Preliminary results of species trials at Asalem Forests; The world most important species of coniferous

Abstract

According to this project , we should plant 30 species and 61 provenances in each рап of Asdlem forest zone, regarding to the reason that we couldnt, plant all the species and provenances in the same time. So decided to plant them gradually and with different phases. The present article included three project at different three height zone in Gillan province. In Asalem forest at the height of lower zone 450 meter thats includes Seyabil project which called No 1 , 13 species and provenances have been cultivated and in the middle zone which is suitated in asalem forest in Nav project at the height of 1050 meter, 15 species and provenance have been cultivated , and in upper zone at the height of 1750 meter in N av project in Asalem species and provenances have been 9 cultivated . In each zon projects being evaluated througth Random Ыосk method with in randomize plot in three 2metre,in each plot we used 100 repeatation in а distance 2xsamples treatments in each plot. Distance between Ыocks and treatments is 3/5 metre. In this study some important factors like , annual surviral , annual height and collar diametre in evry five ye~rs being evaluated and in each treatment two side rows had been as а protector and 36 samples only in the middle parts of each plot evaluated. According to this assesment that has been completed shown, these Lower zone: Pinus nigra var. calabrica, France; Pinus nigra var. pallaziana, Turkey; Pinus taede, USA; Pinus ponderosa, USA; Pinus nigra var. austriaca, Austria; Pseudotsuga menziesii, USA (Oregon); Pseudotsuga menziesii, USA (California); Abies equitrojani, Turkey; Pinus sylvestris, Turkey; Pinus nagra var. austriaca, Austria; Abies nordmanniana, Turkey; Abies cilicica, Syria; Pinus nigra Var. calabrica, France; Pinus nigra var. pallasiana, Turkey; Upper zones: Picea abies, Iran (Kalardasht); Pinus sylvestris, Turkey; Pinus sylvestris, Spain; Larix leptolepis, Japan; Pinus ponderosa, USA; Pseudotsuga menziesii, USA (Oregon).

Keywords

• Needle-leaved
• adaptation
• Gillan
• Asalem forest؛
• bottom land
• middle land, upper land