An integrated treatment of forest nutrition management that draws on the fields of silviculture, soil studies, ecology and economics to provide broad-based information on how to enhance the nutritional status of forest soils in order to increase their long-term stand productivity. It covers the use of fertilizers to enhance biological nitrogen fixation and how the nutrition status of forests is affected by other operations, such as harvesting and site preparation. Also included are methods for assessing nutrient status, the economics of nutrition management, and models to aid in decision...

Almost 50% of the total area of Austria is forested, and the forests are dominated by commercially valuable stands of Norway spruce ( (Picea abies). The few remaining forests that resemble the natural vegetation composition are located in forest reserves with restricted management. These natural forests are used as reference systems for evaluating silvicultural research on sustainable forest management. Natural forests are expected to have high biodiversity, where the structural richness of the habitat enables complex relationships between fauna, flora, and microflora. They also provide...

Almost 50% of the total area of Austria is forested, and the forests are dominated by commercially valuable stands of Norway spruce ( (Picea abies). The few remaining forests that resemble the natural vegetation composition are located in forest reserves with restricted management. These natural forests are used as reference systems for evaluating silvicultural research on sustainable forest management. Natural forests are expected to have high biodiversity, where the structural richness of the habitat enables complex relationships between fauna, flora, and microflora. They also provide...

John Sculley In the short history of personal computing, the task of the software programmer has been one of the least recognized-but one of the most significant-in the industry. In addition to defining the prob- lems, and presenting the solutions, the software programmer is con- fronted with the challenge of having to predict what combination of ideas and technologies will move the industry forward in the most compelling way. Even though we've seen the development of tremendous applications in a surprisingly short period of time, the most difficult problems often surface when we try to...

Knowledge in the field of acidic deposition is expanding rapidly, and both ex- perts and non-experts are challenged to keep up with the latest information. We designed our assessment to include both the basic foundation needed by non- experts and the detailed information needed by experts. Our assessment in- cludes background information on acidic deposition (Chapter 1), an in-depth discussion of the nature of soil acidity and ecosystem H+ budgets (Chapter 2), and a summary of rates of deposition in the Southeastern U.S. (Chapter 3). A discussion of the nature of forest soils in the region...

This book is about the soil that supports the world's forests. Forests can be viewed from a range of perspectives all of which are based on soils. Forest productivity is a story that centers on photosynthesis and plant growth, but plant biochemistry is supported by nutrient cycles that are essentially a soil story. Within a region, patterns of forest productivity result from spatial variations in the soils. The diversity of plant species in forests is intrinsically linked with the soil as well; across landscapes, the patterns in vegetation are typically modified- or even controlled- by...