Weed Ecology

Weed Ecology

Author: Steven R. Radosevich

Publisher: John Wiley & Sons

Published: 1997-02-05

Total Pages: 860

ISBN-13: 9780471116066

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Weeds are successful plants, but on their own terms. Looking at weeds from an ecological viewpoint, emphasising the way in which one species interacts with others, the authors show that weeds are questionable mainly in that they are out-of-place.


Weed Biology and Management

Weed Biology and Management

Author: Inderjit

Publisher: Springer Science & Business Media

Published: 2013-11-11

Total Pages: 550

ISBN-13: 9401705526

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Weeds hold an enigmatic and sometimes-controversial place in agriculture, where they are generally reviled, grudgingly tolerated, and occasionally admired. In most cases, growers make considerable effort to reduce the negative economic impact of weeds because they compete with crops for resources and hinder field operations, thereby affecting crop productivity and quality, and ultimately the sustainability of agriculture. Weed control in production agriculture is commonly achieved through the integration of chemical, biological, and mechanical management methods. Chemicals (herbicides) usually inhibit the growth and establishment of weed plants by interfering with various physiological and biochemical pathways. Biological methods include crop competition, smother crops, rotation crops, and allelopathy, as well as specific insect predators and plant pathogens. Mechanical methods encompass an array of tools from short handled hoes to sophisticated video-guided robotic machines. Integrating these technologies, in order to relieve the negative impacts of weeds on crop production in a way that allows growers to optimize profits and preserve human health and the environment, is the science of weed management.


The Cultural Creatives

The Cultural Creatives

Author: Paul H. Ray

Publisher: Harmony

Published: 2000

Total Pages: 392

ISBN-13:

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Are You a Cultural Creative? Do you dislike all the emphasis in modern culture on success and "making it," on getting and spending, on wealth and luxury goods? Do you care deeply about the destruction of the environment and would pay higher taxes or prices to clean it up and to stop global warming? Are you unhappy with both the left and the right in politics and want to find a new way that does not simply steer a middle course? In this landmark book, sociologist Paul H. Ray and psychologist Sherry Ruth Anderson draw upon thirteen years of survey research studies on more than 100,000 Americans, plus more than 100 focus groups and dozens of in-depth interviews. They reveal who the Cultural Creatives are and the fascinating story of their emergence over the last generation, using vivid examples and engaging personal stories to describe their distinctive values and lifestyles. The Cultural Creatives care deeply about ecology and saving the planet, about relationships, peace, and social justice, about self-actualization, spirituality, and self-expression. Surprisingly, they are both inner-directed and socially concerned; they're activists, volunteers, and contributors to good causes more often than other Americans. But because they've been so invisible, they are astonished to find out how many others share both their values and their way of life. Once they realize their numbers, their impact on America promises to be enormous, shaping a new agenda for the twenty-first century. What makes the appearance of the Cultural Creatives especially timely is that our civilization is in the midst of an epochal change, caught between globalization, accelerating technologies, and adeteriorating planetary ecology. A creative minority can have enormous leverage to carry us into a new renaissance instead of a disastrous fall. The book ends with a number of maps for the remarkable journey that our civilization is embarked upon: initiations, evolutionary models, scenarios, and the elements of a new mythos for our time. The Cultural Creatives offers a more hopeful future and prepares us all for a transition to a new, saner, and wiser culture.


Thermal Imaging Techniques to Survey and Monitor Animals in the Wild

Thermal Imaging Techniques to Survey and Monitor Animals in the Wild

Author: Kirk J Havens

Publisher: Academic Press

Published: 2015-09-22

Total Pages: 378

ISBN-13: 0128033851

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Thermal Imaging Techniques to Survey and Monitor Animals in the Wild: A Methodology provides a manual for anyone interested in understanding thermal imaging and its usefulness in solving a wide range of problems regarding the observation of wildlife. In the last decade, the cost of thermal imaging technology has significantly decreased, making the equipment more widely available. This book offers an overview of thermal physics and the thermal imager, along with a methodology to optimize the window of opportunity so that wildlife can be observed and studied in their natural habitat. Users will find the knowledge and tools to formulate a sound survey design, with detailed sections on the theory and performance characteristics of thermal imaging cameras utilizing cooled quantum detectors as the sensitive element and additional information on the uncooled micro bolometric imagers which have been introduced into the camera market in past decades. The methodology presented is logical and simple, yet it presents a detailed understanding of the topic and how it applies to the critically interlinked disciplines of biology, physics, micrometeorology, and animal physiology. - Covers the technical aspects of thermal imaging allowing readers to design better experiments - Provides a clear description of the properties of thermal imaging - Includes approaches to consider before integrating thermal cameras into a field


Letters at 3am

Letters at 3am

Author: Michael Ventura

Publisher: Spring Publications

Published: 1993

Total Pages: 264

ISBN-13:

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"I'd rather have one or two of his whiplashing essays in my hands than almost any tome of philosophy". -- Thomas Moore


News of the Weird

News of the Weird

Author: Chuck Shepherd

Publisher: Plume Books

Published: 1989

Total Pages: 180

ISBN-13: 9780452263116

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For news junkies and fans of the bizarre-but-true, here is an outrageous collection of all-real, all-weird news stories culled from the nation's mainstream newspapers. Line art throughout.


Methane and Climate Change

Methane and Climate Change

Author: Dave Reay

Publisher: Routledge

Published: 2010-08-12

Total Pages: 274

ISBN-13: 1136541527

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Methane is a powerful greenhouse gas and is estimated to be responsible for approximately one-fifth of man-made global warming. Per kilogram, it is 25 times more powerful than carbon dioxide over a 100-year time horizon -- and global warming is likely to enhance methane release from a number of sources. Current natural and man-made sources include many where methane-producing micro-organisms can thrive in anaerobic conditions, particularly ruminant livestock, rice cultivation, landfill, wastewater, wetlands and marine sediments. This timely and authoritative book provides the only comprehensive and balanced overview of our current knowledge of sources of methane and how these might be controlled to limit future climate change. It describes how methane is derived from the anaerobic metabolism of micro-organisms, whether in wetlands or rice fields, manure, landfill or wastewater, or the digestive systems of cattle and other ruminant animals. It highlights how sources of methane might themselves be affected by climate change. It is shown how numerous point sources of methane have the potential to be more easily addressed than sources of carbon dioxide and therefore contribute significantly to climate change mitigation in the 21st century.