| 近50年黑龙江省水分盈亏状况变化特征研究 |
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| 引用本文： | 李秀芬,姜丽霞,王晾晾,李帅.近50年黑龙江省水分盈亏状况变化特征研究[J].安徽农业科学,2012,40(29):14391-14396,14546. |
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| 作者姓名： | 李秀芬 姜丽霞 王晾晾 李帅 |
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| 作者单位： | 黑龙江省气象科学研究所,黑龙江哈尔滨,150030 |
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| 基金项目： | 中国气象局气候变化专项(CCSF-09-13);公益性行业(气象)科研专项(GYHY200906021,GYHY200706030) |
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| 摘 要： | 利用黑龙江省1961～2010年65个气象台站的观测资料,结合统计和GIS软件,分析了全年及温度生长期降水、潜在蒸散及水分盈亏情况的变化特征。结果表明,1961～2010年黑龙江省全年和温度生长期内的降水量均呈下降趋势,但全年和温度生长期内参考作物蒸散量的变化趋势并不完全相同,年潜在蒸散量总体呈减少趋势,而温度生长期内的潜在蒸散量多呈增加趋势,总体上表现为水分亏缺状态,特别是进入21世纪以来,水分亏缺尤为严重。
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| 关 键 词： | 黑龙江省 温度生长期 水分盈亏 变化特征 |
Variation Characteristics of Water Budget Condition of Heilongjiang Province in Recent 50 Years |
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| Institution: | LI Xiu-fen et al(Heilongjiang Province Institute of Meteorological Sciences,Harbin,Heilongjiang 150030) |
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| Abstract: | Based on the 1961-2010 weather data from 65 meteorological stations in Heilongjiang Province,using the statistic software and GIS,the change characteristics of water budget,including the precipitation,reference evapotranspiration and water budget in the whole year and the temperature-defined growing season,were analyzed.As indicated by the results,during the whole year and the temperature-defined growing season from 1961 to 2010,the precipitation decreased,the annual reference evapotranspiration decreased,but the reference evapotranspiration during the temperature-defined growing season presented an increasing trend.The water resources were generally characterized by water deficit,especially after 21st century. |
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| Keywords: | Heilongjiang Province Temperature-defined growing season Water budget Variation characteristics |
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