地面坡度
It is found that ground slope and the distance to rivers affect the distribution of settlement sites. In each study region, the sites are basically located within the zone with the ground slope of less than 3 degrees and less than 600 meters to the rivers.
地面坡度、距水系的距离都会对聚落的分布产生一定的影响,各研究区域中的聚落基本上都分布于地面坡度小于3°、距离水系600米以内的地带。
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