兰州窦家山典型坡面土壤水分、有机质含量及抗蚀性相关关系研究

南京大学学报(自然科学版) ›› 2018, Vol. 54 ›› Issue (1): 185–.

兰州窦家山典型坡面土壤水分、有机质含量及抗蚀性相关关系研究

高鑫宇1，2，曾献奎1*，吴吉春1，苏辉东3，杜东东2，张兆丰2，金晓蕊2

出版日期:2018-01-31 发布日期:2018-01-31
作者简介:1.南京大学地球科学与工程学院，南京，210023；
2.兰州大学资源环境学院，兰州，730000；
3．清华大学水利水电工程系，北京，100084
基金资助:
基金项目：国家重点研发计划“水资源高效开发利用”重点专项(2016YFC0402802)，国家自然科学基金(41302181，41672233，41571017)，中央高校基本科研业务费(020614380040)
收稿日期：2017－11－07
*通讯联系人，E－mail：zengxiankui@yeah.net

The study on soil moisture and organic matter content as well as their correlationships with soil anti－corrosion on typical slope of Doujia Mountain in Lanzhou

Gao Xinyu1，2，Zeng Xiankui1*，Wu Jichun1，Su Huidong3，Du Dongdong2，Zhang Zhaofeng2，Jin Xiaorui2

Online:2018-01-31 Published:2018-01-31
About author:1.School of Earth Sciences and Engineering，Nanjing University，Nanjing，210023，China；
2．College of Earth Environmental Sciences，Lanzhou University，Lanzhou，730000，China；
3．Department of Hydraulic Engineering，Tsinghua University，Beijing，100084，China

摘要/Abstract

摘要： 通过取样实验和数据分析，研究了窦家山典型坡面五种不同植被类型下的土壤含水量和土壤有机质含量变化规律以及其与土壤抗蚀性之间的关系，为窦家山及兰州地区的水土流失防治提供参考措施．研究发现，在相同的土壤剖面深度和坡位条件下，不同植被类型土壤含水量大小顺序为银白杨>侧柏>柽柳>白沙蒿>醉马草，土壤有机质含量与含水量呈现负相关；相同条件下，不同植被类型有机质含量大小顺序为醉马草>白沙蒿>柽柳>侧柏>银白杨，不同植被类型有机质含量与大于0.25 mm的水稳性团聚体含量均呈正相关关系；水稳性土壤团聚体含量大小顺序与有机质含量大小顺序相一致．大于0.25 mm粒级水稳性团聚体含量越高，土壤抗蚀性越强，即水土流失量越少．从而有机质含量越高，土壤抗蚀性越好．结果表明，醉马草或白沙蒿的种植有利于窦家山的水土保持工作．

Abstract: Based on the sample test and data analysis，the variation and relationships among soil moisture content，soil organic matter content and soil corrosion resistance were analyzed under five different vegetation types.This study is performed at the typical slopes of Doujia Mountain，Lanzhou，for the purpose of providing support for the soil erosion prevention and control.Results showed that，under the conditions of same soil depth and slope position，the contents of soil moisture in sequence from high to low was Populus alba Linn，Platycladus orientalis(Linn.)Franco，Tamarix chinensis Lour，Artemisia blepharolepis Bge，Achnatherum inebrians(Hance)Keng.The soil organic matter content was negative correlated with water content，and the content of soil organic matter in sequence was Achnatherum inebrians(Hance)Keng，Artemisia blepharolepis Bge，Tamarix chinensis Lour，Platycladus orientalis(Linn.)Franco，Populus alba Linn.The content of organic matter was positive correlated with the content of water－stable aggregates greater than 0.25 mm，and the order of soil aggregates content is consistent with the order of organic matter content.The best indicator of the corrosion resistance is the content of water－stable aggregates greater than 0.25 mm，and when its content is higher，the soil corrosion resistance is better and the soil erosion is less.So we got that the higher the content of organic matter was，the better the soil corrosion resistance was，and then conclusions can be drawn that a variety of Achnatherum inebrians(Hance)Keng or Artemisia blepharolepis Bge is beneficial to soil and water conservation work of Doujia Mountain.

高鑫宇1，2，曾献奎1*，吴吉春1，苏辉东3，杜东东2，张兆丰2，金晓蕊2. 兰州窦家山典型坡面土壤水分、有机质含量及抗蚀性相关关系研究[J]. 南京大学学报(自然科学版), 2018, 54(1): 185–.

Gao Xinyu1，2，Zeng Xiankui1*，Wu Jichun1，Su Huidong3，Du Dongdong2，Zhang Zhaofeng2，Jin Xiaorui2. The study on soil moisture and organic matter content as well as their correlationships with soil anti－corrosion on typical slope of Doujia Mountain in Lanzhou[J]. Journal of Nanjing University(Natural Sciences), 2018, 54(1): 185–.

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