干旱区生态环境知识资源中心(Arid): 耕作方式和土壤类型对皖北旱作农田土壤紧实度的影响

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	耕作方式和土壤类型对皖北旱作农田土壤紧实度的影响
其他题名	Effects of Tillage Methods and Soil Types on Characteristics of Soil Compaction in Rainfed Farmland in Northern Anhui Province
	葛畅 1; 刘慧琳 1; 张世文 1; 聂超甲 1; 黄元仿 2; 丁雪娇 1
来源期刊	水土保持研究
ISSN	1005-3409
出版年	2018
卷号	25 期号:5 页码:89-94
中文摘要	为探明旱作区耕地质量变化,了解旱作区耕作管理方式对农田质量的影响,以皖北旱作区农田土壤为研究对象,研究分析了040 cm不同深度土壤紧实度梯度变化,揭示耕作方式、土壤类型、土壤容重和土壤含水量对土壤紧实度变化的影响。结果表明:从总体上来看,在040 cm土层深度下,土壤紧实度随深度的增加呈先增加后稳定的规律,20 cm以后土壤紧实度逐渐稳定;全区平均耕层深度为14.14 cm,平均耕层紧实度为573.63 kPa。从耕作方式来看,旋耕在30 cm之前各层土壤紧实度均大于翻耕地区,旋耕平均耕层深度为12.5 cm,翻耕平均耕层深度为16.8 cm,是旋耕的1.34倍。从土壤类型来看,不同土壤类型之间土壤紧实度的差异也很明显,潮土各土层平均紧实度均大于砂姜黑土,且随着深度的增加差距逐渐增大。从影响因素来看,土壤紧实度变化与土壤容重变化在水平和垂直方向上呈正相关;土壤紧实度变化与土壤含水量变化关系复杂,总体来看二者水平方向呈正相关,垂直方向呈现负相关。研究成果将为后续探究土壤结构变化过程及规律,旱作区耕层及犁底层变化迁移过程提供依据,对改善皖北旱作区农田质量状况提供数据理论支撑。
英文摘要	In order to find out the change of cultivated land quality in arid area,and to understand the influence of tillage management mode on farmland quality in dry farming area,dry farming area in Northern Anhui was taken as the research site,the gradient variation of soil compaction at different depths from 0 to 40 cm were studied,and the effects of tillage methods,soil types,soil bulk density and soil water content on soil compaction were revealed.The results show that:on the whole,in the 040 cm soil depth,soil compactness increased first and then stabilized with the increase of depth;below 20 cm,the soil compaction was gradually stabilized;the average topsoil depth was 14.14 cm,and the average degree of compaction was 573.63 kPa;from the point of view of farming methods,above 30 cm,the soil compaction of each layer of rotary tillage was greater than that of tillage,the average tillage depth was 12.5 cm,and the average tillage depth was 16.8 cm,which was 1.34 times of that of rotary tillage;from the perspective of soil types,the difference of soil compaction between different soil types was also obvious;the average compaction degree of soil layer in fluvo aquic soil was greater than that in lime concretion black soil,and with the increase of depth,the gap increased gradually;from the impact of factors,soil compaction was positively correlated with soil bulk density changes in both horizontal and vertical directions.The relationship between soil compaction and soil water content is complex.Overall,they are positively correlated in the horizontal direction,and negatively correlated in the vertical direction.The research results will provide a basis for the further study of the soil structure change process and laws,and the change process of the plough layer and plow bottom in arid land, and provide the theoretical support for improving the farmland quality in arid area in northern Anhui.
中文关键词	土壤紧实度 ; 耕作方式 ; 土壤类型 ; 土壤容重与土壤含水量
英文关键词	soil compactness tillage methods soil type soil bulk density and soil water content
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:6324664
来源机构	中国农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/238361
作者单位	1.安徽理工大学地球与环境学院, 淮南, 安徽 232001, 中国; 2.中国农业大学, 北京 100193, 中国
推荐引用方式 GB/T 7714	葛畅,刘慧琳,张世文,等. 耕作方式和土壤类型对皖北旱作农田土壤紧实度的影响[J]. 中国农业大学,2018,25(5):89-94.
APA	葛畅,刘慧琳,张世文,聂超甲,黄元仿,&丁雪娇.(2018).耕作方式和土壤类型对皖北旱作农田土壤紧实度的影响.水土保持研究,25(5),89-94.
MLA	葛畅,et al."耕作方式和土壤类型对皖北旱作农田土壤紧实度的影响".水土保持研究 25.5(2018):89-94.