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林业科学 ›› 2005, Vol. 41 ›› Issue (6): 174-178.doi: 10.11707/j.1001-7488.20050631

• 研究简报 • 上一篇    下一篇

花椒林地不同地面覆盖的水热效应研究

刘淑明1 孙长忠2 孙丙寅3   

  1. 1西北农林科技大学生命科学学院,杨凌712100;2.中国林业科学研究院华北林业中心,北京100091;3.陕西杨凌职业技术学院林学系,杨凌712100
  • 收稿日期:2005-04-08 修回日期:1900-01-01 出版日期:2005-11-25 发布日期:2005-11-25

Water and Heat Effect of Different Ground Coverings in Zanthoxylum bungeanum Plantation

Liu Shuming1,Sun Changzhong2,Sun Bingyin3   

  1. 1.College of Life Sciences, Northwest University of Agriculture and Forestry Yangling712100; 2.Forestry Center of North China, CAF Beijing 100091; 3.Department of Forestry, Yangling Vocational and Technological College, Shaanxi Province Yangling712100
  • Received:2005-04-08 Revised:1900-01-01 Online:2005-11-25 Published:2005-11-25

关键词: 花椒林, 地面覆盖, 辐射能, 热量平衡, 水分效应

Abstract:

The radiation energy environment, energy balance and water environment have been studied by means of the 3 treatments of covering plastic film, straw and planting Trifolium repens on the ground of Zanthoxylum bungeanum plantation in Feng County, Shaanxi. The results showed that the ground reflectivity and the canopy net radiation increased in the conditions of covering plastic film, straw and planting T. repens on the ground, so that the reflections in the middle part increased 53.3%,26.3% and 0.8% than that of the contrast. In the heat balance, the hidden heat flux in the conditions of covering plastic film, straw and planting T. repens accounts for 60.2%,62.4% and 65.8% of the net radiation energy, the reaction heat flux accounts for 30.4%,29.7% and 27.1%, and the soil heat flux accounts for 9.4%,7.9% and 7.1%. The soil water content in 0~50 cm were higher 5.6%,8.7% and 13.9% in covering plastic film, straw and planting T. repens on the ground than in the contrast. The transpiration rate of the leaves of Z. bungeanum were 1.6,1.4,1.1 times in planting T. repens,covering plastic film and straw on the ground as that of the contrast in May.

Key words: Zanthoxylum bungeanum plantation, ground covering, radiation energy, energy balance, water effect