Abstract
Sap flow and environmental conditions were monitored at two Eucalyptus (Eucalyptus urophylla S.T. Blake) plantations at Hetou and Jijia, located in Leizhou, Zhanjiang, Guangdong Province. It was found that daily sap flux density (SFD) of Eucalyptus was closely related to daily atmospheric vapor pressure deficit (VPD) (R 2=0.76, P=0.01 at Hetou and R 2=0.7021, P=0.01 at Jijia) at both sites. No significant relationship existed between daily SFD and mean daily air temperature at both sites. Daily SFD varied with wind speed Y=−17585X 3+15147X 2−1250.7X+2278.4 (R 2=0.68; P=0.01) at Hetou and Y=−101.67X 3−1.65X 2−376.4X+1914.8 (R 2=0.40, P=0.05) at Jijia, where Y was daily SFD, X was daily wind speed. Experimental observations yielded the following data: (1) the critical lower and upper daily VPD threshold were 0 and 2 kPa, within which daily SFD varied from 540±70 L/(m2·d) to 4739±115 L/(m2·d) at Hetou site, from 397±26 L/(m2·d) to 3414±191 L/(m2·d) at Jijia site; (2) Diurnal SFDs at Hetou site were much higher under low relative humidity (<30%) and slightly lower under high relative humidity (>80%) compared with those at the Jijia site; (3) The upper and lower threshold of daily and diurnal RAD for the optimal water use of E. urophylla plantations were 18±2.7 and 2±1 MJ/(m2·d), 669 and 0 J/(cm2·h) during the observation period.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Calder, I.R., Rosier, P.T.W., Prasanna, K.T., Parameswarappa, S., 1997. Eucalyptus water use greater than rainfall input — a possible explanation from southern India. Hydrol. Earth System Sci., 1:246–256.
Cienciala, E., Kucera, J., Lindroth, A., Čermák, J., Grelle, A., Halldin, S., 1997. Canopy transpiration from a boreal forest in Sweden during a dry year. Agr. For. Meteorol., 86:157–167.
Daudet, F.A., Le, X.R., Sinoquet, H., Adam, B., 1999. Wind speed and leaf boundary layer conductance variation within tree crown-Consequences on leaf-to-atmosphere coupling and tree functions. Agr. For. Meteorol., 97:171–185.
Devitt, D.A., Piorkowski, J.M., Smith, S.D., Cleverly, J.R., Sala, A., 1997. Plant water relations of Tamarix ramosissima in response to the imposition and alleviation of the soil moisture stress. J. Arid Environ., 36: 527–540.
Du, Z.C., Yang, Z.G., 1995. Comparative study on the characteristics of photosynthesis and transpiration in Aneurolepidium chinensis of different soil types. Acta Bot. Sin., 37(1):66–73.
Dye, P.J., 1996. Response of Eucalyptus grandis trees to soil water deficits. Tree physiol., 16:233–238.
Engel, V.C., Stieglitz, M., Willians, M., Griffin, K.L., 2002. Forest canopy hydraulic properties and catchment water balance: observations and modellings. Ecol. Model., 154:263–288.
Granier, A., Biron, P., Lenoine, D., 2000. Water balance, transpiration and canopy conductance in two beech stands. Agr. For. Meteorol., 100:291–308.
Kallarackal, J., 1992. In: Calder, I.R., Hall, R.L., Adlard, P.G. (Eds.), Water Use of Eucalyptus in Kerala. Growth and Water Use of Forest Plantations. Wiley, Chichester, p. 290–297.
Karl, T.R., Knight, R.W., Plummer, N., 1995. Trends in high frequency climatic variability in the twentieth century. Nature, 377:217–220.
Köstner, B., Biron, P., Siegwolf, R., Granier, A., 1996. Estimates of water vapor flux and canopy conductance of Scots pine at the tree level utilizing different xylem sap flow methods. Theor. Appl. Climat, 53:105–113.
Lagergren, F., Lindroth, A., 2002. Transpiration response to soil moisture in pine and spruce trees in Sweden. Agr. For. Meteorol., 112:67–85.
Montero, J.I., Antón, A., Lorenzo, P., 2001. Transpiration from geranium grown under high temperatures and low humidities in greenhouses. Agr. For. Meteorol., 107: 323–332.
Myers, B.J., Benyon, R.G., Theiveyanathan, S., Criddle, R.S., Smith, C.J., Falkiner, R.A., 1998. Response of effluent-irritated Eucalyptus grandis and Pinum radiata to salinity and vapor pressure deficits. Tree Physiol., 18:565–573.
Oltchev, A., Cermak, J., Gurtz, J., Tishenko, A., Kiely, G., Nadezhdina, N., Zappa, M., Lebedeva, N., Vitvar, T., Albertso, J.D., Tatarinov, F., Tishenko, D., Nadezhdin, V., Kozlov, B., Ibrom, A., Vygodskaya, N., Gravenhorst, G., 2002. The response of the water fluxes of the boreal forest region at the Volga’s source area to climatic and land-use changes. Physics and Chemistry of the Earth, 27:675–690.
Pražák, J., Šír, M., Tesař, M., 1994. Estimation of plant transpiration from meteorological data under conditions of sufficient soil moisture. J. Hydrol., 162:409–427.
Tenhunen, J.D., Valentini, R., Köstner, B., Zimmermann, R., Granier, A., 1998. Variation in forest gas exchange at landscape to continental scales. Ann. Sci. For., 1–2: 1–11.
Welander, N.T., Ottosson, B., 2000. The influence of low light, drought and fertilization on transpiration and growth in young seedlings of Quercus robur L. For. Ecol. Manage., 127:139–151.
Yu, Z.Y., Wang, Z.H., 1995. Ecology of the rehabilitation of vegetation on tropical coastal eroded land in Guangdong, China. J. Environ. Sci., 7:74–84.
Yu, Z.Y., Wang, Z.H., He, S.Y., 1994. Rehabilitation of eroded tropical coastal land in Guangdong, China J. Trop. For. Sci., 7:28–38.
Zhou, G.Y., Morris, J.D., Yan, J.H., Yu, Z.Y., Peng, S.L., 2001. Hydrological impacts of reafforestation with eucalyptus and indigenous species: a case study in southern China. For. Ecol. Manage., 5741:1–14.
Zhou, G.Y., Huang, Z.H., Morris, J., Li, Z.A., Collopy, J., Zhang, L.N., Bai, J.Y., 2002. Radial Variation in Sap Flux Density as a Function of Sapwood Thickness in Two Eucalyptus (Eucalyptus urophylla S.T. Blake) Plantations. Acta. Bot. Sin. 44(12):1418–1424.
Author information
Authors and Affiliations
Additional information
Project supported by Knowledge Innovation Funds from Chinese Academy of Sciences (Nos. KSCX2-SW-120, KZCX1-SW-01-01A3) and the Key Project of Guangdong Natural Science Foundation (No. 010567), China
Rights and permissions
About this article
Cite this article
Yin, Gc., Zhou, Gy., Morris, J. et al. Sap flow response of Eucaylyptus (Eucalyptus urophylla) to environmental stress in South China. J. Zheijang Univ.-Sci. 5, 1218–1225 (2004). https://doi.org/10.1631/jzus.2004.1218
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1631/jzus.2004.1218