بررسی تاثیر آمیختگی بر مشخصه‌های کمی و کیفی گونهEucalyptus camaldulensis Dehnh. و ویژگی‌های خاک پارک جنگلی لاله دزفول

حمیدی, اردوان; عطارروشن, سینا; پوررستمی, رمضانعلی; تابش, محمدرضا; کاتبی فر, سیامک

doi:10.22051/jab.2024.38690.1457

نوع مقاله : مقاله پژوهشی

نویسندگان

¹ فارغ التحصیل کارشناسی ارشد محیط زیست، واحد اهواز، دانشگاه آزاد اسلامی، اهواز، ایران.

² استادیار گروه علوم محیط زیست، مرکز تحقیقات گرد و غبار خلیج فارس، واحد اهواز، دانشگاه آزاد اسلامی، اهواز، ایران.

³ دانش آموخته دکتری جنگلشناسی و اکولوژی جنگل دانشگاه تهران.

⁴ استادیار گروه محیط زیست، دانشگاه آزاد اسلامی، واحد علوم و تحقیقات، تهران، ایران.

⁵ دانش آموخته کارشناسی ارشد کنترل و مبارزه با علف های هرز، پردیس علوم و تحقیقات تهران، دانشگاه آزاد اسلامی، تهران، ایران.

10.22051/jab.2024.38690.1457

چکیده

نیاز روز افزون جامعه به چوب و کاهش سطـح جنگلها موجب شده که جنگلکاری‌ از جایگاه خاصی در برنامه-ریزیها برخوردار باشد. هدف مطالعه، بررسی اثر جنگلکاری خالص اکالیپتوس و آمیخته اکالیپتوس و کُنار بر خصوصیات رویشی و خاک توده‌ها در پارک لاله دزفول بود. این مطالعه در قالب طرح کاملاً تصادفی با دو تیمار جنگلکاری خالص اکالیپتوس، جنگلکاری آمیخته اکالیپتوس و کُنار در سه تکرار اجرا گردید. در مجموع 42 قطعه نمونه پیاده شد. خصوصیات‌ کمی اندازه‌گیری شده عبارت از قطر برابرسینه، قطر یقه، ارتفاع درخت، تاج پوشش، ضریب پایداری، ضریب کاهش قطری، حجم، وزن خشک برگ، شاخص سطح برگ، پهنای دوایر سالیانه و دانسیته چوب بود. برای تعیین خصوصیات فیزیکی و شیمیایی خاک از هر قطعه سه نمونه خاک از عمق 0 تا 30 سانتی‌متر تهیه و با هم مخلوط گردید تا یک نمونه خاک ترکیبی برای انجام آزمایش‌های فیزیکی و شیمیایی به آزمایشگاه منتقل شد. نتایج نشان داد که میانگین قطر برابر سینه، قطر یقه، ارتفاع، حجم و پهنای دوایر سالیانه اکالیپتوس به طور معنیداری در توده خالص بیشتر از آمیخته بود. بر اساس تحلیل مؤلفه‌های اصلی و به کمک خصوصیات رویشی اکالیپتوس، دو گروه اکولوژیک در طول محورهای اول و دوم تفکیک شدند که این گروهها هر کدام انطباق بالایی با محل نمونه‌برداری نشان دادند. بررسی خصوصیات خاک بین دو توده نشان داد که میزان پتاسیم، نیتروژن، فسفر، کربن آلی و درصد رطوبت اشباع به طور معنیداری در توده خالص بیشتر بود. در مجموع میتوان اذعان داشت که ویژگیهای رویشی در جنگلکاری خالص از آمیخته بهتر بود.

کلیدواژه‌ها

موضوعات

گیاهی

عنوان مقاله [English]

Investigation of the effect of fusion on quantitative and qualitative characteristics of Eucalyptus camaldulensis Dehnh. and soil characteristics of Laleh Forest Park in Dezful

نویسندگان [English]

Ardavan hamidi ¹
Sina Attarroshan ²
Ramezanali pourrostami ³
mohammadreza tabesh ardakani ⁴
siamak katebifar ⁵

¹ Graduated with a master's degree in environment, Ahvaz branch, Islamic Azad University, Ahvaz, Iran.

² Assistant Professor, Department of Environmental Sciences, Persian Gulf Dust Research Center, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran.

³ Ph.D. Graduated of silviculture and forest ecology in Tehran University.

⁴ Department of Environment, Science and Research Branch, Islamic Azad University, Tehran, Iran.

⁵ M.Sc. Graduated of weed biology and management, Tehran Science and Research Branch, Islamic Azad University, Tehran, Iran.

چکیده [English]

High increase in societies’ needs to wood and its products followed by decrease in forests lands leads to give special importance to forest plantation. The study aims to consider the impact of pure and mixed plantation of Eucalyptus and Ziziphus on above-ground growth features and soil properties in Laleh Park in Dezful . A complete randomly design was conducted with two treatments of pure plantation of Eucalyptus cameldulensis, and mixed plantation of Eucalyptus and Ziziphus with three repetitions. In total, 42 sample plots were determined. The quantity characteristics were diameter at breast height , diameter of collar , height of tree , crown coverage, slender coefficient , Form quotient, volume, leaf dry mass , leaf area index , total growth ring width , and wood density. To determine the chemical and physical properties of soil, three soil samples from each plot at the depth of 0 to 30 cm were collected and a mixed sample was transformed to the laboratory for the further works. The results showed that DBH, DC, H, V, TWR of Eucalyptus cameldulensis in pure plantation was significantly higher than those of mixed plantation. According to the analysis of main components and growth features of Eucalyptus cameldulensis, two groups were separated across first and second axes as each of them indicated high adaptation with place of sampling (mixed or pure mass). The measuring soil properties between two plantations showed that potassium, nitrogen, phosphor, organic carbon, and saturation moisture content were significantly more than that in pure plantation.

کلیدواژه‌ها [English]

Pure and mixed plantations
growth features
soil properties
Principal component analysis
Semi-arid zones

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زیست شناسی کاربردی

بررسی تاثیر آمیختگی بر مشخصه‌های کمی و کیفی گونهEucalyptus camaldulensis Dehnh. و ویژگی‌های خاک پارک جنگلی لاله دزفول

مراجع

مراجع

دوره 36، شماره 4 - شماره پیاپی 78
اسفند 1402
صفحه 47-59

بررسی تاثیر آمیختگی بر مشخصه‌های کمی و کیفی گونهEucalyptus camaldulensis Dehnh. و ویژگی‌های خاک پارک جنگلی لاله دزفول

مراجع

مراجع

دوره 36، شماره 4 - شماره پیاپی 78اسفند 1402صفحه 47-59

دوره 36، شماره 4 - شماره پیاپی 78
اسفند 1402
صفحه 47-59