南极半岛海洋气候区的土壤Ⅵ.空间可变性与土壤景观

本文通过对南极海洋气候区自然环境和地表特征分析,指出本区土被发育与分布具有明显的不连续性特征;同时,在分析研究本区成土因素的空间变化格局及其对土壤发生、发育与演化影响的基础上,论述了南极海洋气候区土壤属性上的强烈空间可变性和类型上的高度分异性;最后,对本区有代表性的土壤景观系列进行了分析,指出成土因素空间变异的微域性特点造成了本区土壤景观的多样性与复杂性,本区自然环境的快速变化可能最终导致土壤景观的演变与重塑。

SOILS IN THE MARITIME ANTARCTIC Ⅵ.SPATIAL VARIABILITY AND SOIL LANDSCAPE

Through analysis of natural conditions and ground surface features of the maritime Antarctic region, it was first found that the soil catena in the region was characterized by discontinuity. Meanwhile, based on knowledge of their soil-forming factors and their spatial variation, strong spatial variability of attribute and high differentiation of type of the soils formed in this region was demonstrated. Finally, the spatial diversity and complexity of the soil landscapes in the maritime Antarctic region were discussed. And it was concluded that accelerated changes in environmental factors influencing genesis and development of soils would ultimately lead to reshaping of soil landscapes.