查询词典 sapling forest

By combining a case analysis and experiences and lessons from the fire prevention work, the author put forward the development direction and the key improvement of forest fire prevention technology as follows: keep on the studies on weather and situation of forest fire and the short-term, medium-term and long-term fire forecasting, establishing the countrywide forest fire forecasting system step by step, enhancing the biologic fire prevention construction based on forest- prevention web and system, improving the ability of the initial fire obstruction, expanding the forest fire plan, strengthening the management of combustible substances, completing the national satellite network for forest-fire monitoring as soon as possible, speeding up the construction of computer assistance decision system, GIS forest resources geography information system and the GPS world fixed position system, strengthening the fire prevention communication and the extinguishing fire with aviation airplane and chemistry, implementing the modernization of fire machine tool.

结合实例分析及我国森林防火工作的经验和教训，提出了未来我国森林防火技术的发展方向和改进重点：继续努力开展火险天气、火险形势的科学研究和短期、中长期火险预测预报工作，逐步建立全国林火预报系统；加强以防火林带网络和体系建设为主的生物防火建设，提高对初发火的阻隔能力；推广计划火烧，加强可燃物管理；尽快完成全国卫星林火监测网络建设；加快微机辅助决策系统、GIS森林资源地理信息系统和GPS全球定位系统建设的步伐；加强防火通讯；加强航空飞机灭火和化学灭火的力度；实现扑火机具现代化等。

Among the species we measured, the maximum water holding specie is Abelia chinensis, and the minimum is Cudrania tricuspidata, and the water holding capacity of Abelia chinensis is three times as Cudrania tricuspidata. The shrub and herbage amount of six forest types is Shrubbery and grass land, Pinus massoniana forest, Mixed conifer forest, Conifer and broadleaf forest, Broadleaf forest and Cupressus funebris forest in order. And the water holding amount of shrub and herbage have positive relative with their amounts.

6种森林类型林下凋落物存储量从大到小依次是柏木林、针阔混交林、阔叶林、针叶混交林、灌草地和马尾松林；各种森林类型的凋落物都以半分解层为主，凋落物的组成以叶子为主枝条为辅，并杂有一些果实、树皮及芽鳞等；凋落物持水量从大到小依次是阔叶林、柏木林、针阔混交林、针叶混交林、灌木林和马尾松林，主要原因是除了受凋落物数量的影响外，还受凋落物成分的影响。

The Farming-pastoral Zone in North China was separated into 8 Eco-regions according to the known Eco-region. The dissertation analyzed the regional differences of land use changes from three aspects on dynamic degree , land use degree and the change direction (1)On land use dynamic degree, the dynamic degree of the cropland was the highest in North warm temperate deciduous broad-leaved forest and the lowest in temperate forest steppe; forest land's was the highest in alpine meadow and the lowest in warm temperate forest steppe; grassland's was the highest in temperate forest steppe-bunchgrass steppe and the lowest in alpine meadow; other land's was the highest in North warm temperate deciduous broad-leaved forest－the Huang-Huai-hai plain and the lowest in warm temperate bunchgrass steppe.

结合已有的自然生态区的划分，将我国北方农牧交错带划分为8 个自然生态区，选取土地利用动态度、土地利用程度以及土地利用变化方向等3 个方面的指标对研究区进行了区域分异规律的研究，结果如下：（1）耕地动态度北暖温带落叶阔叶林生态区——北部山地丘陵区最大，温带森林草原生态区最小；林地的动态度高寒草甸生态区最大，暖温带森林草原丛生禾草草原生态区——东南森林草原区最小；草地动态度温带森林草原——丛生禾草草原生态区最大，高寒草甸生态区最小；其他用地的动态度北暖温带落叶阔叶林生态区——黄淮海平原区最大，暖温带森林草原丛生禾草草原生态区—西北丛生禾草草原区最小。

From the high altitude to the low altitude, the forest type is the betula ermanii forest, the moss-betula ermanii dark-conifer forest, the dark-conifer forest, the moss-pinus koraiensis dark-conifer forest, and the Korean pine and broad-leaved climax forest.

长白山北坡主要原始森林生态系统由高海拔到低海拔分别为：岳桦林、苔藓岳桦暗针叶林、山地中部暗针叶林、苔藓红松暗针叶林、原始阔叶红松林。

The canopy interception will increase with the precipitation during at the beginning of rain, but it will keep stable later. The canopy interception quantity of six forest types is Mixed conifer forest, Pinus massoniana forest, Cupressus funebris forest, Conifer and broadleaf forest, Broadleaf forest and Shrubbery and grass land in order.There is much difference among the different species of the shrub and herbage.

