高寒

词组短语

high and cold

与高寒相关的网络例句 [注：此内容来源于网络，仅供参考]

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。

The following conclusions have been made in this paper.(1) Based on CO_2 flux data of eddy covariance, variation characteristics of gross primary productivity in four flux observation stations were studied, which are an alpine meadow, an alpine shrub meadow, a swamp alpine meadow and a steppe alpine meadow at Dongxiong. The results show that photosynthetic capacity of the alpine meadow is the highest, and the annual total GPP is 652.2g C/m~2. Daily-differencing approach is used to analyze the random error of CO_2 fluxes measurements. The results show that the distribution of random error follows more closely follows a double-exponential, rather than a normal distribution, capturing the high peak and thick tail, and the random error varies with environment variables, which violates the assumptions for the ordinary least squares fitting with normality and homoscedasticity, consequently, we introduce maximum likelihood method for parameter optimization.

本文主要在以下几个方面开展工作并获得了一些认知和结论：(1)通过分析样带区域内高寒草甸、高寒灌丛、沼泽化湿地和草原化高寒草甸四个通量观测站点草地生态系统总初级生产力变化特征，研究结果表明HBBT矮嵩草草甸生态系统植被光合作用能力较强，年GPP总量为652.2 gC/m~2，明显高于其他三种生态系统；通过利用"单塔日变化法"获得四站点通量观测数据随机误差，结果表明通量观测随机误差概率分布呈现尖峰厚尾的特征，与正态分布相比，更服从双边指数分布，进一步分析表明通量观测随机误差随环境变量(风速、温度和光合有效辐射)的变化而变化，这违背了普通最小二乘法进行生态过程模型参数优化正态分布且误差同质的假设，因此本研究中引入最大似然法进行生态过程模型参数优化。

By using the method of comparative geography, the continuity and discontinuity between alpine meadow and its neighboring and alike landscapes have been studied in order to indicate that the alpine meadow zone is the transitional landscape from montane forest to alpine steppe and it can be regarded as a large altitudinal belt compared with the latitudinally distributed tundra on a global scale.

首先，用比较地理学的方法探讨了高寒草甸与其相邻和相似景观之间存在的连续性和间断性，说明地带性的高寒草甸景观是从山地森林景观向高寒草原景观的过渡；而在全球空间尺度范围内，作为"大垂直带"的高寒草甸，与纬向分布的极地苔原具有可比性。

The region in the altitude f rom 4400 to 4600 meters , which is mainly covered by alpine meadow and alpine swamp meadow , is st rongly degraded by the stock raising with it s influence radius of about 24 kilometers. The influence distance perpendicular to roads is also 24 kilometers , since road const ruction accelerates human2induced destruction to vegetation. Vegetation in shade aspect is rising due to the increase in precipitation , while vegetation in sunny aspect tends to be stable or degraded because of the enhancement in sunlight . Furthermore , the vegetation coverage is influenced by the groundwater level . In near riverbed fields , where the depth of groundwater is shallow , plant s can easily grow ; while in far riverbed fields , vegetation is prone to degrade due to drainage. The radius of river influence is 24 kilometers.

海拔4400～4600m的较低海拔地带退化最强烈，主要为高寒草甸与高寒沼泽草甸受牧业影响较大；牧业影响半径为24km；道路的影响范围为24km，道路的修建加速了人类对高原植被的破坏作用；阳坡植被呈现趋于稳定和退化的趋势，阴坡植被表现为增长的趋势，降水量增加是源区植被，尤其是阴坡植被变好的重要原因，而太阳光照增强是导致阳坡干旱和植被趋于退化的潜在原因；近河床区地下水位埋深较浅，植被生长具有稳定的地下水源；在远离河床的一定区域内，地下水易于疏干，植被易于退化，河流影响范围为24km。

Alpine meadow and wetland,closely correlated with the amount of water stock in the riverhead of China,is the most important ecosystem of the Qinghai-Tibetan Plateau.This ecosystem is the primary support for the industrial and agricultural and the living using water in the middle east of China,which makes the conservation of alpine meadow and wetland in the Qinghai-Tibetan Plateau have importantly practical significance.

