Scholarly record
THE RELATIONS BETWEEN VEGETAL ORGANISMS AND THE WATER FACTOR
Abstract
This study aims to highlight relations emerging between vegetal organisms and water factor. The water input in an ecosystem is realized mainly by: precipitations, water vapors from the atmosphere, fog, dew, underground water, snow melting, springs, river flooding, high flow. The water losses from the ecosystem come from evaporation, transpiration and infiltration down to depths inaccessible to plants. In delineating the relations emerging between plants and the water environment, the roots system has an important role and a characteristic form, depending on species, substratum and plant dimensions. After having studied the specialized bibliography and research out in the field, we have identified several categories of vegetal organisms considering the water factor. Following the research out in the field we have been able to make a correlation between the ecological conditions and the categories of vegetal organisms taking into account their relation to water. For a more efficient use of the water available, the plants present two major types of adaptations: a. for a better access to the existing sources, for example, wide-spread or very long roots, leaves directing the water to the root, adaptations permitting the direct use of dew drops or fog; b. to reduce the losses by transpiration, morpho-physiological changes. Following the research out in the field we have been able to classify and describe the relations between the water factor and the vegetal organisms (including seed dissemination by water: the plants living next to a water environment have fruits or seeds presenting adaptations for floating, for example air-bearing tissues, and their seeds are protected from rotting: the nenuphar (water-lily) seed is protected by a wax layer). Thus, in relation to the water input demands, plants can be grouped into several categories: hydrophilic, hygrophilic, mesophilic, ultra-hygrophilic, xerophilic.
Publication Impact Profile
Publication details
References11
Muică, Cristina, Geacu, S., Sencovici, Mihaela, Biogeografie generală, Ed. Transversal, Târgoviște, România, 2006, p. 313;
Sencovici, Mihaela, Biodiversity conservation in Muntenia, Analele Univ. Hyperion, România, tomul VIII- IX, 2008, pp. 166-169;
Muică, Cristina, Sencovici, Mihaela, Some aspects concerning the conservation of biodiversity in România, Analele Univ. Hyperion, România, tomul VI-VII, 2007, pp. 42-50;
Muică, Cristina, Sencovici, Mihaela, Dumitrașcu C., Biogeografie – îndrumător pentru lucrări de laborator și practică de teren, Ed. Transversal, Târgoviște, România, 2004, p.91;
Muică, Cristina, Sencovici, Mihaela, Floristic diversity and human pressure in the Subcarpathians, Analele Univ. Hyperion (Annals of Hyperion University), Romania, tome IV-V, 2006-2007;
Sencovici, Mihaela, Studiul geografic al mediului în câmpia Târgoviștei (A Geographic Study of the Environment in The Plain of Târgoviște), Editura Transversal, Târgoviște, România, 2010, p. 283;
Sencovici, Mihaela, Vegetal communities in Dâmbovița County, Analele Univ. Valahia (Annals of Valahia University), România, tome 9, 2010, pp. 43-51;
Sanda V., Öllerer K., Burescu P., Fitocenozele din România, Ed. ARS Docendi, București, România, 2008;
Tutin T. G., Burges N. A., Chater A. O., Edmondson J. R., Heywood V. H., Moore D. M., Valentine D. H., Walters S. M., Webb D. A., Flora Europaea, Vol. 1, Ed. II, Cambridge University Press, Great Britain, 1993;
Marian M., Săudan L., Roșca O., Blidar C. F., Vegetation aspect in the Lapus Valley, Analele Universității din Oradea, Fascicula Biologie, vol XIV: 29 - 36, Oradea, România, 2007;
Walter H., Vegetația pământului în perspectivă ecologică, Edit. Științifică, București, România, 1974.
View or Download full articleAccess options
SWS access login
Login as SWS Scientific CommitteeLogin as SWS Scientific PartnerLogin as SWS AuthorAuthors and approved SWS contributors will read and export their own linked papers after identity matching by SWS profile, email and SGEM GlobalID.
For librarian assistance: [email protected]
Purchase Instant Access
- Article can be downloaded after successful payment.
- Article may be used according to SWS library access terms.
- Article cannot be redistributed.
