| 不同利用方式下石灰性紫色土的锌形态剖面分布特征初探 |
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| 引用本文： | 高美荣,朱波,蒋明富,成延鏊.不同利用方式下石灰性紫色土的锌形态剖面分布特征初探[J].应用生态学报,2003,14(2):201-204. |
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| 作者姓名： | 高美荣 朱波 蒋明富 成延鏊 |
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| 作者单位： | 中国科学院-水利部成都山地灾害与环境研究所,成都,610041 |
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| 基金项目： | 中国科学院知识创新工程资助项目 (KZCX2 413) |
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| 摘 要： | 分析对比了4个剖面(稻田、旱地、城墙岩群组林地、蓬莱镇组林地)Zn形态的分布特征，结果表明，稻田各形态Zn的剖面分布比旱地复杂，农地土层深厚，Zn各形态分配在层次间的变化较林地复杂．DTPA-Zn(有效态锌)在表层分配的相对较高，说明作物根系层及林木根系层缺Zn突出．对各种形态在不同剖面中的分配进行了显著性分析，结果表明，农地的碳酸盐结合态锌(3．65％)、紧结有机结合态锌(2．81％)、晶形氧化铁结合态锌(22．04％)显著大于林地(1．86％、0．84％、11．59％)．
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| 关 键 词： | 利用方式 石灰性紫色土 锌形态 土壤剖面分布 |
| 文章编号： | 1001-9332(2003)02-0201-04 |
| 修稿时间： | 2000年12月18 |
Profile distribution of zinc forms under calcareous purple soil under different land use |
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| GAO Meirong,ZHU Bo,JIANG Mingfu and CHENG Yanao.Profile distribution of zinc forms under calcareous purple soil under different land use[J].Chinese Journal of Applied Ecology,2003,14(2):201-204. |
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| Authors: | GAO Meirong ZHU Bo JIANG Mingfu and CHENG Yanao |
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| Institution: | Institute of Mountain Hazards and Environment, Chinese Academy of Science and Ministry of Water Resources, Chengdu 610041, China. gmr@imde.ac.cn |
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| Abstract: | The distribution of DTPA Zn was influenced by other zinc forms in soil profile. In order to approach the mechanism of zinc deficiency in calcareous purple soil widely distributed in hilly regions of central Sichuan Province,four profiles(paddy field, dry land, K 1c forest land and J 3p forest land) under different land use were selected to study the distribution of other zinc forms. The results indicated that the distribution complication of zinc forms was in order of paddy field>dry land>forest land. The quantities of CAB Zn(3.65%), TOM Zn(2.81%) and COFe Zn(22.04%) in farmland were evidently more than those (1.86%,0.84%,11.59%) in paddy field. |
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| Keywords: | Calcareous purple soil Soil profile Zinc form |
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