Nature

The book begins with an overview of the research topics which were addressed in the three different phases of the Dutch Priority Program on Acidification (DPPA), executed between 1985 and 1994. This chapter is followed by a chapter which deals with the emissions of acidifying substances, the concentrations and the deposition to forest and nature conservation areas. Prognoses are given for the acid deposition in 2000 and 2010; the deposition in the countries surrounding the Netherlands is also mentioned. The differences in the results of the DPPA-II are analysed. The third chapter deals with the effects of exposure and load on forests. The chapter moves from small-scale to large-scale: first the effects in laboratory-scale studies are described, then the effects in the field, both at stand level and on a regional scale. In addition, the critical thresholds (critical level of concentration and critical load of deposition) are discussed. The fourth chapter covers terrestrial ecosystems (or parts thereof) as well as weakly buffered surface waters, springs and other streams. Critical levels and loads are also discussed. The most important results are given in chapter 5. In the appendices of the book, so-called umbrella theme reports on deposition, stand modelling and effects on forests are presented which describe in more detail the scientific work performed in the third phase of the DPPA. This book will be of interest to anyone involved in research related to acidification and eutrophication; i.e., not only those who perform the research in the causal chain from emissions to effects, but also policy-makers and students. more...

Price: $308.00

In weiten Gebieten Mitteleuropas ist Ackerbau auf ertragsschwachen Standorten nur mit ffentlicher Frderung kostendeckend. Diese ist fr die nhere Zukunft gesichert, langfristig aber ungewiss. Eine groflchige Aufgabe des Ackerbaus wre aus zahlreichen Grnden problematisch. Ausgehend von einer historischen Betrachtung untersucht dieses Buch Perspektiven eines extensiven, multifunktionellen Ackerbaus, der Naturschutz und Erholungseignung in sein Zielbndel integriert. Anbautechnik, Fruchtfolgen sowie Wirkungen auf Bodenfruchtbarkeit, Wasserhaushalt und Artenvielfalt werden vorgestellt. Detailliert ermittelt werden sodann die gesellschaftlichen Kosten dieses Landnutzungssystems, die sich im Vergleich mit anderen als gering erweisen. Der Erholungswert wird mittels Zahlungsbereitschaftsanalysen erhoben. Die Gegenberstellung von Kosten und Nutzen, die Akzeptanz von Seiten der Landwirtschaft sowie weitere wichtige Aspekte sprechen dafr, dem extensiven Ackerbau einen Platz im Spektrum knftiger Landnutzungen einzurumen. more...

Price: $139.00

China faces a major challenge in managing its scarce water resources to sustain economic growth in the years ahead. This report provides an overview of China's water scarcity situation, assesses the policy and institutional requirements for addressing it, and recommends key areas for strengthening and reform. The issues covered in the report are water governance, water rights, water pricing and affordability, watershed ecological compensation, water pollution control, and emergency prevention. The report's recommendations identify the key measures needed to effectively address these issues. more...

Price: $35.00

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Price: $16.95

The latest research in the series. more...

Price: $170.00