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Study on Absorbed Caloric and Air Temperature Reduction of Familiar Fruit Trees in Beijing City(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2015年18
Page:
22-25
Research Field:
Publishing date:

Info

Title:
Study on Absorbed Caloric and Air Temperature Reduction of Familiar Fruit Trees in Beijing City
Author(s):
YANG Chao1LU Shaowei2CHEN Bo2GU Jiancai1LI Shaoning2XIAO Yongqing3NIU Zhibo4
(1.College of Forestry,Agricultural University of Hebei,Baoding,Heibei 071000;2.Forestry and Pomology Institute,Beijing Academy of Agricultural and Forestry Sciences,Beijing 100093;3.Hebei Provincial Farmland,Shijiazhuang,Hebei 050081;4.Flowers Management Center in Hebei Province,Shijiazhuang,Hebei 050081)
Keywords:
economic forest tree speciestranspiration rateabsorbed caloricair temperature reduction
PACS:
-
DOI:
10.11937/bfyy.201518006
Abstract:
Taking apricot,pear,peach,and apple of the main economic forest tree species in north China as materials,portable photosynthesis analyzer CI-340 was used to calculate their transpiration rate.Furthermore,the effect of absorbed caloric and air temperature reduction were also evaluated by the transpiration rate.The results showed that the transpiration rate,absorbed caloric and air temperature reduction of the five varieties of economic forest tree species were different.Pyrus pyrifolia(1.42 mmol?m-2?s-1,2 941.26 kJ?m-2?d-1,0.195 2℃) exhibited the strongest abilities in daily transpiration rate,absorbed caloric and air temperature reduction,while Amygdalus persica Linn (1.25 mmol?m-2?s-1,2 622.27 kJ?m-2?d-1,0.174 0℃) ,Prunus armeniaca (1.22 mmol?m-2?s-1,2 582.81 kJ?m-2?d-1,0.171 4℃) and Malus pumila Mill (1.18 mmol?m-2?s-1,2 499.80 kJ?m-2?d-1,0.165 9℃) showed the moderate abilities,and Prunus armeniaca(1.01 mmol?m-2?s-1,2 073.75 kJ?m-2?d-1,0.137 6℃)displayed the lowest abilities;the 5 varieties of economic forest tree species’ capacity order of diurnal absorbed caloric and air temperature reduction were summer(3 184.74 kJ?m-2?d-1,0.211 3℃)>autumn(2 151.52 kJ?m-2?d-1,0.142 8℃)>spring(1 975.29 kJ?m-2?d-1,0.131 0℃) in different season.Besides,the transpiration rate of trees had a significant positive correlation with the amounts of absorbed caloric and air temperature reduction.

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Last Update: 2015-10-12