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Abstract

Recently, because of the growing importance of issues such as global warming and the heat island effect, maintenance of trees and the design of planting on green land have become increasingly significant. This article focuses on variation in sap flow in, and transpiration of, Araucaria heterophylla in Tainan Park. In order to understand the relationship between the allocation of plantings and the physiological functions of trees, the influence of cover conditions and meteorological conditions related to insolation were taken into consideration. First, under the same allocating conditions, the amount of transpiration was affected by differences on the ground (grassy and sandy). The differences in cover conditions have a lot to do with the water physiology of the tree. In addition, other factors such as insolation and changes in the speed of sap flow during a day are positively correlated. The results of this study are the main factors for evaluating the allocation and density of tree plantings and also for analysing the relationship between microclimatic environments and the physiological characteristics of trees.

Keywords

Cover condition sap flow side-row planting row planting mass planting solar radiation

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References

Fujiyama

Hirose

Ootsuki

Ogawa

(2005). Evaluation of transpiration in plantation of chamaecyparis obtusa based on sap flow measurement by Granier method. Bulletin of the Kyushu University Forests, 86(1), 15–31.

Granier

(1985). A new method of sap flow measurement in tree stems. Annales des Sciences Forestieres, 42(2), 193–200.

Hazemoto

Tateishi

Hosoi

Tsujihara

Yasunami

(2007). Field measurements of thermal environment improvement effect by a tree in summer. Architectural Institute of Japan, 46(1), 113–16.

Kojima

Kurata

(2003). A study on growth control of indoor trees (Part ii): Effects of soil temperature on transpiration rate and life span of trees. Eco-Engineering, 15(4), 173–78.

Komatsu

Sawano

Kume

Hashimoto

(2005). Relationships between forest properties and evapotranspiration rates. Journal of the Japanese Forest Society, 87(1), 170–85.

Komatsu

Kume

Yoshifuji

Hotta

Suzuki

(2007a). Transpiration of a cryptomeria japonica plantation in winter: Analysis based on one-year sap flow measurements. The Tokyo University Forests, 117(3), 1–9.

Komatsu

Tanaka

Kume

(2007b). Do coniferous forests evaporate more water than broad-leaved forest in Japan? Journal of Hydrology, 336(2), 361–75.

Muramatsu

Hiraoka

Takishita

Morinaga

Hoshi

Kusaba

Shimazaki

Nakao

(2005). Water movement analysis on satsuma mandarin trees under mulching cultivation. Horticultural Research (Japan), 4(3), 291–295.

Maruta

(1974). Local climate within park and open space. Journal of the Japanese Institute of Landscape Architects, 37(3), 33–55.

10.

Sellami

M.H.

Sifaoui

M.S.

(2003). Estimating transpiration in an intercropping system: Measuring sap flow inside the oasis. Agricultural Water Management, 59(3), 191–204.

11.

Tange

(1987). Estimation of annual canopy transpiration rates on upper, middle, and lower plots along a slope in a manmade 19-year-old cryptomeria japonica stand. The Tokyo University Forests, 76(1), 177–96.

12.

Takemasa

Komoda

(1988). An expression of diurnal change in temperature in upper layer of the sandy soil. Faculty of Engineering Nagasaki University, 18(30), 47–54.

13.

Tanaka

Tsujimura

Shimada

Nakano

(2010). Study on hydrological processes in a soil–plant–atmosphere. Research project in Review/Nissan Science Foundation, FY1996 Annual Research Report, 5–11.

14.

Umeda

Fukao

Oguro

(2006a). Cfd analysis on mitigation effects to the thermal environment of a school site in summer by lawn planting to the playground. Architectural Institute of Japan, Journal of Environmental Engineering, 608, 9–15.

15.

Umeda

Fukao

Tamura

(2006b). Basic investigation on transpiration of a tree in summer for evaluation of thermal environments. Architectural Institute of Japan, 601, 15–20.

16.

Watanabe

Huan

Ooka

(2010). The study on incorporation of the vegetation transpiration model in outdoor thermal environment simulations: The field experiment research about the influences of environmental factors on the transpiration of roadside trees. Architectural Institute of Japan, 883–84.

17.

Yamamoto

Otsuki

Morinaga

(2005). Development of the water stress diagnostic technology of the citrus using spectral measurement and Granier method. FY2005 Final Research Report Summary, Ministry of Education, Culture, Sports, Science and Technology, Tokyo, Japan.

18.

Yoshida

Ooka

Mochida

Tominaga

Murakami

(2000). Study on effect of greening on outdoor thermal environment using three dimensional plant canopy model. Journal of Architecture, Planning and Environmental Engineering, 536, 87–94.

19.

Yuruki

(1962). Influence of planting densities and patterns on the growth of sugi (cryptomeria japonica d. don). The Reports of the Kyushu University Forests, 16(1), 145–54.

The Influence of Tree Allocation and Tree Transpiration on the Urban Microclimate: An Analysis of a Subtropical Urban Park

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