RECENT TRENDS OF TEMPERATURE AND PRECIPITATION DISTURBED BY LARGE-SCALE RECLAMATION IN THE SANGJIANG PLAIN OF CHINA
RECENT TRENDS OF TEMPERATURE AND PRECIPITATION DISTURBED BY LARGE-SCALE RECLAMATION IN THE SANGJIANG PLAIN OF CHINA
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DOI：
10.1007/s11769-003-0036-1
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发表时间：
2003-12
影响因子：
3.4
通讯作者：
Yang Min-hua;Deng Wei;Chen Pan-qin
中科院分区：
文献类型：
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作者：
Yang Min-hua;Deng Wei;Chen Pan-qin
研究了三江平原大规模围垦对区域气温和降水观测变化及其突变的影响。该区域的年平均气温呈上升趋势，在过去50年中增加了1.2-2.2°C。20世纪80年代，该地区年平均气温出现了一次增暖跃变，增幅达0.9°C。大部分地区年降水量的线性趋势率为负值。50年来年降水量最大减少量为155.8mm。区域年降水量在20世纪60年代中期出现了一次突变性减少，减少量为102.1mm。根据三江平原近50年来气候变化的事实，认为近年来三江平原的气候变暖幅度大于周边地区，其原因是各种湿地的大规模开垦。
The regional observed temperature and precipitation changes and their abrupt jumps disturbed by large-scale reclamation in the Sanjiang Plain, Northeast China were studied. Mean annual temperature of the region was tending to go up and has increased by 1.2–2.2°C over the past 50 years. A warming jump of mean annual temperature of the region occurred in the 1980s, which had an increase amplitude of 0.9°C. Linear tendency rates of annual precipitation were negative in most of the region. The maximum of annual precipitation decrease was 155.8mm over the past 50 years. An abrupt decrease of regional annual precipitation happened in the middle of the 1960s, which had a decrease of 102.1mm. Based on the fact of climatic change of the Sanjiang Plain over the past 50 years, it is held that the region had larger warming amplitude than that of the surrounding areas in the recent years, which resulted from the large-scale reclamation of various kinds of wetlands.