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不同利用方式下沙地的水热变化

HYDROTHERMAL CHANGE OF SANDY LAND IN DIFFERENT LAND UTILIZATION

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【作者】 白雪峰王国晨刘洋关延明张日升

【Author】 BAI Xue -feng~1, WANG guo-chen~1, LIU yang~2, GUAN Yan-ming~3,ZHANG Ri-sheng~1 (Sand-Fixation and Afforestation Institute of Liaoning Province,Fuxin 123000,Liaoning,China; 2.Liaoning Agricultural Academy; 3.Zhongshan Park of Shenyang city)

【机构】 辽宁省固沙造林研究所辽宁省农业科学研究院沈阳市中山公园辽宁省固沙造林研究所 辽宁阜新123000辽宁阜新123000辽宁阜新123000

【摘要】 研究结果表明 :生长季内 (6~ 9月 ) ,气温变化幅度农田最大 ,林地最小 ;土壤温度 (0~ 2 0cm)差异以裸地最大 ,农田居次 ,林地最小 ;水面蒸发量由大到小排序为裸地 >农田 >林地 ;农田平均空气湿度为 85 .8% ,林地为 73.5 % ,裸地为 6 8.8% ;农田、林地与裸地相比均具有一定的水分涵蓄作用 ,但作物和林木对土壤水分的消耗作用也不容忽视

【Abstract】 Results of the study showed that in growing stage (June~September) change of air temperature was more in farmland, and less in forest land ; Difference in soil temperature(0~20cm) was most for bare land, was least for forest land, and for farmland was between the two. Evaporation capacity in water surface was in order: bare land > farm land > forest land; Average air humidity of farmland was 85.8%, 73.5% for forest land ,and 68.8% for the bare. Farmland and forest land have a certain function for water conservation in comparison to bare land, but couldn’t be ignored water consumption of crops.

【关键词】 章古台沙地水热变化
【Key words】 ZhanggutaiSandy landhydrothermal change
  • 【文献出处】 防护林科技 ,Protection Forest Science and Technology , 编辑部邮箱 ,2004年S1期
  • 【分类号】S775
  • 【被引频次】4
  • 【下载频次】32
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