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《中共中央国务院关于加快林业发展的决定》把实施“科教兴林”战略作为新形势下加快林业发展的两项基本措施之一 ,表明国家重视林业科技、关心林业科技 ,支持林业科技的氛围正在形成 ;也表明国家在林业建设中 ,大力实施“科教兴林”战略 ,以科技为支撑 ,作为全面提高林业建设科技含量、建设水平和建设效益的出发点和落脚点。新疆林业技术推广总站曾从1991年起进驻叶城县进行核桃良种良法推广。当时全县核桃面积为 6 0 0公顷 ,以核桃为主的林果业人均收入 77.4元 ,占全县 2 1 96万农民人均年收入 (6 94元 /人 )的11 5 5 %。通过良种良法的示… 相似文献
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<正> 陕西林业科技事业同全国一样,取得了长足发展,科技对林业的贡献率有了很大提高,林业科技正以勃勃生机为林业改革和建设注入新的活力,成为林业发展的强大动力和有力支撑。形势的发展要求我们加快改革步伐,适应市场经济的发展,壮大自己。在科研方向上如何转轨,在市场经济中如何定位, 相似文献
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<正> 2000年是世纪之交的一年,也是完成国民经济“九五”计划和逐步启动“十五”计划的一年。世纪之末,在党中央、国务院的关怀下,全国农业科技深化改革、加速发展,特别是在加快农业高新技术产业发展、促进农业结构调整、加快生态环境建设等方面进行了深入的探索并取得初步成果。结合我国当前林业工作的重点,我就我国林业和林业科技发展的主要问题与议题发表以下看法。 相似文献
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<正> 科学技术是第一生产力,实现林业大发展,出奇制胜在科技,温家宝同志在全国林业科技大会上曾经指出:搞好生态建设,加快林业发展,要靠政策、靠投入、靠机制,最根本的还是要靠科学技术。科学技术已经成为当前和今后一个时期加快林业发展的决定性因素。 相似文献
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<正> 科技下乡服务,加快林业科技与生产的结合,是深化科技体制改革的重要内容,是林业发展的需要。为此北京市林业局提出,林业科技下乡要以提高林业质量和效益为中心,做到“五个结合”:结合我市重大林业工程建设,结合山区、沙区综合治理开发,结合林业扶贫和富山计划,结合林业产业发展,结合林 相似文献
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<正> 实施西部大开发战略,加强西部生态环境保护和建设,对加快西部地区社会经济可持续发展具有十分重要的意义。而林业作为生态环境建设的主体,对于改善生态环境与发展经济有特殊的作用。如何依靠科技进步,加大林业生产科技含量,加快现有科技成果的转化,根据生态工程建设需要,开展科技攻关,集中精力解决林业生态建设中的重大技术难题,搞好科技支撑工作是提高工程建设质量的重要保障和内在动力。 相似文献
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Menghui Li Jin Li Xingliang Liu Han Ru Chao Sun 《International journal of geographical information science》2019,33(5):922-944
This research presents an operable zoning approach for phased evacuations adapted to disasters with spatio-temporal randomness. As a criterion for prioritizing evacuation order, evacuation risk is formulated by taking into consideration the estimated residual evacuation horizon associated with the characteristics of the disaster, the estimated time-dependent capacities of outbound lanes related to network supply, and the time-dependent evacuation demand of an evacuation unit. The modeling of the subzone determined for phased evacuation is based on rescue demand, the characteristics of the disaster, and network supply, and is labeled as a high-risk evacuation zone (HEZ). The range of HEZ features a time-evolving pattern in accordance with phased evacuation. The zone partition paradigm can be seamlessly applied to different types of disasters, especially those with high spatio-temporal randomness. It also provides a generalizable approach for subzone partitioning in phased evacuation by minimizing evacuation risk. The proposed approach is examined on numerical experiments through the road network of Xi’an, China, the results of which highlight its strength in increased adaptability to the dynamics of disaster impact and improved performance in evacuation operation. 相似文献
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PRITHVISH NAG 《International journal of geographical information science》2013,27(2):181-187
Abstract Attempts have been made by different organizations in India to organize data in order to develop a suitable information system. These attempts were oriented towards specific uses, such as natural resources, data management, thematic mapping and the like. In some attempts software has been developed for some specific purpose. It is not an easy task to develop an information system for a country such as India. Its extent in latitude and longitude is well above average. There are federal and state agencies for the collection of data and the preparation of maps. The geographical information concerning India is available from the following sources: the administrative areas of states, union territories, districts, sub-districts and villages; survey sheets; remote sensing images; aerial photographs; and thematic base maps of the National Atlas and Thematic Mapping Organisation. There are other map series available which have been used for socio-economic mapping. By the end of 1987 the Indian Remote Sensing Satellite will be launched and then remotely-sensed data will be readily available. Considering the geographical bases available in the country, five levels can be identified for developing an information system for India. Some of the thematic maps at 1:1000 000 scale can be used for initiating such a geographical information system. 相似文献
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