查询词典 rain forest

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 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。

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 four models were analyzed and normalized. We studied the procedure and method of building forest fire model base. Model base was build by object-oriented method based on category of model. Forest fire spreading models algorithm were implemented. We designed model dictionary base, model file base, and model knowledge base. Model base administration and maintenance functions were developed and implemented model file management, parameter management and knowledge management. The problems of interface between of model base and database were solved by means of model data control files. Model base ensured the availability of supporting for forest fire model suitability selection technology and forest fire model self-adapting updating technology.(3) Based on BP artificial neural network, we designed a frame construction of forest fire model selection of suitability. Forest fire model selection knowledge was produced through BP artificial neural network.

2建立了林火模型库建设的林火蔓延模型评价标准，根据模型评价标准和试验区实际情况，在42个林火蔓延模型中选择了目前最具有影响力和最具有典型代表性的Rothermel模型、王正非模型、加拿大模型和澳大利亚模型进行了解析和归一化处理；对林火模型库的建库过程和方法进行了研究，在林火模型分类基础上，采用面向对象的模型库表示方法建立了林火模型库；实现了林火蔓延模型算法，设计了模型字典库、模型文件库和模型知识库；开发了模型库管理与维护功能，实现了模型的文件管理、参数管理和知识管理；通过模型数据管理文件解决了模型库与数据库之间接口问题；实现了林火模型库对林火模型适宜性选择和林火模型自适应修正技术的有效支持。

The results showed that 9 natural vegetation types were distributed in 6 gradients. Except gradientⅠ, the dominant vegetation types along other gradients were all monsoon evergreen broadleaved forest. Gradient had greater effects on the distribution of seasonal rainforest and temperate coniferous forest, had some effects on the distribution of mountain rainforest, deciduous monsoon threat and river valley savanna forest, had smaller effects on monsoon evergreen broadleaved forest had no effect on warm-hot savanna forest and tropical bamboo forest.

结果表明：9个自然植被类型在6个坡度级均有分布；6个坡度级中除Ⅰ坡度级优势类型是水域外其他坡度级的优势植被类型均是季风常绿阔叶林；坡度对季节雨林和暖温性针叶林的分布影响较大，对山地雨林、落叶季雨林和河谷稀树灌木草丛的分布有一定影响，对季风常绿阔叶林和暖热性稀树灌木草丛的分布影响较小，对暖热性针叶林和热性竹林的分布无影响。

The Value of Ci of leaf in Rain cultivation is less than in Open-air cultivation.The content of chlorophyl a and b of Rosario Bianco leaf in Rain cultivation is higher than in Open-air cultivation and the chlorophyl content of the 5th leaf is maximal in Rain cultivation. Stem diameter of Rosario Bianco were increased 8.68%~10.74% during the stage of rain growth in Rain cultivation. The study shows the leaf area of Rosario Bianco in greenhouse is lager than unsheltered and the environment of greenhouse is suit for grape leaf growing.

避雨棚对葡萄叶片的胞间二氧化碳浓度有抑制作用；避雨棚对'白罗莎里奥'叶片叶绿素a和叶绿素b含量的影响显著：避雨栽培条件0000下叶片的叶绿素均高于露天栽培，叶位5的叶片叶绿素含量最高；避雨栽培模式较露天栽培在避雨阶段葡萄茎粗增加了8.68%~10.74%且避雨栽培可显著增加葡萄叶面积。

Integrated analysis of 7 times heavy rain in Yunnan from July 19 to August 2 based on actual observation weather datum and satellite cloud atlas and Doppler radar image. The results show that: high-low southwest jet stream is important effect system. The maintenance of southwest jet stream provides water vapor, momentum, fast transfer of unstable energy for the lasting heavy rain. The further configuration of plateau shear line and southwest jet stream is necessarily condition about 7 times heavy rain. The lasting heavy rain appeared on big value region of 500hPa vapour flux and vapour flux divergence. The shear cloud band and subtropical high cloud band crossed and confluenced in Yunnan on the satellite cloud atlas. The maintenance and intensification of shear cloud hand and periphery cloud band of subtropical high correspond quite well to heavy rain falling region and cloud band distribution.

应用实测气象资料，结合卫星云图与多普勒雷达图像分析，对2007年7月19日到8月2日云南少有的7次强降水过程进行综合分析，结果表明：高低空的西南急流是重要的影响系统，西南急流的维持为持续性强降水过程提供了水汽、动量和不稳定能量的快速传递，高原切变线与西南急流的有利配置，是7次持续性强降水过程必不可少的条件；持续性强降水出现在500hPa水汽通量大值区和水汽通量散度辐合区；卫星云图上切变云带和副高外围云带在云南汇合，切变云带和副高外围云带维持、加强的过程与强降水落区的时空分布对应较好。

This immediately brings us to the next part of this article: creating an output "replace function".

下面进入文章的第二部分：建立一个"缓存处理函数"。

He was elected as an International Ornithological Committee member in 2002 during the 24th IOC held in Beijing.

现为中国鸟类学会理事和WPA 专家组成员。2002年被推选为国际鸟类委员会委员。