Theme Ecological Restoration Of Aquatic And Semi Aquatic Ecosystems In The Netherlands Nw Europe
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| Author | : P.H. Nienhuis |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 239 |
| Release | : 2013-03-14 |
| Genre | : Science |
| ISBN | : 9401713359 |
This work presents the state of the art of aquatic and semi-aquatic ecological restoration projects in The Netherlands. Starting from the conceptual basis of restoration ecology, the successes and failures of hundreds of restoration projects are described. Numerous successful projects are mentioned. In general ecological restoration endeavours greatly benefit from the progressive experience achieved in the course of the years. Failures mainly occur through insufficient application of physical, chemical or ecological principles. Spontaneous colonization by plants and animals, following habitat reconstruction, is preferred. However, sometimes the re-introduction of keystone species (e.g. eelgrass, salmon, beaver) is necessary in case the potential habitats are isolated or fragmented, or if a seed bank is lacking, thus not allowing viable populations to develop. Re-introducing traditional management techniques (e.g. mowing without fertilization, low intensity grazing) is important to rehabilitate the semi-natural and cultural landscapes that are so characteristic for The Netherlands.
| Author | : R. D. Gulati |
| Publisher | : |
| Total Pages | : 233 |
| Release | : 2002 |
| Genre | : |
| ISBN | : |
| Author | : R.S.E.W. Leuven |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 369 |
| Release | : 2007-12-20 |
| Genre | : Science |
| ISBN | : 1402053673 |
This book demonstrates an integrated perspective of trends and challenges in sustainable river science and management, as presented by experts in the fields that form its foundations - ecology, economy and sociology. Their contributions integrate current knowledge of the structure, functioning and management of ‘living rivers’. Also included are data and experiences concerning the rivers Allier, Meuse, Rhine, Sava and Tagliamento in Europe and the Illinois River in the USA.
| Author | : Ramesh D. Gulati |
| Publisher | : Springer |
| Total Pages | : 384 |
| Release | : 1982-10-31 |
| Genre | : Science |
| ISBN | : 9789061937623 |
The Netherlands, like the other industrialized countries in the northern hemisphere, is faced with increas ing environmental pro blems. Being a country rich in water - at least in terms of surface area - and low-lying, problems related to water are as old as the nation itself. The problems in regard to water quality are becoming more acute and complicated due to the progressive rise in air and ground pollution. Glaring examples are the acid rains and contamination of ground-water resources by toxic, and often illegal, waste dumps. Being a delta country, the Netherlands is also very vulnerable to pollution from the·water sources outside the country's national boundaries, i.e. the rivers Rhine, Meuse and ScheIdt. Not only the national but also the international authorities are active in developing measures to both prevent and combat water pollution, and to restore as far as possible the natural balance or a 'reasonable' water quality. The pollution abatement programmes are based on ecological theories; accepting waterbodies as aquatic ecosystems, the authorities concerned try to influence and lead the progresses in the systems to reach or maintain the desired ecosystem structure. Suter II (1981) mentioned a number of reasons why the attempts to use ecosystem theories to assess the impacts on the environment have been disappointing to date. It is clear that one of the reasons for the failure is lack of proper knowledge.
| Author | : T.H.L. Claassen |
| Publisher | : |
| Total Pages | : 24 |
| Release | : 2008 |
| Genre | : |
| ISBN | : |
The implementation of the in December 2000 adopted EU Water Framework Directive (WFD) is a huge operation in the various countries concerned. Many practical aspects of the WFD still have to be worked out. In this respect many organisations in six different EU countries tried to execute pilot projects to be linked up to each other, focused on the implementation of the WFD. Lake the Leijen (LL) in the northern Netherlands is the Dutch pilot area. LL is a rather small and shallow semi -stagnant lake. It's part of a large lakes system in the province of Friesland. There is a fixed man-made water table of half a meter below mean sea level throughout the year. In- and outflow of water supports the local water management in the surrounding, mainly agricultural, polder areas. Because of extreme loading of nutrients (during the last decennia) the lake is strongly eutrophicated. Phytoplankton is dominated by blue-greens, submerged water plants are absent and the fish-stock is dominated by bream. General water quality standards are exceeded. Water (quality and quantity) management is a task of Friesland Water Authority, while the State Forestry Service is concerned with the lake shorelines. The province has defined the policy for this lake, with the main function "Water for Nature". Besides, there is a limited recreational use of this lake. Related to these functions and the bad water quality in mind LL has been selected as the Dutch NOLIMP pilot project. In corporation with various regional and local partners it's tried to realise the necessary measures to reach a water quality, linked to the good ecological potential (GEP) according to the WFD. A preliminary qualification of that GEP is given in this paper, beside some general limnological features and the measures planned to realise in the coming years. This NOLIMP illustration project (see also www.nolimp.org ) should not only give an idea of the (troubles of the) implementation of the WFD, but also result in an improved aquatic -clear water- ecosystem in Lake the Leijen.
