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[1]聂富育,杨万勤,杨开军,等.四川盆地西缘4种人工林土壤团聚体及有机碳特征[J].应用与环境生物学报,2017,23(03):542-547.[doi:2016.07003]
　NIE Fuyu,YANG Wanqing,YANG Kaijun,et al.Soil aggregates and organic carbon in four plantations on the western edge of the Sichuan Basin[J].Chinese Journal of Applied & Environmental Biology,2017,23(03):542-547.[doi:2016.07003]
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四川盆地西缘4种人工林土壤团聚体及有机碳特征()
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《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]

卷:
23卷
期数:
2017年03期
页码:
542-547
栏目:
研究论文
出版日期:
2017-06-25

文章信息/Info

Title:
Soil aggregates and organic carbon in four plantations on the western edge of the Sichuan Basin
作者:
聂富育; 杨万勤; 杨开军; 贺若阳; 庄丽燕; 李志杰; 徐振锋
1四川农业大学生态林业研究所，四川省林业生态工程重点实验室 成都 611130 2四川农业大学华西雨屏区生态环境监测站，长江上游生态安全协同创新中心 成都 611130
Author(s):
NIE Fuyu;  YANG Wanqing;  YANG Kaijun;  HE Ruoyang;  ZHUANG Liyan;  LI Zhijie & XU Zhenfeng
1Key Laboratory of Ecological Forestry Engineering of Sichuan Province, Institute of Ecology & Forest, Sichuan Agricultural University, Chengdu 611130, China 2Monitoring Station for Eco-environments in the Rainy Zone of Southwest China, Collaborative Innovation Center of Ecological Security in the Upper Reaches of Yangtze River, Chengdu 611130, China
关键词:
人工林; 土壤团聚体; 有机碳; 有机碳储量
Keywords:
plantation;  soil aggregate;  soil organic carbon;  soil organic carbon stock
分类号:
S714
DOI:
2016.07003
摘要:
土壤团聚体作为土壤结构的基本单元，强烈影响着土壤物理化学性质. 通过干筛法对四川盆地西缘4种人工林（柳杉林、含笑林、桢楠林和麻栎林）两个土壤层次（0-20 cm和20-40 cm）土壤团聚体及有机碳进行研究. 结果表明：4种人工林土壤团聚体均以> 2 mm粒径为主，而0.5-0.25 mm粒径团聚体仅占1.07%-3.39%；柳杉人工林0-20 cm土壤有机碳含量比20-40 cm高2倍多，其他3种人工林两个土壤层次差异幅度相对较小；与> 2 mm土壤大团聚体相比，各林地微小团聚体有机碳含量相对较高. > 2 mm粒径团聚体对有机碳贡献率达到72%-87%. 但是，较小粒径土壤团聚体有机碳储量相对较高. 综上所述，就土壤团聚体及有机碳特征而言，柳杉林和麻栎林比桢楠林和含笑林更适合用于当地植被恢复. （图1 表5 参24）
Abstract:
The objective of the study was to investigate soil aggregates and organic carbon content of four plantations of native trees on the western edge of the Sichuan Basin. Using the dry sieve method, soil aggregates and organic carbon content at two depths (0–20 cm and 20–40 cm) in four plantations, namely, plantations of Cryptomeria fortunei, Michelia wilsonii, Phoebe zhennan, and Quercus acutissima on the edge of the Sichuan Basin were investigated. Soil aggregates from the four plantations were mainly larger than 2 mm. Moreover, soil aggregates ranging from 0.5 mm to 0.25 mm accounted for only 1.07%–3.39% of all aggregates. Organic carbon in soil was approximately twice as much at a depth of 0–20 cm as at 20–40 cm in the C. fortunei plantation, but the differences in soil organic carbon between the two layers were relatively small in the other three plantations. Additionally, organic carbon in soil aggregates with smaller diameters (< 2 mm) was higher than that in aggregates with a larger diameter (> 2 mm). The organic carbon content in aggregates > 2 mm in diameter ranged 72%–87% in the four plantations and was relatively high in soil aggregates with smaller diameters. Based on characteristics of soil aggregates and organic carbon content, C. fortunei and Q. acutissima are more suitable for local vegetation restoration than either P. zhennan or M. wilsonii.

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更新日期/Last Update: 2017-06-25