CAJ | 학술논문

利用云南122个测站1961-2006年逐月降水量、气温观测资料,依据高桥浩一郎的陆面实际蒸散发经验公式,计算了云南可利用降水量,分析了全球气候变暖背景下云南可利用降水量的变化特征,获得了一些有意义的结果:1)近50年来云南可利用降水量在春季增加,而其余季节减少,特别是夏季可利用降水量明显减少,导致云南年可利用降水量明显减少.2)云南可利用降水量除冬季年代际变化不明显,年际变化明显外,其余季节及年可利用降水量都存在明显的年代际及年际变化.3)从区域趋势变化看,云南大部可利用降水量在冬、春季以增加为主;夏季以减少为主;秋季东部减少,西部增加,全年可利用降水量东部、南部以减少为主,其余地区以增加为主.4)年可利用降水量在全球气候偏暖年以偏少为主,而在偏冷年则以偏多为主.
이용운남122개측참1961-2006년축월강수량、기온관측자료,의거고교호일랑적륙면실제증산발경험공식,계산료운남가이용강수량,분석료전구기후변난배경하운남가이용강수량적변화특정,획득료일사유의의적결과:1)근50년래운남가이용강수량재춘계증가,이기여계절감소,특별시하계가이용강수량명현감소,도치운남년가이용강수량명현감소.2)운남가이용강수량제동계년대제변화불명현,년제변화명현외,기여계절급년가이용강수량도존재명현적년대제급년제변화.3)종구역추세변화간,운남대부가이용강수량재동、춘계이증가위주;하계이감소위주;추계동부감소,서부증가,전년가이용강수량동부、남부이감소위주,기여지구이증가위주.4)년가이용강수량재전구기후편난년이편소위주,이재편랭년칙이편다위주.
Based on the monthly precipitation and temperature data of Yunnan's 122 stations from 1961 to 2006, the utilizable precipitation was calculated by means of Takahashi's evaporation equation. Its evolutional characteristics under the background of the global climate warming were analyzed by using the methods of regression analysis. The results indicate that the utilizable precipitation decreased in summer, autumn and winter season, especially in summer,so that annual utilizable precipitation also obviously reduced in the past nearly 50 years over Yunnan Province. The seasonal and annual utilizable precipitation all showed distinctively interannual and interdecadal oscillations except the winter utilizable precipitation which only displayed interannual variations. Regionally, winter and spring utilizable precipitation increased, and summer one reduced in most of Yunnan Province, and autumn utilizable precipitation reduced in the eastern but increased in the westem of Ytmnan Province;and annual utilizable precipitation reduced in the eastern and southern of Yunnan Province, but mainly increased in the rest areas. When the global climate was warmer, annual utilizable precipitation was lesser in most of Yunnan Province and vice versa.