根据距离反比模型，对山西省20个城市周边地区侵蚀景观因子面积分布系数和空间分布变差函数进行了计算。结果表明，在大多数城市周边地区。各侵蚀景观因子都有一种类型（或级别），其面积分布系数较大，居支配地位。同时，各侵蚀景观因子在城市周边地区分布相对比较均匀，一维变差函数值较小。据侵蚀景观因子面积分布系数和空间变差函数，可将城市周边地区各侵蚀景观因子的空间分布模式分为均匀支配型、均匀非支配型、不均匀支配型和不均匀非支配型等4种类型。山西省建制市周边地区侵蚀景观因子空间分布以均匀支配型居多。

在对延安市宝塔区人为松散堆积物来源及侵蚀状况调查的基础上，探讨了城市化建设开发造成的松散堆积物侵蚀与输移过程，指出松散堆积物由点源扩散—→线状输移—→集中汇聚，是延安市人为松散堆积物输移的主要过程。针对人为松散堆积物的这种侵蚀输移规律，借助图论的基本原理，提出了利用网络解析法对人为松散堆积物的侵蚀与输移进行评价和分析，以期对城市开发建设引发的人为松散堆积物的侵蚀评价有一定的理论依据和实际操作性。

The accelerated urbanization has resulted in new soil erosion in the Loess Plateau region since the 1980s. A concept of urban erosion and its impacts on environment are discussed. The experimental studies and field investigations show that those loose silt and earth piles formed by urban construction can be eroded seriously: Under stormy rain, the amount of sediment from steep man-dumped slope is 10.8-12.2 times that of from uncovered slope land; the result of experiments with the wind tunnel also shows that the damage to the surface structure of dry loess can cause serious soil erosion by wind in some cities of the region. Even if in the urban built-up area, there are many loose sandy soil, mud and silt, which are washed into rivers by city's ground flow in the rainy season. So, anthropogenieally induced soil erosion has made soil erosion more serious around the urban areas. And the urban eroded anviromnant has several characteristics such as fragility, complexity, seasonality and quick variability. Urban areas witness a quick economin growth and have more construction projects than rural areas, which brings more intensive changes of environments during a short period of time or adds some new alements to the erosion system. Therefore erosion has experienced more intensive impact by human activities, So, the possible impact of urbanization onerosion environment must be taken into consideration when designing or planning to exploit natural resources or to develop urban areas in the Loess Plateau.

选用沟谷密度、切割深度、坡度特征值、相对高度及平均侵蚀模数等指标，利用模糊聚类的方法，对延河流域黄土地貌组合类型进行了划分。分析说明了黄土地貌组合的特点，为进一步分析黄土地貌的发育过程以及进行土壤侵蚀评价提供了依据。

阐述了黄土高原地区城市发展较快，城市核心区范围较小，郊区范围较大。城郊型侵蚀坏境由营力系统、界面系统和物源系统组成，它具有脆弱性、组成要素复杂、人为影响强烈、环境变化具有节律性、阶段性和速变性等特点。