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Les forêts tropicales, dont le rôle écologique est unanimement reconnu, subissent actuellement une dégradation massive et un bouleversement radical des modes de vie de leurs habitants. Ces milieux tropicaux ont été l’objet d’occupations humaines parfois très anciennes, donnant lieu en plusieurs régions du globe à des développements socioculturels complexes, témoignant d’adaptations durables. L’analyse sur le temps long des interactions entre les sociétés et leurs environnements tropicaux forestiers témoigne cependant de l’existence de périodes de crises et de ruptures dans l’histoire ancienne du peuplement. Issues d’une large palette de disciplines, les contributions réunies dans cet ouvrage présentent l’état des connaissances sur l’occupation des différentes régions tropicales et précisent l’importance relative des facteurs historiques et culturels par rapport aux déterminants écologiques dans cette histoire.

Earth & Environmental Sciences --- Forestry --- végétation --- paléoenvironnement --- forêt --- déforestation --- anthropisation --- paysages végétaux --- peuplement --- paléoclimat --- agroforesterie --- paléontologie

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The global spread of plant species by humans is both a fascinating large scale experiment and, in many cases, a major perturbation to native plant communities. Many of the most destructive weeds today have been intentionally introduced to new environments where they have had unexpected and detrimental impacts. This 2003 book considers the problem of invasive introduced plants from historical, ecological and sociological perspectives. We consider such questions as 'What makes a community invasible?', 'What makes a plant an invader?' and 'Can we restore plant communities after invasion?' Written with advanced students and land managers in mind, this book contains practical explanations, case studies and an introduction to basic techniques for evaluating the impacts of invasive plants. An underlying theme is that experimental and quantitative evaluation of potential problems is necessary, and solutions must consider the evolutionary and ecological constraints acting on species interactions in newly invaded communities.

Invasive plants. --- Invasive plants --- Plant invasions --- Plant conservation --- Agriculture --- Earth & Environmental Sciences --- Plant Sciences --- Ecology --- Plant invasions. --- Plant conservation. --- Ecology. --- Native vegetation conservation --- Plants --- Vegetation conservation --- Plant invaders --- Conservation --- Nature conservation --- Plants, Protection of --- Endangered plants --- Fungi conservation --- Rare plants --- Biological invasions --- Plant succession --- Alien plants --- Extinction --- Plant introduction --- population dynamics --- Dominant species --- Biological competition --- ecosystems --- Lutte

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Decision Methods for Forest Resource Management focuses on decision making for forests that are managed for both ecological and economic objectives. The essential modern decision methods used in the scientific management of forests are described using basic algebra, computer spreadsheets, and numerous examples and applications. Balanced treatment is given throughout the book to the ecological and economic impacts of alternative management decisions in both even-aged and uneven-aged forests.* In-depth coverage of both ecological and economic issues* Hands-on examples with Excel sp

Forest management --- Forests and forestry. --- Forest land --- Forest lands --- Forest planting --- Forest production --- Forest sciences --- Forestation --- Forested lands --- Forestland --- Forestlands --- Forestry --- Forestry industry --- Forestry sciences --- Land, Forest --- Lands, Forest --- Silviculture --- Sylviculture --- Woodlands --- Woods (Forests) --- Agriculture --- Natural resources --- Afforestation --- Arboriculture --- Logging --- Timber --- Tree crops --- Trees --- Forest administration --- Forest plants --- Forest resource administration --- Forest resource management --- Forest stewardship --- Forest vegetation management --- Forestry management --- Forests and forestry --- Stewardship, Forest --- Vegetation management, Forest --- Ecosystem management --- Decision making. --- Management --- Administration --- Control --- Forest resources --- Decision making --- computer applications --- Linear programming --- Management by objectives

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The book presents a wide range of techniques for extracting information from satellite remote sensing images in forest fire danger assessment. It covers the main concepts involved in fire danger rating, and analyses the inputs derived from remotely sensed data for mapping fire danger at both the local and global scale. The questions addressed concern the estimation of fuel moisture content, the description of fuel structural properties, the estimation of meteorological danger indices, the analysis of human factors associated with fire ignition, and the integration of different risk factors in

Fire risk assessment. --- Forest fire forecasting. --- Remote sensing. --- Vegetation mapping. --- Wildfires --- Remote-sensing imagery --- Remote sensing systems --- Remote terrain sensing --- Sensing, Remote --- Terrain sensing, Remote --- Aerial photogrammetry --- Aerospace telemetry --- Detectors --- Space optics --- Fire extinction --- Fire prevention --- Plant mapping --- Plants --- Cartography --- Fire hazard analysis --- Fire hazard assessment --- Fire risk analysis --- Fires --- Hazard analysis, Fire --- Hazard assessment, Fire --- Risk analysis, Fire --- Risk assessment --- Forecasting, Forest fire --- Forest fires --- Wildfire forecasting --- Prevention and control. --- Mapping --- Forecasting --- Prevention and control