县级区域粮田土壤养分空间变异特征评价研究

doi:10.7668/hbnxb.2008.S2.074

华北农学报 ›› 2008, Vol. 23 ›› Issue (S2): 319-324. doi: 10.7668/hbnxb.2008.S2.074

所属专题： 土壤肥料；

县级区域粮田土壤养分空间变异特征评价研究

崔振岭¹, 曹宁², 陈新平¹, 张福锁¹, 徐久飞³, 石立委³, 李俊良³

1. 中国农业大学, 资源与环境学院, 北京, 100094;
2. 吉林大学, 植物科学学院, 吉林, 长春, 130062;
3. 青岛农业大学, 资源与环境学院, 山东, 青岛, 266109

收稿日期:2008-07-30 出版日期:2008-12-31
通讯作者: 陈新平(1968 - ),男,安徽宣城人,博士,教授,主要从事养分资源管理研究。
作者简介:崔振岭(1978-),男,山东东营人,博士,副教授,主要从事养分资源管理研究.
基金资助:
国家自然科学基金(30700478);“十一五”科技支撑计划(2006BAD10B03;2006BAD10B08)

Study on Evaluation of Spatial Variability of Soil Nutrient on the Grain Crop Region of County

CUI Zhen-ling¹, CAO Ning², CHEN Xin-ping¹, ZHANG Fu-suo¹, XU Jiu-fei³, SHI Li-wei³, LI Jun-liang³

1. College of Resource and Environmental Sciences, China Agricultural University, Beijing 100094, China;
2. College of Plant Science, Jilin University, Changchun 130062, China;
3. College of Resource and Environmental Sciences, Qingdao Agricultural University, Qingdao 266109, China

Received:2008-07-30 Published:2008-12-31

摘要/Abstract

摘要： 为了进一步了解县级区域粮田土壤养分的时空变异特征,以山东省惠民县为例,研究了20年来惠民县农业土壤养分循环、平衡与时空变异特征的关系。结果表明,自1985年以来,惠民县农业土壤氮磷过量盈余,而钾基本持平。惠民县土壤养分空间变异特征可以分为3类:①土壤速效钾空间变异符合典型的指数模型,最大自相关距离为16.6 km;②土壤全氮空间变异随空间间距的增大而增大,有一定的空间分布规律性;③土壤速效磷空间变异与间距无关,存在纯块金效应。与20年前土壤养分空间变异特征相比,土壤全氮和速效钾的养分空间分布规律变化不大,而土壤速效磷的空间分布规律变化较大。土壤养分时空变异特征与土壤养分循环趋势相一致,说明土壤养分循环与平衡是影响区域土壤养分空间变异发生变化的主要因素。

关键词: 养分平衡, 时空变异, 地统计学, Kriging插值, GIS

Abstract: This paper took Huimin county for example analysis soil nutrient balance and spatialm temporal variability for more understanding spatialm temporal variability of soil nutrient on the grain crop region of county. The results showedthat,nitrogen and phosphorus in soil were superabundant,and potassium balanced from 1985. There were three types ofspatial variability of soil nutrient in Huimin county: ①The spatial variability of exchangeable Kwas best described by ex2ponential model,and the maximum correlative distance was 16. 6 km. ②The spatial variability of total N increased withincreasing spatial distance. To some extent,there was tendency of them in spatial distribution. ③The spatial variability ofOlsen2P had no relation with spatial distance inside the sampling distance. Compared with spatial distribution of soil nutri2ent in 1984,a litter differences were observed to spatial distribution of total N and exchangeable K,and a large differenceswere observed to spatial distribution of lsen. The character of spatial temporal variability of soil nutrient was similar to soil nutrient balance. It indicated soil nutrient balance was important factor to result in the difference of spatial2temporalvariability of soil nutrient.

Key words: :Nutrient balance, Spatial2temporal variability, Geostatistics, Kriging interpolation, GIS

中图分类号:

崔振岭, 曹宁, 陈新平, 张福锁, 徐久飞, 石立委, 李俊良. 县级区域粮田土壤养分空间变异特征评价研究[J]. 华北农学报, 2008, 23(S2): 319-324. doi: 10.7668/hbnxb.2008.S2.074.

CUI Zhen-ling, CAO Ning, CHEN Xin-ping, ZHANG Fu-suo, XU Jiu-fei, SHI Li-wei, LI Jun-liang. Study on Evaluation of Spatial Variability of Soil Nutrient on the Grain Crop Region of County[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2008, 23(S2): 319-324. doi: 10.7668/hbnxb.2008.S2.074.

http://www.hbnxb.net/CN/Y2008/V23/IS2/319

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