發(fā)布時間：2018-03-10 19:01

  本文選題：空間插值　切入點：決策樹分類法　出處：《草業(yè)學(xué)報》2017年10期 　論文類型：期刊論文

【摘要】：在遙感和地理信息系統(tǒng)技術(shù)支持下,我國草地類型學(xué)研究有新的進展。本研究在伊犁地區(qū)草地群落高度、蓋度、地上生物量、地下生物量、草地表層土壤容重、土壤全碳、土壤有機碳、土壤全氮、土壤全磷等空間分布數(shù)據(jù)的基礎(chǔ)上,通過對不同草地類型不同指標(biāo)的特征值分析,研究確定各草地類型不同指標(biāo)的閥值范圍,采用決策樹分類法,實現(xiàn)新疆伊犁地區(qū)草地類型自動判別。研究結(jié)果表明,利用伊犁地區(qū)不同草地類型在群落高度、蓋度、地上生物量、地下生物量、草地表層土壤容重、土壤全碳、土壤有機碳、土壤全氮、土壤全磷9個指標(biāo)的特征值作為草地類型劃分的依據(jù),可以簡單直觀地反映各類草地的空間分布面積和分布范圍,與20世紀(jì)80年代草地調(diào)查數(shù)據(jù)比較,分布趨勢一致,結(jié)果可靠。同時,本研究為伊犁地區(qū)草地資源利用管理提供基礎(chǔ),為伊犁地區(qū)草地資源監(jiān)測和信息管理平臺建設(shè)提供依據(jù),對于指導(dǎo)新疆伊犁地區(qū)草地畜牧業(yè)生產(chǎn)具有現(xiàn)實意義。
[Abstract]:With the support of remote sensing and geographic information system technology, the grassland types in China study have new progress. The research in the area of Yili grassland community height, coverage, aboveground biomass, underground biomass, surface soil bulk density of grassland, soil total carbon, soil organic carbon, soil total nitrogen, soil total phosphorus distribution data base space, through the analysis of the characteristics of different indexes of different grassland types, research to determine the different indicators of all types of grassland in the range of threshold, using the decision tree classification method, realize the automatic identification of grassland types in Xinjiang area of Yili. The results also showed that the use of different types of grassland in the Yili area community height, coverage, aboveground biomass. The underground biomass, surface soil bulk density of grassland, soil total carbon, soil organic carbon, soil total nitrogen, soil total phosphorus characteristic value of 9 indicators as the basis for the division of grassland types, can be simple and intuitive reflect all kinds of 鑽夊湴鐨勭┖闂村垎甯冮潰縐�鍜屽垎甯冭寖鍥�,涓，

本文編號：1594650