Rangeland health : new methods to classify, inventory, and monitor rangelands / / Committee on Rangeland Classification, Board on Agriculture, National Research Council

• Pubblicazione: Washington, D.C. : , : National Academy Press, , 1994
• Descrizione fisica: 1 online resource (200 pages) : illustrations
• Disciplina: 333.74/0973
• Soggetto topico: Range management - United States; Rangelands - United States; Range ecology - United States; Range management; Rangelands; Range ecology
• Note generali: Description based upon print version of record.
• Nota di bibliografia: Includes bibliographical references (p. 158-168) and index.
• Nota di contenuto: ""RANGELAND HEALTH""; ""Copyright""; ""Preface""; ""Acknowledgments""; ""Contents""; ""Executive Summary""; ""STATE OF RANGELAND ECOSYSTEMS""; ""Questions About Methods""; ""Lack of Reliable Data""; ""Need to Know is Urgent""; ""PURPOSES OF NATIONAL ASSESSMENTS""; ""Standards for National Assessments""; ""DEFINITION OF RANGELAND HEALTH""; ""MINIMUM ECOLOGICAL STANDARD""; ""USE AND MANAGEMENT""; ""Categories for National Assessments""; ""METHODS TO ASSESS RANGELAND HEALTH""; ""Defining Boundaries""; ""Criteria and Indicators""; ""SOIL STABILITY AND WATERSHED FUNCTION"" ; ""NUTRIENT CYCLING AND ENERGY FLOW"" ""RECOVERY MECHANISMS""; ""Research Needed""; ""NATIONAL INVENTORYING AND MONITORING SYSTEM""; ""Minimum Data Set""; ""Standardize Indicators and Methods""; ""National Sampling System""; ""Periodic Sampling Needed""; ""TRANSITION TO RANGELAND HEALTH ASSESSMENTS""; ""Intermediate Steps""; ""Preserving Continuity During the Transition""; ""CHALLENGE TO RANGE SCIENTISTS AND MANAGERS""; ""1 Rangelands are Important ""; ""RANGELAND MANAGEMENT AND USES""; ""CONCERN ABOUT THE STATE OF U.S. RANGELANDS""; ""Federal Management of U.S. Rangelands"" ; ""Present State of Rangelands"" ""ASSESSMENTS OF RANGELANDS""; ""DEFICIENCIES OF ASSESSMENTS""; ""UTILITY OF CURRENT METHODS AND DATA""; ""URGENT NEED FOR NATIONAL ASSESSMENTS""; ""2 Rangeland Health ""; ""GOALS FOR NATIONAL ASSESSMENTS""; ""STANDARDS FOR RANGELAND ASSESSMENTS""; ""Rangeland Health""; ""Categories for Rangeland Assessments""; ""DEFINING BOUNDARIES""; ""THRESHOLDS BETWEEN ECOLOGICAL STATES""; ""PROCESSES OF CHANGE""; ""THRESHOLD OF RANGELAND HEALTH""; ""EARLY WARNING LINE""; ""MULTIPLE STATES AND TRANSITIONS""; ""ROLE OF RANGELAND HEALTH IN RANGELAND MANAGEMENT"" ; ""Goal of Range Management"" ""Additional Information Needed to Determine Appropriate Management""; ""Rangeland in Extreme Environments""; ""3 Current Methods of Rangeland Assessment ""; ""DEVELOPMENT OF CURRENT THEORY AND PRACTICE OF RANGELAND ASSESSMENTS""; ""Early Development Of Survey Methods""; ""Standardization of Rangeland Surveys""; ""New Theoretical Foundation for Rangeland Surveys""; ""SUCCESSION AND CLIMAX COMMUNITIES""; ""SUCCESSIONAL STAGES AND RANGELAND ASSESSMENT""; ""SUCCESSIONAL STAGES AS CONDITION CLASSES"" ; ""ADOPTION OF THE SUCCESSION-RETROGRESSION MODEL BY FEDERAL AGENCIES""""APPLICABILITY OF THE SUCCESSION-RETROGRESSION MODEL""; ""LINKS BETWEEN OTHER BRANCHES OF ECOLOGY AND RANGELAND SCIENCE""; ""CURRENT AGENCY RANGELAND ASSESSMENT THEORY AND PRACTICE""; ""Site Classification""; ""RANGE SITE CLASSIFICATION""; ""ECOLOGICAL SITES AND TYPES""; ""Evaluation of Range Condition and Ecological Status""; ""RANGE CONDITION (SCS)""; ""ECOLOGICAL STATUS (USFS AND BLM)""; ""Trend and Apparent Trend""; ""NEW METHODS NEEDED TO ASSESS RANGELAND HEALTH""; ""Site Classification""; ""CLASSIFICATION BASED ON CLIMAX CONCEPT""
• Titolo autorizzato: Rangeland health
• ISBN: 1-280-19656-4; 9786610196562; 0-309-56647-9; 0-585-15634-4
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Lingua di pubblicazione: Inglese
• Record Nr.: 9910778796203321
• Lo trovi qui: Univ. Federico II