干旱区生态环境知识资源中心(Arid): 毛乌素沙地砒砂岩与沙复配土壤颗粒组成动态变化特征

Arid

	毛乌素沙地砒砂岩与沙复配土壤颗粒组成动态变化特征
其他题名	Dynamic change characteristics of soil particle composition of soft rock and sand compound soil in Mu Us Sandy Land
	张海欧; 解建仓; 南海鹏; 韩霁昌; 汪妮; 孙婴婴; 张露
来源期刊	中国水土保持科学
ISSN	2096-2673
出版年	2019
卷号	17 期号:6
中文摘要	毛乌素沙地具备发展生态高值农业的环境条件,砒砂岩与沙复配成土作为一种新型复配土壤,其颗粒组成是否稳定是土壤可持续发展的关键问题。采用Master sizer 2000激光粒度分析仪对砒砂岩与沙在不同体积混合比例(0∶ 1、1∶ 5、1∶ 2、1∶ 1、2∶ 1、5∶ 1和1∶ 0)下的复配土颗粒组成变化特征分析,并对20102016年间大田试验不同比例复配土壤颗粒组成动态变化趋势进行研究。结果表明:相对于风沙土(0∶ 1)而言,随着砒砂岩含量的增加,复配土壤粉粒含量最大增幅是13.04倍,黏粒含量最大增幅是2.02倍,砂粒含量下降,复配土质地类别呈现从砂土砂壤壤土粉壤土转变的良好趋势,土壤颗粒级配向良性发展。随着玉米种植年限的增加,1 ∶ 1复配土壤粉粒含量增加了173.0%,黏粒含量增幅为27.5% ~ 178.8%; 1∶ 2复配土壤粉粒含量增加了83.3%,黏粒含量增幅为8.2% ~ 187.2%; 1∶ 5复配土壤粉粒含量增加了132.6%,黏粒含量增幅为12.4% ~ 72.6%。复配土粗颗粒递减,细颗粒增加,土壤大颗粒(砂粒含量)与小颗粒(粉粒含量+黏粒含量)的比例(C/F)呈减小趋势,土壤耕层颗粒级配趋于合理化,提升了复配土稳定性;因此,经过多年种植后,不同比例复配土壤耕层均趋于细化,更有利于砒砂岩与沙充分混合,复配土壤能够维持颗粒组成良好且稳定的发展状态。
英文摘要	[Background] Mu Us Sandy Land has the environmental conditions for developing ecologically high-value agriculture,soil texture is one of the important monitoring indexes in the process of desertification monitoring and evaluation in northern China,as a new type of compound soil of soft rock and sand in Mu Us Sandy Land,the stability of particle composition is the key to the sustainable development of soil. [Methods]The method was based on a combination of field positioning experiments and laboratory experiments conducted from 2010 to 2016,effect of soft rock as soil amendment on soil texture change and dynamic change trend was investigated in a field experiment in sandy soil in Mu Us Sandy Land in 2010 - 2016. Treatments including seven rates of soft rock to sandy soil in volume (0∶ 1, 1∶ 5,1∶ 2,1∶ 1,2∶ 1,5∶ 1 and 1∶ 0) were conducted only in the laboratory before planting. [Results] 1) Compared with Aeolian sandy soil (0∶ 1) ,with the increase of the content of soft rock,the silt and clay content of compound soil increased gradually,and the content of sand decreased,the maximum increase of silt content was 13.04 times,clay content was 2.02 times,the texture of compound soil gradually changed from sand-sandy loam-loam-silt loam,and soil particle size distribution tended to develop better. 2) With the increase of corn planting years from 2010 to 2016,the silt content in 1∶ 1 compound soil increased by 173.0%,the clay content increased by 27.5% - 178.8%. The silt content in the 1∶ 2 compound soil increased by 83.3% and the clay content increased by 8.2% - 187.2%. Silt content in 1 ∶ 5 compound soil increased by 132.6%,and the clay content increased by 12.4% - 72.6%. The coarse particles of the compound soil decreased,the fine particles increased,and the C /F (coarse particles /fine particles) value showed a decreasing trend,and the particle gradation of the soil layer tends to be rationalized,which improves the stability of the compound soil. [Conclusions] Therefore,the compounded soil can maintain a fine and stable development of the particle composition after many years of planting,and the plough layer of compound soil in different proportions tends to be refined,which is more conducive to the full mixing of soft rock and sand. This study demonstrates considerable theoretical and practical significance for understanding the evolutionary mechanisms of compound soil and the later agricultural management and improvement of Aeolian sandy soil.
中文关键词	复配土壤 ; 颗粒组成 ; 质地 ; 动态变化 ; 稳定性
英文关键词	compound soil soil particle composition texture dynamic change stability
类型	Article
语种	中文
收录类别	CSCD
WOS类目	Agriculture
CSCD记录号	CSCD:6647889
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/353302
作者单位	张海欧, 西安理工大学;;陕西地建土地工程技术研究院有限责任公司, 陕西省西北旱区生态水利工程重点实验室;;, 西安;;西安, ;; 710048;;710021. 解建仓, 西安理工大学, 陕西省西北旱区生态水利工程重点实验室, 西安, 陕西 710048, 中国. 南海鹏, 西安理工大学, 陕西省西北旱区生态水利工程重点实验室, 西安, 陕西 710048, 中国. 汪妮, 西安理工大学, 陕西省西北旱区生态水利工程重点实验室, 西安, 陕西 710048, 中国. 韩霁昌, 陕西地建土地工程技术研究院有限责任公司, 西安, 陕西 710021, 中国. 孙婴婴, 陕西地建土地工程技术研究院有限责任公司, 西安, 陕西 710021, 中国. 张露, 陕西地建土地工程技术研究院有限责任公司, 西安, 陕西 710021, 中国.
推荐引用方式 GB/T 7714	张海欧,解建仓,南海鹏,等. 毛乌素沙地砒砂岩与沙复配土壤颗粒组成动态变化特征[J],2019,17(6).
APA	张海欧.,解建仓.,南海鹏.,韩霁昌.,汪妮.,...&张露.(2019).毛乌素沙地砒砂岩与沙复配土壤颗粒组成动态变化特征.中国水土保持科学,17(6).
MLA	张海欧,et al."毛乌素沙地砒砂岩与沙复配土壤颗粒组成动态变化特征".中国水土保持科学 17.6(2019).