Adaptation of Eastern Red Cedar (Juniperus virginiana) in Chamestan – Mazandaran (North of Iran)

Document Type : Scientific article

Authors

Member of Scientific Board, Research Center of Agricultural and Natural Resources of Mazandaran Province

Abstract

     In order to investigate the adaptation of Juniperus species, two plantations of Eastern Red cedar that were 10 years old (with 5285 m2 area) and at spacing of 2×2.5m and 22 years old (with 1600 m2 area) and at spacing of 4×4m were chosen in Chamestan experimental station in Mazandaran province.
 In 2003, data for survival, d.b.h, height and quality were collected. Results could be summarized as following:
1- 10 years old trees showed generally 66.8 % survival, 4.3m in height, 6.2cm in d.b.h. Mean annual height and diameter increment were 43cm and 6.2 mm, respectively. The highest mortality rate (21.4%) was recorded in the third year of plantation. The highest rate of annual height growth (78 cm) was recorded in the 5th  year and the highest rate of annual diameters increment (10mm) in the 10th year after plantation.
2- 22 years old trees showed 98% survival, 7.28m in height and 18.6cm in d.b.h. Mean annual height and diameter increment were 33cm and 8.5mm, respectively. Stem quality in two plantations showed that 90% of trees have quality of first grade. In general, Eastern Red Cedar could be introduced as promissed species for plantation in suitable areas.
 

Keywords

References

- ابراهیمی، ع. و مختاری، ج.، 1373. ایستگاه تحقیقات جنگل و مرتع چمستان (نور) از آغاز تا امروز. انتشارات  مرکز تحقیقات منابع طبیعی مازندران. 50 صفحه.
- بی‌نام، 1382. مرکز تحقیقات کشاورزی و منابع طبیعی استان گیلان. طرح تحقیقاتی بررسی امکان تولید چوب مداد در ایران، یادداشت‌های شخصی. 
- جوانشیر، ک.، 1360. تحقیق درباره تولید بذر و نحوه رویاندن آن در درختان ارس « Juniperus » بمنظور احیای جنگل‌های ارس. انتشارات مؤسسه تحقیقات جنگل‌ها و مراتع، نشریه شماره 25، 37 صفحه.
- زارع، ح.، 1380. گونه‌های بومی و غیربومی سوزنی برگ درایران. تحقیقات جنگل‌ها و مراتع. انتشارات شماره 271، 498 صفحه.
- مصطفی نژاد، س.ر.، 1382. گزارش بازدید و یادداشتهای شخصی از منطقه لاجیم مازندران. مرکز تحقیقات کشاورزی و منابع طبیعی مازندران.
- Baker, W. L., 1972. Eastern forest insects. U.S. Department of Agriculture, Miscellaneous publication 1175. WashingtonDC. 642 p.
- Ferguson, E.R., Lawson, E.R., Maple, W.R., and Mesavage, C., 1968. Managing eastern red cedar. USDA Forest Service, Southern forest experiment station, New Orleans, LA. Research Paper No- 37, 14p.
- Lawson, E. R., 1985. Eastern red cedar- an American wood. USDAForest service, FS – 260 . Washington, DC. 7 p.
- Van Haverbeke, D. F., and C. W. Comer. , 1985. Effects of treatment and seed source on germination of eastern red cedar seed. USDAForest Service, Rocky MountainForest and Range Experiment Station. Fort Collins, CO. Research paper RM-263, 7 p.

Files

Share

How to cite

Statistics