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地质工作扩大服务领域之一是农田整治(包括土壤改良)工程地质。我们在进行1/200000区域水文地质测绘时曾对山地农田分布的两个典型地区——云南省曲靖东山地区和寻甸阿旺地区进行农田整治工程地质试点调查。现介绍如下,以供相类似地区农田整治工作参考。 一、曲靖东山地区 本区碳酸盐岩广布,岩溶发育,为岩溶山地地貌。自然土壤按不同的类型可划分为三个土壤景观带(图1): (一)沼泽黑色土与胶泥带。分布于大型岩溶洼地和谷地、坝子中,母质层主要为
One of the areas of expanded service for geological work is the engineering geology of farmland remediation (including soil remediation). We conducted a 1: 200000 regional hydrogeological mapping of the two typical areas of mountain farmland distribution - the Qujing Dongshan area in Yunnan Province and Xundian Ngawang area of farmland renovation project geological pilot survey. Now introduced as follows, for similar areas of farmland remediation work reference. First, the Qujing Dongshan area carbonate widely distributed, karst development, karst mountain landscape. Natural soils can be divided into three soil landscape zones by different types (Figure 1): (a) Marsh black soil and clay belt. Distributed in large karst depressions and valleys, bazi, the parent material layer is mainly