CAJ | 학술논문

利用1961—2008年黑龙江省逐日气象观测资料,计算综合气象干旱指数（CI）,分析黑龙江省作物生长关键期（5—8月）气象干旱频率和气象干旱强度变化。结果表明：黑龙江省作物生长关键期干旱频率1960年最大为79%,1980年最小为58%,干旱频发中心位置变化不大,主要出现在松嫩平原西南部,但集中区向北转移。黑龙江省作物生长关键期干旱强度1960年为最强,其次为2000年,干旱强度最大区域基本稳定在松嫩平原西南部和三江平原中东部。2000年以来,作物生长关键期干旱频发且强度加大,北部渐频、渐强,原来较少发生干旱的三江平原干旱也时有发生且强度较大。
이용1961—2008년흑룡강성축일기상관측자료,계산종합기상간한지수（CI）,분석흑룡강성작물생장관건기（5—8월）기상간한빈솔화기상간한강도변화。결과표명：흑룡강성작물생장관건기간한빈솔1960년최대위79%,1980년최소위58%,간한빈발중심위치변화불대,주요출현재송눈평원서남부,단집중구향북전이。흑룡강성작물생장관건기간한강도1960년위최강,기차위2000년,간한강도최대구역기본은정재송눈평원서남부화삼강평원중동부。2000년이래,작물생장관건기간한빈발차강도가대,북부점빈、점강,원래교소발생간한적삼강평원간한야시유발생차강도교대。
Based on the daily meteorological data from 1961 to 2008,the meteorological drought comprehensive index（CI）was calculated,and the changes of drought frequency and drought intensity during the critical period of crop growth（from May to August）in Heilongjiang province were analyzed.The results show that the maximum and minimum drought frequencies are 79% and 58% and appear in 1960 and 1980,respectively.The position of drought center seldom changes,and most are located in the southwestern Songnen plains and focus areas move northward.The largest drought intensity occurs in 1960,then in 2000,and the larger areas of drought intensity are steadily located in the southwest Songnen plains and the middle and eastern Sanjiang plains.The drought has been frequent and intensity has increased during the critical periods of crop growth since 2000,especially in the north regions.In the past,drought event is seldom in the Sanjiang plains,but now it occurs from time to time and the intensity is stronger.