عنوان مقاله :
مقايسه ويژگي هاي كمي توده هاي جنگلي دو منطقه حفاظت شده و غيرحفاظتي ارسباران
عنوان به زبان ديگر :
A Comparison of Forest Stand Quantitative Factors in Protected and Nonprotected Areas in Arasbaran Forests
پديد آورندگان :
عليجانپور، احمد نويسنده ,
اطلاعات موجودي :
فصلنامه سال 1383
رتبه نشريه :
فاقد درجه علمي
كليدواژه :
خط نمونه , Arasbaran protected area , منطقه غيرحفاظتي ارسباران , كشاورزي , ويژگي هاي كمي توده هاي جنگلي , منطقه حفاظت شده ارسباران , Arasbaran nonprotected area , Line sample , Forest stands quantitative factors
چكيده لاتين :
In this research, a part of forest stand in two protected and nonprotected areas have been compared for quantitative factors. Initially the similarity of these stands using aerial photographs in 1: 20000 scale of 1968 was studied and the similar stands were chosen. Then 92 line samples with a network size of 150 * 300 in in nonprotected parts of stand are sampled out and compared with other 92 line samples recorded from protected areas. From quantitative factors, basal area of stand and number of trees perhectare were determined. The number of trees and basal area in protected area was significantly higher than that in nonprotected forest stands.
عنوان نشريه :
منابع طبيعي ايران - دانشكده منابع طبيعي كرج
عنوان نشريه :
منابع طبيعي ايران - دانشكده منابع طبيعي كرج
اطلاعات موجودي :
فصلنامه با شماره پیاپی سال 1383
كلمات كليدي :
#تست#آزمون###امتحان
