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<正>近年来,江苏省镇江市润州区以林地资源为依托,以科技手段为支撑,充分利用现有林下土地资源和林荫空间,大力发展林下种植、林下养殖和森林旅游,打造"龙头企业+基地+农户"的产业化发展模式,逐步将林下经济培育成带动区域经济发展和农民增收的"金矿"。据统计,作为镇江城市山林的重要组成部分,润州区现有林地4万亩,2013年底全区林下经济发展面积已达到1500余亩,产值达到5000万元, 相似文献
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森林覆盖率84.17,是全国平均水平的三倍多;空气质量达到国家二级标准;水力资源蕴藏量为38.5万千瓦。近年来,素有"九山半水半分田"之称的昭平县充分利用丰富的森林资源,发展循环经济,成功走出了一条"以山造林,以林蓄水,以水发电,以电 相似文献
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廊坊市精神文明建设委员会办公室 《中国城市林业》2004,2(5):30-31
近年来,河北省廊坊市委、市政府坚持树立和落实科学发展观,牢固树立绿色就是生命力、绿色就是竞争力的理念,以"园林式、生态型、现代化"为城市定位,连续六年组织开展了"营造城市森林、造福廊坊人民"社会公益活动,大力推进城市生态建设,精心打造"绿色廊坊"城市品牌。截至2004年7月,市区共植树754万株,其中乔木254万株,新增绿地117万m2,城市绿化覆盖率达到42%,绿地率达到36%,人均公共绿地面积达到11m2,全年空气质量指数二级以上天数达到310天,初步实现了"城在林中,林在城中"的目标。
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山东省德州市森林公安局 《森林公安》2014,(6):17-19
<正>山东省德州市地处鲁西北平原,素有"九达天衢、神京门户"之称。现辖3区2市8县,总面积1.03万平方公里,总人口570万人。截止2013年底,活立木蓄积量达到2580万立方米,果品产量达到63.7万吨,林业总产值达到223亿元,全市森林覆盖率达到33%。近年来,德州市森林公安紧紧围绕"保护森林、打击犯罪,公正执法、为民服务"的工作方针,攻坚克难,开拓创新,基 相似文献
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《广西林业》2011,(Z1):52-55
贵港市在"十一五"期间围绕建设"生态农村、园林城市"目标开展森林资源培育、保护和利用工作,全市现代林业建设不断推进,林业地位和形象不断提升.
--生态建设成效显著.贵港市确立"生态农村、园林城市"的发展思路,采取一系列重大举措推进全市生态建设,尤其是着力推出了生态公益林保护、退耕还林等重点生态建设工程.以发展速生丰林为重点,引导和扶持企业、社会能人参与造林,采取"龙头企业+农民合作经济组织+农户"等模式,通过独资、合资、合作、联营、股份制等方式,实行多种因素联动,极大调动了社会各方参与速丰林建设的积极性.5年来,全市完成造林77.94万亩,比计划61.55万亩增加16.39万亩;完成西江沿岸绿化41.3公里,占任务12公里的344.17%;森林覆盖率达到44.69%,比"十五"期末提高2.79个百分点;活立木蓄积达到1780万立方米,比"十五"期末增加240万立方米;以龙眼、荔枝、玉桂、八角为主的经济林面积109.21万亩,为林农增收提供了可靠保证. 相似文献
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<正>2019年,卢龙县以县委、县政府提出的"连续三年达到10万亩"为目标,坚持区域化、规模化、品牌化和股权化"四化"工作思路,实施造林绿化"十大工程",大力发展以苹果、黄桃、大樱桃、山楂等为主的经济林和以油松为主的生态林。截至4月底,全县已完成人工造林7.7万余亩,占秦皇岛市下达任务的140%。坚持高位推动,强势推进国土绿化。一是健全机制抓造林。形成了以主要领导挂帅、其他县领导分包、分管领导一线督导,资源规划部门具体抓、部门协调联动、乡镇村具体落实的工作机制。2019年以 相似文献
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Julie Urquhart 《Small-Scale Forestry》2007,6(3):257-271
This paper examines the trade-offs between woodland management for timber and public good outputs in English woodlands. Recent
evidence suggests that some public good values may be declining as a result of a lack of woodland management. Such under-management
has been attributed to the decline in timber values and reduction in the productivity of woodlands and forests for timber
products. It is argued that assessing the management needs of woodlands in order to enhance public good outputs presents a
complex challenge and often depends on a variety of factors, including location, type of woodland, age, condition, substitutability
and ownership motivation. However, in most instances a moderate level of management (whether for timber or otherwise) is likely
to be beneficial for public good outputs.
