不同滴灌年限小麦土壤速效养分空间变异特征

doi:10.6048/j.issn.1001-4330.2018.11.014

新疆农业科学 ›› 2018, Vol. 55 ›› Issue (11): 2069-2079.DOI: 10.6048/j.issn.1001-4330.2018.11.014

• 土壤肥料·加工·贮藏·植物保护 • 上一篇下一篇

不同滴灌年限小麦土壤速效养分空间变异特征

李亚莉¹, 赖宁², 乔江飞², 耿庆龙², 陈署晃²

1.塔城地区农业技术推广中心,新疆塔城 834700;
2.新疆农业科学院土壤肥料与农业节水研究所,乌鲁木齐 830091

收稿日期:2018-07-03 发布日期:2019-02-22
通信作者: 耿庆龙(1982-),男,山东人,硕士,副研究员,研究方向为资源环境与农业信息技术应用,E-mail:qlgeng2006@163.com
作者简介:李亚莉(1992-),女,新疆人,硕士,研究方向为资源环境与农业信息技术应用,E-mail:583324832@qq.com;陈署晃(1973-),女,湖南人,硕士,研究员,研究方向为土壤肥料与农业信息技术应用,E-mail:chensh66@163.com
基金资助:
国家重点研发计划项目(2018YFD0200406);国家自然科学基金项目(41461047)

Spatial Variability of Soil Nutrients in Different Drip Irrigation Years of Winter Wheat

LI Ya-li¹, LAI Ning², QIAO Jiang-fei², GENG Qing-long², CHEN Shu-huang²

1.Agricultural Technology Extension Center of Tacheng Prefecture,Tacheng Xinjiang 834700, China;
2. Research Institute of Soil, Fertilizer and Agricultural Water Conservation, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China

Received:2018-07-03 Published:2019-02-22
Correspondence author: Geng Qing-long(1982-),male, native placeShandong ,postgraduate, associate professor. Reserch areaResources and Environment and the Application of Agricultural Information Technology. E-mail:qlgeng2006@163.com
About author:ChenShu-huang(1973-),female,native place:Hunan.postgraduate,professor. Reserch area:Soil and Fertilizer and the Application of Agricultural Information Technology. E-mail:chensh66@163.com
Supported by:
The National Key R & D Program of China (2018YFD0200406) and the National Natural Science Foundation of China (41461047)

摘要/Abstract

摘要： 【目的】研究小麦不同滴灌年限土壤速效养分积累的变化规律,了解其空间分布特征。为科学管理滴灌小麦土壤调查和施肥技术体系提供理论和数据参考。【方法】以1、3、5、7 a滴灌小麦农田土壤为研究对象,分析不同滴灌年限小尺度土壤盐分空间的分布特征。采集土壤剖面(0~60 cm)样品,结合连续性定位监测、描述性统计和地统计分析,研究不同滴灌年限土壤速效养分时空变异规律。【结果】不同滴灌年限速效养分的最大值在0~20 cm土层,最小值在40~60 cm土层;不同土壤层的速效养分含量呈弱变异和中等变异。半方差函数表明,滴灌1、3、5、7 a土壤速效养分含量符合球状模型和高斯模型,呈明显空间自相关和中等空间相关性,块金系数在15.28%~65.15%。【结论】不同滴灌年限土壤速效养分随年限的增加呈现下降趋势,其空间分布主要受人为因素和随机因素的共同影响。

关键词: 滴灌小麦; 不同滴灌年限; 土壤剖面; 速效养分含量

Abstract: 【Objective】 To explore the change rule of soil available nutrient accumulation in wheat in different years of drip irrigation and to understand their spatial distribution characteristics.【Method】In this study, the soil of wheat field under drip irrigation for 1, 3, 5 and 7 years was used as the research object, and the spatial distribution characteristics of salinity in small-scale soil of different drip irrigation years were analyzed. Soil profile (0-60 cm) samples were collected, combined with continuous location monitoring, descriptive statistics and geostatistical analysis, to study the temporal and spatial variability of soil available nutrients in different drip irrigation years.【Result】The results showed that the maximum value of available nutrients was 0-20 cm soil layer and the minimum value was 40-60 cm soil layer in different years of drip irrigation and the available nutrient content in different soil layers showed weak variation and medium variation. Semi-variance function showed that the soil available nutrient contents in 1, 3, 5 and 7 years of drip irrigation were in accordance with the spherical model and Gaussian model, with significant spatial autocorrelation and moderate spatial correlation. The coefficient of lump gold was between 15.28% and 65.15%.【Conclusion】In conclusion, the soil available nutrients in different years of drip irrigation showed a downward trend with the increase of years, and their spatial distribution was mainly affected by human factors and random factors. The conclusion can provide theoretical and data reference for scientific management of soil survey and fertilization technology system for drip irrigation wheat.

Key words: drip irrigation winter wheat; different drip irrigation years; soil profile; available nutrient content

中图分类号:

S512
S15

李亚莉, 赖宁, 乔江飞, 耿庆龙, 陈署晃. 不同滴灌年限小麦土壤速效养分空间变异特征[J]. 新疆农业科学, 2018, 55(11): 2069-2079.

LI Ya-li, LAI Ning, QIAO Jiang-fei, GENG Qing-long, CHEN Shu-huang. Spatial Variability of Soil Nutrients in Different Drip Irrigation Years of Winter Wheat[J]. Xinjiang Agricultural Sciences, 2018, 55(11): 2069-2079.

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不同滴灌年限小麦土壤速效养分空间变异特征

Spatial Variability of Soil Nutrients in Different Drip Irrigation Years of Winter Wheat

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