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Netherlands-Wetlands - Proceedings of a Symposium held in Arnhem, The Netherlands, December 1989 (Hardcover, Reprinted from... Netherlands-Wetlands - Proceedings of a Symposium held in Arnhem, The Netherlands, December 1989 (Hardcover, Reprinted from HYDROBIOLOGIA, 265, 1993)
E.P.H. Best, Jan P. Janssen
R5,531 Discovery Miles 55 310 Ships in 10 - 15 working days

This book is a compilation of most of the seminars presented during a symposium held in Arnhem, the Netherlands. The introduction treats not only the Netherlands as wetland in a larger landscape but also the various wetland types within the country itself. The subsequent case studies concern representative wetland types. Both introduction and case studies give an historical, hydrological, physicochemical and biotic characterization of the wetland concerned as well as a description of management measures in the past and in the present; summarize the threats to the systems; and indicate prospects for the ecosystems, given the present environmental conditions and expectations for short and long term changes. In the introduction special attention is paid to the border-crossing biotic elements, such as birds. These sections are followed by a summary of the ecology of the Netherlands wetlands and indications for future ecological research. Finally, the environmental policy and its consequences for management on a national, regional and local scale are discussed.

Nature Management by Grazing and Cutting - On the ecological significance of grazing and cutting regimes applied to restore... Nature Management by Grazing and Cutting - On the ecological significance of grazing and cutting regimes applied to restore former species-rich grassland communities in the Netherlands (Hardcover, 1989 ed.)
Jan P. Janssen
R5,601 Discovery Miles 56 010 Ships in 10 - 15 working days

A. Background and scope of the study ...3 1. General ..." ,-, ...11 B. Abandoned and marginal agricultural grasslands ...5 2. Some equilibrium models explaining species di- 1. Definition ...5 versity ., ..., ,-..., ...11 2. Inland areas in western Europe ...6 3. Change of the steady state .. , .. , ...14 3. Ca. stal areas in western Europe ...8 4. Dispersal of plant species ..., ,- 14 C. Nature mc.nagement practices ...10 5. 'Ecotypic' diversity .. , ...15 D. Theoretical considerations on nature management 6. Patterns in plant communities ...15 with special reference to diversity ...7...,. 11 Implications for management 16 LA. Background and scope of the study (Klapp, 1965), Belgium (Van Hecke, Impens & Behaeghe, 1981) and the Netherlands (Oomes & The degradation of flora and vegetation in natural Mooi, 1981; Elberse, Van Den Bergh & Dirven, and semi-natural landscapes has become a matter 1983; Willems, 1983A).

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