干旱区生态环境知识资源中心(Arid): 绿洲灌区不同耕作模式对土壤性质的影响

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	绿洲灌区不同耕作模式对土壤性质的影响
其他题名	Effects of tillage and cropping modes on soil properties in oasis irrigation area
	何如; 张双羽; 杨彩红; 王立
来源期刊	生态学杂志
ISSN	1000-4890
出版年	2020
卷号	39 期号:11 页码:3890-3902
中文摘要	为提出有利于绿洲灌区发展的保护性耕作种植模式,本试验设置免耕留茬覆盖(NT)和传统耕作(CT)两种耕作方式,小麦/玉米(W/ /M) 、小麦玉米轮作(W-M) 、麦后插种冬油菜轮作玉米(W-G-M) 3种种植模式,测定不同时期土壤酶活性和理化性质的变化。结果表明:不同处理下土壤蔗糖酶与淀粉酶活性呈先升后降的趋势,脲酶与蛋白酶则逐渐升高,NTW 土壤酶活性较NTM、NTW-G-M和NTSM高13.00%、7.50%、30.61%。土壤全氮、全磷在玉米成熟期最低,较小麦播期降低了59.52 % ~ 87.14%、20.00% ~ 66.67%,土壤容重在播期为最低,较玉米成熟期降低了3.47% ~ 11.03%,土壤孔隙度与土壤容重呈负相关。连续4年不同轮作后,各处理玉米产量差异不显著(P>0.05),NTW/ /M土壤结构与养分状况最佳。因此,在绿洲农业灌区,玉米/小麦间作免耕秸秆还田处理是值得推广的一项耕作模式。
英文摘要	A field experiment was conducted to investigate the effects of tillage methods and crop rotation models on soil enzyme activities and physicochemical properties during different growth periods in an oasis irrigation region of Northwest China. There were three crop rotation models, including wheat /maize intercropping (W/ /M),wheat and maize rotation (W-M),and wheat after planting winter rape in rotation with maize (W-G-M),with two tillage methods (30-cm stubble and no tillage,NT; conventional tillage,CT) being applied for each rotation model. Results showed that the activities of soil sucrase and amylase increased first and then decreased under different treatments,while the activities of urease and protease gradually increased. Soil enzyme activity of NTW was increased by 13.00%,7.50% and 30.61% than that of NTM,NTWG-M and NTSM,respectively. Soil total nitrogen and phosphorus concentrations were 59.52%-87.14% and 20.00%-66.67% lower at maize maturity than at wheat sowing,respectively. Soil bulk density was the lowest at wheat sowing,being 3.47%-11.03% lower than that at maize maturity stage. Soil porosity was negatively correlated to soil bulk density. There was no significant difference (P>0.05) in maize yield among different treatments. NTW/ /M treatment had the best performance in soil structure and nutrient status. Therefore,wheat /maize intercropping with no-tillage straw returning should be a useful method for maintaining land productivity,which is worth popularizing in oasis agricultural area.
中文关键词	间作 ; 轮作 ; 免耕 ; 土壤酶活性 ; 土壤理化性质
英文关键词	intercropping rotation no-tillage soil enzyme activity soil physicochemical properties
类型	Article
语种	中文
收录类别	CSCD
WOS类目	Agriculture
CSCD记录号	CSCD:6845655
来源机构	甘肃农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/353805
作者单位	何如, 甘肃农业大学林学院, 兰州, 甘肃 730070, 中国. 张双羽, 甘肃农业大学林学院, 兰州, 甘肃 730070, 中国. 杨彩红, 甘肃农业大学林学院, 兰州, 甘肃 730070, 中国. 王立, 甘肃农业大学林学院, 兰州, 甘肃 730070, 中国.
推荐引用方式 GB/T 7714	何如,张双羽,杨彩红,等. 绿洲灌区不同耕作模式对土壤性质的影响[J]. 甘肃农业大学,2020,39(11):3890-3902.
APA	何如,张双羽,杨彩红,&王立.(2020).绿洲灌区不同耕作模式对土壤性质的影响.生态学杂志,39(11),3890-3902.
MLA	何如,et al."绿洲灌区不同耕作模式对土壤性质的影响".生态学杂志 39.11(2020):3890-3902.