Santa Rita Experimental Range

Author by : Mitchel P. McClaran
Languange : en
Publisher by : Unknown
Format Available : PDF, ePub, Mobi
Total Read : 54
Total Download : 268
File Size : 53,8 Mb
GET BOOK

Description :


Proceedings Rmrs

Author by : Anonim
Languange : en
Publisher by : Unknown
Format Available : PDF, ePub, Mobi
Total Read : 33
Total Download : 549
File Size : 41,9 Mb
GET BOOK

Description :


New Publications

Author by : Anonim
Languange : en
Publisher by : Unknown
Format Available : PDF, ePub, Mobi
Total Read : 18
Total Download : 967
File Size : 47,9 Mb
GET BOOK

Description :


Rangeland Systems

Author by : David D. Briske
Languange : en
Publisher by : Springer
Format Available : PDF, ePub, Mobi
Total Read : 96
Total Download : 186
File Size : 42,7 Mb
GET BOOK

Description : This book is open access under a CC BY-NC 2.5 license. This book provides an unprecedented synthesis of the current status of scientific and management knowledge regarding global rangelands and the major challenges that confront them. It has been organized around three major themes. The first summarizes the conceptual advances that have occurred in the rangeland profession. The second addresses the implications of these conceptual advances to management and policy. The third assesses several major challenges confronting global rangelands in the 21st century. This book will compliment applied range management textbooks by describing the conceptual foundation on which the rangeland profession is based. It has been written to be accessible to a broad audience, including ecosystem managers, educators, students and policy makers. The content is founded on the collective experience, knowledge and commitment of 80 authors who have worked in rangelands throughout the world. Their collective contributions indicate that a more comprehensive framework is necessary to address the complex challenges confronting global rangelands. Rangelands represent adaptive social-ecological systems, in which societal values, organizations and capacities are of equal importance to, and interact with, those of ecological processes. A more comprehensive framework for rangeland systems may enable management agencies, and educational, research and policy making organizations to more effectively assess complex problems and develop appropriate solutions.


Grassland

Author by : Walter F. Wedin
Languange : en
Publisher by : ASA-CSSA-SSSA
Format Available : PDF, ePub, Mobi
Total Read : 64
Total Download : 490
File Size : 47,6 Mb
GET BOOK

Description : Grassland: Quietness and Strength for a New American Agriculture takes on the task of increasing our awareness of the vital role grass and grassland plants have in ensuring a sustainable future for America. Geared toward agriculturists, students, the public, and policymakers, Grassland aims to inspire and provide the reader the foundation needed to move into the future. Three main sections * track the history of grassland farming, highlighting the voices of grassland advocates * examine the current roles that grassland plays throughout the United States * look at the benefits grass-based agriculture can provide when grass is treated as an essential resource As Wendell Berry so eloquently argues in the foreword to Grassland, True farmers have minds that are complex and responsible...They understand and honor their debts to nature. They understand and honor their obligations to neighbors and consumers...In the time that is coming, we are going to need many more such farmers than we have, and we will need them much sooner than we can expect to get them.We will get them only to the extent that young people come along who are willing to fit their farming to the nature of their farms and their home landscapes, and who recognize the paramount importance of grass and grazing animals to good farming everywhere. This book will help that happen.


Landscapes Of Fraud

Author by : Thomas E. Sheridan
Languange : en
Publisher by : University of Arizona Press
Format Available : PDF, ePub, Mobi
Total Read : 85
Total Download : 965
File Size : 52,9 Mb
GET BOOK

