Fusarium head blight progression and yield response of bread wheat as affected by fungicides and spray regimes under field condition in southern Ethiopia     

Mengesha  Getachew Gudero  Abebe  Shiferaw Mekonnen  Fedilu  Kedir Bamud  Tadesse  Yosef Berihun  Mekonnen  Asaminew Amare  Esho  Abate G./Mikael  Lera  Zerhun Tomas  Shertore  Misgana Mitku  Cheleko  Dizgo Chencha  W/Silassie  Agdew Bekele 《Journal of Crop Science and Biotechnology》2022,25(5):565-582

Journal of Crop Science and Biotechnology - Fusarium head blight (FHB) is one of the destructive diseases in wheat-producing areas of the world. Field experiments were conducted during the 2019...  相似文献   

Reducing greenhouse gas emissions from deforestation and forest degradation: global land-use implications   总被引：3，自引：0，他引：3  

Miles L  Kapos V 《Science (New York, N.Y.)》2008,320(5882):1454-1455

Recent climate talks in Bali have made progress toward action on deforestation and forest degradation in developing countries, within the anticipated post-Kyoto emissions reduction agreements. As a result of such action, many forests will be better protected, but some land-use change will be displaced to other locations. The demonstration phase launched at Bali offers an opportunity to examine potential outcomes for biodiversity and ecosystem services. Research will be needed into selection of priority areas for reducing emissions from deforestation and forest degradation to deliver multiple benefits, on-the-ground methods to best ensure these benefits, and minimization of displaced land-use change into nontarget countries and ecosystems, including through revised conservation investments.  相似文献   

Global analysis of the protection status of the world’s forests     

Christine B. Schmitt  Neil D. Burgess  Lauren Coad  Alexander Belokurov  Charles Besanon  Lauriane Boisrobert  Alison Campbell  Lucy Fish  Derek Gliddon  Kate Humphries  Valerie Kapos  Colby Loucks  Igor Lysenko  Lera Miles  Craig Mills  Susan Minnemeyer  Till Pistorius  Corinna Ravilious  Marc Steininger  Georg Winkel 《Biological conservation》2009,142(10):2122-2130

This study presents a global analysis of forest cover and forest protection. An updated Global Forest Map (using MODIS2005) provided a current assessment of forest cover within 20 natural forest types. This map was overlaid onto WWF realms and ecoregions to gain additional biogeographic information on forest distribution. Using the 2008 World Database on Protected Areas, percentage forest cover protection was calculated globally, within forest types, realms and ecoregions, and within selected areas of global conservation importance. At the 10% tree cover threshold, global forest cover was 39 million km². Of this, 7.7% fell within protected areas under IUCN management categories I–IV. With the inclusion of IUCN categories V and VI, the level of global forest protection increased to 13.5%. Percentage forest protection (IUCN I–IV) varied greatly between realms from 5.5% (Palearctic) to 13.4% (Australasia), and for forest types from 3.2% (temperate freshwater swamp forest) to 28% (temperate broadleaf evergreen forest). Median protection of forest cover in 670 ecoregions (forest above a specified threshold) was 5.9% (IUCN I–IV); at IUCN I–VI, 46% of the ecoregions had less than 10% forest protection. Considering their biodiversity importance, forest protection within global priority areas was insufficient, e.g., median protection of 8.4% in biodiversity hotspots (IUCN I–IV). Results have policy relevance in terms of the target of the Convention on Biological Diversity (CBD), reconfirmed in 2008, to effectively conserve “at least 10% of each of the world’s forest types”. Regular updates of these analyses would allow progress towards achieving that target to be monitored.  相似文献