Soil Aggregates and Carbon Sequestration Differences between Two Densities of Poplar Plantation Forests in the North Jiangsu Plain Area

【Objective】Compare the differences in soil aggregation and carbon sequestration between two poplar plantation forests to reveal the basic process of carbon sequestration in plantation forests, thereby providing a theoretical basis for sustainable forest management.【Method】We collected the surface so...

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Veröffentlicht in:Linye kexue (1979) 2024-01, Vol.60 (10), p.21
Hauptverfasser: Yang, Dou, Liu, Chaohua, Li, Fengqiao, Tang, Luozhong, Tian, Ye, Fang, Shengzuo, Li, Xiaogang
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Sprache:chi
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Zusammenfassung:【Objective】Compare the differences in soil aggregation and carbon sequestration between two poplar plantation forests to reveal the basic process of carbon sequestration in plantation forests, thereby providing a theoretical basis for sustainable forest management.【Method】We collected the surface soil of high density(400 plants·hm-2) and low density(278 plants·hm-2)poplar plantation(16 a), and classified soil aggregates into <0.25 mm, 0.25–2 mm, and >2 mm particle levels by the optimal moisture-dry sieving method, studying the content of active, slow and passive organic carbon, and the rate of soil carbon mineralization in each particle level. 【Result】Compared with the low-density poplar plantation forests, the composition of soil aggregates in the high-density poplar plantation forests had a higher proportion of <0.25 mm and 0.25–2 mm particle sizes and a lower proportion of >2 mm particle sizes, respectively 1.06%, 21.92% and 77.02%. There were significant differences in the organic carbon fractions in soil
ISSN:1001-7488