Nature protection in agricultural landscapes by setting aside unproductive areas and ecotones within arable fields (“Infield Nature Protection Spots”)

Berger, Gert; Pfeffer, Holger; Kächele, Harald; Andreas, S; Hoffmann, Jörg

doi:10.1078/1617-1381-00051

Cited by 22 publications

(16 citation statements)

References 4 publications

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“…However, their water quality and habitat function often are highly impaired by intensive land use practices. In Germany, kettle holes are protected by law, but there is still a need to develop effective conservation and management strategies (Kalettka et al, 2001;Berger et al, 2003;Kalettka & Rudat, 2006;Westendorff et al, 2008). Similar situations were observed in other pond landscapes of Europe (Declerck et al, 2006;Davis et al, 2008;Oertli et al, 2009) and Northern US (Kantrud et al, 1989).…”

Section: Introductionmentioning

confidence: 97%

Grasping the heterogeneity of kettle hole water quality in Northeast Germany

Lischeid

Kalettka

2011

Hydrobiologia

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In the young moraine landscape in Northeast Germany, small glacially created ponds, the so-called kettle holes, are very abundant. They exhibit large spatial heterogeneity, seemingly rendering each kettle hole unique. However, this would not be consistent with any scientific approach. Thus, a classification scheme has been developed for kettle holes in Northeast Germany based on morphology, hydrodynamics and connection to stream networks of the kettle holes as well as size, topography and land use of the respective catchment. These indices are assumed to be related both to water quality as well as to biological issues of the kettle holes. Starting in the mid-1990s, an extensive monitoring program has been established in the federal state of Brandenburg, Germany. In this study, a subset comprising 1,316 samples from 79 kettle holes was analysed, where 21 parameters had been determined. Sampling intervals varied widely, and were between bi-weekly and three-monthly at most sites. A nonlinear principal component analysis was performed. The first four components explained 90% of the variance. These components seem to provide quantitative measures of phosphorus release from the sediments during hypoxic periods, agricultural solute input, algae primary production, and geogenic compounds. This allowed differentiating between the natural and anthropogenic impact factors on water quality. In addition, scores of single components were related to properties of the kettle holes and their environments. The results contribute to a better understanding of biological and biogeochemical processes and can be used to verify the effects of conservation and management strategies for kettle holes.

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Section: Introductionmentioning

confidence: 97%

Grasping the heterogeneity of kettle hole water quality in Northeast Germany

Lischeid

Kalettka

2011

Hydrobiologia

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“…Although kettle holes in Germany have recently been given legal protection, the current protection strategies are inadequately specific with respect to the potential habitat functions of the different kettle hole types, which in turn depends on the specific influence of environmental factors (Kalettka et al 2001;Berger et al 2003Berger et al , 2010. Hence, kettle hole protection requires a more holistic approach than has been implemented to date.…”

Section: Introductionmentioning

confidence: 99%

What governs macrophyte species richness in kettle hole types? A case study from Northeast Germany

et al. 2012

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a b s t r a c tKettle holes are small, pond-like, depressional wetlands in young moraine landscapes. They mostly undergo a wet-dry cycle and have a high potential for biological species diversity. However, their biodiversity and habitat function is often greatly impacted by surrounding intensive agricultural land use practices.In this study, we used statistical analysis of a large data set from the federal state of Brandenburg (Northeast Germany) to characterise the macrophyte species richness of kettle holes in an interregional context and to determine the factors that influence macrophyte occurrence. We proposed that (1) specific environmental factors, (2) hydrogeomorphic kettle hole types and (3) the regional topography have a major impact on macrophyte species richness. The evaluation of the data was performed using the General Linear Model (GLM) and Canonical Correspondence Analysis (CCA). Each of the analysed factors addresses different parts of the macrophyte species richness, including the target variables overall species richness, plant life and growth forms as well as Red List species.None of the analysis showed effects of the tested environmental factors on overall macrophytes species richness, but on the richness of plant life and growth forms as well as on Red List species. We identified hydroperiod, depth, shore width, kettle hole area, pH, electric conductivity, carbonate hardness and oxygen as key factors for the prediction of species richness of plant life and growth forms. Furthermore, we demonstrate that hydrogeomorphic kettle hole types account for relevant parts of variation in species richness and are useful interregional and integrative indicators to identify kettle holes with protection priority for macrophytes.

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“…Between 1998 and 2004, the conservation set-aside approach was developed in theory and tested in practice in collaboration with farmers in Brandenburg (Germany) (Berger et al, 2003(Berger et al, , 2006a. The aim of Phase II of that project was to transfer the ideas and experiences from Brandenburg to other states within Germany and to investigate the willingness and attitudes of farmers regarding the implementation of the concept of nature conservation set-aside.…”

Section: Survey Of Farmersmentioning

confidence: 99%

“…Thus, despite growing renewable primary products on about one third of this land, in Germany a considerable amount of land is potentially available for achieving nature conservation objectives (Deutscher Bauernverband, 2006). The areas of arable land most suitable for conservation set-aside are those with low soil quality (Berger et al, 2003(Berger et al, , 2006a(Berger et al, , 2006b.…”

Section: Introductionmentioning

confidence: 99%

“…On this set-aside land, specific management activities create ecologically valuable habitats. This concept was developed for the state of Brandenburg and also tested there (Berger et al, 2003(Berger et al, , 2006a. Based on the results of that research, we conducted a survey in four largely agricultural regions of Germany to examine what types of problems farmers encounter in the course of implementing this concept.…”

Section: Introductionmentioning

confidence: 99%

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