云南地理环境研究
雲南地理環境研究
운남지리배경연구
YUNNAN GEOGRAPHIC ENVIRONMENT RESEARCH
2012年
3期
37-42
,共6页
地质灾害易发性分区%临界雨量%统计预报方程%云南省红河州
地質災害易髮性分區%臨界雨量%統計預報方程%雲南省紅河州
지질재해역발성분구%림계우량%통계예보방정%운남성홍하주
regionalization based on geological hazards%critical precipitation%statistical forecasting equations%Honghe Prefecture in Yunnan Province
根据红河州国土局提供的地质灾害易发性分区资料，将全州134个乡镇按地质灾害易发程度分为极易发区、易发区和轻易发区，全州约90％的地区为易发区和极易发区，仅北部的小面积地区为轻易发区；对红河州1984—2010年地质灾害资料分析发现，90％以上的地质灾害发生在5～10月，与降雨关系密切，强降雨及连阴雨均可能诱发地质灾害；对其中183条地质灾害样本进行分析，得出各分区临界雨量及地质灾害统计预报方程，将地质灾害等级预报细化到乡镇。
根據紅河州國土跼提供的地質災害易髮性分區資料，將全州134箇鄉鎮按地質災害易髮程度分為極易髮區、易髮區和輕易髮區，全州約90％的地區為易髮區和極易髮區，僅北部的小麵積地區為輕易髮區；對紅河州1984—2010年地質災害資料分析髮現，90％以上的地質災害髮生在5～10月，與降雨關繫密切，彊降雨及連陰雨均可能誘髮地質災害；對其中183條地質災害樣本進行分析，得齣各分區臨界雨量及地質災害統計預報方程，將地質災害等級預報細化到鄉鎮。
근거홍하주국토국제공적지질재해역발성분구자료，장전주134개향진안지질재해역발정도분위겁역발구、역발구화경역발구，전주약90％적지구위역발구화겁역발구，부북부적소면적지구위경역발구；대홍하주1984—2010년지질재해자료분석발현，90％이상적지질재해발생재5～10월，여강우관계밀절，강강우급련음우균가능유발지질재해；대기중183조지질재해양본진행분석，득출각분구림계우량급지질재해통계예보방정，장지질재해등급예보세화도향진。
According to geological disasters susceptibility zonation information provided by Land Bureau of Hong- he prefecture, 134 township is divided into three areas： extremely prone area、 prone area and light prone are- a. About 90% regions is apt to occur geological disasters and the southern and western regions is more serious. By analyzing disaster cases from 1984 to 2010, it is found that 90% geological disasters occurred from May to Octo- ber, which is similar to the rainfall distribution, heavy rain and continuous rain can probably lead to geological disasters. The critical precipitation is determined and the statistic forecasting equation is built of every area by using of 183 samples, and the 5 grades potential forecasting of geological hazards is refined to the township.
