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中国沙漠 ›› 2008, Vol. 28 ›› Issue (2): 280-283.

• 生物土壤与生态 • 上一篇    下一篇

生态垫覆盖对沙漠土壤水分和温度的影响

张建生1; 张梅花1; 李庆会2; 汪永洋2; 温 源2
  

  1. 1.甘肃农业大学水工学院, 甘肃 兰州 730070; 2.张掖林业科学技术推广站, 甘肃 张掖 734000
  • 收稿日期:2007-01-25 修回日期:2007-04-04 出版日期:2008-03-20 发布日期:2008-03-20

Effects of Eco-mat Mulch on Soil Temperature and Water Content in Desert

ZHANG Jian-sheng1; ZHANG Mei-hua1; LI Qing-hui2; WANG Yong-yang2; WEN Yuan2

  

  1. 1.Department of Water Resources Engineering, Gansu Agricultural University, Lanzhou 730070, China; 2.Zhangye Forestry Extension Station, Zhangye 734000, Gansu, China
  • Received:2007-01-25 Revised:2007-04-04 Online:2008-03-20 Published:2008-03-20

摘要:

在流动沙丘迎风坡覆盖生态垫后,通过对土壤水分和温度的连续观测发现:在生态垫覆盖林地的生长季内,表层0—20 cm的土壤温度和20—60 cm的土壤含水量受覆盖影响最明显。覆盖与未覆盖生态垫的流动沙丘相比,可提高20—40 cm处土壤含水量为56%,提高40—60 cm处土壤含水量58%;7月可降低土壤表层温度14.27℃,且覆盖后土壤各层之间温度变化平缓,对10 cm以下土壤有保温作用。

关键词: 生态垫, 土壤温度, 土壤含水量

Abstract: One-year-period monitoring for soil water content and soil temperature in windward slope of moving dunes with eco-mat mulch proved that compared with the CK the eco-mat mulch might enhance the soil moisture content by 56% within 20-40 cm depth, enhance the soil moisture content by 58% with 40-60 cm depth; whereas, reduce the eco-mat mulch might reduce the soil surface layer temperature by 14.27℃ in July, besides, the soil temperature vary gently between soil layers and the eco-mat had obvious effect of heat and soil moisture conservation below 10 cm soil layer.

Key words: eco-mat, soil temperature, soil water content

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