查询词典 protective forest

In this paper, the marshland of Daxinganling forest region is classified into three kinds, the pass performance of three kings of crawler fire engine, J-50, A531, BFC804 and a kind of two-wheeled forest fire engine of special light-duty HS-8 is studied in theory and test, the calculation formulas of the tangential traction force and the external motion resistance of vehicle are given and the drawbar pull is used as evaluation index.

对大兴安岭林区的沼泽地进行了分类，并对3种履带式森林消防车J-50、A531、BFC804和一种特轻型双轮森林消防车HS-8的沼泽地通过性作了理论与试验研究，给出了切线牵引力和行驶阻力的计算公式，采用挂钩牵引力作通过性评价指标。结果表明，BFC804可以通过重沼泽地，A531和HS-8可以通过中沼泽地，而J-50只能通过轻沼泽地。

Types during 10 years within Baihe forest bur eau, the dynamics of forest resource weremonitored long and effectively.

准确反映了该局不同林分类型的10 年间森林生长动态信息，森林资源动态得到了长期有效

Forest landscape is the main part of a forest park, and is the base of ecotourism development.

摘 要：森林景观是森林公园的主体，是森林公园开展生态旅游的物质基础。

The forest heat balance is a very important content in forest energy system.

森林热量平衡是森林能量平衡的重要内容。

International forest canopy networks have been established worldwide. To understand the relationship among community characteristics, environmental factors and epiphyte dynamics, and develop effective and standard methods and technologies for the study of forest canopies, more work is needed in this field.

由于世界各地森林类型多样和环境条件各异，目前国际上有关附生物的研究仍十分活跃，建立了林冠研究网络，研究不同类型森林中附生植物及其枯死残留物的动态及其与群落特征、环境因子的数量关系，探讨、交流和发展有效的标准测量方法和技术是该领域研究的主要内容。

They are 1 Cold-Temperate Mountain Hard-leaf Evergreen Oak Forest and 2 Temperate Needle and Broad Leaf Mixed Forest.

应该重点保护的植被类型是：寒温山地硬叶常绿栎类林、温凉性针阔叶混交林。

Cold-Temperate Mountain Hard-leaf Evergreen Oak Forest is less than the Pine Forest, which usually occurs on east-faced slope above 3000m.

寒温山地硬叶常绿栎类林在拉市海流域面积仅次于云南松林，多出现于海拔3000米以上东向山坡。

To keep abreast with current and new rules and legislations and incorporate them into the company's forest management policies in the course of our forest plantation expansion program.

确保经营管理体系与公司现行的营林活动和规模相适应，并不断得到补充和完善，以适应新的形势和政策法规的要求。

The forest has external economy, need adopts proper measure to solve exterior sex problem of the forest.

森林具有外部经济性，需要采取适当的措施解决森林的外部性问题。

In this research, the effort is first given to analyzing and exploring the concept, connotation and character of non-commercial forest, and four characteristics of non-commercial forest are pointed out as follows: public goods, exteriority, no market price and market value and society capital.

本研究首先从理论上分析和探讨了公益林的概念、内涵和特征；研究了公益林生态系统的价值构成；探讨了国内外评估森林多种价值的方法体系。研究指出公益林具有以下四大特征，即公共物品特征、外部性特征、没有市场价格和市场价值、属于社会资本。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。