1) factors of terrain and geography
地形、地理因子
2) terrain factors
地形因子
1.
The process of extracting channels and valleys is transfered to the process of determining the physiognomy type according to terrain factors.
提出将提取沟谷的过程转化为根据地形因子综合判定地貌类型的思路。
2.
And based on it,terrain factors,needed for site condition in afforestation decision support system(ADSS),were automatically calculated by computer.
该文针对造林规划设计过程中需要用到的地形因子,基于组件式GIS二次开发的原理,运用ESRI公司的嵌入式组件开发工具MapObjects,讨论了规则数字网格高程模型与规则数字网点高程模型的建立过程,在此基础上对造林决策支持系统中立地类型划分、林种规划等所依赖的地形信息进行自动提取,并以小班坡向为例进行分析,提出了造林小班地形特征信息提取的最佳方法———基于统计分布理论的最大特征值法,从而有效地实现了地形信息的自动提取,为造林规划设计服务。
3.
In forest management,the traditional method is observing terrain factors on the spot,this is an onerous task and can not accurately survey factors of large region In recently,automatic extracting terrain factors by digital elevation model(DEM)become a new trend going along with the development of information technology,this paper introduces the application of DEM in forest managemen
在森林资源调查中 ,传统的方法是作业员在野外实地观测或估计坡度、坡向、坡位及勾绘谷脊线等地形因子 ,这种方法 ,野外工作繁重 ,无法快速、科学、准确地调查大区域的地形因子。
3) topographic factor
地形因子
1.
The Influence of the Topographic Factor in Fang Xian Area on Water Losses and Soil Erosion;
房县地区地形因子对水土流失的影响
2.
Study on the remote sensing classification of grasslands based on the topographic factors;
基于地形因子的草地遥感分类方法的研究
3.
The relationship between soil erosion and topography is studied in this paper by using experimental runoff plot of Anhui province,from which a formula of topographic factor is obtained for this area.
地形是影响山坡地土壤侵蚀的重要因素,文章通过水保站径流小区的观测试验,分析研究了坡地侵蚀与山坡的坡长和坡度之间的定量关系,在此基础上综合得出适用于安徽省山坡地土壤侵蚀计算的地形因子公式。
4) topographic factors
地形因子
1.
A Research on 1:50000 Regional Soil and Water Loss Topographic Factors Based on DEM;
基于DEM的1：50000区域尺度水土流失地形因子研究
2.
This paper aims at exploring the effect of topographic factors on the spatial distribution of soil water in a small catchment on Loess Plateau using the thin pl.
以黄土丘陵区纸坊沟小流域为研究区,以DEM为基础,通过采集土壤水分样本,利用薄板光滑样条函数插值方法,对各地形因子对土壤水分空间变异性的影响与趋势进行研究。
3.
The author discusses the algorithm and the flowchart of topographic factors based on digital elevation model(DEM) when universal soil loss equation is used on regional scale.
论述了通用土壤流失方程在区域尺度应用时,基于数字高程模型计算其地形因子的算法及其流程,并在ArcGIS的GRID平台上开发实现。
5) topographical factors
地形因子
1.
Correlations between vegetation distribution and topographical factors in the northwest of Longmen Mountain,Sichuan Province.;
四川龙门山西北部植被分布与地形因子的相关性
2.
Using Geostatistic and the technology of GIS to study the spatial variability of soil nutrients in the hilly area,and to discuss how topographical factors can impact the spatial distribution of soil nutrients.
运用地统计学和GIS技术,研究丘陵地区土壤养分的空间变异性,探讨地形因子对土壤养分含量空间分布的影响。
3.
In order to choose the appropriate topographical factors for evaluating soil and water loss in valley scale, this paper discussed the correlations between topographical factors and soil & water loss in hilly and gully area of Loess Plateau in northern Shaanxi.
针对陕北黄土丘陵沟壑区11个水文站点的6,7,8,9月平均径流量、含沙量和侵蚀模数的数据,选择沟壑密度、地形起伏度、粗糙度等12个地形因子,进行了地形因子与水土流失的相关性分析,结果表明不同地形因子与水土流失的相关性不同,而且不同月份之间相关程度也不一致。
6) terrain factor
地形因子
1.
Impact of terrain factors on soil moisture in slopes of western Shanxi Province in loess area;
晋西黄土区坡面尺度地形因子对土壤水分状况的影响
2.
Taking Fang County in Hubei Province as a test area and by the support of the grid module of ARC/INFO geographic imformation system, the terrain factor in soil erosion was analysed from the 1∶25 DEM which was expressed by grid.
以湖北房县为例,在ARC/INFO的栅格模块支持下,利用1∶25万的栅格数字高程模型(DEM)数据,对水土流失中地形因子进行了分析,从中提取了坡度、坡向、坡形等地形因子图,完成了水土流失地形因子的数据库及其制图;在此基础上结合水土流失其它几个因子影响特征,初步估算了房县水土流失量。
3.
This paper focuses mainly on the correlation between different terrain factors and the mean-slope by means of the Back Propagation model of Neural Network with a latent layer.
不同地形因子虽然在语义概念、计算方法等方面均有明显的差异,但各地形因子之间并不是绝对孤立的,它们之间相互关联、相互影响。
补充资料：地理因子
又称地理基质。构成地理环境整体的各个独立的、性质不同的、但应服从整体演化规律的基本物质组分和能量组分。具有以下基本特点：①独立性。各种地理因子只能互相作用，互相影响，互相调节，而不可代替或极小代替；②最小限制性。在构成地理环境的总体质量中，对贡献最小的那个因子，具有限制作用；③等值性。任何一个地理因子，在规模或数量上尽管不相同，但在对地理质量施加限制的作用上，并无本质差异；④组织性。地理因子单独存在所具有的功能，小于各种地理因子组织起来所表现出的整体功能；⑤形成上的非同时性。各种地理因子虽非同时出现，但具有互相联系、互相依赖的特点。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条