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河南石灰性土壤特征及其在中国土壤系统分类中的修订研究
作者姓名:JU Bing  WU Kening  ZHANG Ganlin  David G. ROSSITER  LI Ling
摘    要:Calcareous soils are those soils containing layers of carbonate accumulation formed by either secondary accumulation or inheritance of CaCO3 from calcareous parent materials.These soils are widely distributed in arid,semi-arid and even some humid climate environments.However,in the Chinese Soil Taxonomy (CST,3rd version),the soils that contain large amounts of CaCO3 but do not meet requirements of Aridosols are classified as Hapli-Ustic Cambosols.This group also includes many non-calcareous soils and those soils strongly affected by secondary carbonate accumulation together with quite dissimilar soils in terms of their morphology and properties.This study was conducted to determine calcification patterns and calcic processes occurring in representative pedons of calcareous soils in northwestern Henan Province,China and to classify these soils in CST.A Calcic subgroup was proposed to add within the Hapli-Ustic Cambosols.A diagnostic key was also provided to separate this subgroup from the Typic subgroup.In this way the different calcification degrees of soils were better reflected in the classification,which should lead to more uniform interpretive groups for better soil management.

关 键 词:calcic  evidence  Calcic  Hapli-Ustic  Cambosols  calcic  horizon  calcification  hypercalcic  horizon  parent  material

Characterization of some calcareous soils from Henan and their proposed classification in Chinese Soil Taxonomy
JU Bing,WU Kening,ZHANG Ganlin,David G. ROSSITER,LI Ling.Characterization of some calcareous soils from Henan and their proposed classification in Chinese Soil Taxonomy[J].Pedosphere,2017,27(4):758-768.
Authors:JU Bing  WU Kening  ZHANG Ganlin  David G ROSSITER and LI Ling
Institution:1. School of Land Science and Technology, China University of Geosciences, Beijing 100083 China;2. State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008 China;3. State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008 China;Section of Soil and Crop Sciences, Cornell University, Ithaca, NY 14850 USA;4. College of Resources and Environmental Sciences, Henan Agricultural University, Zhengzhou 450000 China
Abstract:Calcareous soils are those soils containing layers of carbonate accumulation formed by either secondary accumulation or inheritance of CaCO3 from calcareous parent materials. These soils are widely distributed in arid, semi-arid and even some humid climate environments. However, in the Chinese Soil Taxonomy (CST, 3rd version), the soils that contain large amounts of CaCO3 but do not meet requirements of Aridosols are classified as Hapli-Ustic Cambosols. This group also includes many non-calcareous soils and those soils strongly affected by secondary carbonate accumulation together with quite dissimilar soils in terms of their morphology and properties. This study was conducted to determine calcification patterns and calcic processes occurring in representative pedons of calcareous soils in northwestern Henan Province, China and to classify these soils in CST. A Calcic subgroup was proposed to add within the Hapli-Ustic Cambosols. A diagnostic key was also provided to separate this subgroup from the Typic subgroup. In this way the different calcification degrees of soils were better reflected in the classification, which should lead to more uniform interpretive groups for better soil management.
Keywords:CaCO3  calcic evidence  Calcic Hapli-Ustic Cambosols  calcic horizon  calcification  hypercalcic horizon  parent material
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