal fluvial processes were unable to evacuate sediment. Fluvial transport between glacial and pro‐glacial systems in karst areas is inefficient. Nevertheless, some sediment from the glacier margin is washed away by the pro‐glacial streams, filling the karst depressions and forming piedmont‐type poljes. Copyright © 2015 John Wiley & Sons, Ltd.  相似文献   

Changes in Enzyme Activities and Microbial Community Structure in Heavy Metal‐Contaminated Soil under in Situ Aided Phytostabilization          下载免费PDF全文

Daniel Wasilkowski  Agnieszka Mrozik  Zofia Piotrowska‐Seget  Jacek Krzyżak  Marta Pogrzeba  Grażyna Płaza 《洁净——土壤、空气、水》2014,42(11):1618-1625

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ECHOBASE—A portable geographic fishery research database system     

Andrzej Stepnowski  Janusz Burczyński  Marek Ostrowski  Marek Moszynski  Jacek Lenkiewicz  Andrzej Partyka 《Marine Geodesy》2013,36(3):269-280

A geographic fishery research database system (GFRDBS), called ECHOBASE, for storing and management of data on pelagic fish resources from acoustic surveys and catch samples, combined with environmental data in a geographic context, has been developed. The system constitutes a portable and inexpensive yet powerful tool for fishery research and environmental monitoring and provides on‐board data processing and mapping capabilities.

Data are acquired from an echosounder, echo signal processor, environmental profiler (CTD probe), and Global Positioning System (GPS) receiver. The electronic digitized maps (based on C‐MAP public format files) provide active on‐screen nautical charts.

The basic GFRDBS platform is a portable PC 486 machine, which is used as an on‐board data acquisition and processing tool running under MS Windows 3.1 operating environment. The system is designed around the Borland's PARADOX package, which provides a relational database for managing acoustic, catch, and environmental data. The ECHOBASE programs were written in Borland C ++ language as a Windows application.  相似文献   

Hydrologic and sedimentologic aspects of mining aggregate from the shipsk bank (Baltic sea)     

L. S. Gajewski  S. Uścinowicz 《Marine Georesources & Geotechnology》2013,31(3):229-244

Abstract

Investigations aimed at obtaining knowledge about the environmental effects of mining aggregate from the sea bottom were carried out on the Stupsk Bank. Special attention was given to the magnitude and reach of changes of hydrologic conditions, in that to changes in concentration of matter suspended in sea water, and to dynamics of the sea bottom—change of bottom relief, resulting from both natural causes and from mining of the aggregate.  相似文献   

Dead Sea Basin Imaged by Ambient Seismic Noise Tomography     

Jacek?StankiewiczEmail author  Michael?H.?Weber  Ayman?Mohsen  Rami?Hofstetter 《Pure and Applied Geophysics》2012,169(4):615-623

In the framework of the Dead Sea Integrated Research project (DESIRE), 59 seismological stations were deployed in the region of the Dead Sea Basin. Twenty of these stations recorded data of sufficiently high quality between May and September 2007 to be used for ambient seismic noise analysis. Empirical Green’s functions are extracted from cross-correlations of long term recordings. These functions are dominated by Rayleigh waves, whose group velocities can be measured in the frequency range from 0.1 to 0.5 Hz. Analysis of positive and negative correlation lags of the Green’s functions makes it possible to identify the direction of the source of the incoming energy. Signals with frequencies higher than 0.2 Hz originate from the Mediterranean Sea, while low frequencies arrive from the direction of the Red Sea. Travel times of the extracted Rayleigh waves were measured between station pairs for different frequencies, and tomographically inverted to provide independent velocity models. Four such 2D models were computed for a set of frequencies, all corresponding to different sampling depths, and thus together giving an indication of the velocity variations in 3D extending to a depth of 10 km. The results show low velocities in the Dead Sea Basin, consistent with previous studies suggesting up to 8 km of recent sedimentary infill in the Basin. The complex structure of the western margin of the Basin is also observed, with sedimentary infill present to depths not exceeding 5 km west of the southern part of the Dead Sea. The high velocities associated with the Lisan salt diapir are also observed down to a depth of ~5 km. The reliability of the results is confirmed by checkerboard recovery tests.  相似文献   

Differences in the abiotic parameters of water in coastal lakes in the light of the EU water framework directive: An example of the Polish southern Baltic coast     

