ANALYSIS HOLDRIDGE LIFE ZONES VIA GIS


Tekin M. K., Koç T.

INTERNATIONAL SYMPOSIUM ON GIS APPLICATIONS IN GEOGRAPHY & GEOSCIENCES(18-21 OCTOBER, 2017), Çanakkale, Turkey, 18 - 21 October 2017, no.307, pp.175

  • Publication Type: Conference Paper / Summary Text
  • City: Çanakkale
  • Country: Turkey
  • Page Numbers: pp.175
  • Van Yüzüncü Yıl University Affiliated: Yes

Abstract

ABSTRACT

The aim this study is analysis Turkey's vegetation types based on the Holdridge life zones (HLZ) method by Geographic Information System (GIS). In the HLZ approach, the related vegatation types are determined by long-term climate conditions. That’is, the life zones are determined by using the average precipitation, bio-temperature and potential evaporatranspiration ratio. Monthly resolution data values used in the study were obtained from the 242 stations of theTurkish State Meteorological Service from 1970 to 2016. The missing values were completed by kriging method developed a Fortran 95 source code. The results were mapped by Archinfo, a GIS software. According to the results, 12 HLZ classeses were obtained, among which the most commons are "Cool Temperate Steppe, Warm Temperate Dry Forest, Cool Temperate Moist Forest, Lower Montane Dry Forest and Montane Moist Forest". The "cool temperate steppe" life zone is seen in almost every region of the country; the "warm moist dry forest" life zone is mostly seen in the Aegean region of our country, Trakya division of Marmara region and in some parts of Southeast Anatolia. In addition, the "cool temperate rain forest" and the "cool temperate moist forest" life zone are mostly seen in the Black Sea coasts of the country. On the other hand, the "lower montane dry forest" and "lower montane moist forest" life zones are seen in the Mediterranean coasts. The northern and the Hakkari area of the country seem "montane moist forest" and "montane rainy forest". When all these results were examined in detail and compared with previous studies in the literature, it was seen that some of the habitats were shifting due to possible effects of climate change.

 

Key words: Climate; Classification; GIS; Holdridge; Turkey; Vegetation