| 内蒙古鄂温克族自治旗温性草甸草原土壤含水量动态变化与气候因子的关系 |
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| 引用本文： | 张敬超,金磊.内蒙古鄂温克族自治旗温性草甸草原土壤含水量动态变化与气候因子的关系[J].畜牧与饲料科学,2019,40(1):75-79. |
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| 作者姓名： | 张敬超 金磊 |
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| 作者单位： | [1]内蒙古鄂温克族自治旗气象局,内蒙古鄂温克族自治旗021100 |
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| 摘 要： | 对内蒙古东北部鄂温克族自治旗1990—2017年气象数据与温性草甸草原土壤含水量数据进行了分析,并对土壤含水量的动态变化与气候因子之间的相关关系进行了研究。结果表明,研究区域1990—2017年4—10月平均气温以0.47℃/10年的速度上升;4—10月降水量以28.3 mm/10年的速度下降;各层土壤含水量与日照时数、温度、相对湿度相关性很小;与降水量之间均呈极显著正相关(P<0.01);0～10、10～20、20～30、30～40、0～50 cm土层的土壤含水量与蒸散量达到极显著负相关(P<0.01),40～50 cm土层的土壤含水量与蒸散量达到显著负相关(P<0.05)。根据相关性分析,选取蒸散量与降水量(4—10月)为土壤含水量的主要影响因子,并建立了回归方程。
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| 关 键 词： | 鄂温克族自治旗 温性草甸草原 气候因子 土壤含水量 相关性分析 |
| 收稿时间： | 2018-10-26 |
Relationship between Soil Moisture Dynamics and Climatic Factors in Temperate Meadow Steppe in Ewenki Autonomous Banner of Inner Mongolia |
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| ZHANG Jing-chao,JIN Lei.Relationship between Soil Moisture Dynamics and Climatic Factors in Temperate Meadow Steppe in Ewenki Autonomous Banner of Inner Mongolia[J].Animal Husbandry and Feed Science,2019,40(1):75-79. |
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| Authors: | ZHANG Jing-chao JIN Lei |
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| Institution: | [1]Meteorological Bureau of Ewenki Autonomous Banner of Inner Mongolia,Ewenki Autonomous Banner 021100,China |
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| Abstract: | By analyzing the meteorological data and soil moisture data from 1990 to 2017 in temperate meadow steppe in Ewenki Autonomous Banner locating in northeastern Inner Mongolia,the correlation between the soil moisture dynamics and climatic factors was investigated.The results showed that the average temperature was increased at a rate of 0.47 ℃/10 a from April to October during 1990 to 2017 in the study area,while the precipitation was decreased at a rate of 28.3 mm/10 a;the correlation between soil moisture in different layers and sunshine hours,temperature and relative humidity was minor;there was a very significant positive correlation between soil moisture and precipitation(P<0.01);the soil moisture in layers of 0-10,10-20,20-30,30-40,0-50 cm was very significantly negatively correlated with evapotranspiration(P<0.01),and that in layer of 40-50 cm was significantly negatively correlated with evapotranspiration(P<0.05).According to correlation analysis,evapotranspiration and precipitation(from April to October)were selected as the main factors affecting soil weight and moisture,and the regression equation was established. |
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| Keywords: | Ewenki Autonomous Banner temperate meadow steppe climatic factors soil moisture correlation analysis |
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