Water engineering of agricultural lands - terms - part 3 : soil science , soil taxonomy , soil investigation 農(nóng)業(yè)水利工程.術(shù)語.第3部分:土壤學(xué)土壤分類學(xué)和土
Design of automatic soil identification and classification system from remote sensing data based on soil taxonomy 基于土壤系統(tǒng)分類的土壤遙感自動識別分類系統(tǒng)的設(shè)計
In chinese soil taxonomy the soils of the tropical and subtropical china could be grouped into ferrisols and ferralisols 據(jù)此,這一區(qū)域的地帶性土壤主要是富鐵土和鐵鋁土。
The main results are shown as follows : 1 . establishment and application of the database system of soil taxonomy for hubei province 1湖北省土壤系統(tǒng)分類數(shù)據(jù)庫系統(tǒng)的建立與應(yīng)用1
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(jù)土壤診斷層和診斷特性劃分土壤類型。
4 . the result of soil taxonomy consist fundamentally with that of the genetic classification and the boundaries roughly identify with each other , indicating the taxonomic classification is based on the genesis theory and the two classification system are touched tightly 土壤系統(tǒng)分類與地理發(fā)生分類的分類結(jié)果是基本吻合的,分布界線也大體一致,說明系統(tǒng)分類是以土壤發(fā)生學(xué)理論為基礎(chǔ)的,兩種分類體系有密切聯(lián)系。
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(shù)值分析方法檢驗系統(tǒng)分類相似性與差異性共存,表明系統(tǒng)分類是一種更客觀、更科學(xué)的分類方法,數(shù)值分析可作為檢驗系統(tǒng)分類結(jié)果的手段。
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(shù)據(jù)庫,研究了我國發(fā)生分類高山土與中國土壤系統(tǒng)分類的參比及其在系統(tǒng)分類下的空間分布和數(shù)量特徵。
3 ) indexs of soil series taxonomy and retrieval orders : a ) soil structure : the classification was based on the soil profile and " b " horizon differentiation . b ) texture style . c ) organic substance : according to four levels 20 . 1 - 30 . 0 , 10 . 1 - 20 . 0 , 6 . 1 - 10 . 0 , < 6 . 0 ( g / kg ) 4 ) according to the standard of chinese soil taxonomy and this study , 17 soil swatches were divided into 14 soil series . among which , 9 belonged to cambic order , the order 7 belonged to entic order 土壤有機質(zhì)狀況:按照土壤有機質(zhì)分級指標(biāo),結(jié)合供試土壤有機質(zhì)狀況,按20 . 1 ? 30 . 0 、 10 . 1 ? 20 . 0 、 6 . 1 ? 10 . 0 、 6 . 0 ( g kg )四個級別劃分土系( 4 )按照系統(tǒng)分類統(tǒng)一標(biāo)準(zhǔn)及本研究建立的土系劃分指標(biāo)和檢索順序,對照供試土壤的理化性質(zhì)進行檢索, 17個供試土壤共劃分為14個土系,其中9個屬于雛形土綱, 5個屬于新成土綱。
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(dāng)前,以診斷層和診斷特性為基礎(chǔ)、定量化為特點的土壤系統(tǒng)分類是國際土壤分類的主流,定量化、標(biāo)準(zhǔn)化和統(tǒng)一化已成為國際土壤分類發(fā)展的大趨勢,我國的土壤系統(tǒng)分類研究也取得了階段性成果? ?中國土壤系統(tǒng)分類。