南乌拉尔阔叶林表土中的碳储量

IF 2.8 3区农林科学 Q3 ENVIRONMENTAL SCIENCES Journal of Soils and Sediments Pub Date : 2024-03-23 DOI:10.1007/s11368-024-03780-3

Rida Sultanova, Regina Baiturina, Ilgiz Asylbaev

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引用次数: 0

摘要

目的本研究旨在评估碳填埋场中有机和矿物土层表面碳储量的空间分布。研究区域位于南乌拉尔的阔叶林中。方法森林碳循环分析是在早春对乔木、灌木和草类植被进行的。使用与 LI-COR 7810 气体分析仪相连的智能室对土壤气体通量进行了测量。结果早春时节，森林植被土壤表面二氧化碳通量排放量的绝对值高于无植被地区。结论森林枯落物和腐殖质主要由钾、氮和磷组成，对维持林区的碳平衡至关重要。

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Carbon stocks in the topsoil of broad-leaved forests in the Southern Urals

Purpose

This study aims to assess the spatial distribution of carbon reserves in the surface of organic and mineral soil layers, in a carbon landfill. The studied areas are located within the broad-leaved forests of the Southern Urals.

Methods

The analysis of the forest carbon cycle was conducted in early spring on trees, shrubs, and grass vegetation. Soil gas flux measurements were performed using a Smart Chamber connected to a LI-COR 7810 gas analyser. CO₂ flux emission from the soil surface reached up to 493.2 G_f a day, under the tree canopy and did not exceed 471.8 G_f in uncovered areas (glades).

Results

Thus, in early spring, the CO2 flux emissions from the soil surface in forest stands is higher in absolute terms, than in uncovered areas. It can presumably be explained by the difference in vegetation cover, along with the size, depth, and spatial distribution of roots from trees, shrubs and herbaceous plants.

Conclusion

Forest litter and humus, mainly composed of potassium, nitrogen, and phosphorus, are critical for maintaining the carbon balance in forest areas.

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来源期刊

Journal of Soils and Sediments 环境科学-土壤科学

CiteScore

7.00

自引率

5.60%

发文量

256

审稿时长

3.5 months

期刊介绍： The Journal of Soils and Sediments (JSS) is devoted to soils and sediments; it deals with contaminated, intact and disturbed soils and sediments. JSS explores both the common aspects and the differences between these two environmental compartments. Inter-linkages at the catchment scale and with the Earth’s system (inter-compartment) are an important topic in JSS. The range of research coverage includes the effects of disturbances and contamination; research, strategies and technologies for prediction, prevention, and protection; identification and characterization; treatment, remediation and reuse; risk assessment and management; creation and implementation of quality standards; international regulation and legislation.