光温条件和土壤湿度对栓皮栎幼苗蒸腾潜热和叶温的影响

doi:10.16843/j.sswc.2017.01.008

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Abstract [Background] Drought threats plants' survival and in the same time it causes variation of their leaf temperature (T_L), which provides people an efficient path to diagnose soil moisture. Many scholars have been using crop leaf-air temperature deficit (LATD) to calculate crop water stress index (CWSI). However, there are few studies on leaf-air temperature of Quercus variabilis, and no works on diagnose of soil moisture. The transpiration (T_r) of Q. variabilis is less than that of crops, and its LATD is larger than agricultural crop, thus the water stress index (WSI) of Q. variabilis should be different to CWSI. The key that uses LATD to evaluate water stress is to analyze the energy factors of leaf temperature. [Methods] Watering the pots then soil moisture decreased through natural evaporation, we controlled soil moisture in 3 levels: light drought, 12.5%-14.5% (W₁); moderate drought, 9.5%-11.5% (W₂), and severe drought, 5.5%-7.5% (W₃). Selecting clear and cloudy days, from 8:00 to 18:00, we measured T_r and T_L as well as air temperature (t) and solar radiation (R). We also measured T_r in artificial chamber controlling temperature at 25-43℃, at every 2℃interval of treating temperature. According to the ratio of net radiation ΔR, convection Φ_c, latent heat of transpiration LE, and leaf area density ρ, heat capacity C_p:ΔR/ρC_p,Φ_c/ρC_p,LE/ρC_p ,we calculated the contribution of each energy item to T_L. [Results] 1) The T_r of W₁ was close to of normal soil moisture, the maximum T_r was 2.5 mmol/(m²·s). The T_r of W₂ and W₃ reduced to be <1.5 mmol/(m²·s). 2) In clear day, T_r positively related to solar radiation, which indicated that solar radiation was main factor of T_r. The slopes of the regression line between T_r and solar radiation were different with different soil moistures, the dryer the soil was, and the greater the slope was. 3) In cloudy day, the relation coefficient between T_r and solar radiation decreased clearly, which meant T_r did not decline with short time interval of radiation reducing, once transpiration started in the morning. 4) On any case of soil moisture, air temperature was not main factor of T_r. Though in artificial chamber the linear relation of T_r and temperature was clear, T_r was lower than natural clear day. [Conclusions] 1) Light drought did not impact T_r of Q. variabilis. 2) When wind speed was zero, solar radiation was main factor of leaf temperature variation. Net radiation accounted for 50%-70% of energy budget, and provided approximately 7℃ of leaf temperature variation. 3) The latent heat of T_r and convection heat exchange had an equal effect on energy budget, which accounted for 10%-20% respectively. Each of two factors caused approximately 1-2℃ of leaf temperature variation respectively.

Key words： Quercus variabilis radiation temperature soil moisture transpiration leaf temperature

Received: 04 August 2016

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S167

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	Articles by authors
	CHEN Jingling
	WANG Peishu
	LIU Linqi
	WANG Qian
	WANG Xu
	YANG Xitian
	ZHANG Jinsong

Cite this article:

CHEN Jingling,WANG Peishu,LIU Linqi, et al. Impacts of radiation, temperature and soil moisture on hidden heat of transpiration and leaf temperature of Quercus variabilis seedlings[J]. SSWC, 2017, 15(1): 62-70.

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http://journal12.magtechjournal.com/Jweb_stbc/EN/10.16843/j.sswc.2017.01.008 OR http://journal12.magtechjournal.com/Jweb_stbc/EN/Y2017/V15/I1/62

