نتایج جستجو برای: vegetated areas

تعداد نتایج: 403034  

2015
David R. Elliott Simon J. M. Caporn Felix Nwaishi R. Henrik Nilsson Robin Sen

The UK hosts 15-19% of global upland ombrotrophic (rain fed) peatlands that are estimated to store 3.2 billion tonnes of carbon and represent a critical upland habitat with regard to biodiversity and ecosystem services provision. Net production is dependent on an imbalance between growth of peat-forming Sphagnum mosses and microbial decomposition by microorganisms that are limited by cold, acid...

Journal: :Energy Policy 2023

In this study, we investigate how households' choice of energy source is influenced by the status local forest resource. We assume that households choose between clean fuels (e.g., kerosene, LPG, solar, and electricity), dirty biobased firewood, animal dung, crop residues, charcoal), mixed fuels. integrate socioeconomic data with high-resolution satellite on conditions from Uganda National Pane...

Journal: :Journal of environmental quality 2005
J Mark Powell Daniel F McCrory D B Jackson-Smith H Saam

Manure management plans require knowing the amount of manure produced, collected, and available for land-spreading. Whereas much information is available to calculate manure production, little is known about the types and amounts of manure actually collected on typical dairy farms. This study of 54 representative Wisconsin dairy farms showed significant regional, housing, and herd size differen...

Journal: :Atoll research bulletin 2023

Numerous low-lying, unconsolidated carbonate reef islands occur on the shallow reefs of South China, Sulu and Celebes Seas off coast Sabah, at northeastern end Borneo. A range sources, including maps charts, as well freely available satellite imagery, has been used to map location these islands, identify them, develop a classification. total 44 were differentiated into: a) sandy areas visible t...

Journal: :محیط شناسی 0
علی اکبر شمسی پور هیئت علمی دانشکده جغرافیا، دانشگاه تهران صدرالدین علوی پناه دانشجوی دکتری رشته تغییرات جهانی اقلیم و محیط زیست، دانشکده جغرافیا، دانشگاه هومبولت، برلین سلمان قریشی دانشکده جغرافیا، دانشگاه هومبولت، برلین

1. introductionhumans have actively managed and transformed the world’s landscapes for millennia. after the industrial revolution (between 1820 and 1840) with increase in sanitation, food security and quality of life the human population increased tremendously. urbanization, the demographic transition from rural to urban, is associated with shifts from an agriculture-based economy to mass indus...

Journal: :Journal of Hydraulic Research 2012

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