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Books > Earth & environment > Geography > Physical geography > General

Tools and Methods for Evaluating and Refining Alternative Futures for Coastal Ecosystem Management- the Puget Sound Ecosystem... Tools and Methods for Evaluating and Refining Alternative Futures for Coastal Ecosystem Management- the Puget Sound Ecosystem Portfolio Model (Paperback)
U.S. Department of the Interior
R419 Discovery Miles 4 190 Ships in 18 - 22 working days

The U.S. Geological Survey Puget Sound Ecosystem Portfolio Model is a decisions-support tool that uses scenarios to evaluate where, when, and to what extend future population growth, urban growth, and shoreline development may threaten the Puget Sound nearshore environment.

Ecological Thresholds as a Basis for Defining Management Triggers for National Park Service Vital Signs?Case Studies for... Ecological Thresholds as a Basis for Defining Management Triggers for National Park Service Vital Signs?Case Studies for Dryland Ecosystems (Paperback)
U.S. Department of the Interior
R441 Discovery Miles 4 410 Ships in 18 - 22 working days

Threshold concepts are used in research and management of ecological systems to describe and interpret abrupt and persistent reorganization of ecosystem properties (Walker and Meyers, 2004; Groffman and others, 2006). Abrupt change, referred to as a threshold crossing, and the progression of reorganization can be triggered by one or more interactive disturbances such as land-use activities and climatic events (Paine and others, 1998). Threshold crossings occur when feedback mechanisms that typically absorb forces of change are replaced with those that promote development of alternative equilibria or states (Suding and others, 2004; Walker and Meyers, 2004; Briske and others, 2008). The alternative states that emerge from a threshold crossing vary and often exhibit reduced ecological integrity and value in terms of management goals relative to the original or reference system. Alternative stable states with some limited residual properties of the original system may develop along the progression after a crossing; an eventual outcome may be the complete loss of pre-threshold properties of the original ecosystem.

A Little Acorn Slumbered (Paperback): Ann M Hawkins A Little Acorn Slumbered (Paperback)
Ann M Hawkins
R412 Discovery Miles 4 120 Ships in 18 - 22 working days
Riparian Area Management - Grazing Management for Riparian-Wetland Areas (Paperback): U.S. Department of the Interior Riparian Area Management - Grazing Management for Riparian-Wetland Areas (Paperback)
U.S. Department of the Interior
R406 Discovery Miles 4 060 Ships in 18 - 22 working days
NED-2 User's Guide (Paperback): United States Department of Agriculture NED-2 User's Guide (Paperback)
United States Department of Agriculture
R526 Discovery Miles 5 260 Ships in 18 - 22 working days
The Soils of Wisconsin (Paperback, Softcover reprint of the original 1st ed. 2017): James G. Bockheim, Alfred E Hartemink The Soils of Wisconsin (Paperback, Softcover reprint of the original 1st ed. 2017)
James G. Bockheim, Alfred E Hartemink
R3,079 R2,850 Discovery Miles 28 500 Save R229 (7%) Ships in 9 - 17 working days

This book provides an up-to-date and comprehensive report on the soils of Wisconsin, a state that offers a rich tapestry of soils. It discusses the relevant soil forming factors and soil processes in detail and subsequently reviews the main soil regions and dominant soil orders, including paleosols and endemic and endangered soils. The last chapters address soils in a changing climate and provide an evaluation of their monetary value and crop yield potential. Richly illustrated, the book offers both a valuable teaching resource and essential guide for policymakers, land users, and all those interested in the soils of Wisconsin.

Wildlife Strikes to Civil Aircraft in the United States 1990-2012 (Paperback): U.S. Department of Agriculture Wildlife Strikes to Civil Aircraft in the United States 1990-2012 (Paperback)
U.S. Department of Agriculture
R447 Discovery Miles 4 470 Ships in 18 - 22 working days

In 2012, the FAA and USDA continued to make great progress with its multifaceted approach for mitigating wildlife strikes. The FAA ensured that 100 percent of Part 139 airports have completed a Wildlife Hazard Assessment (WHA), are in the process of conducting a WHA, or have taken a Federal grant to conduct a WHA. Strike reporting continued to increase, especially with General Aviation (GA) aircraft, which increased strike reporting by 11 percent between 2011 and 2012. The FAA implemented three performance metrics to monitor strike reporting trends and GA wildlife mitigation. The performance metrics include percentage of damaging strikes, strike reporting rates, and tracking of General Aviation (GA) airports that conduct WHAs and site visits. We also issued a final Advisory Circular (AC) on strike reporting and draft ACs on WHA methodology and requirements for federally obligated public airports to conduct WHAs.

