查询词典 vegetation

During the process of deriving percent vegetation cover using "Nondense Vegetation Model", Leaf Area Index is a necessary parameters, an improved method for deriving LAI from visible and near infrared measurements above a soil background is proposed.

在用"非密度模型"反演植被覆盖度的过程中，叶面积指数是一个必要的参数，本文提出了一种改进的借助可见光波段和近红外波段反射值来提取叶面积指数的方法。

To achieve 2 to 3 Mu basic farmland per person in the whole county as early as possible; to adjust the traditional crop production structure; to improve the organization system of agriculture technology popularization, to popularize quality and high yield planting techniques, promote the quality and yield per unit area, achieve food self-sufficiency and ensure food security.3 According to the zone characteristics of vegetation and the sub-divisions of climate and vegetation in Ansai County, we must rationally allocate forest, orchard and grass in different land.

全县尽快实现人均2～3亩基本农田：调整种植业结构；健全农业技术推广组织体系，综合推广优质高产栽培技术，提高单位面积作物质量与产量，基本实现粮食自给，保证粮食安全。3根据植被地带性特征和安塞气候、植被分区，合理配置安塞生态林草和经济林果。

The spectral characteristics of the vegetation canopy, including four dominant vegetation types, Leucaena leucocephala, Vitex negundo, Acacia confuse and Pandanus odoratissimus, were measured from November 2006 to October 2007 using a ground handheld spectroradiometer in the Kenting National Park of Taiwan.

本研究以垦丁国家公园为研究区，调查期间为200611月至200710月，用地面手持光谱仪，测植群冠层之光谱特徵，包含区域内之银合欢、黄荆、相思树与投等4种优势植群。

This study provided a new research way and predictive framework for interpreting the complex climate and vegetation of Taiwan, and raised some remedial suggestions. The climatic grid layers, plot-data transforming program, physiognomic classification scheme of vegetation, ecoclimatic indices, moisture-thermal distribution of plants, and PNV map resulted from this study could facilitate further the managements and researches of the natural resources.

本研究为了解台湾气候及植群类型之空间分布提供一种新的研究途径与预测架构，同时检讨研究限制并提出改善建议，研究过程所得之气象资料检定程序、气候网格图层、样区资料整合程序、植群形相分类方案、生态气候指标、树种水热境制、PNV图层等成果也有助於自然资源之经营管理与科学研究。

Phytogeography which study flora geography and vegetation geography research the relation between the plant distribution and space and time. It has great meaning for studying plant distribution , flora evolve , protection and utilization of plant resources, vegetation evolve etc..

植物地理学研究植物区系地理和植被地理即植物分布与空间及时间的关系，对于研究植物的分布、区系演化、植物资源保护和利用、植被演替等均有重大的意义。

The introduction of polarimetry to SAR interferometry makes it possible to improve the interferometric measurement resolution of the under-vegetation terrain and to estimate the height of vegetation targets.

中文摘要：极化SAR干涉测量将极化测量技术和干涉测量技术巧妙地结合，能够提高干涉测量精度，尤其是在植被覆盖的情况下，不仅能够测量地表地形，而且使得估计植被高度成为可能。

On the basis of pollen analysis of surface sample in North China, polynomial function analysis method was applied to establish pollen climate response surface of Pinus, Betula, Quercus, Artemisia, Chenopodiaceae, Compositae, Picea, Ephedra, Gramineae in North China, therefore an easy and applicable method for reconstructing palaeoclimate and palaeoenvironment with data of fossil pollen was founded; Multi-analysis method was applied to analyse the principal elements of surface sample pollen in central Inner Mongolia Steppe, the assemblages of surface sample pollen in steppe area and its relationship with vegetation type were discussed with helps from spore-pollen analysis of a peat section in Chasuqi, Inner Mongolia and 〓C chronometer, fossil pollen data were obtained with high resolution on the peat section in Chasuqi. Vegetation succession and environmental changes since Holocene at resolution of 70 years were primarily reconstructed in south Mount Daqingshan and Plain Tumete. The changes in the area were copmared with those in the neighbouring areas during the same period. It was found that Holocene environmental change had undergone the following stages: cold-arid, temperate-wet, warm-wet, temperate-arid and cold-arid, and the climatical optimum period occurred in 5000-4100 aB.

本文在对中国北方表土花粉研究的基础上，采用多项式函数回归方法建造了中国北方松属、桦属、栎属、蒿属、藜科、菊科、云杉属、麻黄属、禾本科等的花粉——气候趋势面，从而为利用化石花粉资料直接恢复古气候、古环境提供了一种方便易行的方法；采用多元分析方法对内蒙古中部草原区表土花粉进行了主成分分析，探讨了草原区表土花粉组合的规律及与植被类型的关系；本文还应用孢粉分析方法，结合〓C测年技术，通过内蒙古中部察素齐泥炭剖面高分辨率的化石花粉数据，初步恢复了大青山山地南部及土默特平原地区分辨率为70年的全新世以来植被演替和环境变迁的状况，并与邻近地区的全新世古气候、古环境进行了对比研究，研究发现，本区域全新世古环境的变迁序列基本上可以与周围地区及华北地区进行对比，其环境变迁经历了凉干～温湿～暖湿～温干～凉干的变化，且气候最适宜期出现在5000～4100aB.P。

Haba Lake tourism area through the natural growth of vegetation, artificial afforestation and closed forest, plant a wide range of dense forest vegetation, microclimate clear that the formation of a good ecological environment, to clean the air, reducing soil erosion, the county seat of Yanchi with ecological barrier, Love of the Mountains in beautiful scenic area, sand hills, golden, fresh air, the negative particle concentration is high, forest bath, light bath, sand treatment of the ideal, and therefore known as the "Desert Oasis","natural oxygen bar."

哈巴湖旅游区植被经过天然生长，人工造林和封山育林，植物种类繁多，森林植被茂密，小气候明显，形成了良好的生态环境，净化了空气，减少了水土流失，对盐池县城具有生态屏障的作用，景区内山恋锦绣，沙山金色，空气清新、负粒子含量高，是进行森林浴、光浴、沙疗的理想之地，因而被誉为"沙漠绿洲"、"天然氧吧"。

Remote sensing technology can be used to timely monitor the distribution and growth status of submersed vegetation on a large scale, but the suspended matter in water bodies may affect the spectral characters of submersed vegetation, resulting in an inaccuracy of the interpretation of related remote sensing images.

应用遥感技术可以实时、大面积监测沉水植物的分布和生长情况，而水体中的悬浮物等物质影响沉水植物的光谱特征，直接影响对湖泊、河流遥感影像中沉水植物的准确解译。

As one of the achievements of this study, the information management system of vegetation quantity of Syringa oblata for Harbin can help to quickly and accurately estimate the total amount of vegetation quantity of Syringa oblata in Harbin or a certain area.

作为本项研究的成果之一，哈尔滨市紫丁香"绿量"信息管理系统在具体测算哈尔滨市或某一地区的紫丁香"绿量"的总量上具有快捷准确的特点。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