溝壑形成 的英文怎麼說
中文拼音 [gōuhèxíngchéng]
溝壑形成
英文
ravinement-
The basic concept of terrain information content is proposed after an overall review of existing research achievement. applying a series of analysis and data processing method, like math - analysis, mathematical statistics, comparative, error visualizing, this paper carefully investigated the terrain information content characteristic of dems of 1 : 50000 map scale of loess plateau area
本文在對前人已有研究成果進行系統總結的基礎上，首先明確了dem地形信息容量的基本概念，並運用數學分析、數理統計、比較分析、誤差地圖等方法，以海拔高程與等高線為研究對象，以1 ： 1萬比例尺dem為參考真值，探討了黃土丘陵溝壑區1 ： 5萬dem的地形信息容量特徵。The pivilion is lying on the adamellite of craggedness with freely ravins. it ' s the best place to look at the sunrise
望海樓所在地主要巖性為24億年左右形成的二長花崗巖，山勢陡峭，溝壑縱橫，是蒙山觀日出的最佳之處。Applying the basic theories of spatial data mining and geomorphology, taking the loess plateau of north shaanxi province, china as the research area, this dissertation explored the theories and systematic structures of geomorphologic data mining and acknowledge discovery from dems, ascertained the systematic structures of topographic factors and synthetic topographic acknowledge, as well as systemically summarized mining algorithms from dems. the author pa id more attention also to analyze the principle and algorithm of flow length, curvature, relief, the earth ' s surface incision and gully density. in this research, the elementary constitutes and mining algorithms of regional character acknowledge in the loess plateau were probed
本研究在廣泛總結前人研究成果與研究經驗的基礎上，利用空間數據挖掘和地形地貌學的基本理論，以陜北黃土高原多地貌類型區為實驗樣區，以1 10000比例尺dem為樣本數據，探討了dem中地形地貌數據挖掘與知識發現的理論方法和體系結構；確定了宏觀和微觀地形因子、地形綜合特徵知識的體系結構；系統總結了dem基本地形因子的提取演算法，並重點對坡長、曲率、地形的起伏度、切割深度和溝壑密度因子提取的原理與演算法作了深入的分析；提出了黃土高原地區區域特徵知識的基本構成及其系統完整、科學可行的挖掘提取演算法；擴充了arcviewgis軟體平臺中dem空間分析的基本功能；實現了以delphi7 . 0為平臺的地形信息輔助挖掘系統的設計與開發；完成了對黃土高原多地貌類型區（樣區）地形信息空間分異特徵的分析。Article 22 in a water - eroded region, by taking a small river basin comprising the natural ravines and flanking hill slopes as a unit, a comprehensive system for the prevention and control of soil erosion shall be set up on the basis of overall planning and comprehensive rehabilitation
第二十二條在水力侵蝕地區，應當以天然溝壑及其兩側山坡地形成的小流域為單元，實行全面規劃，綜合治理，建立水土流失綜合防治體系。Due to its unfavorable geographical location and hilly landform, rainfall is the fundamental form for farming water supply
受地理位置和山地丘陵溝壑地形的限制，遠離冰川雪山，欠缺江河灌溉條件，降水成為農業基本水分來源。By the coding, all first - order rules needed to explore are mapped into the points in genetic space ; ( 2 ) the fitness function, which evaluates the quality of first - order rule. the variation of fir
（ 2 ）評判一階規則優劣的適應度函數，一階規則適應度的相應變化形成了遺傳空間高低起伏的地貌特徵； （ 3 ）由交叉和變異運算元決定的規則間的鄰接關系，描述了遺傳空間地貌的溝壑或橋梁。分享友人