| 不同林地类型土壤团聚体稳定性与铁铝氧化物的关系 |
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| 引用本文： | 赵友朋,孟苗婧,张金池,马洁怡,刘胜龙.不同林地类型土壤团聚体稳定性与铁铝氧化物的关系[J].水土保持通报,2018,38(4):75-81,86. |
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| 作者姓名： | 赵友朋 孟苗婧 张金池 马洁怡 刘胜龙 |
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| 作者单位： | 南方现代林业协同创新中心江苏省水土保持与生态修复重点实验室南京林业大学林学院;浙江省凤阳山—百山祖国家级自然保护区凤阳山管理处 |
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| 基金项目： | 林业公益性行业科研专项（201504406）;江苏省高校优势学科建设工程资助项目（PAPD） |
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| 摘 要： | 目的]探究浙江省凤阳山保护区内土壤铁铝氧化物对土壤团聚体稳定性的影响机理,为该区恢复与保护土壤资源提供理论依据。方法]以浙江省凤阳山保护区内黄棕壤地带4种林分类型(阔叶混交林、针阔混交林、杉木林、竹林)为对象,测定不同土层(0—10cm,10—20cm,20—30cm)水稳定性团聚体粒径分布以及不同形态的铁铝氧化物含量,分析各形态铁铝氧化物含量对土壤团聚体稳定性的影响。结果](1)4种林分类型土壤团聚体水稳性大团聚体(0.25mm)含量均在90%以上,水稳定性大团聚体含量和平均质量直径(MWD)均表现为:杉木林针阔混交林阔叶混交林竹林。(2)不同形态铁铝氧化物含量大小整体上表现为:游离态氧化铁Fe_d游离态氧化铝Ald无定形氧化铁Fe_o无定形氧化铝Alo络合态氧化铁Fe_p络合态氧化铝Al_p,各形态的氧化铁含量随土层加深均增加。(3)增强回归树BRT分析结果显示,对土壤团聚体MWD影响最大的是Al_p,贡献率为43.6%;其次是Ald(23.5%)和Fe_d(19.5%);Fe_o(6.9%),Alo(4%)及Fe_p(2.4%)的影响程度较小。结论]Al_p,Ald和Fe_d能促进土壤团聚体稳定,络合态氧化铝Al_p对土壤团聚体稳定性的促进作用大于游离态铁铝氧化物Ald和Fe_d。
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| 关 键 词： | 林地类型 铁铝氧化物 团聚体稳定性 水稳性大团聚体 平均质量直径 |
| 收稿时间： | 2018/1/17 0:00:00 |
| 修稿时间： | 2018/2/7 0:00:00 |
Relationship Between Soil Aggregate Stability and Different Forms of Fe and Al Oxides in Different Forest Types |
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| ZHAO Youpeng,MENG Miaojing,ZHANG Jinchi,MA Jieyi and LIU Shenglong.Relationship Between Soil Aggregate Stability and Different Forms of Fe and Al Oxides in Different Forest Types[J].Bulletin of Soil and Water Conservation,2018,38(4):75-81,86. |
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| Authors: | ZHAO Youpeng MENG Miaojing ZHANG Jinchi MA Jieyi and LIU Shenglong |
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| Affiliation: | Jiangsu Province Key Laboratory of Soil and Water Conservation and Ecological Restoration, Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, Jiangsu 210037, China,Jiangsu Province Key Laboratory of Soil and Water Conservation and Ecological Restoration, Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, Jiangsu 210037, China,Jiangsu Province Key Laboratory of Soil and Water Conservation and Ecological Restoration, Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, Jiangsu 210037, China,Jiangsu Province Key Laboratory of Soil and Water Conservation and Ecological Restoration, Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, Jiangsu 210037, China and Jiangsu Province Key Laboratory of Soil and Water Conservation and Ecological Restoration, Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, Jiangsu 210037, China;The Fengyangshan Management Office of Fengyang Mountain-Baishanzu National Nature Reserve in Zhejiang Province, Longquan, Zhejiang 323700, China |
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| Abstract: | |
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| Keywords: | forest types Fe and Al oxides aggregate stability soil water-stable macro-aggregate mean weight diameter |
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