长白山区泥炭地泥炭饱和导水率特征研究

doi:10.14088/j.cnki.issn0439-8114.2019.10.010

湖北农业科学 ›› 2019, Vol. 58 ›› Issue (10): 40-44.doi: 10.14088/j.cnki.issn0439-8114.2019.10.010

长白山区泥炭地泥炭饱和导水率特征研究

林兵姿, 王一诺

东北师范大学地理科学学院,长春 130024

收稿日期:2019-03-19 出版日期:2019-05-25 发布日期:2019-12-03
作者简介:林兵姿（1994-）,女,吉林长春人,在读硕士研究生,研究方向为自然地理学,（电话）18943923456（电子信箱）2664067236@qq.com。

Saturated hydraulic conductivity of peat in Changbai Mountain area

LIN Bing-zi, WANG Yi-nuo

College of Geographical Sciences,Northeast Normal University,Changchun 130024,China

Received:2019-03-19 Online:2019-05-25 Published:2019-12-03

摘要/Abstract

摘要： 旨在以长白山区泥炭地为研究对象,初步探讨泥炭饱和导水率（K_sat）的基本特征、影响因素和空间分异性,并对比排水区和自然区泥炭饱和导水率的差异性。结果表明,垂直方向饱和导水率均值在41.00 m/d左右,与其他研究区相比处于中等偏上水平。泥炭的饱和导水率（K_sat）与容重呈负相关,与孔隙度呈正相关,与最小持水量、饱和含水量、有机质含量呈显著正相关。在表层0~50 cm处,排水区的K_sat小于自然区的K_sat。自然状态的泥炭地随着深度的增加,导水能力减弱,K_sat减小。K_sat存在各向异性,63%的样品K_satH大于K_satV,但相差不大,K_satH约为K_satV的1.07倍,二者相关性极高。

关键词: 泥炭, 饱和导水率, 排水, 各向异性

Abstract: The research aimed to take peat land of Changbai Mountain area as research object. The basic characteristics, influencing factors and spatial heterogeneity of saturated hydraulic conductivity（K_sat） of the peat were discussed, and the differences of saturated hydraulic conductivity of the peat between drainage area and natural area were compared. The results indicated that the mean value of the saturated hydraulic conductivity in the vertical direction was about 41.00 m/d, which was at moderate and above level compared with other research areas. The saturated hydraulic conductivity（K_sat） of peat was negatively correlated with unit volume, positively correlated with porosity, and significantly positively correlated with least water-holding capacity, saturation moisture content and organic matter content. At 0~50 cm of surface layer, K_sat in the drainage area was smaller than that in the natural area. The peat land in the natural state increased with the depth. K_sat decreased with the decrease of water conductivity. There were various anisotropy in K_sat. K_satH was larger than K_satV in 63% of samples, but the difference was little. K_satH was about 1.07 times of K_satV, and the correlation between them was extremely high.

Key words: peat, saturated hydraulic conductivity, drainage, various anisotropy

中图分类号:

Q951

林兵姿, 王一诺. 长白山区泥炭地泥炭饱和导水率特征研究[J]. 湖北农业科学, 2019, 58(10): 40-44.

LIN Bing-zi, WANG Yi-nuo. Saturated hydraulic conductivity of peat in Changbai Mountain area[J]. HUBEI AGRICULTURAL SCIENCES, 2019, 58(10): 40-44.

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长白山区泥炭地泥炭饱和导水率特征研究

Saturated hydraulic conductivity of peat in Changbai Mountain area

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