soil classification 中文意思是什麼

soil classification 解釋
土壤分類
  • soil : n 1 泥土，土壤；土質。2 土地，國土。3 滋生地，溫床。4 農業生活，務農。n 1 臟東西，污物，污穢，污...
  • classification : n 1 選別；分等，分級；分選。2 【動、植】分類（法）。 〈分類級別為： phylum 【動物；動物學】及 div...
  1. And understanding and studying the spectral features and variation rules of geo - targets in the experimental area, raising that it is the basis of geo - targets information collection with imaging spectrometer data to understand spectral features and variation rules of geo - targets, realizing that in a great extent spectral - integrated - form - based classification method can remove the phenomenon of " different spectrum with same objects " resulted from reflection ratio curve translation because of the angle change among sensor, targets and observation direction, and the average and variance images can be introduced to solve the problem of two kinds of geo - target with similar spectral forms and much different values of whole reflection ratio. it is suggested that " red edge " range bands of vegetation, which has close relationship with vegetation cover and biomass, is the main characteristic bands and important basis for careful vegetation classification and quantitative retrieval, and pixel - based derivative spectral analysis is very useful for removing the effects of soil background values and quantitatively retrieving vegetation biomass and cover. the remote sense quantitative retrieval model is developed for main appraisable factors of desertification monitoring assessment with imaging spectrometer data and then the applicability of model is analyzed

    研究結果如下：首先針對荒漠化地區的地物特徵，對高光譜數據不同波段的數據質量、波段組合進行了評價，提出了適用於荒漠化監測的基本波段選擇集；初步了解和掌握了研究地區的地物光譜特性及變異規律，進一步明確了掌握地物光譜特徵和變異規律是用成像光譜儀數據提取地物信息的基礎；發現了基於光譜整體形狀的分類方法在很大程度上能夠消除由於傳感器、地物目標觀測方向之間的角度變化引起的反射率曲線整體平移的「同物異譜」現象，對于譜形相似而整體反射率的值相差較大的兩類地物，通過引入均值和方差圖像參與分類得到解決；研究還表明在植被「紅邊」范圍內的波段是進行荒漠化監測的主要特徵波段，這些波段與植被生物量和蓋度都有密切的關系，是開展精細植被分類研究和植被定量反演的重要基礎；像元的導數光譜分析可以消除土壤背景的影響，是進行植被生物量和蓋度定量反演的有力工具；建立了荒漠化監測主要評價因子的定量反演模型，並分析了模型的適用性。
  2. Seasonal frost heaving classification of the highway subbase soil

    季節性凍脹與路基穩定評析
  3. Standards for classification and gradation of soil erosion

    土壤侵蝕分類分級標準
  4. 1. 4 based on the attribute db, the soil classification graphic db is set up by using arc / info cis. the soil order, suborder sketchs and basic classification unit ( series ) sample maps, make the distribution of soil in hubei province clear at a glance

    4在屬性數據庫的基礎上，利用arc infogis建立了湖北省土壤分類圖形數據庫（空間數據庫） ，運用計算機編制和輸出了全省土壤系統分類土綱、亞綱概圖和基層分類單元（土系）樣塊圖，使全省土壤分佈狀況一目了然。
  5. Referencing between the genetic soil classification of china ( gscc ) and the chinese soil taxonomy ( cst ) for gscc - high - mountain - soils was conducted and their quantitative and spatial distribution characteristics within cst were studied, based on the 1 : 1m soil database of china, which consists of 3 parts, 1 : 1m digital soil map, soils profiles attribution database and soil reference system of china

    摘要本文利用最新建立的1 : 100萬中國土壤數據庫，研究了我國發生分類高山土與中國土壤系統分類的參比及其在系統分類下的空間分佈和數量特徵。
  6. Gscc - high - mountain - soils, typical soils with a total area of 197. 8 104km ^ 2, can be sorted into 4 cst orders, cambosols ( 50. 2 % ), aridosols ( 29. 8 % ), primosols ( 15. 1 % ) and isohumosols ( 4. 9 % ), and further into 11 cst groups and 19 cst subgroups, making referencing so complicated that there is no one - to - one referencing relationship, due to the fact that the 2 soil classification systems are absolutely different