Description : From the actions of Europeans in the seventeenth century to the real estate deals of the modern era, people making a living off the land in southern Arizona have been repeatedly robbed of their way of life. History has recorded more than three centuries of speculative failures that never amounted to much but left dispossessed people in their wake. This book seeks to excavate those failures, to examine the new social spaces the schemers struggled to create and the existing social spaces they destroyed. Landscapes of Fraud explores how the penetration of the evolving capitalist world-system created and destroyed communities in the Upper Santa Cruz Valley of Arizona from the late 1600s to the 1970s. Thomas Sheridan has melded history, anthropology, and critical geography to create a penetrating view of greed and power and their lasting effect on those left powerless. Sheridan first examines how OÕodham culture was fragmented by the arrival of the Spanish, telling how autonomous communities moving across landscapes in seasonal rounds were reduced to a mission world of subordination. Sheridan then considers the fate of the Tumac‡cori grant and Baca Float No. 3, another land grant. He tells the unbroken story of land fraud from Manuel Mar’a G‡ndaraÕs purchase of the ÒabandonedÓ Tumac‡cori grant at public auction in 1844 through the bankruptcy of the shady real estate developers who had fraudulently promoted housing projects at Rio Rico during the 1960s and Õ70s. As the Upper Santa Cruz Valley underwent a wrenching transition from a landscape of community to a landscape of fraud, the betrayal of the OÕodham became complete when land, that most elemental form of human space, was transformed from a communal resource into a commodity bought and sold for its future value. Today, Mission Tumac‡cori stands as a romantic icon of the past while the landscapes that supported it lay buried under speculative schemes that continue to haunt our history.


Plant Fire Interactions

Author by : Víctor Resco de Dios
Languange : en
Publisher by : Springer Nature
Format Available : PDF, ePub, Mobi
Total Read : 28
Total Download : 506
File Size : 53,8 Mb
GET BOOK

Description : This book provides a unique exploration of the inter-relationships between the science of plant environmental responses and the understanding and management of forest fires. It bridges the gap between plant ecologists, interested in the functional and evolutionary consequences of fire in ecosystems, with foresters and fire managers, interested in effectively reducing fire hazard and damage. This innovation in this study lies in its focus on the physiological responses of plants that are of relevance for predicting forest fire risk, behaviour and management. It covers the evolutionary trade-offs in the resistance of plants to fire and drought, and its implications for predicting fuel moisture and fire risk; the importance of floristics and plant traits, in interaction with landform and atmospheric conditions, to successfully predict fire behaviour, and provides recommendations for pre- and post- fire management, in relation with the functional composition of the community. The book will be particularly focused on examples from Mediterranean environments, but the underlying principles will be of broader utility.


Optical Approaches To Capture Plant Dynamics In Time Space And Across Scales

Author by : Eetu Puttonen
Languange : en
Publisher by : Frontiers Media SA
Format Available : PDF, ePub, Mobi
Total Read : 54
Total Download : 324
File Size : 50,5 Mb
GET BOOK

Description : Quantifying temporal changes in plant geometry as a result of genetic, developmental, or environmental causes is essential to improve our understanding of the structure and function relationships in plants. Over the last decades, optical imaging and remote sensing developed fundamental working tools to monitor and quantify our environment and plants in particular. Increased efficiency of methods lowered the barrier to compare, integrate, and interpret the optically obtained plant data across larger spatial scales and across scales of biological organization. In particular, acquisition speed at high resolutions reached levels that allow capturing the temporal dynamics in plants in three dimensions along with multi-spectral information beyond human visual senses. These advanced imaging capabilities have proven to be essential to detect and focus on analyzing temporal dynamics of plant geometries. The focus of this Research Topic is on optical techniques developed to study geometrical changes at the plant level detected within the wavelength spectrum between near-UV to near infrared. Such techniques typically involve photogrammetric, LiDAR, or imaging spectroscopy approaches but are not exclusively restricted to these. Instruments operating within this range of wavelengths allow capturing a wide range of temporal scales ranging from sub-second to seasonal changes that result from plant development, environmental effects like wind and heat, or genetically controlled adaption to environmental conditions. The Research Topic covered a plethora of methodological approaches as suggestions for best practices in the light of a particular research question and to a wider view to different research disciplines and how they utilize their state-of-the-art techniques in demonstrating potential use cases across different scales.


The Politics Of Scale

Author by : Nathan F. Sayre
Languange : en
Publisher by : University of Chicago Press
Format Available : PDF, ePub, Mobi
Total Read : 56
Total Download : 749
File Size : 55,8 Mb
GET BOOK

