20世纪前半期黄土高原生态环境研究--以陕甘宁边区为例

目的 以陕甘宁边区为例，揭示20世纪前半期黄土高原生态环境及其与经济建设的关系，为今天本区域生态环境的重建和经济可持续发展提供借鉴与指导。方法 采用献考证和野外考察相结合的研究方法。结果 边区大规模的经济建设使边区度过了抗战最困难的时期，但对生态环境却是一种短期行为，在一定程度上造成了林草面积减少，水土流失加剧，生物的多样性减少和自然灾害频发。结论 经济建设应当有步骤、有序地进行，才能保证经济的可持续发展。

Research on ecological environmental changes in the Shaanxi-Gansu-Ningxia border area during the period of 20 century

AimThe relationship between economical construction and ecological environmental changes in the Shaanxi-Gansu-Ningxia border area during the period of war against Japan was researched ,some suggestions were put forward about economical development and environmental rebuild.MethodsApplying the methods of documentary research and field investigation.ResultsIn order to survive,the Communist Party developed economy greatly during the war period, the area under cultivation increased greatly and sodid the number of factory and then forest and grass were destoried ,water and soil erosion became serious ,variety of living beings decereased .ConclusionShan-Gan-Ning border area is one of the regions where ecological environment is terrible now,if we want to change the situation,we must know the past of the region. Economical construction should go on step by step.