高寒草甸及湿地是青藏高原上最为重要的生态系统，它的状况直接关系到我国江河源头的蓄水量，也关系到我国中部和东部广大地区的工农业及人民生活用水，因此对青藏高原高寒草甸与湿地的保护具有重要的现实意义。

Alpine meadow and wetland, closely correlated with the amount of water stock in the riverhead of China, is the most important ecosystem of the Qinghai-Tibetan Plateau. This ecosystem is the primary sup port for the industrial and agricultural and the living using water in the middle east of China, which makes the conservation of alpine meadow and wetland in the Qinghai-Tibetan Plateau have importantly practical significance.

高寒草甸及湿地是青藏高原上最为重要的生态系统，它的状况直接关系到我国江河源头的蓄水量，也关系到我国中部和东部广大地区的工农业及人民生活用水，因此对青藏高原高寒草甸与湿地的保护具有重要的现实意义。

This paper presents the composition structure of plant biodiversity in Maqu, a county of Gannan Tibetan Autonomy Prefecture and located at the northeastern edge of the Qinghai-Tibetan Plateau. which is he riverhead of the Yellow River. With the analytic hierarchy process, the reasons of deterioration and the measurers of restoration are given.

本研究对青藏高原东北缘黄河源头地区甘南藏族自治州的玛曲县高寒草甸及湿地进行调查，揭示了该地区的植被生物多样性情况与组成结构，利用解析层次方法分析了高寒草甸及湿地的退化原因及恢复手段，同时还从集合种群竞争原理出发对该地区植被生物多样性的维持机理进行了讨论。

There are some grass seeds recommended for ecological restoration , for example, Kentucky bluegrass, ryegrass, coronilla, festuca arundinacea, sword-bamboo and euonymus fortunei.3Regarding JBA,YQS, and CXL fertilizer as addition agent of the ecological material, magnetic fertilizer as ecological fertilizer, the material take on character such as water holding capacity, fertilizer retaining, prime cluster structure and binding power, which realize the destination of ecological protection of the abrupt rock slope.4Ecological material protection slope techniques, which is suitable for abrupt rock slope in high-cold area, has been formed elementarily.

高寒地区生态护坡的草种应选用具有抗寒、抗贫瘠和适宜粗放管理的冷季型草种，推荐使用的川西高寒地区生态护坡植物种属为：草地早熟禾、黑麦草、小冠花、高羊茅的草种组合，剑竹灌木种，以及小叶扶芳藤藤蔓植物种。(3)适当配比的高分子材料JBA、YQS和生态肥料CXL作为生态基材的添加剂可使基材具有保水、保肥、优质团粒化和粘结性能，从而达到生态护坡的目的。(4)开发了JYC生态护坡基材，初步形成了一套适合川西高寒地区岩质陡边坡生态基材防护的技术方法体系。来源：Ac9BC论文网www.abclunwen.com

Based on the field investigation in Aug 2001 and Aug 2002, digital China Vegetation Map in 2001 and Qinghai-Xizang Plateau Vegetation Regionalization Map in 1996, vegetation characteristic along two sides of Qinghai-Xizang highway and railway is studied in this article Meanwhile, the impacts of Qinghai-Xizang highway and railway constructions on the ecosystems are analyzed using ARCVIEW、ARC/INFO and PATCH ANALYSIS It was found that:(1) Qinghai-Xizang highway and railway span 9 altitudes,12 longitudes and 6 natural regions (East Qinghai and Qilian mountain steppe region, Chaidamu mountain desert region, South Qinghai alpine meadow steppe region, Qiangtang alpine steppe region, Guoluonaqu alpine scrub meadow region and South Xizang mountain shrub steppe region);(2) the constructions of Qinghai-Xizang highway and railway destroyed natural vegetation and landscape, especially in 50m-wide buffer regions along both sides of the roads, it was estimated that the Primary Productivity deceased by about 30504.62t/a and the gross biomass deceased by 432919.25～

