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本文讨论的“桂林地区”指现在的广西壮族自治区桂林市及所辖郊县,地理范围大约在东经109°36′~110°29′,北纬24°35′~25°21′,面积4195平方公里~([1])。本区位于五岭以南,年平均温度18.8摄氏度,年平均降雨量为1872毫米,属于中亚热带季风气候~([1])。有发育的岩溶地貌,形成许多岩洞和岩厦,其中不少岩洞成为史前人类的“居所”。
The “Guilin area” discussed in this paper refers to the present Guangxi Zhuang Autonomous Region and its suburb counties under the jurisdiction of the geographical range of about 109 ° 36’-110 ° 29’E and latitude 24 ° 35’-25 ° 21’and area 4195 square kilometers ~ ([1]). The area is located in the south of Wuling, the annual average temperature of 18.8 degrees Celsius, the average annual rainfall of 1872 millimeters, belonging to the subtropical monsoon climate ~ ([1]). There are developed karst landforms, the formation of many caves and rock buildings, many of which caves become prehistoric human “residence ”.