农业科技与装备
農業科技與裝備
농업과기여장비
AGRICULTURAL SCIENCE & TECHNOLOGY AND EQUIPMENT
2015年
5期
60-62
,共3页
Z指标%旱涝特征%降水量%旱涝灾害
Z指標%旱澇特徵%降水量%旱澇災害
Z지표%한로특정%강수량%한로재해
Z index%drought and flood features%rainfall%drought and flood disaster
根据1951—2012年赤峰松山区降水资料，利用Z指标方法确定松山区的旱涝年份，并从季节上进行旱涝分析。结果表明，松山区逐年降水量呈缓慢下降趋势；发生旱灾有16 a，涝灾有13 a，出现旱涝灾害的概率为46．78％，且有连年发生的情况；各季节降水量的变化趋势也不一致，春夏季节呈上升趋势，秋冬季节呈下降趋势，四季节发生旱涝灾害的概率约占35％左右。
根據1951—2012年赤峰鬆山區降水資料，利用Z指標方法確定鬆山區的旱澇年份，併從季節上進行旱澇分析。結果錶明，鬆山區逐年降水量呈緩慢下降趨勢；髮生旱災有16 a，澇災有13 a，齣現旱澇災害的概率為46．78％，且有連年髮生的情況；各季節降水量的變化趨勢也不一緻，春夏季節呈上升趨勢，鞦鼕季節呈下降趨勢，四季節髮生旱澇災害的概率約佔35％左右。
근거1951—2012년적봉송산구강수자료，이용Z지표방법학정송산구적한로년빈，병종계절상진행한로분석。결과표명，송산구축년강수량정완만하강추세；발생한재유16 a，로재유13 a，출현한로재해적개솔위46．78％，차유련년발생적정황；각계절강수량적변화추세야불일치，춘하계절정상승추세，추동계절정하강추세，사계절발생한로재해적개솔약점35％좌우。
The article is based on the rainfall data in 1951—2012 in Songshan district in Chifeng, used the method of Z index to determine the drought and flood year, and did the analysis from the aspect of seasons. The result shows that the rainfall is gradually declining year by year in Songshan district; there are 16 drought years, 13 flood years, the drought and flood rate is 46.78%, and occasionally have successive years for the situation; the variation trend of the rainfall in various seasons is not consistent, it is upward trend in spring and summer, downward trend in autumn and winter, the drought and flood rate in the four seasons is about 35%.
