| Yazarlar |
Doç. Dr. Ferhat KARA
Kastamonu Üniversitesi, Türkiye |
Latif Kalın
Canik Başarı Üniversitesi, Türkiye |
|
Edward Loewensteın
|
| Özet |
| The thinning of stream buffer zones (SBZs) is gaining popularity as a silvicultural management practice in order to reduce the risk of wildfire and insect hazard, provide economic return, and improve the effectiveness of SBZs. In this study, streamflow over a 1-year period was monitored at 2 small paired watersheds (treated vs. reference). The short-term impacts of a partial cutting within a SBZ as well as the relative effects of pastoral, forested, and clearcut areas on changes in downstream hydrology were examined. Upstream pastoral areas had a higher water yield than downstream forested sections during the no-harvest (calibration) period of 6 months. The partial cut (about 50% of the basal area) within the SBZ changed the hydrologic pattern by remarkably increasing the water yield on the treated downstream sections during the 6-month-long postharvest period. The harvest operation also caused an increase in direct runoff at 2 downstream sections, WT2 and WT3 (~200% and ~100%, respectively). No significant changes were observed in the water yield pattern of the control watershed. Because harvested areas within the SBZs constitute a fraction of the monitored sub-watersheds and only partial harvesting (~50% of the basal area) was implemented, the observed increase in flow at the treated downstream sections (100% and 250%, respectively) is unprecedented. The partial harvesting within the SBZs also resulted in a significantly flashier hydrological system. Because silvicultural treatments are part of regular, repeated management operations, these short term (in this study, 6-month-long) but substantial changes in water yield, direct runoff, and flashiness could have important implications for water quality, water resources, and downstream biota. |
| Anahtar Kelimeler |
| Partial cutting | Streamside buffer zone | Water yield | Watershed |
| Makale Türü | Özgün Makale |
| Makale Alt Türü | SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale |
| Dergi Adı | TURKISH JOURNAL OF AGRICULTURE AND FORESTRY |
| Dergi ISSN | 1300-011X |
| Dergi Tarandığı Indeksler | SCI-Expanded |
| Makale Dili | İngilizce |
| Basım Tarihi | 01-2015 |
| Cilt No | 39 |
| Sayı | 5 |
| Sayfalar | 764 / 774 |
| Doi Numarası | 10.3906/tar-1408-115 |
| Makale Linki | http://journals.tubitak.gov.tr/agriculture/issues/tar-15-39-5/tar-39-5-13-1408-115.pdf |
| Atıf Sayıları | |
| WoS | 4 |
| SCOPUS | 4 |
| Google Scholar | 5 |
