GERMINATION AND REGENERATION MECHANISMS IN MEDITERRANEAN DEGENERATE FORESTS

被引:34
作者
BACILIERI, R
BOUCHET, MA
BRAN, D
GRANDJANNY, M
MAISTRE, M
PERRET, P
ROMANE, F
机构
[1] I.N.RA., Cestas, F-33610, Pierroton
[2] CEFE-CNRS, Montpellier, F-34033
[3] INTA‐EEA Bariloche, S.C. de Bariloche, 8400
关键词
CASTANEA-SATIVA; PINUS-PINASTER; QUERCUS-ILEX; QUERCUS-PUBESCENS;
D O I
10.2307/3236110
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Germination and developmental behaviour during juvenile stages are of importance in relation to succession mechanisms acting on plant communities. This is particularly so in the Mediterranean region, where the climatic summer drought causes stress. We investigated and compared germination and development of four tree species in two parts of the French Mediterranean region where the original dominant tree species (Quercus pubescens) has been largely replaced by Quercus ilex in the southern part, and Castanea sativa in the northern part. Observed differences in germination rates and developmental behaviour, especially shoot:root ratio and the role of water supply, suggest that other species may eventually replace the current dominant species.
引用
收藏
页码:241 / 246
页数:6
相关论文
共 34 条
[1]  
Aschmann H., Distribution and peculiarity of Mediterranean ecosystems, Mediterranean type ecosystems: origin and structure, pp. 11-19, (1973)
[2]  
Aschmann H., A restrictive definition of Mediterranean climates, Bull. Soc. Bot. Fr. 131, Act. Bot., 2-4, pp. 21-30, (1984)
[3]  
Bonnet-Masimbert M., La germination des graines de Pinus pinaster. I. Mise en evidence du role de la lumiére, Annales des Sciences Forestières, 32, 2, pp. 93-112, (1975)
[4]  
Bran D., Lobreaux O., Maistre M., Perret P., Romane F., Germination of Quercus ilex and Quercuspubescens in a Quercus ilex coppice. Long‐term consequences, Vegetatio, 87, pp. 47-50, (1990)
[5]  
Brown R.T., Influence of naturally occurring compounds on germination and growth of jack pine, Ecology, 48, pp. 542-546, (1967)
[6]  
Camus A., Monographie surlechätaignier, Encyclopedic économique de sylviculture, (1929)
[7]  
Collins S.L., Good R.E., The seedling regeneration niche: habitat structure of tree seedlings in an oak‐pine forest, Oikos, 48, pp. 89-98, (1987)
[8]  
Connell J.H., Slatyer R.O., Mechanisms of succession in natural communities and their role in community stability and organisation, Am. Nat., 3, pp. 1119-1144, (1977)
[9]  
Coutts M.P., Growth of Sitka spruce seedlings with roots divided between soils of unequal matric potential, New Phytol., 92, pp. 49-62, (1982)
[10]  
Daget P., Introduction ä une théorie genérale de la méditerranéité, Bull. Soc. Fr. 131, Act. Bot., 2-4, pp. 31-36, (1984)