干旱区生态环境知识资源中心(Arid): 灌溉方式对华北干旱区棉田土壤含盐量的影响及其在棉花生长季的差异

Arid

	灌溉方式对华北干旱区棉田土壤含盐量的影响及其在棉花生长季的差异
其他题名	Impact of Irrigation Methods on Soil Salt Content and Their Differences in Whole Cotton Growing Season in Arid Area of Northwest China
	金建君 ; 冉圣宏 ; 刘韬韬
来源期刊	资源与生态学报
ISSN	1674-764X
出版年	2016
卷号	7 期号:6 页码:453-463
中文摘要	土壤水盐变化研究是干旱半干旱区土地科学和农业科学的重要研究内容之一。本文通过对棉田的野外土壤取样和实验室定量分析,结果表明灌溉方式对棉田土壤表层(0-20 cm)和次深层(40-60 cm)土壤含盐量的影响最大,其次是深层(60-100 cm)和根层(20-40 cm):漫灌使得土壤含盐量的最大值出现在深层(60-100 cm)或次深层(40-60 cm),而滴灌使得土壤含盐量的最大值出现在根层(20-40 cm)或次深层(40-60 cm)。同时,灌溉方式对土壤Cl~-/SO_4~(2-)也有影响:漫灌使其增大而滴灌则会使其先升后降,在棉花生长中期的7月份达到最大值,这意味着灌溉方式可能对棉田土壤的盐渍化类型具有一定的影响;最后本文还采用配对样本的非参数检验对灌溉方式导致的这种土壤含盐量差别的显著性进行了分析,认为这种差别在棉花的不同生长期的显著性有所不同。
英文摘要	Research for changes of soil water and salt is an important content of land sciences and agriculture sciences in arid and semi arid regions. In this paper, sampling in actual agricultural fields, laboratory analysis of soil samples and statistical analysis methods are used to quantitatively analyze soil salinity changes under different irrigation methods throughout the cotton growing season in Shihezi reclamation area. The results show that irrigation methods play an important role in soil salt content in the surface soil (0-20 cm) and sub-deep soil (40-60 cm), followed by deep soil layer (60-100 cm) and root soil layer (20-40 cm). Furrow irrigation yields the maximum soil salt content in deep layer (60-100 cm) or sub-deep layer (40-60 cm) and the maximum salinity occurs in the first half of the cotton growing season (June or earlier). In contrast, drip irrigation yields the maximum soil salinity in the root layer (20-40 cm) or sub-deep (40-60 cm), and this usually appears in the second half growing season (July or after). The ratio of chloride ion to sulfate ion (Cl~-/SO_4~(2-)) and its change in the soil are on the rise under furrow irrigation, while the value first increased and then decreased with a peak point in June under drip irrigation. This suggests that furrow irrigation may shift the type of soil salinization to chloride ion type moreso than drip irrigation. Potassium and sodium ion contents of the soil show that soil sodium+potassium content will drop after the first rise under furrow irrigation and the value is manifested by fluctuations under drip irrigation. Potassium+sodium content change is relatively more stable in the whole cotton growth period under irrigation methods. The maximum of sodium and potassium content of the soil usually occur in deep soil layer (60-100 cm) or sub-deep soil layer (40-60 cm) in most sample points under furrow irrigation while it is inconsistent in different sample points under drip irrigation. A nonparametric test for paired samples is used to analyze differences of soil salt content under different irrigation methods. This analysis shows that the impact of irrigation on soil salinity is most significant in July, followed by August, June, May, and April in most sample points. The most significant impact of irrigation methods occurs in the surface soil layer (0-20 cm), followed by deep layer (60-100 cm), root layer (20-40 cm) and sub-deep (40-60 cm). These conclusions will be benefitial for mitigation of soil salinization, irrigation and fertilization and sustainable land use.
中文关键词	土壤盐渍化 ; 土壤水含量 ; 棉花生长季 ; 华北干旱区
英文关键词	soil salinity soil water content cotton growing season arid area of northwest China
语种	英语
国家	中国
收录类别	CSCD
WOS类目	AGRONOMY
WOS研究方向	Agriculture
CSCD记录号	CSCD:5869591
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/235579
作者单位	1.College of Resources Science and Technology, Beijing Normal University, Beijing 100875, China; 2.Institute of Geographical Sciences and Natural Resources Research, CAS, Key Laboratory of Land Surface Pattern and Simulation,CAS, Beijing 100101, China; 3.Northwest Institute of Eco-Environment and Resources, CAS, Lanzhou, Gansu 730000, China
推荐引用方式 GB/T 7714	金建君,冉圣宏,刘韬韬. 灌溉方式对华北干旱区棉田土壤含盐量的影响及其在棉花生长季的差异[J],2016,7(6):453-463.
APA	金建君,冉圣宏,&刘韬韬.(2016).灌溉方式对华北干旱区棉田土壤含盐量的影响及其在棉花生长季的差异.资源与生态学报,7(6),453-463.
MLA	金建君,et al."灌溉方式对华北干旱区棉田土壤含盐量的影响及其在棉花生长季的差异".资源与生态学报 7.6(2016):453-463.