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从“爱神”到“革命神”:白薇创作主题的嬗变
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作者 黄悠纯 《郴州师范高等专科学校学报》 2001年第3期33-35,40,共4页
白薇在 2 0世纪 2 0、30年代的创作跨越了两个时期———五四时期和左联时期 ;其创作主题 ,也随其人生经历和时代潮流的变化而变化 。
关键词 白薇 文学创作 创作主题 《琳丽》 《苏斐》 《爱网》
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Analysis of the Estonian Forest Conservation Area Network
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作者 Henn Korjus Diana Laarmann Andres Kiviste 《Journal of Environmental Science and Engineering(B)》 2012年第6期779-788,共10页
Estonian Forestry Development Programme set in 2003 ambitious goal that area of strictly protected forests should increase at least to 10% from total forest area in Estonia before 2010 by expanding the area of old-gro... Estonian Forestry Development Programme set in 2003 ambitious goal that area of strictly protected forests should increase at least to 10% from total forest area in Estonia before 2010 by expanding the area of old-growth under protection, improving the representativeness of conservation areas and establishment of large conservation sites. Inventory of forests was carried out on existing and possible new conservation areas within the Estonian Forest Conservation Area Network project (EFCAN) in 1999-2001. EFCAN project had remarkable results. The share of strictly protected forests has increased to 7.8% of total forest area by 2009 and the network of conservation areas is quite well covering all forest ecosystems in Estonia. Several selected areas are still not protected for different reasons. These areas should still be considered for protection as the areas may lose their conservation value. Several forest types (meso-eutrophic, eutrophic boreo-nemoral and eutrophic paludifying forests) should have larger area for conservation and large disturbance areas (wind damage, forest fire) should be also included into the network. 展开更多
关键词 Forest conservation biological diversity ecological network
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