Description : Rangelands are vast, making up one quarter of the United States and forty percent of the Earth’s ice-free land. And while contemporary science has revealed a great deal about the environmental impacts associated with intensive livestock production—from greenhouse gas emissions to land and water degradation—far less is known about the historic role science has played in rangeland management and politics. Steeped in US soil, this first history of rangeland science looks to the origins of rangeland ecology in the late nineteenth-century American West, exploring the larger political and economic forces that—together with scientific study—produced legacies focused on immediate economic success rather than long-term ecological well being. During the late 1880s and early 1890s, a variety of forces—from the Homestead Act of 1862 to the extermination of bison, foreign investment, and lack of government regulation—promoted free-for-all access to and development of the western range, with disastrous environmental consequences. To address the crisis, government agencies turned to scientists, but as Nathan F. Sayre shows, range science grew in a politically fraught landscape. Neither the scientists nor the public agencies could escape the influences of bureaucrats and ranchers who demanded results, and the ideas that became scientific orthodoxy—from fire suppression and predator control to fencing and carrying capacities—contained flaws and blind spots that plague public debates about rangelands to this day. Looking at the global history of rangeland science through the Cold War and beyond, The Politics of Scale identifies the sources of past conflicts and mistakes and helps us to see a more promising path forward, one in which rangeland science is guided less by capital and the state and more by communities working in collaboration with scientists.


Dreaming Of Sheep In Navajo Country

Author by : Marsha Weisiger
Languange : en
Publisher by : University of Washington Press
Format Available : PDF, ePub, Mobi
Total Read : 18
Total Download : 715
File Size : 48,6 Mb
GET BOOK

Description : Dreaming of Sheep in Navajo Country offers a fresh interpretation of the history of Navajo (Din�) pastoralism. The dramatic reduction of livestock on the Navajo Reservation in the 1930s -- when hundreds of thousands of sheep, goats, and horses were killed -- was an ambitious attempt by the federal government to eliminate overgrazing on an arid landscape and to better the lives of the people who lived there. Instead, the policy was a disaster, resulting in the loss of livelihood for Navajos -- especially women, the primary owners and tenders of the animals -- without significant improvement of the grazing lands. Livestock on the reservation increased exponentially after the late 1860s as more and more people and animals, hemmed in on all sides by Anglo and Hispanic ranchers, tried to feed themselves on an increasingly barren landscape. At the beginning of the twentieth century, grazing lands were showing signs of distress. As soil conditions worsened, weeds unpalatable for livestock pushed out nutritious native grasses, until by the 1930s federal officials believed conditions had reached a critical point. Well-intentioned New Dealers made serious errors in anticipating the human and environmental consequences of removing or killing tens of thousands of animals. Environmental historian Marsha Weisiger examines the factors that led to the poor condition of the range and explains how the Bureau of Indian Affairs, the Navajos, and climate change contributed to it. Using archival sources and oral accounts, she describes the importance of land and stock animals in Navajo culture. By positioning women at the center of the story, she demonstrates the place they hold as significant actors in Native American and environmental history. Dreaming of Sheep in Navajo Country is a compelling and important story that looks at the people and conditions that contributed to a botched policy whose legacy is still felt by the Navajos and their lands today.


Structure And Function Of A Chihuahuan Desert Ecosystem

Author by : Kris M. Havstad
Languange : en
Publisher by : Oxford University Press
Format Available : PDF, ePub, Mobi
Total Read : 71
Total Download : 649
File Size : 44,6 Mb
GET BOOK

Description : The Jornada Basin LTER is located in the Chihuahuan Desert, the largest in North America. This region of south central New Mexico has a history of nearly 100 years as the basis for scientific research. This work gives a thorough, encompassing review of the tremendous array of observations resulting from experiments conducted in this ecosystem. Beginning with thorough descriptions of the most salient features of the region, the book then reviews a wide range of archived and active data sets on a diversity of biotic and abiotic features. It next presents a syntheses of important topics including livestock grazing and remediation efforts. A concluding chapter provides a synthesis of the principles that have emerged from this body of work, and how these relate to the broader fields of ecology and natural resource management. It concludes with recommendations for future research directions. The insightful views expressed in this volume should guide management of arid landscapes globally. This is the sixth volume in the Long Term Ecological Network Series.


Effects Of Climate Change On Agriculture Land Resources Water Resources And Biodiversity In The United States

Author by : Peter Backlund
Languange : en
Publisher by : DIANE Publishing
Format Available : PDF, ePub, Mobi
Total Read : 91
Total Download : 863
File Size : 47,5 Mb
GET BOOK

Description : This report by the Nat. Science and Tech. Council¿s U.S. Climate Change Science Program (CCSP) is part of a series of 21 reports aimed at providing current assessments of climate change science to inform public debate, policy, and operational decisions. These reports are also intended to help the CCSP develop future program research priorities. The CCSP¿s guiding vision is to provide the Nation and the global community with the science-based knowledge needed to manage the risks and capture the opportunities associated with climate and related environmental changes. This report assesses the effects of climate change on U.S. land resources, water resources, agriculture, and biodiversity. It was developed with broad scientific input. Illus.


