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forest degeneration
相关语句
  森林退化
     The geographical distribution of eco environment is analyzed from the aspects of desertification, decline of ground water, decline of grassland and oasis, continental lake shrinkage, water pollution, soil erosion, forest degeneration, and soil salinization.
     从土地沙漠化、地下水下降、草原和绿洲退化、内陆湖泊萎缩、水质恶化、水土流失、森林退化和土壤盐碱化等方面分析了甘肃省生态环境变化的地理分布
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  “forest degeneration”译为未确定词的双语例句
     The thesis points out that since the resources are being threatened by besieging marsh to make rice fields,aquatic product cultivating and forest degeneration,the study on their acclimatization and conservation should be carried out as soon as possible.
     同时,还简述了主要水生花卉民间利用方式,指出了由于围沼造田、水产养殖和森林减少使资源正受到威胁,建议加强驯化研究和保护。
短句来源
  相似匹配句对
     forest .
     林。
短句来源
     The Forest Sports
     森林里的运动会
短句来源
     TRANSGANGLIA DEGENERATION
     超神经节的溃变
短句来源
     The degeneration of neurons was
     实验结果表明:普鲁卡因阻滞对脊髓神经元有明显保护作用。
短句来源
     STUDY ON SOIL DEGENERATION OF RECLAIMED FOREST-LANDS IN LOESS HILLY FOREST REGION
     黄土丘陵区林区开垦地土壤退化研究
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The paper dealt with the characteristics and conditions of eec--environmental disasters including forest degeneration, soil erosion, environmental pollution and land degradation in Shaanxi Province. The countermeasure of preventing and reducing the eec--environmental disasters is put forward.

本文论述了陕西省森林减少、水土流失、环境污染及土地退化等生态环境灾害的特征和现状,提出了减轻和防治生态环境灾害的对策。

Based on the analysis of the topography, landforms, climate conditions, rivers, water resources, forests and soil of Gansu Province, this study divides the factors influencing Gansu eco environment into two types: natural factors and human factors. It is considered that drought, flood and soil erosion together with human activities cause the change in eco environment. The geographical distribution of eco environment is analyzed from the aspects of desertification, decline of ground water, decline of grassland...

Based on the analysis of the topography, landforms, climate conditions, rivers, water resources, forests and soil of Gansu Province, this study divides the factors influencing Gansu eco environment into two types: natural factors and human factors. It is considered that drought, flood and soil erosion together with human activities cause the change in eco environment. The geographical distribution of eco environment is analyzed from the aspects of desertification, decline of ground water, decline of grassland and oasis, continental lake shrinkage, water pollution, soil erosion, forest degeneration, and soil salinization.

在分析甘肃省地形地貌、气候条件、河流及水资源、森林、土壤等自然环境的基础上 ,把影响甘肃省生态环境的因素分为自然因素和人为因素两大类 ,认为干旱、洪涝、水土流失等与人类活动共同促使甘肃省生态环境的变化 .从土地沙漠化、地下水下降、草原和绿洲退化、内陆湖泊萎缩、水质恶化、水土流失、森林退化和土壤盐碱化等方面分析了甘肃省生态环境变化的地理分布

There are lots of wild oil plant resources in low-landed deci du ous leaf and broad leaf mixed forest zone and red pine mixed forest zone in Chan gbai mountains.55 species of main oil plants were studied,including their bloomi ng time,bearing time, oil content,reproducing ways and utility. Some o f them can be cultivated and spreaded in temperate region. The utility of oil plants is briefly introduced .The resources have to be preserved and protected because of clearing forest, growing...

There are lots of wild oil plant resources in low-landed deci du ous leaf and broad leaf mixed forest zone and red pine mixed forest zone in Chan gbai mountains.55 species of main oil plants were studied,including their bloomi ng time,bearing time, oil content,reproducing ways and utility. Some o f them can be cultivated and spreaded in temperate region. The utility of oil plants is briefly introduced .The resources have to be preserved and protected because of clearing forest, growing ginseng and forest degeneration, and the study on acclimatization should be carried out.

长白山属温带气候,在低地落叶阔叶树混交林和红松混交林带中具有种类繁多的油脂植物资源。作者研究了55种主要油脂植物,包括生活型、花期、果期、油脂的含量、具体用途、繁殖的方法等。指出了部分油脂植物可以栽培并在温带地区推广。同时,还简述了油脂植物的民间利用方式,指出了由于清林、种参和森林减少,使资源正受到威胁,建议加强驯化研究和保护。

 
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