| 1981—2010年黑龙江省夏季土壤湿度演变特征 |
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| 引用本文： | 朱海霞,宫丽娟,曲辉辉,吕佳佳,王晾晾,李百超,纪仰慧,闫平,王秋京,姜丽霞,王萍.1981—2010年黑龙江省夏季土壤湿度演变特征[J].辽宁气象,2012(5):34-39. |
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| 作者姓名： | 朱海霞 宫丽娟 曲辉辉 吕佳佳 王晾晾 李百超 纪仰慧 闫平 王秋京 姜丽霞 王萍 |
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| 作者单位： | [1]黑龙江省气象科学研究所,黑龙江哈尔滨150030 [2]黑龙江省气象局,黑龙江哈尔滨150001 |
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| 基金项目： | 公益性行业气象专项（GYHY201106026）; 科技部农业科技成果转化资金项目（2010GB24160651）共同资助 |
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| 摘 要： | 利用1981—2010年黑龙江省土壤湿度数据,以富锦县、龙江县、双城县、黑河市、海伦县和宁安县为代表站点,分析黑龙江省东、西、南、北部和中部及牡丹江半山区各区域夏季（7—8月）0—50 cm土层土壤湿度的趋势变化和干湿变化,并采用Mann-Kendall法对土壤湿度变化趋势进行显著性和突变点检验。结果表明：夏季0—50 cm土层,黑河市、海伦县和龙江县土壤湿度在30 a间均有不同程度下降,尤其是西部的龙江县土壤湿度下降剧烈;而东部富锦县、南部的双城县和牡丹江半山区的宁安县土壤湿度无明显下降趋势。Mann-Kendall检验结果：近30 a中,黑龙江省夏季0—50 cm土层北部、西部和中部的黑河市、龙江县及海伦县土壤湿度下降趋势显著,并出现了突变区域,表明黑河地区、松嫩平原的西部和北部夏季土壤湿度的干旱化趋势和程度均越来越明显。黑龙江省中西部夏季土壤湿度年际间的下降可能与气候条件及土壤理化性质的改变等因素密切相关。
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| 关 键 词： | 黑龙江 土壤湿度 变化趋势 显著 |
The evolution of summer soil moisture from 1981 to 2010 in Heilongjiang province |
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| ZHU Hai-xia,GONG Li-juan,QU Hui-hui,LV Jia-jia,WANG Liang-liang,LI Bai-chao,JI Yang-hui,YAN Ping,WANG Qiu-jing,JIANG Li-xia,WANG Ping.The evolution of summer soil moisture from 1981 to 2010 in Heilongjiang province[J].Liaoning Meteorological Quarterly,2012(5):34-39. |
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| Authors: | ZHU Hai-xia GONG Li-juan QU Hui-hui LV Jia-jia WANG Liang-liang LI Bai-chao JI Yang-hui YAN Ping WANG Qiu-jing JIANG Li-xia WANG Ping |
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| Institution: | 1.Institute of Meteorological Sciences in Heilongjiang Province,Harbin 150030,China; 2.Heilongjiang Meteorological Service,Harbin 150001,China) |
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| Abstract: | Based on the soil moisture data at 6 weather stations（Fujin,Longjiang,Shuangcheng,Heihe,Hailun,Ning′an）from 1981 to 2010 in Heilongjiang province,the trend of soil moisture and dry-wet variation of different regions at 0-50 cm soil layer from July to August were analyzed,and the significance of soil moisture variation and its abrupt change were discussed by a Mann-Kendall method.The results indicate that soil moisture from 0 cm to 50 cm soil layer in summer decreases in the recent 30 years in Heihe,Hailun and Longjiang,especially in the west of Longjiang.There is not significant decreasing trend in the east of Fujin,the south of Shuangcheng and Ning′an.There are abrupt changes in Heihe,Hailun and Longjiang by a Mann-Kendall test,and it suggests that drought trend and extent of summer soil moisture become significant in Heihe areas,the west and north of the Songnen plain.The decrease of inter-annual summer soil moisture might be related to the climatic conditions and the deterioration of the soil physical and chemical properties in Heilongjiang province. |
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| Keywords: | Heilongjiang province Soil moisture Variation tendency Significance |
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