Laurel forests in Tenerife, Canary Islands: The annual course of sap flow in Laurus trees and stand

被引:46
作者
Jimenez, MS
Cermak, J
Kucera, J
Morales, D
机构
[1] MENDEL AGR & FOREST UNIV, INST FOREST ECOL, BRNO 64400, CZECH REPUBLIC
[2] LAB ECOL MEASUREMENT SYST INC, BRNO 62100, CZECH REPUBLIC
关键词
D O I
10.1016/0022-1694(95)02952-4
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
Sap flow rate was continuously measured in six trees of Laurus azorica at the experimental site of laurel forest in Agua Garcia mountains, Tenerife, Canary Islands, over 1 year from June 1993 to May 1994. Sample trees were of different sizes and covered the whole range of species. A sigmoid-like relationship based on basal area was applied to scale up the transpiration data from sample trees to the whole stand. Maximum transpiration for the stand was 7 mm day(-1). There was strong competition among the medium-sized trees in the high-density stand. The annual course of transpiration was very variable, owing to weather conditions, and was mainly controlled by the evaporative conditions. Contrasting with conditions in colder regions of the world with pronounced seasons, relatively high transpiration persisted over the mild winter. The annual total of transpiration was thus significantly higher, amounting to 636 mm year(-1) (about 500 mm from April to October). Nevertheless, the transpiration represented only a small portion of stand water balance (65% of potential evaporation and 80% of annual precipitation in the open).
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页码:307 / 321
页数:15
相关论文
共 42 条
[1]  
ASCHAN D, 1994, VIERAEA, V23, P125
[2]   WATER TRANSFER IN A MATURE OAK STAND (QUERCUS-PETRAEA) - SEASONAL EVOLUTION AND EFFECTS OF A SEVERE DROUGHT [J].
BREDA, N ;
COCHARD, H ;
DREYER, E ;
GRANIER, A .
CANADIAN JOURNAL OF FOREST RESEARCH, 1993, 23 (06) :1136-1143
[3]   XYLEM WATER-FLOW IN A CRACK WILLOW TREE (SALIX-FRAGILIS L) IN RELATION TO DIURNAL CHANGES OF ENVIRONMENT [J].
CERMAK, J ;
JENIK, J ;
KUCERA, J ;
ZIDEK, V .
OECOLOGIA, 1984, 64 (02) :145-151
[4]   NEW METHOD OF SAP FLOW-RATE DETERMINATION IN TREES [J].
CERMAK, J ;
DEML, M ;
PENKA, M .
BIOLOGIA PLANTARUM, 1973, 15 (03) :171-178
[5]   SAP FLOW-RATE AND TRANSPIRATION DYNAMICS IN THE FULL-GROWN OAK (QUERCUS-ROBUS L) IN FLOODPLAIN FOREST EXPOSED TO SEASONAL FLOODS AS RELATED TO POTENTIAL EVAPO-TRANSPIRATION AND TREE DIMENSIONS [J].
CERMAK, J ;
ULEHLA, J ;
KUCERA, J ;
PENKA, M .
BIOLOGIA PLANTARUM, 1982, 24 (06) :446-460
[6]   THE COMPENSATION OF NATURAL TEMPERATURE-GRADIENT AT THE MEASURING POINT DURING THE SAP FLOW-RATE DETERMINATION IN TREES [J].
CERMAK, J ;
KUCERA, J .
BIOLOGIA PLANTARUM, 1981, 23 (06) :469-471
[7]   RAPID RESPONSE OF LARGE, DROUGHT-STRESSED BEECH TREES TO IRRIGATION [J].
CERMAK, J ;
MATYSSEK, R ;
KUCERA, J .
TREE PHYSIOLOGY, 1993, 12 (03) :281-290
[8]  
CERMAK J, 1991, DEV AGR MANAGED FORE, P397
[9]  
CERMAK J, 1982, MEASUREMENT EVALUATI
[10]  
CERMAK J, 1984, MEASUREMENT EVALUATI