The Bear Guarding the Beehive (Paperback): Stephanie C. Fox The Bear Guarding the Beehive (Paperback)
Stephanie C. Fox
R562 R516 Discovery Miles 5 160 Save R46 (8%) Ships in 18 - 22 working days
Our Runaway Globe - How To Restore Balance On Earth (Paperback): Rafael Augusto Carreras Mba Our Runaway Globe - How To Restore Balance On Earth (Paperback)
Rafael Augusto Carreras Mba
R432 Discovery Miles 4 320 Ships in 18 - 22 working days
Ecosystem Health in Mineralized Terrane - Data from Podiform Chromite (Chinese Camp Mining District, California), Quartz... Ecosystem Health in Mineralized Terrane - Data from Podiform Chromite (Chinese Camp Mining District, California), Quartz Alunite (Castle Peak and Masonic Mining Districts, Nevada/California), and Mo/Cu Porphyry (Battle Mountain Mining District, Nevada) Dep (Paperback)
U.S. Department of the Interior
R323 Discovery Miles 3 230 Ships in 18 - 22 working days

The myriad definitions of soil/ecosystem quality or health are often driven by ecosystem and management concerns, and they typically focus on the ability of the soil to provide functions relating to biological productivity and/or environmental quality (Doran and Parkin, 1994; Karlen and others, 1997). A variety of attempts have been made to create indices that quantify the complexities of soil quality and provide a means of evaluating the impact of various natural and anthropogenic disturbances.

Best Plants On The Planet For Apis Mellifera - Best Plants On The Planet For Year-Round Honeybee Habitats (Paperback):... Best Plants On The Planet For Apis Mellifera - Best Plants On The Planet For Year-Round Honeybee Habitats (Paperback)
Catherine a Garvin
R697 Discovery Miles 6 970 Ships in 18 - 22 working days
Our Runaway Globe - How To Restore Balance On Earth (Paperback): Rafael Augusto Carreras Mba Our Runaway Globe - How To Restore Balance On Earth (Paperback)
Rafael Augusto Carreras Mba
R431 Discovery Miles 4 310 Ships in 18 - 22 working days
A Kind of Magic - a three-volume novel of eco-magical realism (Paperback): Emily King A Kind of Magic - a three-volume novel of eco-magical realism (Paperback)
Emily King; Photographs by Emily King; Milo Barney
R409 Discovery Miles 4 090 Ships in 18 - 22 working days

A Kind of Magic is a three-volume novel of eco-magical realism. It's a book about transition: from childhood to adolescence; from isolation to community; from passivity to action. From fantasy to the real world. It is deliberately aimed at 4th - 6th graders, and can be read as a whole or as three short school library books. A Trick of the Light/Turtle Crossing/ThunderHawk: A Trilogy of short books for middle-grade readers; following a boy's awakening to the beauties and needs of the natural world around him, with the help of his friends, his family, his community and the mysterious spirit of the forest.

Assessment of managed aquifer recharge at Sand Hollow Reservoir, Washington County, Utah, updated to conditions in 2012... Assessment of managed aquifer recharge at Sand Hollow Reservoir, Washington County, Utah, updated to conditions in 2012 (Paperback)
Victor M. Heilweil, Thomas M. Marston
R426 Discovery Miles 4 260 Ships in 18 - 22 working days
Pafinna's Prophecy (Paperback): Gael Whelan Pafinna's Prophecy (Paperback)
Gael Whelan
R1,222 Discovery Miles 12 220 Ships in 18 - 22 working days
Focal Terrestrial Plant Communities Monitoring Protocol - Pacific Island Network (Paperback): Paul Berkowitz, James D. Jacobi,... Focal Terrestrial Plant Communities Monitoring Protocol - Pacific Island Network (Paperback)
Paul Berkowitz, James D. Jacobi, Rhonda K. Loh
R644 Discovery Miles 6 440 Ships in 18 - 22 working days

This document describes a protocol to monitor five terrestrial plant communities in seven national parks within the Pacific Island Network (PACN).