[1]	谢会成.栓皮栎光合生理生态的研究[D].南京:南京林业大学,2002:23. XIE Huicheng. A study on the photosynthetic physioecology of oriental oak[D].Nanjing:Nanjing Forestry University,2002:23.
[2]	刘震.我国水土保持情况普查及成果运用[J].中国水土保持科学,2013,11(2):1 LIU Zhen. Soil and water conservation survey in China and its application[J].Science of Soil and Water Conservation,2013,11(2):1.
[3]	马莉薇,张文辉,薛瑶芹,等.秦岭北坡不同生境栓皮栎实生苗生长及其影响因素[J].生态学报, 2010, 30(23): 6512. MA Liwei, ZHANG Wenhui, XUE Yiaoqin, et al. Growth characteristics and influencing factors of Quercus variabilis seedlings on the north slope of Qinling Mountains[J].Acta Ecologica Sinica, 2010, 30(23): 6512.
[4]	张劲松,孟平,高峻,等.基于冠层叶气温差的苹果园土壤水分预报模型[J].农业工程学报,2007,23(6):17. ZHANG Jinsong, MENG Ping, GAO Jun, et al. Model for predicting soil water status based on the canopy-air temperature differential in apple orchard[J].Transactions of the Chinese Society of Agricultural Engineering, 2007, 23(6):17.
[5]	PAN Luan, ADAMCHUK V I, FERGUSON R B, et al. Analysis of water stress prediction quality as influenced by the number and placement of temporal soil-water monitoring sites[J]. Journal of Water Resource and Protection, 2014, 6:961.
[6]	YANG Yongmin, SU Hongbo, ZHANG Renhua. A new evapo-transpiration model accounting for advection and its validation during SMEX02[J]. Advances in Meteorology, Volume 2013,2013:1.
[7]	JAHAN M S, NORDIN M N B, LAH M K B C, et al. Effects of water stress on rice production: bioavailability of potassium in soil[J]. Journal of Stress Physiology & Biochemistry, 2013, 9 (2): 97.
[8]	王佩舒,王威红,陈景玲,等.栓皮栎幼苗叶气温差随太阳辐射和风速变化的列线研究[J].中国农业气象,2016,37(2):213. WANG Peshu, WANG Weihong, CHEN Jingling, et al. Series lines on change of leaf temperature difference of Quercus variabilis with solar radiation and wind speed[J].Journal of Chinese Agricultural Meteorology,2016,37(2):213.
[9]	严菊芳,张嵩午.不同温型小麦灌浆结实期农田热量平衡及其气象效应[J].西北农林科技大学学报,2007,35(9):49. YAN Jufang, ZHANG Songwu. Study on the heat balance and the meteorological effect during milk-filling and burliness stage of the different type wheat [J]. Journal of Northwest A& F University,2007,35(9):49.
[10]	刘云,宇振荣,孙丹峰,等.冬小麦冠气温差及其相关影响因素关系研究[J].灌溉排水学报,2004,23(1):30. LIU Yun, YU Zhenrong, SUN Dan. Difference of canopy-air temperature and its affecting factors [J]. Journal of Irrigation and Drainage,2004,23(1):30.
[11]	刘婧然,武金坤,王喆,等.棉花叶温与气象条件的关系研究[J].节水灌溉,2013(2):1. LIU Jingran, WU Jinkun, WANG Zhe, et al. Relation between cotton leaf temperature and meteorological conditions[J]. Water Saving Irrigation,2013(2):1.
[12]	张寄阳,段爱旺,孙景生等.作物水分状况自动监测与诊断的研究进展[J].农业工程学报,2006,22(1): 174. ZHANG Jiyang, DUAN Aiwang, SUN Jingsheng , et al. Advances in automated monitoring and diagnosis of crop water status[J].Transactions of the Chinese Society of Agricultural Engineering,2006,22(1):174.
[13]	崔玉川,张文辉,王校峰.栓皮栎幼苗对土壤干旱胁迫的生理响应[J]. 西北植物学报,2013,33(2):0364. CUI Yuchuan, ZHANG Wenhui, WANG Xiaofeng. Physiological responses of Quercus variabilis seedlings to soil drought stress[J]. Acta Botanica Boreali-Occidentalia Sinica,2013,33(2):0364.
[14]	GATES D M. Biophysical ecology[M]. New York: Springer-verleg, 1980: 15.
[15]	刘静,王存诚.生物传热学[M].北京:科学出版社,1997:36. LIU Jing, WANG Chuncheng. Biological heat transfer [M]. Beijing: Science Press,1997:36.
