| 植被覆盖率变化对气象要素的影响研究 |
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| 引用本文： | 易永力,李艳君. 植被覆盖率变化对气象要素的影响研究[J]. 林业调查规划, 2020, 45(1): 37-40 |
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| 作者姓名： | 易永力 李艳君 |
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| 作者单位： | 承德市气象局,河北 承德 067000;承德护理职业学院,河北 承德 067000 |
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| 摘 要： | 基于河北省围场满族蒙古族自治县1962—2012年植被覆盖变化数据以及1951—2008年地面观测资料,分析植被覆盖率变化对局地气象要素的可能影响。结果表明:植被覆盖率的增加能有效降低平均风和最大风的风速;植被覆盖率达到一定水平后,对大风日数降低的有效性将减弱;植被覆盖率的增加对浮尘日数的降低有正向作用,对年雨日数的增加有一定影响,与年降水量无明显关联性。因此植被覆盖率变化对部分地面气象要素存在反馈作用。
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| 关 键 词： | 植被覆盖率 气象要素 风速 变化速率 信度检验 围场满族蒙古族自治县 |
Influence of Vegetation Coverage Change on Meteorological Elements |
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| YI Yongli,LI Yanjun. Influence of Vegetation Coverage Change on Meteorological Elements[J]. Forest Inventory and Planning, 2020, 45(1): 37-40 |
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| Authors: | YI Yongli LI Yanjun |
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| Affiliation: | (Chengde Meteorological Bureau,Chengde,Hebei 067000,China;Chengde Nursing Vocational College,Chengde,Hebei 067000,China) |
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| Abstract: | Based on the data of vegetation cover change from 1962 to 2012 and the ground observation data from 1951 to 2008 in Weichang,Hebei Province,the possible influence of vegetation cover change on local meteorological factors was analyzed.The results showed that the increase of vegetation coverage effectively reduced the speed of average wind and maximum wind.The effectiveness of reducing the windy days would be weakened when the vegetation coverage reached a certain level.The increase of vegetation coverage rate had a positive effect on the decrease of floating dust days,had a certain impact on the increase of annual rainy days,but had no significant correlation with the annual precipitation.Therefore,the change of vegetation coverage rate had feedback effect on some ground meteorological elements. |
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| Keywords: | vegetation coverage meteorological elements wind speed change rate reliability test Weichang Man and Mongolian Autonomous County |
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