[1]JIANG Dandan,WAN Fuxu,HUANG Wenqing.Comparison of Microclimates in Two Mode Plantations in Limestone Mountain[J].Research of Soil and Water Conservation,2015,22(01):110-114.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
22
Number of periods:
2015 01
Page number:
110-114
Column:
Public date:
2015-02-28
- Title:
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Comparison of Microclimates in Two Mode Plantations in Limestone Mountain
- Author(s):
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JIANG Dandan, WAN Fuxu, HUANG Wenqing
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College of Forest Resources and Environment, Nanjing Forestry University, Nanjing 210037, China
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- Keywords:
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mixed forest of Platycladus orientalis and Ligustrum lucidum; pure Platycladus orientalis forest; microclimate
- CLC:
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S715.55
- DOI:
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- Abstract:
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To investigate differences between mixed plantation of Platycladus orientalis and Ligustrum lucidum (CN) and pure Platycladus orientalis forest (CB) effects on microclimate, and in order to provide basis for ecological effect analysis of different modes, air temperature, air relative humidity, soil temperature and soil water content were observed in four seasons, simultaneously measured parameters in open space (CK) were set as control microclimate indices. Results showed that in summer, temperature gaps of CN, CB and CK were the largest before and after noon, and temperature in four seasons was minimum in CN, maximum in CK. Mean monthly temperatures of CN and CB were different but not obvious in spring and summer, while similar in autumn and winter; air relative humidity was in the order of CN > CB > CK, and the highest value occurred in summer, the lowest in spring. Air relative humidity differences of CN and CB were not significant in four seasons. Surface temperatures were higher than temperatures in 5 cm underground in three simple plots, CN had the lowest temperature gap between ground surface and 5 cm underground compared with CB and CK when temperature was higher at 14:00. The temperature difference between surface and subsurface 5 cm was the largest in summer, minimum in winter. Variation of soil water content and air relative humidity was similar, performing as that soil moisture content of mixed forest was higher than that of pure forest. In general, the ability of mixed forests to improve the microclimate is better than that of pure forests with respect to lowering and stabilizing air temperature and soil temperature, increasing air humidity and soil water content.