主办单位:中国气象局沈阳大气环境研究所
国际刊号:ISSN 1673-503X
国内刊号:CN 21-1531/P

气象与环境学报 ›› 2012, Vol. 28 ›› Issue (5): 34-.doi:

• 论文 • 上一篇    下一篇

1981—2010年黑龙江省夏季土壤湿度演变特征

朱海霞1 宫丽娟1 曲辉辉1 吕佳佳1 王晾晾1 李百超2 纪仰慧1 闫平1 王秋京1 姜丽霞1 王萍1   

  1. 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
  • 出版日期:2012-10-31 发布日期:2012-10-31

The evolution of summer soil moisture from 1981 to 2010 in Heilongjiang province

ZHU Hai-xia1 GONG Li-juan1 QU Hui-hui1 LV Jia-jia1 WANG Liang-liang1 LI Bai-chao2 JI Yang-hui1 YAN Ping1 WANG Qiu-jing1 JIANG Li-xia1 WANG Ping1   

  1. 1. Institute of Meteorological Sciences in Heilongjiang Province, Harbin 150030, China; 2. Heilongjiang Meteorological Service, Harbin 150001, China
  • Online:2012-10-31 Published:2012-10-31

摘要: 利用黑龙江省1981—2010年的土壤湿度数据,以富锦县、龙江县、双城县、黑河市、海伦县、宁安县为代表站点,分析了黑龙江省东、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、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黑龙江省气候条件及土壤理化性质的改变等因素密切相关。

关键词: 黑龙江, 土壤湿度, 变化趋势, 显著

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.

Key words: Heilongjiang province, Soil moisture, Variation tendency, Significance