نتایج جستجو برای: deserts

تعداد نتایج: 2047  

2017
Wei Cheng John C. Moore Long Cao Duoying Ji Liyun Zhao

Geoengineering, the deliberate large-scale manipulation of earth's energy balance to counteract global warming, is an attractive proposition for sparsely populated deserts. We use the BNU and UVic Earth system models to simulate the effects of irrigating deserts under the RCP8.5 scenario. Previous studies focused on increasing desert albedo to reduce global warming; in contrast we examine how e...

2005
Toshiyuki Fujioka John Chappell Masahiko Honda Igor Yatsevich Keith Fifield Derek Fabel

Stony deserts are durable indicators of aridity but until now have not been directly dated. Using 21Ne and 10Be produced in surface rocks by cosmic rays, we show that Australian stony deserts formed 2–4 Ma, at the time when global cooling initiated the Quaternary ice ages and intensified aridity-induced major landscape changes in central Australia. This is the first direct determination of ston...

Journal: :Media and Communication 2023

<span>To date, the study of news deserts, geographic spaces lacking local and information, has largely focused on countries in Global North, particularly United States, predominantly been interested causes consequences disappearance media outlets (e.g., newspapers TV stations) to social fabric a community. In this article, we extend concept “news deserts” by drawing literature geography A...

2017
Stephanie N. Pike Erika S. Trapl Jill K. Clark Chaturia D. Rouse Bethany A. Bell Ashwini R. Sehgal Thomas To Elaine Borawski Darcy A. Freedman

The US Department of Agriculture (USDA) characterizes food deserts as low-income neighborhoods that distinctly lack supermarkets and grocery stores (1). This definition elevates the importance of large food retailers where Americans spend most of their food dollars and deemphasizes the contributions of smaller food stores such as convenience and dollar stores for food choice decision making. Sm...

Journal: :International Journal of Geosciences 2019

Journal: :Advances in Microbiology 2013

2011

1. Soil Formation is a Global Natural Process 2. Factors of Soil Formation 3. Stages of Soil Formation 4. Processes of Soil Formation 5. Genesis of Soils under Different Ecologic Conditions 5.1. Genesis of Soils under Conditions of Cryogenesis 5.2. Genesis of Soils of Forest Landscapes in a Zone of Moderate Climate 5.3. Genesis of Soils in Landscapes of Steppes and Prairies 5.4. Genesis of Soil...

Journal: :Health promotion journal of Australia : official journal of Australian Association of Health Promotion Professionals 2006
Lisel A O'Dwyer John Coveney

METHODS We use a geographic information system to measure availability and accessibility of supermarkets in four case study local government areas (LGAs). The location of supermarkets is analysed in relation to residential dwellings, car ownership and in terms of travel distance along the road network. RESULTS This methodology identifies differences in both availability and accessibility betw...

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