[16]	陈景玲,王谦,朱秀红,等.番茄叶片和果实热容量的热平衡测定方法[J].农业工程学报,2012,28(2): 279. CHEN Jingling, WANG Qian, ZHU Xiuhong, et al. Specific heat of tomato leaf and fruit with heat balance method[J]. Transactions of the Chinese Society of Agricultural Engineering,2012,28(2):279.
[17]	谢会成,朱西存. 水分胁迫对栓皮栎幼苗生理特性及生长的影响[J].山东林业科技,2004.4:6. XIE Huicheng, ZHU Xicun. The effect of water stress on the photosynthetic characteristics and growth yield of oriental oak seedlings[J].Shandong Forestry Science and Technology,2004.4:6.
[18]	杨建伟,韩蕊莲,刘淑明,等.不同土壤水分下杨树的蒸腾变化及抗旱适应性研究[J]. 西北林学院学报,2004,9(3):7. YANG Jianwei, HAN Leilian, LIU Shuming, et at. Transpiration and drought resistance of poplar under different soil drought[J]. Journal of Northwest Forestry University,2004,9(3):7.
[19]	廖行,王百田,武晶,等. 不同水分条件下核桃蒸腾速率与光合速率的研究[J]. 水土保持研究,2007,14(4):30. LIAO Hang, WANG Baitian, WU Jing , et al. Study on transpiration rate and photosynthesis rate of Juglan sregia under different soil water contents[J]. Research of Soil and Water Conservation,2007,14(4):30.
[20]	王旭军,吴际友,廖德志,等. 响叶杨光合蒸腾和水分利用效率对光强及CO2浓度升高的响应[J]. 南京林业大学学报(自然科学版),2009,33(2):55. WANG Xujun, WU Jiyou, LIAO Dezhi, et al. Response of photosynthesis rate, transpiration rate and water using efficiency of Populus adenopoda to light intensity and elevated CO2 concentration[J]. Journal of Nanjing Forestry University (Natural Science Edition), 2009,33(2):55.
[21]	桑玉强,郭芳,张劲松,等.毛乌素沙地新疆杨蒸腾变化规律及其影响因素[J].林业科学,2009,45(9):66. SANG Yuqiang, GUO Fang, ZHANG Jinsong, et al. Variation in transpiration of Populus bolleana and the influence factors in Maowusu sandy area[J].林业科学,2009,45(9):66.
[22]	佟长福,郭克贞,史海滨,等.环境因素对紫花苜蓿叶水势与蒸腾速率影响的初步研究[J].农业工程学报, 2005,21(12):152. TONG Changfu, GUO Kezhen, SHI Haibin, et al. Preliminary study on the effect of environmental factor on leaf potential and transpiration rate of alfalfa[J]. Transactions of the Chinese Society of Agricultural Engineering, 2005,21(12):152.
[23]	于金凤,刘文兆,甘卓亭,等.黄土塬区苹果树蒸腾速率变化特征及其影响因子[J].干旱地区农业研究,2010, 28(4):59. YU Jinfeng, LIU Wenzhao, GAN Zhuoting, et al. The characteristics of apple tree transpiration rate and its influencing factors on the loess tableland region[J]. Agricultural Research in the Arid Areas,2010, 28(4):59.
[24]	罗永忠,成自勇.水分胁迫对紫花苜蓿叶水势、蒸腾速率和气孔导度的影响[J].草地学报,2011,19(2): 215 . LUO Yongzhong, CHENG Ziyong. Impact of water stress on leaf water potential, transpiration rate and stomatal conductance of alfalfa[J]. Acta Agrestia Sinica,2011,19(2): 215.
[25]	张喜英,裴冬,陈素英.用冠气温差指导冬小麦灌溉的指标研究[J].中国生态农业学报,2002,10(2):102. ZHANG Xiying, PEI Dong, CHEN Suying. Use of crop water stress index as indicators for scheduling irrigation in winter wheat[J]. Chinese Journal of Eco-Agriculture,2002,10(2):102.
[26]	SALEH T, JOSE L C, NEIL C H. Infrared thermometry to estimate crop water stress index and water use of irrigated maize in northeastern Colorado[J].Remote Sens. 2012, 4, 3619.
[27]	陈歆,刘贝贝,彭黎旭.土壤水分对槟榔幼苗净光合速率和蒸腾速率的影响[J].热带作物学报,2015,36(11):2034. CHEN Xin, LIU Beibei, PENG Lixu. Effects of different soil moisture on photosynthetic rate and transpiration rate of Areca catechu L. seedling[J].Chinese Journal of Tropical Crops,2015,36(11):2034.