PD Dr. agr. Frank Riesbeck

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Zusammenfassung

Frank Riesbeck ist Experte für Umweltbelastungen und Bodensanierung, insbesondere in Kontexten von Industriealtlasten, Bergbau und Landnutzungsveränderungen. Seine Forschung verbindet ökologische Feldstudien mit praktischen Lösungsansätzen zur Rekultivierung belasteter Standorte und zur Bewertung von Umweltrisiken durch Verschmutzung und Nutzungsintensivierung.

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Name

PD Dr. agr. Frank Riesbeck

Titel

PD Dr. agr.

Fakultät

Lebenswissenschaftliche Fakultät

Institut

Albrecht Daniel Thaer-Institut für Agrar- und Gartenbauwissenschaften

Arbeitsgruppe

Pflanzenernährung

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  Zeitraum: 08/2005 - 08/2006 Projektleitung: PD Dr. agr. Frank Riesbeck

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• Vegetation of the Ash Dump of the "Kosova A" Power Plant and the Slag Dump of the "Ferronikeli" Smelter in Kosovo

  2012

  12 Zitationen

  This study presents the results of a study on the flora and vegetation associated with the ash dumpof the Kosova A power plant and with a slag dump of a Ferronikeli smelter. With time, vegetation redeveloped on these dumps as a result of natural succession. In the ash dump of the Kosova A power plant, a total of 125 species were recorded (belonging to 29 families and 93 genera), whereas 72 species (belonging to 24 families and 58 genera) were recorded in the slag dump of the Ferronikeli smelter. Twenty-eight species were recorded in both locations. In the old parts of the ash dump of the Kosova A power plant, plants had established communities where three plant associations were recorded ( Echio-Melilotetum Tx. 1942, Bromo-Sambucetum ebuli Br.-Bl. and Sisymbrio-Diplotaxidietum tenuifolia). The process of vegetation development at the ash disposal site indicates that natural colonisation had established the plant communities, which will provide protection against erosion and dust dispersion by wind.

• São Tomé Island Endemic Treefrogs ( <i>Hyperolius</i> spp.) and Land-Use Intensification: A Tale of Hope and Caution

  2018

  Tropical Conservation Science · 10 Zitationen · DOI

  Forest degradation is a major driver of the global biodiversity declines. However, responses to forest degradation vary greatly between taxa and are predominantly understudied. This study investigates the effects of land-use change on the endemic amphibian fauna of São Tomé Island (Central Africa), where a fast-growing human population increases pressure on forest resources. We sampled acoustic data on reed frog ( Hyperolius spp.) abundance at eight transects in each of four land-use categories, representing different levels of forest degradation: old-growth forest, secondary forest, agroforest, and horticulture. While Hyperolius molleri was most abundant in secondary forest and horticulture, Hyperolius thomensis was almost exclusively found in agroforest. We interpret these differences based on reproductive traits, since both species deposit terrestrial eggs and have aquatic larvae, but reproduce in different microhabitats. H. molleri utilizes open water bodies bordered by vegetation for calling and oviposition, which human disturbance has made available in secondary forest and horticulture. In contrast, H. thomensis breeds in water-filled tree holes (phytotelmata), which predominantly occurred in agroforest, often within coral trees ( Erythrina spp.). This first study on Santomean amphibian abundances revealed that H. molleri and H. thomensis males exhibit distinct nonlinear responses to forest degradation and may reap some benefit from human habitat alteration. However, despite their apparent tolerance to some anthropogenic disturbance, further land-use intensification may reduce overall habitat suitability for these and other endemic species.

• The impacts of irrigation and groundwater drainage induced salinity and overflooding of evaporation ponds in Khuzestan, Iran

  2025

  Frontiers in Water · 6 Zitationen · DOI

  Salinity threatens agricultural productivity in Khuzestan, Iran, where irrigation and groundwater drainage exacerbate soil and water salinity. This study evaluates the impact of salinity and evaporation ponds on water management, focusing on the balance between discharge and inflow thresholds in a lagoon system. The study area in southwestern Khuzestan receives drainage from agriculture, industry, and fish farming. Groundwater discharge was estimated using hydrological models, and the lagoon’s inflow threshold was calculated based on evaporation rates adjusted for salinity. Data from 134 boreholes assessed groundwater depth and salinity. The result revealed that saline groundwater stays at a shallow level above the ground in the agricultural production area and is brought to the lagoon by the inappropriate layout of the drainage system, resulting in the phenomenon of over-flooding in the study area. The overall discharge flows at a rate of 84.63 m 3 /s compared to the inflow threshold of 21.17 m 3 /s, and the disequilibrium is mainly caused by unexpected saline groundwater and frequent exchanges of pond water in fish farms. The study highlights inefficiencies in water governance, particularly poor drainage system design and rapid fish farm expansion. Saline groundwater exacerbates soil salinity, reducing agricultural productivity. Improved salinity control, stricter regulations on fish farm water exchange, and enhanced groundwater management are essential for sustainable water resource management.

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