Roman Cieśliński  Maciej Major 《Acta Geophysica》2012,60(4):1159-1179

Coastal lakes have a specific hydrological regime determined by the influence of sea and inland water and the local hydrographic conditions. There are several problems concerning the protection and assessment of water quality of these bodies. The most important features differentiating coastal lakes from other lakes are: high salinity, a wide range of seasonal and short-term water quality changes, and specific aquatic ecosystems adapted to these conditions. These matters have not been sufficiently taken into account in the existing classifications and typologies of lakes in Poland. The problem has not been solved by the establishment of the adequate reference conditions and new guidelines for the classification of water status (which are being prepared according to the Common Strategy for the Implementation of the Water Framework Directive) regarding inland surface waters (rivers and lakes) and marine waters (coastal and transitional). An important issue is to define criteria which would help to distinguish all those hydrographic objects and to establish water quality standards for them.  相似文献   

Specific features of water circulation and biogenic substance transformation and transport in Tatar Strait (Sea of Japan): Assessment based on the results of mathematical modeling     

A. V. Leonov  V. M. Pishchal’nik  V. S. Arkhipkin  O. V. Chicherina 《Water Resources》2010,37(4):528-564

This study has no analogues in terms of methodology, as it uses three electronic instruments for studying the oceanographic regime of Tatar Strait. GIS “Sakhalin Shelf” was used to reconstruct annual variations in hydrological and hydrochemical characteristics of the marine environment at standard horizons of oceanographic stations in fixed geographic coordinates. An adapted version of the Oceanic Model created in Bergen University was used to reconstruct the spatial and temporal distribution of seawater temperature and salinity, to calculate the density and the circulation rate of water masses and water exchange parameters between the strait and nearby water areas and between regions within the strait. The hydroecological CNPSi-model was next used to assess the annual dynamics of concentrations of biogenic element compounds; the biomasses, biohydrochemical activity, and bioproductivity of microorganisms (heterotrophic bacteria, three phytoplankton and two zooplankton groups), involved in transformation of biogenic substances, as well as the internal fluxes of biogenic substances, governed by microorganism activity and the external load onto the marine ecosystem. Analysis of calculation results made it possible to reveal new features in water circulation in the strait (including those for winter) and, for the first time, to analyze the transport regime of biogenic substances through the external boundaries of Tatar Strait and through the boundaries of three regions identified within the strait.  相似文献   

Atmospheric and Surface Water Pollution Interpretation in the Gdańsk Beltway Impact Range by the Use of Multivariate Analysis     

Aleksandra Dubiella‐Jackowska  Aleksander Astel  aneta Polkowska  Wojciech Staszek  B&#x;aej Kud&#x;ak  Jacek Namienik 《洁净——土壤、空气、水》2010,38(9):865-876

The present study deals with the application of the hierarchical cluster analysis and non‐parametric tests in order to interpret the Gdańsk Beltway impact range. The data set represents concentration values for major inorganic ions (Na⁺, NH, K⁺, Mg²⁺, Ca²⁺, F⁻, Cl⁻, NO, and SO) as well as electrolytic conductivity and pH measured in various water samples [precipitation, throughfall water, road runoff, and surface water (drainage ditches, surface water reservoirs, and spring water)] collected in the vicinity of the beltway. Several similarity groups were discovered both in the objects and in the variables modes according to the water sample. In the majority of cases clear anthropogenic (fertilizers usage and transport, road salting in winter) and semi‐natural (sea salt aerosols, erosion of construction materials) impacts were discovered. Spatial variation was discovered for road runoff samples and samples collected from surface water reservoirs and springs. Surprisingly no clear seasonal variability was discovered for precipitation chemistry, while some evidences for existing of summer and winter specific chemical profile was discovered for road runoff samples. In general, limited range of the Gdańsk Beltway impact was proven.  相似文献   

M-Split Estimation in Laser Scanning Data Modeling     

Artur Janowski  Jacek Rapinski 《Journal of the Indian Society of Remote Sensing》2013,41(1):15-19

This paper proposes a new approach to 3D modeling on the basis of laser scanner data. It presents the attempt to automatically detect two planes and an edge in one processing algorithm. The algorithm is based on the M _split estimation, which is a recently developed regression method of multi functional models. Plane equations in three dimensional space are derived on the basis of the presented method. M _split estimation divides the functional model of least squares adjustment in particular into two groups. Both simulated and real data from airborne laser scanning is tested to present the results. In each case the mehod gave good results which encourages for further work on the application of this method for 3D modeling.  相似文献