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Julie UrquhartEmail: |
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Sérgio Godinho Artur Gil Nuno Guiomar Nuno Neves Teresa Pinto-Correia 《Agroforestry Systems》2016,90(1):23-34
Mapping the land-cover pattern dominated by complex Mediterranean silvo-pastoral systems with an accuracy that enables precise monitoring of changing tree-cover density is still an open challenge. The main goal of this paper is to demonstrate the implementation and effectiveness of the Forest Canopy Density (FCD) model in producing a remote sensing-based and detailed map of montado canopy density over a large territory in southern Portugal. This map will make a fundamental contribution to accurately identifying and assessing High Nature Value farmland in montado areas. The results reveal that the FCD model is an effective approach to estimating the density classes of montado canopy (overall accuracy = 78.0 %, kappa value = 0.71). The study also shows that the FCD approach generated good user’s and producer’s accuracies for the three montado canopy-density classes. Globally, the results obtained show that biophysical indices such as the advanced vegetation index, the bare soil index, the shadow index and the thermal index are suitable for estimating and mapping montado canopy-density classes. These results constitute the first remote sensing-based product for mapping montado canopy density that has been developed using the FCD model. This research clearly demonstrates that this approach can be used in the context of Mediterranean agro-forestry systems. 相似文献
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笔者采用"云大120"、GA_3、BA-6等不同药剂组合对新生系3号和黔阳无核椪柑进行了保花保果试验。试验结果表明:"云大120"组合对黔阳无核椪柑保花保果效果很好,坐果率达21.10%,最高达25.00%,比喷清水作对照高5.40%;细胞分裂素组合对黔阳无核椪柑保花保果有增效作用,坐果率达30.91%,比对照高1.10%。 相似文献
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将解放CA3165K2E型长头柴油自卸汽车底盘用于林业运材汽车底盘,对其车架、板簧和后桥等总成采用的金属材料和制造工艺进行了分析,并对一年的生产运输成本进行统计,结果表明,解放CA3165K2E型汽车技术先进、质量可靠、坚固耐用,性价比高、经济性好,能够给林业木材运输企业带来良好的经济效益。 相似文献
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在分层抽样问卷调查的基础上,运用方差分析、因子分析及模糊综合评判等方法对华中农业大学校园环境质量主观评价因子进行了具体分析.方差分析结果表明:不同成长环境的学生对"校内的交通体系"和"文娱场所适用性"等因子的评价结果有显著差异,而对其它因子的评价结果没有显著差异;不同性别的学生对"总体环境品质"、"宿舍适用性评价"和"到教室时间满意度"等因子的评价结果有显著差异,而对其它因子的评价结果没有显著差异;不同专业的学生对大多数因子的评价结果有显著或极显著差异.因子分析结果为:对23个因子进行旋转因子分析从而得到主成分、并依次命名为交通可达性因子、总体环境意象因子、建筑适用性因子、校园生活环境因子及物理环境因子.模糊评价结果表明:该校的环境质量主观评定等级为"一般"至"好". 相似文献
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Summary The applicability of models for describing the short-term properties of chipboard were investigated using the results from experiments conducted on samples of a laboratory-made chipboard (comprised of Scots pine chips and urea formaldehyde resin), and sections of urea formaldehyde and Scots pine strips.The rule of mixtures equations, modified for short fibre composites, were employed to predict the strength and stiffness of chipboard. They were found to provide a good estimate of both the chipboard strength and modulus of elasticity, with the assumptions being made that the chips were aligned parallel to the direction of applied stress and that the chips could be treated as having cylindrical geometry.The results of this investigation revealed that chipboard is a highly unusual material. Compared to conventional fibre-reinforced composites, chipboard has a very high volume fraction of fibres, and the similar moduli of elasticity of the fibres and matrix can result in the concentration of stress in the matrix rather than in the fibres. However, these factors did not prevent the assessment and development of appropriate short fibre composite models to predict the strength and stiffness of chipboard. 相似文献
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湖北省低丘项目研究协作组 《湖北林业科技》1996,(3):1-6
该文应用改进的AHP方法对低丘林农复合经营模式进行初步评价,结果显示──“楠竹+杉+豆类”模式综合效益最佳,其次为“楠竹+豆类”、“茶叶+松+豆类”、“板栗+枸桔”等;林农间作是提高低丘综合效益的有效措施;根据模式排序结果和湖北省长江中下游各区域的气候、土壤条件对各区域最佳、次佳、一般林农复合经营模式进行了初步规划。 相似文献