：根据2001-08和2002-08月野外调查数据及2001年1∶100万中国植被图、1996年1∶400万青藏高原植被区划图和2000年青藏铁路沿线自然保护区分布及功能区界调整图，以青藏公路铁路沿线植被生态系统为研究对象，运用ARCVIEW和ARC/INFO软件研究青藏公路铁路建设对沿线生态系统结构的影响，结论如下：①青藏公路铁路南北跨越9个纬度，东西跨越12个经度，共穿越青东祁连山地草原地带、柴达木山地荒漠地带、青南高寒草甸草原地带、羌塘高寒草原地带、果洛那曲高寒灌丛草甸地带和藏南山地灌丛草原地带6个自然区，对植被类型的统计结果显示了地带性。②青藏公路铁路的建设对生态系统产生直接的切割，使景观更加破碎。

The spatial heterogeneity of soil water in alpine meadow, alpine shrub and desert grassland of alpine area in Eastern Qinghai-Tibet Plateau has been analyzed in different plot scales by applying Kriging and geo-statistical methods.

运用Kriging插值法和地统计分析，从多个样地尺度对青藏高原东缘高寒地区典型的高寒草甸、高寒灌丛及沙化草地进行了土壤水分的空间异质性分析。

与高寒相关的网络解释 [注：此内容来源于网络，仅供参考]

acclimation：适应

这部分工作将回答下列问题:理解高寒 针叶林建群种生理和生态过程对升高 二氧化碳和温度的响应机理并对 生理过程适应 (acclimation)参数值做出估计. 拟解决的 关键技术是如何定量其它限制源(如养分、植物库强度等)对实际参数值的干扰;

deciduous：落叶的

Consolidated 固结 | Deciduous 落叶的 | Frigid 高寒

alpine meadow：高寒草甸

高寒草甸(Alpine meadow)是指以寒冷中生多年生草本植物为优势而形成的植物群落,主要分布在林线以上、高山冰雪带以下的高山带草地,耐寒的多年生植物形成了一类特殊的植被类型.

alpine pasture：高寒草地

草地培育:pasture cultivation | 高寒草地:Alpine Pasture | 天然草地:Natural Pasture

Polygonum viviparum：珠芽蓼

1.不同退化程度高寒草地植物群落特征由于长期持续放牧干扰,高寒草地出现不同程度的退化,植物群落优势种嵩草(Kobresia spp.)、珠芽蓼(Polygonum viviparum)等逐渐被棘豆(Oxytropis spp.)、马先蒿(Pedicularis spp.)、龙胆(Gentiana spp.)等毒杂草代替,

Puna：高寒气候;冷高原

pumps in series 串联泵组 | puna 高寒气候;冷高原 | punch card machine 卡片穿孔机

subalpine meadow：亚高寒草甸

salinized meadow 盐生草甸 | Subalpine meadow 亚高寒草甸 | eurasian steppe region 欧亚草原区

tree line：樹線

世界各国高山地区, 包括北美落基山脉的树线(Tree Line)一直在上升. 树线上升已归因于全球气候变暖和火灾. 森林侵占到高寒区的后果之一就是高寒草甸变得支离破碎. 在过去的50年中,加拿大艾伯塔省落基山脉Jumpingpound山脊上树线的上升导致高寒草甸面积减少,

Isoetes hypsophila：水韭科 高寒水韭

水韭科 台湾水韭 Isoetes taiwanensis 1 | 水韭科 高寒水韭 Isoetes hypsophila 1 | 水蕨科 水蕨 Ceratopteris thalictroides 2

Oxytropis poncinsii：高寒棘豆

刚毛柽柳 Tamarix hispida Willd. | 高寒棘豆 Oxytropis Poncinsii | 高山点地梅 Androsace gmelinii