林下灌草层不同的物种最大持水量有很大区别，在测定的物种中持水量最大的是糯米条，持水量最小的是柞木，糯米条的持水量接近柞木的3倍。6种森林类型林下灌草生物量从大到小依次是灌草地、马尾松林、针叶混交林、针阔混交林、阔叶林和柏木林；灌草层的持水量与其生物量具有密切关系，生物量多的持水量相应也多。

The results are as follows:The relationship between the precipitation and the stemflow is a linear regression. The stemflow of six forest types is Broadleaf forest, Conifer and broadleaf forest, Cupressus funebris forest, Mixed conifer forest, Pinus massoniana forest and Shrubbery and grass land in order.

结果如下：树干茎流量与降雨量成线性相关，回归方程达到极显著水平；6种森林类型的树干茎流量从大到小依次为阔叶林、针阔混交林、柏木林、针叶混交林、马尾松林和灌草地；不同树种间的树干茎流量差异极显著，影响树干茎流量的主要树体特征因子是冠型结构、胸径和平均冠幅。

The throughfall of six forest types is Shrubbery and grass land, Pinus massoniana forest, Cupressus funebris forest, Conifer and broadleaf forest, Broadleaf forest and Mixed conifer forest in order.The relationship between precipitation and the canopy interception is a power regression.

降雨初期，林冠截留量随着降雨量的增大而增大，但随着林冠吸水饱和，林冠截留量会逐渐趋于一个稳定范围。6种森林类型的林冠截留量从大到小依次为针叶混交林、马尾松林、柏木林、针阔混交林、阔叶林和灌草地。

Climate and soil factor of Catanopsis hystrix native forest in fifteen countries were surveyed, results showed that Distribution area of Castanopsis hystrix native forest in Gangxi belongs to south subtropical seasonal wind climate, and Castanopsis hystrix native forest in the forest mainly was representative types of south subtropical seasonal rain forest and ever - green broad - leaved forest in China.

通过调查统计广西15个红锥天然林县市的气候和土壤因子，结果表明广西红锥天然林分布的地区属南亚热带季风气候区，以红锥天然林为主的森林是我国南亚热带季雨林化常绿阔叶林的代表类型；红锥天然林分布以赤红壤、红壤林地出现较多，土壤酸碱度为微酸性（pH4.36～6.23）。

Consequently, to evaluate forest sustainability of a certain region becomes important in sustainable forestry and sustainable development. Forest carrying capacity is an important and key index in evaluating forest sustainability, premise of forest management and decision-making, and an essential component of the theories in sustainable forestry and forest management and forest ecosystem.

因此，如何评价一个确定区域的森林是否可持续便成为可持续林业、可持续发展研究中亟待解决的重要问题，而森林承载力是森林可持续性评价中的一个重要的关键的指标，是制定和实施区域可持续林业发展规划、战略的前提，是区域森林经营管理决策的依据，同时它也是可持续林业理论的重要组成部分，是森林经营管理理论和森林生态学中的一个全新内容。

The result indicates that the water, tundra, residential sites, needle-leaved forest and brass were decreased from 1977 to 1985; while the plantation and the coniferous and broad-leaved mixed forest obviously increased; and the broad- leaved forest, betula ermanil forest, road and bare soil also increased. During 1985 to 1999, the water, bare soil, coniferous and broad-leaved mixed forest, broad-leaved forest reduced, the rest landscape types increased in this area.

分析表明：从景观面积变化率来看，1977~1985年间，水体、苔原、居民点、针叶林和草地的面积减少，耕地和针阔混交林的面积增加显著，阔叶林、岳桦林、道路、裸地增加；1985~1999年间，水体、裸地、针阔混交林和阔叶林的面积减少，其他类型面积增加。

"The operators will suffer a temporary decrease in the number of consumers and short message services as people may not like having to provide their ID cards for a phone number," Xu Junqi, vice-dean with the Policy-Making Institute of the Telecommunications Research Centre under MII, said yesterday.

信息产业部下属的通信决策研究院副主任徐俊其昨天说：&实行手机实名制后，人们可能不太情愿用身份证注册手机号，所以通信运营商会暂时面临用户减少和短信用户减少的问题。&

I don't believe in make-believe!

我不相信这些虚构的故事。