Nature

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

Advanced Ecological Theory is intended for both postgraduate students and professional researchers in ecology. It provides an overview of current advances in the field as well as closely related areas in evolution, ecological economics, and natural-resource management, familiarizing the reader with the mathematical, computational and statistical approaches used in these different areas. The book has an exciting set of diverse contributions written by leading authorities. more...

Price: $140.00

more...

Price: $189.00

Volume 20 of this series deals with a variety of plant and animal ecology topics.**Despite much recent work on herbivory, little attention has been given to insect herbivores active below ground. Brown and Gange describe the ecological adaptations of insects to this abundant but poor quality food resource, and the responses of plants to this potentially very damaging grazing pressure.**Plants living at high altitude must be able to cope with extreme climatic conditions, low carbon dioxide levels, and high radiation doses. Friend and Woodward describe these adaptations and discuss the degree to which they are genetically determined or merely the product of physiological plasticity.**Thomas presents a modular concept of ecology in which modules contain a resource and its associated consumers, and goes on to examine the general principles which may reflect the various mutualisms between organisms in some example fresh water modular systems.**Finally, West examines the microphytic soil crusts of arid and semi-arid soils. Although information on them is currently limited, they are likely to be important in some ecosystems. more...

Price: $185.00