第二部分具体阐述了阿尔泰山两河源区的自然生态环境、社会经济状况。
In the second part, the author describes the natural environment and economic conditions of source region of the two rivers in Altai Mountain.
第二部分主要概述了研究区的自然和社会经济状况。
The second part provides an overview of the study area about the main natural and socioeconomic conditions.
根据河北省自然灾害的区域分异规律和社会经济状况，提出了河北省自然灾害区划的原则、方法指标体系，进行了自然灾害区划，并对不同灾害区提出了防灾减灾对。
Based on the regional distributive laws of natural hazards and economics in Hebei province, the principles, methods and index systems of Hebei natural hazard regionalization have been advanced.
根据河北省自然灾害的区域分异规律和社会经济状况，提出了河北省自然灾害区划的原则、方法指标体系，进行了自然灾害区划，并对不同灾害区提出了防灾减灾对。
Based on the regional distributive laws of natural hazards and economics in Hebei province, the principles, methods and index systems of Hebei natural hazard regionalization have been advanced.
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