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Biomass and carbon stocks in three types of Persian oak (Quercus brantii var. persica) of Zagros forests in a semi-arid area, Iran
Journal of Arid Land ( IF 3 ) Pub Date : 2020-09-01 , DOI: 10.1007/s40333-020-0027-4
Ali Mahdavi , Soghra Saidi , Yaghob Iranmanesh , Mostafa Naderi

Persian oak (Quercus brantii var. persica) is a dominant tree species of Zagros forests in a semi-arid area, western Iran. However, the capacity of biomass and carbon stocks of these forests is not well studied. We selected three types of oak, i.e., seed-originated oak, coppice oak and mixed (seed-originated and coppice) oak of Zagros forests in Dalab valley, Ilam Province, Iran to survey the capacity of biomass and carbon stocks in 2018. Thirty plots with an area of 1000 m2 were systematically and randomly assigned to each type of oak. Quantitative characteristics of trees, such as diameter at breast height (DBH), height, crown diameter and the number of sprouts in each plot were measured. Then, aboveground biomass (AGB), belowground biomass (BGB), aboveground carbon stock (AGCS) and belowground carbon stock (BGCS) of each tree in plots were calculated using allometric equations. The litterfall biomass (LFB) and litterfall carbon stock (LFCS) were measured in a quadrat with 1 m×1 m in each plot. One-way analysis of variance and Duncan’s test were performed to detect the differences in biomass and carbon stocks among three types of oak. Results showed that AGB, BGB and BGCS were significantly different among three types of oak. The highest values of AGB, AGCS, BGB and BGCS in seed-originated oak were 76,043.25, 14,725.55, 36,737.79 and 7362.77 kg/hm2, respectively. Also, the highest values of LFB and LFCS in seed-originated oak were 3298.33 and 1520.48 kg/hm2, respectively, which were significantly higher than those of the other two types of oak. The results imply the significant role of seed-originated oak for the regeneration of Zagros forests. Further conservation strategy of seed-originated oak is an important step in the sustainable management of Zagros forests in Iran.

中文翻译:

伊朗半干旱地区扎格罗斯森林中三种波斯橡树(Quercus brantii var. persica)的生物量和碳储量

波斯橡树(Quercus brantii var. persica)是伊朗西部半干旱地区扎格罗斯森林的主要树种。然而,这些森林的生物量和碳储量的能力还没有得到很好的研究。我们选取伊朗伊拉姆省 Dalab 山谷 Zagros 森林的种子橡树、矮林橡树和混合(种子源和矮林)橡树三种类型的橡树来调查 2018 年的生物量和碳库容量。 30面积为 1000 平方米的地块被系统地随机分配给每种橡树。测量了树木的数量特征,例如胸高直径 (DBH)、高度、树冠直径和每个小区的芽数。然后,地上生物量(AGB),地下生物量(BGB),使用异速生长方程计算地块中每棵树的地上碳储量 (AGCS) 和地下碳储量 (BGCS)。凋落物生物量 (LFB) 和凋落物碳储量 (LFCS) 在每个样地 1 m×1 m 的样方中测量。进行单向方差分析和邓肯检验以检测三种橡木之间生物量和碳储量的差异。结果表明,AGB、BGB 和 BGCS 在三种类型的橡树中存在显着差异。AGB、AGCS、BGB 和 BGCS 的最高值分别为 76,043.25、14,725.55、36,737.79 和 7362.77 kg/hm2。此外,种子来源的橡树中 LFB 和 LFCS 的最高值分别为 3298.33 和 1520.48 kg/hm2,显着高于其他两种类型的橡树。结果表明种子橡木在扎格罗斯森林再生中的重要作用。种子来源橡树的进一步保护策略是伊朗扎格罗斯森林可持续管理的重要一步。
更新日期:2020-09-01
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