    結果表明，我國發生分類高山土總面積為197 . 8萬平方公里，分佈規律明顯；高山土參比後分屬於4個系統分類土綱，雛形土、乾旱土、新成土、均腐土，它們分別?高山土總面積的50 . 2 % 、 29 . 8 % 、 15 . 1 % 、 4 . 9 % ，其中包含了系統分類的11個土類和19個亞類，參比關系復雜，不是簡單一對一的關系。
  7. From 1950s ， geographical - genetic classification theory originated from the former soviet union exerted its extreme impact on soil classification of china

    在地理發生分類體系中，按生物氣候氣候條件，熱帶、亞熱帶地帶性土壤分別為燥紅土、紅壤、黃壤、赤紅壤和磚紅壤。
  8. The comparability and otherness are coexist in the text of soil taxonomy with numerical analysis method, which indicates that soil taxonomy is a kind of more objective and more scientific method for soil classification, and the numerical analysis can be considered as the measure to test the soil taxonomy

    用數值分析方法檢驗系統分類相似性與差異性共存，表明系統分類是一種更客觀、更科學的分類方法，數值分析可作為檢驗系統分類結果的手段。
  9. Unified soil classification system

    土的統一分類系統
  10. Since 1980s ， the soil taxonomy based on by diagnostic horizons and characteristics of soils was introduced into chinese soil classification

    這一分類的特點是根據土壤診斷層和診斷特性劃分土壤類型。
  11. Nowdays, the international majority of soil classification is the soil taxonomy, which is based on the diagnostic horizon and diagnostic characteristics, and characterized by quantification. the tendency of soil classification in the world is quantification, standardization and intemationalization. the study of chinese soil taxonomy has achieved great phase outcome - chinese soil taxonomy

    當前，以診斷層和診斷特性為基礎、定量化為特點的土壤系統分類是國際土壤分類的主流，定量化、標準化和統一化已成為國際土壤分類發展的大趨勢，我國的土壤系統分類研究也取得了階段性成果? ?中國土壤系統分類。
  12. The traditional methods of describing soil properties are on the whole qualitatively soil classification, not researching soil spatial variability quantitatively

    傳統描述土壤空間異質性的方法基本上是定性地土壤分類，而不是定量地研究土壤空間變異。
  13. Significance of expansive soil classification indexes analysed by rough sets

    膨脹土路基的脹縮變形模型試驗
  14. In order to make cst more practical and easier to popularize, it is essential and urgent to keep on studying and developing cst at lower unit level to establish basic soil classification units of cst

    發生分類到系統分類的參比關系復雜，參比難度大，原因在於它們的分類體系和劃分標準是完全不同的。
  15. Eng. ) we teach soil definition, soil classification, soil architecture and physical properties, soil aeration and temperature, soil colloids, soil acid, alkalinity and salinity, soil organisms, soil organic matter, nitrogen and sulfur economy of soils, soil phosphorus, potassium and micronutrients, practical nutrient management

    中）主要講述土壤的基本定義，土壤的化育、生成與分類，土壤的物理、化學與生物特性，土壤的通氣與溫度，土壤膠體特性，土壤的酸性、堿性和鹽性，土壤中的元素，土壤管理等。
  16. Standard classification of soils for engineering purposes unified soil classification system

    施工用土壤的標準分類
  17. After reviewing the national and international developments on remote sensing monitoring soil, influenced factor of soil reflectance values, soil spectra curve, best detecting band of soil and soil classification using remote sensing are simply summarized

    摘要對土壤光譜遙感監測的國內外發展情況進行了回顧，簡單總結了影響土壤光譜的原因、土壤光譜的類型、土壤遙感的最佳波段、土壤的遙感分類以及土壤遙感的定量研究。
  18. Introduction to the new russia soil classification system

    俄羅斯新土壤分類的研究現狀和特點
  19. 3 the descriptive information in this practice may be used with other soil classification systems or for materials other than naturally occurring soils

    3這個標準中描述的信息可以用於其他的土分類系統或者其他不同語自然情況下土的材料
  20. Soil geochemical characteristics from chengdu economic zone and implications for soil classification

    成都經濟區淺層土壤地球化學特徵的土壤分類學意義
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