| Author | : Piet H. Nienhuis |
| Publisher | : Springer |
| Total Pages | : 597 |
| Release | : 2011-10-13 |
| Genre | : Science |
| ISBN | : 9789401111751 |
The Oosterschelde estuary is one of the estuaries in the Netherlands which remained after the Delta scheme was completed in 1986. In the seventies the Oosterschelde became a national symbol of the change in political thinking and decision making about the values of our natural environment. As a result of political decision a storm surge barrier was built in the mouth of the estuary, as a compromise between safety for the human population and nature conservation. Owing to the broad interest in the meaning of the Oosterschelde estuary for Dutch and international societies, it became one of the most intensively studied coastal ecosystems in Western Europe. In an interdisciplinary approach of several state agencies and universities, a broad spectrum of physical, chemical and biological research has been carried out during the period of 1980--1989, dedicated to the structure and functioning of the saline ecosystem. The undisturbed estuary was studied during the period between 1980--1984. Large mathematical models had been constructed before 1986, to simulate future changes in the ecosystem. Further studies after the completion of the storm surge barrier (1986--1989) have been used for verification of the model. The integrated and summarized knowledge of the Oosterschelde ecosystem is used by water managers and nature and fisheries conservationists. A case study for professional civil engineers, ecologists, marine biologists, water managers, decision makers, university students and anyone interested in physical, chemical and biological estuarine and coastal sciences.
| Author | : Ellen E. Wohl |
| Publisher | : Cambridge University Press |
| Total Pages | : 520 |
| Release | : 2000-07-03 |
| Genre | : Nature |
| ISBN | : 9780521624190 |
This edited volume was originally published in 2000 and presents a comprehensive, interdisciplinary review of issues related to inland flood hazards. It addresses physical controls on flooding, flood processes and effects, and responses to flooding, from the perspective of human, aquatic, and riparian communities. Individual chapter authors are recognized experts in their fields who draw on examples and case studies of inland flood hazards from around the world. This volume is unusual among treatments of flood hazards in that it addresses how the non-occurrence of floods, in association with flow regulation and other human manipulation of river systems, may create hazards for aquatic and riparian communities. This book will be a valuable resource for everyone associated with inland flood hazards: professionals in government and industry, and researchers and graduate students in civil engineering, geography, geology, hydrology, hydraulics, and ecology.
| Author | : United Nations Publications |
| Publisher | : UN |
| Total Pages | : 0 |
| Release | : 2021 |
| Genre | : Political Science |
| ISBN | : 9789211587470 |
This report presents the case for why we all must throw our weight behind a global restoration effort. Drawing on the latest scientific evidence, it explains the crucial role played by ecosystems from forests and farmland to rivers and oceans, and charts the losses that result from our poor stewardship of the planet. While restoration science is a youthful discipline, we already have the knowledge and tools we need to halt degradation and restore ecosystems. Farmers, for instance, can draw on proven restorative practices such as sustainable farming and agroforestry. Landscape approaches that give all stakeholders - including women and minorities - a say in decision-making are simultaneously supporting social and economic development and ecosystem health. And policy makers and financial institutions are realizing the huge need and potential for green investment.
| Author | : Speed, Robert |
| Publisher | : UNESCO Publishing |
| Total Pages | : 204 |
| Release | : 2016-09-19 |
| Genre | : |
| ISBN | : 9231001655 |
| Author | : National Research Council |
| Publisher | : National Academies Press |
| Total Pages | : 449 |
| Release | : 2002-10-10 |
| Genre | : Science |
| ISBN | : 0309082951 |
The Clean Water Act (CWA) requires that wetlands be protected from degradation because of their important ecological functions including maintenance of high water quality and provision of fish and wildlife habitat. However, this protection generally does not encompass riparian areasâ€"the lands bordering rivers and lakesâ€"even though they often provide the same functions as wetlands. Growing recognition of the similarities in wetland and riparian area functioning and the differences in their legal protection led the NRC in 1999 to undertake a study of riparian areas, which has culminated in Riparian Areas: Functioning and Strategies for Management. The report is intended to heighten awareness of riparian areas commensurate with their ecological and societal values. The primary conclusion is that, because riparian areas perform a disproportionate number of biological and physical functions on a unit area basis, restoration of riparian functions along America's waterbodies should be a national goal.
