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HYDROTHERMAL CHANGE OF SANDY LAND IN DIFFERENT LAND UTILIZATION

Bai Xue

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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.

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What this paper is about

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.

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Available 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.

Key concepts: Environmental science, Land use, Agroforestry, Land development, Cultivated land, Forestry, Hydrology (agriculture), Geography

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