干旱区生态环境知识资源中心(Arid): 不同耕作方式对宁南旱地土壤团聚体的影响

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	不同耕作方式对宁南旱地土壤团聚体的影响
其他题名	Effects of different tillage on soil aggregates in the arid areas of South Ningxia
	严波 1; 贾志宽 2; 韩清芳 2; 杨宝平 2; 聂俊峰 2
来源期刊	干旱地区农业研究
ISSN	1000-7601
出版年	2010
卷号	28 期号:3 页码:58-63
中文摘要	在宁南旱区对试验耕地定位实行连年传统翻耕(CT),隔年免耕深松(NTST)及深松免耕(STNT)三种不同处理.用干筛法和湿筛法对连续3年处理后土壤团聚体的变化进行测定,分析结果表明,干筛法中NTST处理在040 cm土层中>0.25 mm的机械稳定性团聚体比处理前和CT处理分别高33.11%,29.51%;STNT处理在040 cm土层中>0.25 mm机械稳定性团聚体含量比处理前和CT处理分别高40.51%,36.91%.湿筛法中NTST处理在030 cm土层中>0.25 mm的水稳性团聚体含量比处理前高7.33%,NTST处理在010 cm土层>0.25 mm的水稳性团聚体比CT处理高1.47%,而在1040 cm土层NTST处理和CT>0.25 mm的水稳性团聚体含量差异不显著;STNT处理在040 cm土层中>0.25 mm水稳性团聚体含量比处理前和CT处理分别高10.75%,10.12%.分析结果同时说明,采用深松免耕(STNT)轮耕方式更有利于土壤团聚体含量和稳定性的增加
英文摘要	In this study, three different tillage treatments of conventional tillage(CT), the following year no-tillage-subsoiling(NTST) and subsoiling-no-tillage(STNT) were conducted on the arid areas of South Ningxia. After 3 years of consistent tillage treatment, using dry sieving and wet sieving methods, the changing of soil aggregates was analyzed and tested. The results showed that the content of >0.25 mm mechanical aggregates in 0~40 cm layers of NTST increased by 33.11% and 29.51% and STNT increased by 40.51% and 36.91% compared with those of natural soil and CT.The content of >0.25 mm water-stable aggregates of NTST in 0~30 cm layers increased by 7.33% compared with that of natural soil, and that in 0~10 cm layers increased by 1.47% compared with CT, but that in 10~40 cm layers had no significant difference compared with CT;Compared with those of natural soil and CT, the content of >0.25 mm water-stable aggregates in 0~10 cm layers of STNT increased by 10.75% and 10.12%. The results also show that subsoiling-no-tillage(STNT) is more conducive to increase the stability of soil aggregates content
中文关键词	耕作方式 ; 土壤团聚体 ; 宁南旱区
英文关键词	tillage soil aggregates the arid areas of South Ningxia
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:4057358
来源机构	西北农林科技大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/224954
作者单位	1.西北农林科技大学干旱半干旱研究中心, 杨凌, 陕西 712100, 中国; 2.西北农林科技大学干旱半干旱研究中心, 农业部旱地作物生产与生态重点开放实验室, 杨凌, 陕西 712100, 中国
推荐引用方式 GB/T 7714	严波,贾志宽,韩清芳,等. 不同耕作方式对宁南旱地土壤团聚体的影响[J]. 西北农林科技大学,2010,28(3):58-63.
APA	严波,贾志宽,韩清芳,杨宝平,&聂俊峰.(2010).不同耕作方式对宁南旱地土壤团聚体的影响.干旱地区农业研究,28(3),58-63.
MLA	严波,et al."不同耕作方式对宁南旱地土壤团聚体的影响".干旱地区农业研究 28.3(2010):58-63.