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城市森林土壤温度场的特征(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2003年01期
Page:
21-26
Column:
研究论文
publishdate:
1900-01-01

Article Info:/Info

Title:
A Study on the Thermal Field of the Soil in Urban Forest
Article ID:
1000-2006(2003)01-0021-06
Author(s):
WU Lili
College of Forest Resources and Environment Nanjing Forestry University,Nanjing 210037,China
Keywords:
Urban forest Soil temperatureAnnual variationVertical temperature gradientLayer of constant temperature
Classification number :
S718;S714
DOI:
10.3969/j.jssn.1000-2006.2003.01.005
Document Code:
A
Abstract:
The soil temperature characteristics from soil surface to 20 cm depth are investigated using data measured daily at four climatological observations,three stands and an open field of the located station during the period of 1992~1998.This study considered the index terms in the monthly mean,annual range,monthtomonth difference,amplitude of the monthly variation etc.In addition,according to the distribution of the vertical temperature gradient of the soil in every month,which indicates the direction of the thermal current in the soil.The depth of the layer of the annual constant temperature of the soil was computed with the formula of the thermal wave of the soil,the results showed that the soil depths of the variable temperature inside the stands were deeper 2~5 m than those in the open field.

References

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Last Update: 1900-01-01