تأثیر جوامع گیاهی جنگل آموزشی-پژوهشی دارابکلا بر ذخیره کربن در خاک و زی‌توده روزمینی

نوع مقاله : علمی - پژوهشی

نویسندگان

1 دانشجوی کارشناسی ارشد، گروه علوم و مهندسی جنگل، دانشکده منابع طبیعی، دانشگاه علوم کشاورزی و منابع طبیعی ساری، ساری، ایران

2 دانشیار گروه جنگلداری، دانشگاه علوم کشاورزی و منابع طبیعی ساری.

3 گروه علوم و مهندسی جنگل، دانشکده منابع طبیعی، دانشگاه علوم کشاورزی و منابع طبیعی ساری، ساری، ایران.

4 علوم و مهندسی جنگل، دانشکده منابع طبیعی، دانشگاه علوم کشاورزی و منابع طبیعی ساری، ایران

چکیده

در این پژوهش به بررسی تأثیر جوامع گیاهی جنگل دارابکلا بر ذخیره کربن زی‌توده روزمینی و خاک پرداخته شده و پنج جامعه گیاهی طبیعی انجیلی-ممرزستان، آزاد-بلوطستان، تاج‌ریزی جنگلی-راشستان، افرا پلت-انجیلیستان، فرفیون جنگلی-راشستان و یک توده جنگلکاری افرا پلت مقایسه شدند. نمونه‌برداری به روش آماربرداری منظم تصادفی با ابعاد شبکه 400×400 متر انجام شد. پس از حذف نقاط حاشیه‌ای، نمونه خاک از مرکز 163 قطعه­نمونه به ابعاد 20×20 متر برداشت شد. نتایج آزمون‌های تجزیه واریانس، مقایسه میانگین و تجزیه مولفه‌های اصلی نشان داد که بیشترین مقدار پتاسیم خاک در توده جنگلکاری (97/18 ± 96/336) و کمترین آن در جامعه تاج‌ریزی جنگلی-راشستان (75/10 ± 25/160) مشاهده شد. مشخصه فسفر خاک دارای بیشترین مقدار در جامعه افرا پلت-انجیلیستان (55/0 ± 65/4) و کمترین مقدار در جامعه تاج‌ریزی جنگلی-راشستان (14/0 ± 95/1) بود. جامعه افرا پلت-انجیلیستان (08/2 ± 80/34 درصد) و تاج‌ریزی جنگلی-راشستان (22/1 ± 73/22) به­ترتیب بیشترین و کمترین درصد رطوبت را داشتند. با این وجود، جوامع مختلف تأثیر معنی‌داری بر ذخیره کربن و درصد شن خاک نداشتند. جامعه آزاد-بلوطستان (33/23 ± 82/242) بالاترین و توده جنگلکاری (55/5 ± 78/54) کمترین ذخیره کربن زی‌توده را داشتند.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Effect of plant communities of the Darabkola research and educational forest on Carbon stored in soil and above ground biomass

نویسندگان [English]

  • Ali Baluee 1
  • Seyyed Mohammad Hojati 2
  • Hamed Asadi 3
  • Maryam Asadian 4
1 M.Sc. Student in Forestry, Department of Forest science and engineering, Sari Agricultural Sciences and Natural Resources University. Sari. I.R. Iran.
2 Associate Professor, Faculty of Natural Resources, Sari Agricultural Sciences and Natural Resources University, Iran
3 Department of Forest science and engineering, Sari Agricultural Sciences and Natural Resources University. Sari. I.R. Iran.
4 Department of Forest Science and Engineering, Faculty of Natural Resources, Agricultural Sciences and Natural Resources University, Sari, Iran
چکیده [English]

Current study reviews effect of the Darabkola forest plant communities on Carbon sequestration in soil and Above Ground Biomass (AGB). It compared five natural communities, including Parrotio persicae-Carpinetum betuli, Zelkovo carpinifoliae-Quercetum castaneifoliae, Solano kieseritzkii-Fagetum orientalis, Aceri velutini-Parrotietum persicae, Euphorbio amygdaloidea-Fagetum orientale, and one Maple plantation stand. Sampling was done using systematic randomized with 400×400 meters dimensions. After removal of marginal points, soil samples were collected from center of 163 plots with 20×20 meters dimension. Results of ANOVA, mean comparison, and PCA showed that the highest soil Potassium belongs to the plantation stand (336.96±18.97), while the least one, belongs to Solano kieseritzkii-Fagetum orientalis (160.25±10.75). On the other hand, soil Phosphorus was the highest in the Aceri velutini-Parrotietum persicae (4.65±0.55), and it was the lowest in Solano kieseritzkii-Fagetum orientalis (1.95±0.14). Aceri velutinid-Parrotietum persicae (34.80±2.08) and Solano kieseritzkii-Fagetum orientalis (22.73±1.22) had the highest and the lowest soil moisture content, respectively. However, the study proved that different communities did not affect soil sand percent and carbon sequestration. Zelkovo carpinifoliae-Quercetum castaneifoliae (242.82±23.22) had the highest, and plantation stand (54.78±5.55) had the lowest carbon sequestration in AGB.

کلیدواژه‌ها [English]

  • Forest plantation
  • Plant community
  • Natural forest
  • Carbon sequestration
  • Hyrcanian forest
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