诊断层和诊断特性与景观关系探讨 ——以江苏省句容某样区为例

土壤与所处的景观密切相关，诊断层和诊断特性是土壤系统分类中判定土壤类型的依据，诊断层和诊断特性与景观之间具有一定的联系，研究它们的关系有助于更好地辅助土壤调查。本文在景观理论的指导下，对江苏省句容市边城镇开展了样区土壤调查，调查采样的48个主要剖面归属于人为土、淋溶土、雏形土和新成土4个土纲、4个亚纲、9个土类、13个亚类；在此基础上，重点探讨了诊断层和诊断特性与景观之间的关系，结果表明景观能很好地指示某些诊断层和诊断特性，对景观的深入研究可以指导土壤调查与土壤系统分类类型的确定。

Diagnostic horizon and diagnostic characteristics-landscape relationships a case study in a small-scale area of Ju rong county Jiang su

The soil have a close connection with landscape, Diagnostic horizon and the characteristic is the basis for determining soil types in Chinese soil taxonomic classification. It is helpful for soil survey to study the relationship between landscape and diagnostic horizon and the characteristic; In this paper, under the guidance of the landscape, took a small scale area in the county of Ju rong for example, we carried out the soil series survey. The forty-eight main profile in this area were classified into four soil orders ( anthrosols, luvisols, cambisols and entisols), four suborders, nine groups, thirteen subgroups. Based on this, we probed into the relationships between some diagnostic horizons, diagnostic characteristic and landscapes. These results showed that landscape can well indicate some diagnostic horizon and characteristics, the in-depth study of landscape can guide the soil investigation work and determining soil types in Chinese Soil Taxonomy.