干旱区生态环境知识资源中心(Arid): 不同轮耕模式对旱地土壤结构及入渗蓄水特性的影响

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	不同轮耕模式对旱地土壤结构及入渗蓄水特性的影响
其他题名	Effects of different rotational tillage patterns on soil structure,infiltration and water storage characteristics in dryland
	侯贤清; 贾志宽; 韩清芳; 孙红霞; 王维; 聂俊峰; 杨宝平
来源期刊	农业工程学报
ISSN	1002-6819
出版年	2012
卷号	28 期号:5 页码:85-94
中文摘要	为了探索免耕与深松隔年轮耕对土壤结构及入渗蓄水性能的影响,2007-2010年在宁南旱区采用免耕/深松/免耕、深松/免耕/深松与连年翻耕3种耕作模式,对土壤体积质量、团聚体、入渗率及水分利用效率等方面的影响进行了研究。结果表明:与连年翻耕相比,免耕/深松/免耕、深松/免耕/深松处理使0~60cm各土层土壤体积质量平均降低3.5%、6.2%(P<0.05);使0~20cm土层>0.25mm机械稳定性团聚体数量平均分别增加10.3%(P<0.05)和20.3%(P<0.01),>20~40cm土层分别平均增加17.2%(P<0.05)和23.6%(P<0.01)。免耕/深松/免耕处理0~10cm和>30~40cm土层的水稳性团聚体稳定率分别比连年翻耕提高35.1%和45.8%(P<0.05),深松/免耕/深松处理>10~20cm和>20~30cm土层水稳性团聚体稳定率分别提高101.7%和61.7%(P<0.01)。不同轮耕模式显著增强了土壤的入渗性能,提高对土壤水分的有效利用及降水利用率,免耕/深松/免耕、深松/免耕/深松处理降雨入渗率较连年翻耕分别提高35.2%和15.3%(P<0.05),水分利用效率平均提高7.2%和7.7%(P<0.05),降水生产效率平均提高9.6%和10.7%(P<0.05)。
英文摘要	In order to determine the effects of no-tillage(NT),subsoiling(ST) rotational tillage patterns on soil structure,infiltration and water storage characteristics,the rotational tillage experiments were conducted to study on soil bulk density,aggregate,infiltration rate and water use efficiency in arid areas of southern Ningxia from 2007 to 2010.Tillage treatments comprised NT/ST/NT(no-tillage in first year,subsoiling in second year,again no-tillage in third year),ST/NT/ST(subsoiling in first year,no-tillage in second year,again subsoiling in third year) and CT(conventional tillage in 3 years).The results showed that,compared with CT,the soil bulk density of NT/ST/NT and ST/NT/ST treatments in 0-60 cm soil layers decreased averagely by 3.5% and 6.2%(P<0.05);The number of elastic-stable aggregate(>0.25 mm,DR_(0.25)) in 0-20 cm layer increased averagely by 10.28%(P<0.05) and 20.26%(P<0.01),and which increased by 17.2%(P<0.05) and 23.6%(P<0.01) respectively in >20-40 cm soil layer.The water-stable aggregates stability rate(WSAR) of NT/ST/NT treatment in 0-10 cm and >30-40 cm layers increased by 35.1% and 45.8%(P<0.05),and which increased by 101.7% and 61.7%(P<0.01) respectively in >10-20 cm and >20-30 cm layers.The different rotational tillage patterns significantly enhanced soil infiltration characteristics,improved soil water use efficiency and rainfall use rate;The rainfall infiltration rate of NT/ST/NT and ST/NT/ST treatment increased averagely by 35.2% and 15.3%(P<0.05),water use efficiency(WUE) increased by 7.2% and 7.7%(P<0.05),precipitation use efficiency(PUE) increased by9.6% and 10.7%(P<0.05) respectively compared with CT.
中文关键词	土壤 ; 水分 ; 入渗 ; 轮耕模式 ; 水分利用效率 ; 宁南旱区
英文关键词	soils water infiltration rotational tillage pattern water use efficiency arid areas of southern Ningxia
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRONOMY
WOS研究方向	Agriculture
CSCD记录号	CSCD:4462204
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/2XILL650/228330
作者单位	西北农林科技大学中国旱区节水农业研究院, 农业部旱地作物生产与生态重点开放实验室, 杨凌, 712100
推荐引用方式 GB/T 7714	侯贤清,贾志宽,韩清芳,等. 不同轮耕模式对旱地土壤结构及入渗蓄水特性的影响[J]. 西北农林科技大学,2012,28(5):85-94.
APA	侯贤清.,贾志宽.,韩清芳.,孙红霞.,王维.,...&杨宝平.(2012).不同轮耕模式对旱地土壤结构及入渗蓄水特性的影响.农业工程学报,28(5),85-94.
MLA	侯贤清,et al."不同轮耕模式对旱地土壤结构及入渗蓄水特性的影响".农业工程学报 28.5(2012):85-94.