نتایج جستجو برای: multipurpose forestry

تعداد نتایج: 12878  

2016
Karin Eklöf Rolf Lidskog Kevin Bishop

Inputs of anthropogenic mercury (Hg) to the environment have led to accumulation of Hg in terrestrial and aquatic ecosystems, contributing to fish Hg concentrations well above the European Union standards in large parts of Fennoscandia. Forestry operations have been reported to increase the concentrations and loads of Hg to surface waters by mobilizing Hg from the soil. This summary of availabl...

Journal: :International Journal for Research in Applied Science and Engineering Technology 2021

Journal: :Annals OR 2007
Andres Weintraub

After finishing my Ph.D. in Berkeley in 1971, I needed a job in the San Francisco Bay Area, while my wife was finishing her Ph.D. in statistics. It was a tough year jobwise and the only available position was a part-time job with the US Forest Service Station in Berkeley, which funded a position as a Research Engineer at the OR Center at UC Berkeley. My boss and friend up to today, Daniel Navon...

Journal: :International Journal of Enviornment and Climate Change 2022

Intercropping of cow pea (Vigna unguiculata) with multipurpose tree in terms Grewia tenax was carried out under saline soils south Khartoum State Sudan. The objectives were to investigate the performance trees sub-irrigation regime as well find most agro forestry system suitable for soil. experiment during period March November 2017 completely randomized block design 3 replicates. treatments th...

2011
Tim Horstkotte Jon Moen Tomas Lämås Timo Helle

In northern Sweden, the availability of arboreal lichens (Bryoria fuscescens, Alectoria sarmentosa) as winter grazing resources is an important element in reindeer husbandry. With the industrialization of forestry, forests rich in arboreal lichens have diminished considerably. Here, we analyze how forestry has impacted lichen availability from the 1920's to the present day and model its future ...

2006
Erika Olofsson

Olofsson, E. 2006. Supporting management of the risk of wind damage in south Swedish forestry. Doctor’s dissertation. ISSN 1652-6880, ISBN 91-576-7095-1 Private forest owners in southern Sweden consider wind damage to be one of the most problematic risks from an economic perspective. A potential climate change also raises the question of the possible impact of such a climate change on the risk ...

2010
Gabriel Chauvet Jean-Luc Paris Olivier Devise André Charles

Classic methodologies for carbon footprint are made for conventional companies or territories. None is well adapted for entire sectors or parts of sectors, which usually contain numerous and very different companies, such in the forestry. In this work, we proposed a methodology to count GHG emissions for forestry in a region, from harvest preparation to the entrance of industries. We divided fo...

2011
Anssi Ahtikoski Seija Tuulentie Ville Hallikainen Vesa Nivala Eero Vatanen Liisa Tyrväinen Hannu Salminen

Forestry, as a large industry, has significant impacts on the quality of nature-based tourism landscapes in boreal forests. In Finland, the rapid growth of nature-based tourism has expanded outdoor recreation activities from protected areas into timber production forests; this is particularly so in northern Finland. This paper focuses on assessing balanced local net impacts of three alternative...

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