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中、新生代地质作用对辽西地区土地资源状况有着重要影响 .其一 ,地质作用决定了土地资源自然状况 :构造岩浆活动、区域造山动力等地质作用决定了区域地貌特征及土地资源的空间分布格局 ;风化作用、河流地质作用形成了不同类型的成土母质 ,决定了土层结构类型、土壤理化性质等土地资源的物质特征 .其二 ,地质作用在很大程度上影响着土地资源的演化趋势 :风、流水、重力等地质作用一直以不同的方式和程度改变着土地资源状况———在人类活动的参与下这种改变正愈演愈烈 ,如荒漠化、山体滑坡、泥石流、水土流失等 .正确认识并科学分析这类地区地质作用与土地资源状况的关系 ,对于合理利用并有效保护土地资源具有重要意义 .
The Mesozoic and Cenozoic geological processes have an important influence on the status of land resources in western Liaoning.First, the geological effect determines the natural state of land resources: the geological action of tectonic magmatism and regional orogenic dynamism determines the regional geomorphic features and the spatial distribution pattern of land resources ; Weathering and river geological formation formed different types of parent material, which determined the physical characteristics of soil resources such as soil structure and soil physical and chemical properties.Secondly, the geological effect greatly affected the evolution of land resources : The geological effects of wind, water and gravity have changed the state of land resources in different ways and with different degrees --- with the involvement of human activities, such changes are fiercer and harder, such as desertification, landslides, debris flows, soil erosion, etc. A correct understanding And scientifically analyzing the relationship between the geological function and the status of land resources in such areas is of great significance for the rational utilization and effective protection of land resources.