覆盖 1.(遮盖) cover; overlap 青松覆盖的山峦 hills covered with pinetrees; 地上覆盖着厚厚的积雪。 the ground was covered over with thick snow. 秧苗上面覆盖着塑料薄膜。 the rice seedlings were covered with plastic sheeting.2.(植被) plant cover; vegetation3.(保护层, 覆盖物) cover; covering; overjet; blanket; mulch; coverage 双叶覆盖 two-sheeted covering; 树木覆盖率 tree coverage
类型 type; mold; form; cut◇类型论 theory of types; 类型语句 [计算机] type statements
Override the type system in their own code 在自己的代码中覆盖类型系统。
Individual gantt bar formatting overrides category formatting 单独设置的甘特条形图格式将覆盖类型格式设置。
Wetland , located in the terrestrial - aquatic transverse zone , is an important landscape and ecosystem 摘要湿地在流域中处于水陆交错的特殊过渡区域,是地表重要的景观覆盖类型和生态系统。
Hierarchical image classification methodology aiming to obtain the maximum number of land cover classes through auto - classification procedures , 分级图像分类方法,目的在于通过自动分类程式获取最多的土地覆盖类型。
However there is a bad trend in pinggu county and mentougou district , despite the fraction of green vegetation in the two districts is high . the spatial pattern analysis can help to identify the vegetation coverage spatial distribution and structure stability ( 3 ) 1994 - 1999年期间,景观整体的破碎化水平降低,异质性程度下降,景观类型的空间分布向非均衡化方向发展,但不同的植被覆盖类型表现出不同的空间分布特征。
2 . the range of soil co2 concentration varied with soil temperature is not the same for the soil layer and its characters and different vegetation : the varied range of topsoil is higher than that of deep soil at testing woodland ; the varied range of soil layer ( - 20cm ) is the highest than that of the other soil layers ; the range of co2 concentration varied with air temperature begins to increase in turn from woodslay and shrublay to herbage 由于植被覆盖类型不一样和所处的层位以及本身性质,表层带岩溶生态系统各层的coz浓度随温度变化的幅度不一样,林地表层coz浓度变化的幅度比深部大,裸地土下e0 。 zcoz浓度变化的幅度比表层和底层大,林层、灌层和草层coz浓度变化的幅度依次变小。
The paper has made detailed observation by the existing apparatus and the field observation stations . based on the image and the vector database of the yutian oasis , the study has obtained the precise coordinates of investigation points by gps technique , and overlapped them with the images . after classifying the images with the maximum likelihood supervised classification method , we import the result into cis software , and analyze the yutian oasis changes about land cover " s quantity , quality and spatial position from 1976 to 2001 本文利用现有仪器设备和野外观测网站进行详细观测,在建立于田绿洲图像库和矢量数据库的基础上,运用gps技术取得野外考察样点的精确坐标并与研究区各时期影像叠加,对影像进行了最大似然法监督分类,并将分类结果转入gis软件处理,全面分析了1976年至2001年该绿洲的土地覆盖类型数量、质量与空间上的变化。
In the world , by promoting abundant scientific researches , we have made a great progress in its theoretical methods and technologies , such as lucc information processing and information acquiring , study on lucc driving system , etc . owing to having long history of land development and various types of land cover , the change of china ' s lucc is an important component part of global environmental changes 中国具有悠久的土地开发史,由于地域辽阔,自然条件差异大,使土地利用与土地覆盖类型多种多样,中国的lucc变化是全球环境变化的重要组成部分。因此,深入开展我国lucc变化研究,不仅对中国区域生态环境、社会经济发展有重要作用,对研究全球环境变化也具有重要意义。
Amtis and aster images were scaled up using pixel aggregation algorithm to find scaling error of surface flux estimation . the results show that the largest error appears at the interface of different coverage types , and the error show much complexity because of the discontinuity of algorithms at these boundaries . additionally , the contamination of building , highway and other ground information also add some error in the estimation of land surface e vapotranspiration 将amtis和aster图像降低分辨率后计算通量,检验其尺度误差,结果表明,在不同覆盖类型的交界处通量误差比较明显,由于算法本身的不连续性,其误差规律较为复杂,另外,道路、建筑等对通量计算无用的信息也是造成大像元尺度误差的原因之一。