نتایج جستجو برای: nonwood forest products
تعداد نتایج: 393396 فیلتر نتایج به سال:
Amazonian forest produces environmental services such as maintenance of biodiversity, water cycling and carbon stocks. These services have a much greater value to human society than do the timber, beef and other products that are obtained by destroying the forest. Yet institutional mechanisms are still lacking to transform the value of the standing forest into the foundation of an economy based...
the study examined prospects of selected forest fruits and vegetables in enugu north agricultural zone of enugu state, nigeria. structured interview schedule and focus group discussion were used to collect data from a sample of one hundred and twenty (120) respondents. data were analyzed using matrix rank ordering, percentage, mean scores and standard deviation. results of the study identified ...
Smail, Robert A.; Lewis, David J. 2009. Forest-land conversion, ecosystem services, and economic issues for policy: a review. PNW-GTR-797. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 40 p. The continued conversion and development of forest land pose a serious threat to the ecosystem services derived from forested landscapes. We argue that de...
Temperate forests are an important carbon sink, yet there is debate regarding the net effect of forest management practices on carbon storage. Few studies have investigated the effects of different silvicultural systems on forest carbon stocks, and the relative strength of in situ forest carbon versus wood products pools remains in question. Our research describes (1) the impact of harvesting f...
This chapter describes the development of material-specific estimates of changes in forest carbon storage in EPA's Waste Reduction Model (WARM). It summarizes the approach used to estimate changes in forest carbon storage in managed forests resulting from source reduction and recycling of wood and paper products. Forests absorb (i.e., sequester) atmospheric carbon dioxide (CO 2) and store it in...
The authors have approximately 25 years experience in developing machine vision technology for the forest products industry. Based on this experience this paper will attempt to realistically predict what the future holds for this technology. In particular, this paper will attempt to describe some of the benefits this technology will offer, describe how the technology will probably evolve over t...
this study was accomplished in iran to investigate waste of common log sawing methods and to propose new sawing method. the old methods were performed due to difficulties on carrying logs out of forest. it seems necessary to change old methods due to development of sawmills and forest harvesting plans. the dimensions of wood products were collected to calculate the waste of old sawing methods ....
To ensure remote sensing MODIS hotspot (also known as active fire products or hotspots) quality and precision in forest fire control and management in Thailand, an increased level of confidence is needed. Accuracy assessment of MODIS hotspots utilizing field survey data validation is described. A quantitative evaluation of MODIS hotspot products has been carried out since the 2007 forest fire s...
ABSTRACT: This article analyzed the international competitiveness of exports forest products from 2008 to 2018. The information is available in Food and Agriculture Organization (FAO) indicators used were: revealed comparative advantage (RCA), trade openness index (Oi) contribution balance (CTB). Results showed that exportation are competitive, addition gains have been observed by RCA Europe, c...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید