Accuracy Assessment of Kriging Methods for Zoning of Density, Canopy and Tree Species Diversity in Zagros forests (Case study: Arghavan Reservoir, Ilam Province)

Subject Areas : Journal of Plant Ecophysiology

جواد میرزایی ¹ , نیشتمان خسروپور ² , شایسته غلامی ³

1 - دانشگاه ایلام
2 - دانشگاه ایلام
3 - دانشگاه رازی

Received: 2015-04-19 Accepted : 2015-09-30 Published : 2016-12-01

Keywords: Diversity, Kriging, Zagros forests, destiny,

Abstract :

There are little information about the spatial and temporal distributions of destiny, cover and diversity of tree species in Zagros forests. While, These information’s are very useful to managing decisions of forest managers. This study was performed to study the spatial and temporal distributions of destiny, cover and diversity of tree species in the forests of Arghavan valley in the North of Ilam (200 hectare) using Kriging method. Sampling were done on equal transects that were in 300 meter far from each other. Regarding to appropriate placing structure, experimental variorums were calculated to variables of destiny, cover, diversity, evenness and richness. Processing of model was performed to empirical logograms by common Kriging method and blocks of 20 × 20. The results showed that Kriging design can be provide to variables of covering, destiny, variety and richness. The results also indicated that Kriging method is not useful to provide useful management ground maps.