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- Title
Temperature profile in apricot tree canopies under the soil and climate conditions of the Romanian Black Sea Coast.
- Authors
Paltineanu, Cristian; Septar, Leinar; Chitu, Emil
- Abstract
The paper describes the temperature profiles determined by thermal imagery in apricot tree canopies under the semi-arid conditions of the Black Sea Coast in a chernozem of Dobrogea Region, Romania. The study analyzes the thermal vertical profile of apricot orchards for three representative cultivars during summertime. Measurements were done when the soil water content (SWC) was at field capacity (FC) within the rooting depth, after intense sprinkler irrigation applications. Canopy temperature was measured during clear sky days at three heights for both sides of the apricot trees, sunlit (south), and shaded (north). For the SWC studied, i.e., FC, canopy height did not induce a significant difference between the temperature of apricot tree leaves (Tc) and the ambient air temperature (Ta) within the entire vertical tree profile, and temperature measurements by thermal imagery can therefore be taken at any height on the tree crown leaves. Differences between sunlit and shaded sides of the canopy were significant. Because of these differences for Tc-Ta among the apricot tree cultivars studied, lower base lines (LBLs) should be determined for each cultivar separately. The use of thermal imagery technique under the conditions of semi-arid coastal areas with low range of vapor pressure deficit could be useful in irrigation scheduling of apricot trees. The paper discusses the implications of the data obtained in the experiment under the conditions of the coastal area of the Black Sea, Romania, and neighboring countries with similar climate, such as Bulgaria and Turkey.
- Subjects
BLACK Sea Coast (Bulgaria); BLACK Sea Coast (Romania); APRICOT; EFFECT of temperature on plants; SOILS &; climate; LEAF temperature; SPRINKLER irrigation; CHERNOZEM soils
- Publication
International Journal of Biometeorology, 2016, Vol 60, Issue 3, p401
- ISSN
0020-7128
- Publication type
Article
- DOI
10.1007/s00484-015-1037-3