Earnest Occupations - Teaching, Writing, Gardening, and Other Local Work (Paperback): Richard Hague Earnest Occupations - Teaching, Writing, Gardening, and Other Local Work (Paperback)
Richard Hague
R497 Discovery Miles 4 970 Ships in 18 - 22 working days
Australian Good Birding Guide - Victoria (Paperback): Ted Wnorowski, Alex Wnorowski Australian Good Birding Guide - Victoria (Paperback)
Ted Wnorowski, Alex Wnorowski
R1,472 Discovery Miles 14 720 Ships in 18 - 22 working days
Rocky Mountain Climate Protocol Climate monitoring in the Greater Yellowstone and Rocky Mountain inventory and monitoring... Rocky Mountain Climate Protocol Climate monitoring in the Greater Yellowstone and Rocky Mountain inventory and monitoring networks, Version 1.0 (Paperback)
National Park Service
R369 Discovery Miles 3 690 Ships in 18 - 22 working days

The purpose of the National Park Service (NPS) Inventory & Monitoring (I&M) Program is to develop and provide scientifically credible information on the current status and long-term trends of the composition, structure, and function of park ecosystems, and to determine how well current management practices are sustaining those ecosystems. As part of the NPS's effort to improve park management through greater reliance on scientific knowledge, a primary role of the I&M Program is to collect, organize, and make available natural resource data and to contribute to the NPS institutional knowledge by transforming data into information through analysis, synthesis, and modeling of specific key vital signs. The I&M Program defines vital signs as a subset of physical, chemical, and biological elements and processes of park ecosystems that is selected to represent the overall health or condition of park resources, known or hypothesized effects of stressors, or elements that have important human values.

Dear Mr. President - Reagan Kennedy's Letter (Paperback): Lisa McDougall Dear Mr. President - Reagan Kennedy's Letter (Paperback)
Lisa McDougall
R376 Discovery Miles 3 760 Ships in 18 - 22 working days
Naturally Occurring Contaminants in the Piedmont and Blue Ridge Crystalline-Rock Aquifers and Piedmont Early Mesozoic Basin... Naturally Occurring Contaminants in the Piedmont and Blue Ridge Crystalline-Rock Aquifers and Piedmont Early Mesozoic Basin Siliciclastic-Rock Aquifers, Eastern United States, 1994?2008 (Paperback)
Charles A Cravotta, Zoltan Szabo, Bruce D Lindsey
R457 Discovery Miles 4 570 Ships in 18 - 22 working days
Pesticides in Wyoming Groundwater, 2008?10 (Paperback): Timothy T. Bartos, Michelle L Taylor, Cheryl A. Eddy-Miller Pesticides in Wyoming Groundwater, 2008?10 (Paperback)
Timothy T. Bartos, Michelle L Taylor, Cheryl A. Eddy-Miller
R439 Discovery Miles 4 390 Ships in 18 - 22 working days
Wet Deposition Monitoring Protocol - Monitoring Atmospheric Pollutants in Wet Deposition (Paperback): Kristi Morris Wet Deposition Monitoring Protocol - Monitoring Atmospheric Pollutants in Wet Deposition (Paperback)
Kristi Morris; Edited by National Park Service; Ellen Porter
R337 Discovery Miles 3 370 Ships in 18 - 22 working days

Since the late 1970s, the NPS Air Resources Division (ARD) has managed a comprehensive air quality program, emphasizing the collection of credible air quality information to support scientifically sound resource management decisions in parks. In general, air quality monitoring in parks, including monitoring of atmospheric deposition, ozone, and visibility, is done in conjunction with national networks. The authors describe the atmospheric deposition monitoring protocol.

Vegetation Classification and Mapping at Weir Farm National Historic Site, Connecticut (Paperback): Juliana P. Barrett, Thomas... Vegetation Classification and Mapping at Weir Farm National Historic Site, Connecticut (Paperback)
Juliana P. Barrett, Thomas E. Nosal, William a Millinor
R519 Discovery Miles 5 190 Ships in 18 - 22 working days

Vegetation classification and mapping was conducted at Weir Farm National Historic Site during the fall of 2003 and the summers of 2004 and 2005, creating a current digital geospatial vegetation database for the park. There are nine natural vegetation types that occur in the park; four upland forest types, one upland non-vascular type, two forested wetland types, and two wetland shrub thicket types that reflected the soil moisture conditions of the site. In addition, four anthropogenic vegetation types occurred; one successional forest and three non-forested types (two in mowed upland fields, and one herbaceous wetland seep). Each of these is described in detail in this report.

Draw & Color Insects & Bugs Coloring Book (Paperback): Mary Lou Brown, Sandy Mahony Draw & Color Insects & Bugs Coloring Book (Paperback)
Mary Lou Brown, Sandy Mahony
R161 Discovery Miles 1 610 Ships in 18 - 22 working days
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