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中国沙漠 ›› 1995, Vol. 15 ›› Issue (2): 151-157.

• 论文 • 上一篇    下一篇

禹城沙地水分动态规律及其影响因子

冯起, 高前兆   

  1. 中国科学院兰州沙漠研究所, 兰州 730000
  • 收稿日期:1993-08-05 修回日期:1994-11-09 出版日期:1995-06-20 发布日期:1995-06-20

ANALYSIS ON VARIATION LAW OF SANDY SOIL MOISTUER AND ITS INFLUENCING FACTORS IN YUCHENG,SHANDONG

Feng Qi, Gao Qianzhao   

  1. Institute of Desert esearch, Chinese Academy of Sciences, Lanzhou, 730000
  • Received:1993-08-05 Revised:1994-11-09 Online:1995-06-20 Published:1995-06-20

摘要: 通过对禹城沙河地沙土土壤水分动态监测,分析其土壤水分剖面变化,得出本沙地土壤水分动态变化规律:依据降水、植被、地下水和土壤将土壤水分垂直剖面划分为表层0-10m或0-20cm干沙层,20-40cm土壤水分变化剧烈层,40-80cm土壤水分活跃层,80-120cm以下土壤水分深部稳定层;沙地土壤水分随季节变化划分为,春季水分变化较微──弱失水阶段,夏季水分剧烈变化──降水补给阶段,秋季水分变化缓慢——失水阶段,冬季水分变化较微弱──调整阶段。

关键词: 沙地水分, 动态变化规律, 影响因子

Abstract: Through three years of observation to sandy soil moisture variation in Shahe, Yucheng, and analysing soil moisture profole , it has reached the conclusion: from the top to the bottom there exist four distinctive layers of soil moisture , namely surface dry sand layer,0-10 cm or 0-20 cm; extremely active soil moisture layer , 20-40 cm; active soil moisture layer, 40-80 cm; and stable soil moisture layer,80-120 cm. Based on the seasonal variation of sandy soil moisture, it can be divided into four phrases: the soil moisture varies weakly in spring and autumn is highly, variable phrase, summer is active increase phrase, winter is stable and regulational phrase.

Key words: Soil moisture, Sand soil, Dynamic variation