Abstract
The effects of soil water and meteorological factors affecting transpiration of Pinus tabulaeformis were studied under different levels of soil water content to offer a scientific basis for increasing efforts in afforestation survival and management of soil water in forested land. Under artificial control methods for soil water and potting experiments, the transpiration rate (T r) of P. tabulaeformis and environmental factors were measured using a portable steady porometer (Li-1600) and a speedy weight method (BP-3400) during a representative fine day in the growing season of 2004. The results indicated that the diurnal course of T r and R st of P. tabulaeformis displayed a double-peaked curve and a “W” curve under different levels of soil water content. Given a representative fine day, the T r could be represented as a cubic relation with soil water content (SWC). The SWC which caused maximum T r values of P. tabulaeformis was 17.7%, 19.8%, and 17.5% in July, August and October respectively. T r was affected not only by physiological characteristics, but also by SWC and meteorological factors. T r was significantly correlated with meteorological factors when the soil water was sufficient, but this correlation would decrease under conditions of serious water stress. Under such stress conditions, air temperature was the primary factor to affect T r in July and August and photosynthetically active radiation (PAR) was the primary factor in October. When soil water is sufficient, the main factors affecting T r were relative humidity (RH), air temperature (T a) and leaf temperature (T l) in July, August and October respectively.
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References
Bu C F, Liu G B (2005). Study on the transpiration of Sophora viciifolia in the hilly and gully Loess Plateau. Bull Bot Res, 25(1): 64–68 (in Chinese)
Fu J, Wang J, Gao J S, Wang D T (1998). The relationship between net photosynthetic rate and transpiration rate of several kiwifruit strains and environmental factors. Acta Bot Boreal-Occidental Sin, 18(1): 90–96 (in Chinese)
Guo L S, Tian Y L (1992). Transpiration rate of coniferous and broadleaf young trees as a function of water potential of their leaves and of environmental factors. Act Ecol Sin, 12(1): 47–52 (in Chinese)
Irvine J, Perks M P (1998). The response of Pinus sylvestris to drought: stomatal control of transpiration and hydraulic conductance. Tree Physiol, 18: 393–402
Kumar B, Pandey D M, Goswami C L, Jain S (2001). Effect of growth regulators on photosynthesis, transpiration and related parameters in water stressed cotton. Biol Plant, 44(3):475–478
Lagergren F, Lindroth A (2002). Transpiration response to soil moisture in pine and spruce trees in Sweden. Agric For Meteorol, 112(2): 67–85
Li X Y, Zhao Q, He X Y, Lin L S (2004). The physiological and ecological characteristics of moisture in two plant species at the forestland of Qira Oasis. Arid Zone Res, 21(2): 171–174 (in Chinese)
Meng P, Zhang J S, Wang HS, Gao J, Chu JM (2005). Rule of apple trees transpiration and its relation to the micrometeorology on the canopy. Act Ecol Sin, 25(5): 1075–1081 (in Chinese)
Michael M, David T (2004). Effects of flooding and drought on stomatal activity, transpiration, photosynthesis, water potential and water channel activity in strawberry stolons and leaves. Plant Growth Regul, 42: 153–160
Shi Q, Yu X X, Li W Y, You X L (2004). Experiment of water consumption of water conservation forest by weighing methods. Sci Soil Water Conserv, 2(2): 84–87 (in Chinese)
Tian J H, He K N, Wang B T, Zhang W Q, Yin J (2005). Relationship between transpiration of Platycladus orientalis and environmental factors in semi-arid region on Loess Plateau. J Beijing For Univ, 27(3): 53–56 (in Chinese)
Wang J X, Huang B L, Wang M C, Wang D H (2005). Sensitivity of Platycladus orientalis young tree to water stress and its transpiration efficiency at different growth stages during annual growth period. Act Ecol Sin, 25(4): 711–718 (in Chinese)
Yue C L, Jiang H, Zhu Y M (2003). Preliminary studies on transpiration of Acanthopanax brachypus and relationship with physioecological factors. Sci Silv Sin, 39(2): 158–161 (in Chinese)
Zhang J C, Zhao M, Zhang Y C, Xu Y S (2005). A research between photosynthetic, transpiration characteristics and impact of irrigated vegetation of Haloxylon ammodendron and Nitraria tangutorum. Act Bot Boreal-Occidental Sin, 25(1): 70–76 (in Chinese)
Zhou P, Li J Y, Zhao L J (2002). Characteristics of seedlings water consumption by transpiration of main afforestation tree species in north China. J Beijing For Univ, 24(5): 50–55 (in Chinese)
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Translated from Science of Soil and Water Conservation, 2007, 5(1): 49–54 [译自: 中国水土保持科学]
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Zhang, W., Wang, Y., He, K. et al. Factors affecting transpiration of Pinus tabulaeformis in a semi-arid region of the Loess Plateau. Front. For. China 3, 194–199 (2008). https://doi.org/10.1007/s11461-008-0026-7
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DOI: https://doi.org/10.1007/s11461-008-0026-7