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Copyright of BHM Berg- und Hüttenmännische Monatshefte is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The provisions of the planning approval for the Gotthard Base Tunnel required more than 1, 000 environmental measures for the Amsteg and Erstfeld sections, arranged in 80 detail projects. The environmental aspect was also of great significance for the client. Therefore AlpTransit Gotthard AG provided sufficient resources to be able to implement the project successfully from the environmental point of view. The article is concentrated on selected aspects and explains their special features. The integration of environmental monitoring into the local construction supervision team; soil protection and cultivation; the problem of nitrite in the site wastewater; and dust and noise emissions are dealt with in detail, along with the ecological opportunities of a large construction site. A description of the usual conditions and measures affecting a tunnel site is intentionally omitted. Die Plangenehmigungsverfügungen zum Gotthard-Basistunnel sahen für die Teilabschnitte Amsteg und Erstfeld mehr als 1.000 Umweltmaßnahmen vor, die in 80 Detailprojekten eingeordnet waren. Der Umweltaspekt war auch für die Bauherrschaft von hoher Bedeutung. Daher setzte die AlpTransit Gotthard AG genügend Ressourcen zur Verfügung, um das Projekt auch aus Umweltsicht erfolgreich umsetzen zu können. Der Beitrag konzentriert sich auf ausgewählte Aspekte und zeigt deren Besonderheiten auf. Im Einzelnen werden die Integration der Umweltbaubegleitung in die örtliche Bauleitung, der Bodenschutz und die Rekultivierung, die Nitritproblematik im Baustellenabwasser, Staub- und Lärmemissionen sowie die ökologische Chancen einer Großbaustelle behandelt. Auf eine Darstellung der üblichen Auflagen und Maßnahmen bei einer Tunnelbaustelle wird bewusst verzichtet. [ABSTRACT FROM AUTHOR]

40 years ago a continuous application trial to agricultural recultivation on extremely acid, lignite- containing dump-loamy-sand was established. The main aim was to investigate the effects of perennial waste water treatments in combination with different high lime- and ash applications to the soil and yield development. This study reported about the ratios of acid- and base saturation as well as the acid-base- status of ameliorated post coal mining soils. The penological investigations presented confirm a statement as follows: A sustainable improvement of the acidity circumstances of sulphur containing post-coal mining soils is only possible if the solicited input of lime is derived from their acid-base- account to pH ⩾ 5.0-5.5 and a soil layer more than 60 cm. [ABSTRACT FROM AUTHOR]

Reclamation of acid sulphurous substrates of lignite mining needs amelioration with limestone. Good agronomic results are achieved with an amelioration depth of 100 cm. However, in reclamation practice the result of amelioration is often insufficient. Therefore, on the basis of a field experiment technological aspects of amelioration, especially of limestone incorporation, are discussed. On sandy mine soils a working depth of 100 cm is achieved with conventional deep rotary tillers. In contrast, even under favourable conditions none of the tested tillers ensures an adequate incorporation depth of limestone. With respect to the acidification potential of the substrates sufficient amounts of limestone are incorporated to a depth of 60 cm, below there is no appreciable effect on pH at present. [ABSTRACT FROM AUTHOR]

In the years 1995 to 1997, following recultivation activities, investigations refering to the colonisation by ground beetles were lead through at four sites in the open-cast mining area K¨onigsaue by means of pitfall traps. Altogether 74 species could be proved, 19% of these species are considered as endangered. The occurrence of the tiger beetle Cicindela arenaria viennensis is remarkable for nature conservation reasons, because this species is threaten by extinction in Germany. The most frequent species in the exhausted open-cast mining area were Calathus ambiguus and Bembidion femoratum. On a site nearly without any vegetation Amara fulva belonged to the dominant species. Species- and dominance-identities between the ground beetle communities of the four sites were low. Also the species turnover between the years of investgation was relatively high. A Benjes-hedge, which was planted in 1996, was investigated additionally. Pitfall trap catches within stands of various crops (winter wheat, summer wheat, maize, peas, sugar beet) nearby the open-cast mining area were carried out in 1995 to 1997 as well. The fields were treated conventionally on tschernosem soils and peaty soils. 67 species of ground beetles were registrated in the fields. The results with regard to species composition and dominance structure resembled those which had been obtained in former investigations lead through near Halle (Saale) and Obhausen (Querfurter Platte). On the peaty soils Dyschirius globosus was very numerous, whereas it was not found on the other fields. An extremly high activity density of ground beetles with more than 20 individuals per day and pitfall trap could be observed in a sugar beet field near Schadeleben. Additional investigations on field edges at another site were realized in 1996. As a whole in the cause of this research 101 species of ground beetles could be proved in the district Aschersleben-Staßfurt, among these many endangered species. [ABSTRACT FROM AUTHOR]

Copyright of Forstwissenschaftliches Centralblatt is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Forstwissenschaftliches Centralblatt is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)