新疆阿尔泰山土壤系统分类

Taxonomic Classification ofthe Soilsin The Altay Mountains

阿尔泰山土壤诊断层有暗沃表层、暗脊表层、干旱表层、草毡表层、粘化层、钙积层、石膏层、雏形层；诊断特性有湿润土壤水分状况、半干润土壤水分状况、干旱土壤水分状况、寒冻土壤温度状况、寒性土壤温度状况、均腐殖质特性（Ｒｈ） 、盐基饱和度等．将１１ 个研究剖面根据《中国土壤系统分类（ 修订方案）》，分为４ 个土纲、６ 个亚纲、９ 个土类、１０ 个亚类．土类是：粘化正常干旱土、石膏正常干旱土、粘化湿润均腐土、粘化干润均腐土、暗沃冷凉淋溶土、简育干润淋溶土、暗沃寒冻雏形土、暗脊寒冻雏形土、草毡寒冻雏形土．

There are diagnostic horizon of soils in the Altay Mountains :mollic epipedon ,umbric epipedon ,aridic epipedon ,mat tic epipedon ,argic horizon ,calcic horizon ,gypsic horizon ,cambic horizon .It’s diagnostic characteristcs :udic soil moisture regime ,ustic soil moisture regime ,aridic soil moisture regime ,gelic soiltemperature regime ,cryic soil temperature regime , and isohumic propery(Rh) ,base saturation .On the base ofit ,discussthe eleven profiles category issuesin the 《Sustematic classification according to The Chinese Soil Taxonomy(Revisal Proposal)》. The results are obtained as follows :the eleven profiles belong to four orders ,six suborders,nine great groups and ten subgroups.The great group are :argic orthic aridisols, gypsic orthic aridisols ,argic udic isohumisols ,argic ustic isohumisols ,mollic boric lavisols ,tipic ustic luvisols ,mollic cryic cambisols,umbric cryic cambisols,mattic cryic cambisols .