Monitoring the physical and chemical properties of the soil in relation to the oak decline phenomenon in the Zagros forests (Case study: Chaharmahal and Bakhtiari province) | ||
| نشریه جنگل و فرآورده های چوب | ||
| Volume 77, Issue 2, September 2024, Pages 127-137 PDF (740.67 K) | ||
| Document Type: Research Paper | ||
| DOI: 10.22059/jfwp.2024.372302.1283 | ||
| Authors | ||
| Hassan Jahanbazy Goujani1; Mohammad Matinizadeh2; Mehdi Pourhashemi3; Yaghoub Iranmanesh1; Mahmood Talebi4; Ali Morshedi5; Mehdi Zandebasiri* 1 | ||
| 1Research Division of Natural Resources, Chaharmahal and Bakhtiari Agricultural and Natural resources Research and Education Center, AREEO, Shahrekord, Iran. | ||
| 2Research Institute of Forest and Rangelands, Agricultural Research, Education and Extension Organization, Tehran, Iran. | ||
| 3Research Institute of Forest and Rangelands, Agricultural Research, Education and Extension Organization, Tehran, Iran. Head of Forest Research Laboratory (RIFR), Tehran, Iran | ||
| 4Research Division of Natural Resources, Chaharmahal and Bakhtiari Agricultural and Natural Resources Research and Education Center, AREEO, Shahrekord, Iran. | ||
| 5Soil and Water Research Department, Chaharmahal and Bakhtiari Agricultural and Natural resources Research and Education Center, AREEO, Shahrekord, Iran. | ||
| Abstract | ||
| This study was conducted in the Zagros forests to investigate and monitor the status of elements in the soil and their absorption in areas with and without oak decline. Two plots, each with 100 trees, were randomly established in the south direction in the areas of "Sama Castle" and "White Mud," representing the decline and control (without decline) sites. In the oak decline plot, five healthy and five declining trees were selected, while only five healthy trees were chosen in the control plot. Selection of healthy and declining trees in the first year was done selectively and with proper distribution throughout the sample. In the following years, soil and leaf samples were collected from the selected trees. Soil samples were collected under the tree crowns at two depths (0-30 cm and 30-60 cm). Additionally, 20 leaves per tree were sampled in late July and early August. The results showed that the amount of phosphorus in the leaves of trees in the both decline and control sites was significantly different at a 99% confidence level. As the intensity of drought increased, the amount of phosphorus in the leaves also increased. Soil moisture was estimated at 5.74% in the decline site and 7.14% in the control site, with this difference being statistically significant. The amount of calcium in the soil of the control area was approximately 1.5 times greater than in the area experiencing decline. The results of this research, focusing on soil characteristics related to oak decline, can provide important data for the oak decline information system in the Zagros forests of Iran. | ||
| Keywords | ||
| Forest soil; Nutrients; Quercus brantii; Stress | ||
| References | ||
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