Natural Environments Of Arizona

Author by : Peter F. Ffolliott
Languange : en
Publisher by : University of Arizona Press
Format Available : PDF, ePub, Mobi
Total Read : 62
Total Download : 883
File Size : 49,8 Mb
GET BOOK

Description : Ten authors present an overview of the diverse natural environments in Arizona, including information on the state's climate, geology, soil and water resources, flora and fauna, and human impacts on the fragile ecosystems.


Igarss 2004

Author by : Anonim
Languange : en
Publisher by : Unknown
Format Available : PDF, ePub, Mobi
Total Read : 12
Total Download : 529
File Size : 48,6 Mb
GET BOOK

Description :


General Technical Report Rmrs

Author by : Anonim
Languange : en
Publisher by : Unknown
Format Available : PDF, ePub, Mobi
Total Read : 45
Total Download : 427
File Size : 44,8 Mb
GET BOOK

Description :


Usda Forest Service Experimental Forests And Ranges

Author by : Deborah C. Hayes
Languange : en
Publisher by : Springer
Format Available : PDF, ePub, Mobi
Total Read : 97
Total Download : 834
File Size : 42,9 Mb
GET BOOK

Description : USDA Forest Service Experimental Forests and Ranges (EFRs) are scientific treasures, providing secure, protected research sites where complex and diverse ecological processes are studied over the long term. This book offers several examples of the dynamic interactions among questions of public concern or policy, EFR research, and natural resource management practices and policies. Often, trends observed – or expected -- in the early years of a research program are contradicted or confounded as the research record extends over decades. The EFRs are among the few areas in the US where such long-term research has been carried out by teams of scientists. Changes in society’s needs and values can also redirect research programs. Each chapter of this book reflects the interplay between the ecological results that emerge from a long-term research project and the social forces that influence questions asked and resources invested in ecological research. While these stories include summaries and syntheses of traditional research results, they offer a distinctly new perspective, a larger and more complete picture than that provided by a more typical 5-year study. They also provide examples of long-term research on EFRs that have provided answers for questions not even imagined at the time the study was installed.


Natural Areas Journal

Author by : Anonim
Languange : en
Publisher by : Unknown
Format Available : PDF, ePub, Mobi
Total Read : 26
Total Download : 234
File Size : 51,6 Mb
GET BOOK

Description :


Research Paper Rmrs

Author by : Anonim
Languange : en
Publisher by : Unknown
Format Available : PDF, ePub, Mobi
Total Read : 40
Total Download : 240
File Size : 55,7 Mb
GET BOOK

Description :


Mesquite Removal And Mulching Impacts On Herbage Production On A Semidesert Grass Shrub Rangeland

Author by : Stacy Pease
Languange : en
Publisher by : Unknown
Format Available : PDF, ePub, Mobi
Total Read : 82
Total Download : 725
File Size : 52,8 Mb
GET BOOK

Description : The objectives of our study were to determining the effects of velvet mesquite (Prosopis velutina) removal, control of the resulting basal sprouts, and mulching treatments on herbage production (standing biomass) and selected soil chemicals (nutrients) shown to affect herbage production on the Santa Rita Experimental Range. Mesquite control treatments consisted of overstory removal by chain saw with and without control of the resulting basal sprouts. Mulching treatments were applications of mesquite wood chips, commercial compost, or lopped-and-scattered mesquite branchwood. Mesquite removal resulted in increases for total herbage production and the production of native herbaceous species. Production of the nonnative Lehmann lovegrass (Eragrostis lehmanniana), the dominant herbaceous species, was unchanged. The mulching treatments did not affect herbage production. None of the treatments affected soil chemical properties thought to influence herbage production.


Rangeland Ecology Management

Author by : Anonim
Languange : en
Publisher by : Unknown
Format Available : PDF, ePub, Mobi
Total Read : 35
Total Download : 769
File Size : 50,5 Mb
GET BOOK

Description :