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Les pelouses calcicoles de Haute-Normandie sont des milieux semi-naturels de grande valeur biologique. Abandonnées de toute exploitation agricole depuis les années 1950, des successions végétales secondaires se mettent en place et menacent à terme la biodiversité des stades initiaux. Après avoir réalisé une analyse bibliographique internationale, la variabilité écologique des sites de pelouses et l’impact des systèmes de gestion conservatoire sont étudiés. A l’échelle du paysage, une recherche d’écologie historique montre que les trajectoires des successions végétales sont en partie définies par les pratiques agro-pastorales anciennes. Inapplication de ces pratiques à divers compartiments de l’écosystème permet ensuite de mieux appréhender la dynamique des différentes communautés en rapport avec la mise en place d’une gestion capable de conserver leur importante biodiversité.
Geography --- végétation --- écosystème --- biodoversité --- calciphile --- calcicole --- pelouse
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ethnobotany --- botany --- ecology --- vegetation --- plant systematics --- Botany --- Biology --- Botany.
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Mountain plants --- Walking --- Pedestrianism --- Aerobic exercises --- Animal locomotion --- Athletics --- Human locomotion --- Alpine flora --- Alpine plants --- Alpine region plants --- Alpine vegetation --- Alpines (Plants) --- High altitude plants --- High altitude vegetation --- Montane plants --- Mountain flora --- Mountain vegetation --- Mountain wildlife --- Sub-alpine plants --- Sub-alpine vegetation --- Subalpine plants --- Subalpine vegetation --- Plants
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Public policies in France and in Europe obligate decision makers to consider an integrated management of habitats and territories that combines several benefits. This book provides innovative vegetation engineering solutions for reconciling habitat restoration with flood prevention.
Flood control --- flood --- ecology --- watershed --- natural risk --- vegetation --- sediment --- mountain --- erosion
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The book gathers 28 quality papers containing new and important knowledge on forest operations, engineering and management. Active forest management is indeed applied through forest engineering, and careful forest tending is conditional to the implementation of sound operational methods, which may guarantee cost-effective management while protecting environmental functionality and worker health. Efficiently managed forest operations offer the highest benefit and the lowest cost, in all fields: financial, social and environmental. While maintaining a cross-disciplinary character, forest engineering represents a special sector of interest within the field of forestry and aims at increasing the overall efficiency of forest operations. Forest engineering often deals with practical issues that have a strong economic impact, and for this reason the industry has always had a strong interest in forest engineering, which explains the close connection between scientists and economic operators. The central role of forest engineering in modern forestry is demonstrated by the many sessions gathered under this general label at the IUFRO 125th Anniversary Congress, which offered a great opportunity for catching up with the latest results of sector research. Over the years, much progress has been done in the field of forest engineering, which has been supported by the dramatic technology advances of the most recent times. The 28 papers contained in this book come from many different countries and cover a large variety of subjects, from pure productivity, to resource availability, operation planning, environmental impacts and operator safety and health. Energy biomass is also represented, as a witness to the growing role of forestry in the quest for renewable energy sources.
Forest management. --- 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 --- Natural resources --- Management --- Administration --- Control
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Plants --- Classification --- Study and teaching. --- Flora --- Plant kingdom --- Plantae --- Vascular plants --- Vegetable kingdom --- Vegetation --- Wildlife --- Organisms --- Botany
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Plants --- Evolution. --- History. --- Flora --- Plant kingdom --- Plantae --- Vascular plants --- Vegetable kingdom --- Vegetation --- Wildlife --- Organisms --- Botany --- Plant evolution --- Evolution (Biology) --- Phylogeny
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This aesthetically unique book combines ecological, morphological and anatomical, as well as phylogenetic studies on plant material in a largely unexplored dry mountain region above the timberline. It offers the first comparative analysis of hundreds of plants - annuals, perennial herbs and dwarf shrubs - in an area of 87,000 km2 at altitudes from 2600 to 6150 m above sea level in the Western Himalaya. Characteristic landscape pictures of all major vegetation types and maps show at which locations and altitudes the individual species of vascular plants are distributed, while macroscopic plant pictures and plant age are related to high-quality micro-sections and micro-photographs. The anatomical features of 345 dicotyledons were characterized using the published coding systems and those of 155 monocotyledones were characterized on the basis of a newly developed key. The number of annual rings and anatomical features of the xylem and phloem of dicots are compared and related to different ecological conditions within this extremely dry and cold environment. The ecological and anatomical characterization is used to create a phylogenetic tree based on nucleotide sequences, and indicates which features are genetically stable and which ones are modified by environmental factors. The book appeals to scientists in the fields of plant taxonomy, morphology, anatomy and ecology. .
Life sciences. --- Ecosystems. --- Plant ecology. --- Plant anatomy. --- Plant development. --- Life Sciences. --- Plant Systematics/Taxonomy/Biogeography. --- Plant Anatomy/Development. --- Plant Ecology. --- Mountain plants --- Alpine flora --- Alpine plants --- Alpine region plants --- Alpine vegetation --- Alpines (Plants) --- High altitude plants --- High altitude vegetation --- Montane plants --- Mountain flora --- Mountain vegetation --- Mountain wildlife --- Sub-alpine plants --- Sub-alpine vegetation --- Subalpine plants --- Subalpine vegetation --- Plants --- Ecology --- Endangered ecosystems. --- Threatened ecosystems --- Biotic communities --- Nature conservation --- Botany --- Plant structure --- Structural botany --- Vegetable anatomy --- Anatomy --- Structure --- Phytoecology --- Vegetation ecology --- Plant systematics. --- Plant taxonomy. --- Biocenoses --- Biocoenoses --- Biogeoecology --- Biological communities --- Biomes --- Biotic community ecology --- Communities, Biotic --- Community ecology, Biotic --- Ecological communities --- Ecosystems --- Natural communities --- Population biology --- Development of plants --- Plant development --- Developmental biology --- Growth (Plants) --- Botanical classification --- Botanical systematics --- Botanical taxonomy --- Classification --- Plant biosystematics --- Plant classification --- Plant systematics --- Plant taxonomy --- Systematic botany --- Systematics (Botany) --- Taxonomy, Plant --- Plant taxonomists --- Ontogeny --- Floristic ecology
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Weeds --- Control. --- Crops --- Eradication of weeds --- Suppression, Weed --- Weed control --- Weed eradication --- Weed management --- Weed suppression --- Vegetation management --- Herbicides --- Eradication --- Management
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This book is an interdisciplinary module that uses project- and problem-based learning to help young children make discoveries about a range of natural phenomena. It steers students toward authentic problem solving while grounding them in integrated STEM disciplines.
Seasons --- Plants --- Study and teaching (Elementary) --- Seasonal variations --- Flora --- Plant kingdom --- Plantae --- Vascular plants --- Vegetable kingdom --- Vegetation --- Wildlife --- Organisms --- Botany --- Astronomical geography --- Astronomy --- Climatology --- Meteorology
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