Vegetation analysis based on plant associations and soil properties in natural forests

Document Type : Research article

Authors

1 Associate Prof., Islamic Azad University, Research and Science Branch

2 Associate Prof., University of Tehran

3 Assistant Prof., Research Institute of Forests and Rangelands

Abstract

     In natural ecosystems, site classification can be used as a model to determine the quality of forest ecosystems based on ecological factors. Therefore, vegetation analysis based on plant communities and soil properties was performed in Kheyroudkenar forest – Nowshahr. Based on Braun - Blanquet method and using ANAPHYTO software vegetation data were analyesed, and associations recognized. Morevere, ecological groups and differential species were determined based on phytosociological data using TWINSPAN. Afterwards, depending on one sample selected in each landform class, the area with differential species were recognized for soil study. Results showed thattwo communities constitute the major part of the study area, Rusco-Fagetum and Carpineto–Fagetum. Soil variables that played the most important role for expantion of Rusco-Fagetum associaton were depth, silt, P and pH, while in Carpineto–Fagetum important were clay, sand, Sp, N and C.

Keywords


دانشکده منابع طبیعی، دانشگاه تهران، 90 صفحه.
- حبیبی، ح.، 1353. بررسی تاثیر بافت خاک در میزان رویش راش ایران. نشریه دانشکده منابع طبیعی، دانشگاه تهران، شماره 31: 69-60.
- زمانی، خ.، 1375. بررسی خصوصیات فیزیکی و شیمیایی خاکها در ارتباط با رویشگاههای جنگلی در منطقه کردکوی استان گلستان. پایان‌نامه کارشناسی ارشد، دانشکده منابع طبیعی، دانشگاه تهران، 103 صفحه.
- ساجدی، ت.، 1381. بررسی تغییرات تیپ هوموس در جنگلهای خالص و آمیخته راش، سری چلیر جنگل خیرودکنار. پایان‌نامه کارشناسی ارشد، دانشکده منابع طبیعی، دانشگاه تهران، 137 صفحه.
- سرمدیان، ف. و جعفری، م.، 1380. بررسی خاکهای جنگلی ایستگاه تحقیقاتی آموزشی دانشکده منابع ‌طبیعی- دانشگاه تهران (خیرودکنار- نوشهر). مجله منابع طبیعی ایران، ویژه­نامه سال 1380، 103 صفحه.
- عصری، ی.، 1373. جامعه­شناسی گیاهی. موسسه تحقیقات جنگلها و مراتع کشور، نشریه شماره 34، 285 صفحه.
- عطری، م.(مترجم)، 1376. فیتوسوسیولوژی (جامعه­شناسی گیاهی). انتشارات موسسه تحقیقات جنگلها و مراتع کشور، 384 صفحه.
 
- Braun-Blanquet, J., 1932. Plant sociolgy. The study of plant communities, Mc Grow – Hill,  New York and London, 438p.
- Daubenmire, R.F.,1952. Forest vegetation of northern Idaho and adjacent Washington and its bearing on concepts of vegetation classification, J. Ecology (Monographs), 22:301-330.
- Ellenberg, H.1954. Über einige Fortschritte der kausalen Vegetationskunde, Vegetatio 5-6 :199-211.
- Ellenberg, H., Weber, H.E., Dull, R., Wirth, V., Werner, W. and Paulissen, D.,1992.
         Zeigerwerte von Pflanzen in Mitteleuropa. Goltze, Goettingen, Scripta Geobotanica 18, 258p.
- Ge´gout J. and Krizova E., 2003. Comparison of indicator values of forest understory plant species in Western Carpathians (Slovakia) and VosgesMountains (France). For. Eco. and Manage., 182: 1–11.
- Legendre, P., 1998. Numerical Ecology. Elsevier Scientific Publishing Company, Amesterdam. 853p.
- Muller- Dombois, D. and Ellenberg, H., 1974. Aims and methods of vegetation ecology. John & Sons Inc., New York, 547p.
- Noirfalise, A., 1984. Forêts et stations Forestières en Belgique, les presses Agronomiques de Gembloux, GemblouxUniversity Press, 250p.
- Rogister, J.E., 1978. A contribution to an ecological classification of forest plant association (in Dutch with English summary), Werken, Reeks A 16, 157p.
- Rogister, J.E., 1985. The main forest plant association of Flanders (in Dutch with English summary), Werken, Reeks A26, 106p.
- Sioen, G., Neirynuck, J., Maddelein, D. and Muys, B., 1994. Site classification in a mixed hardwood forest (Hallerbos, Belgium) with a homogeneous ground vegetation dominated Hyacinthoides Non – Scripta, Silva Gandavensis, 59: 15 – 28.
- Zas, R. and Alonso M., 2002. Understory vegetation as indicators of soil characteristics in northern Spain. For. Eco. and Manage., 171: 101-111.