[1]董士伟,李红,孙丹峰,等.北京市大兴区土壤养分空间结构及影响因素分析[J].水土保持研究,2015,22(02):32-35.
　DONG Shiwei,LI Hong,SUN Danfeng,et al.Analysis on Spatial Structure and Influence Factor of Soil Nutrients in Daxing District of Beijing[J].Research of Soil and Water Conservation,2015,22(02):32-35.
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北京市大兴区土壤养分空间结构及影响因素分析

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 22 期数: 2015年02期 页码: 32-35 栏目: 出版日期: 2015-04-28
Title:
Analysis on Spatial Structure and Influence Factor of Soil Nutrients in Daxing District of Beijing
作者:
董士伟1,2, 李红1, 孙丹峰2, 张微微1
1. 北京市农林科学院农业综合发展研究所, 北京 100097;
2. 中国农业大学 资源与环境学院, 北京 100193
Author(s):
DONG Shiwei1,2, LI Hong1, SUN Danfeng2, ZHANG Weiwei1
1. Institute of Agricultural Integrated Development, Beijing Academy of Agriculture and Forestry Science, Beijing 100097, China;
2. College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
关键词:
土壤养分; 空间结构; 主成分分析; GIS
Keywords:
soil nutrients; spatial structure; principal component analysis; GIS
分类号:
S158
摘要:
为了揭示土壤养分的空间分布特征和指导土壤培肥管理，以北京市大兴区为例，首先基于地统计学和GIS技术对大兴区土壤养分进行空间克里格插值和模糊隶属度函数模型标准化处理；其次利用主成分分析方法获取了大兴区土壤养分的空间结构，即全氮、碱解氮、有机质、有效磷和速效钾所占空间比例分别为0.32，0.25，0.23，0.03，0.17；最后对土壤养分空间结构的影响因素进行了系统分析。研究表明：大兴区土壤中氮含量最高，有机质含量较高，钾含量较低，磷含量极低，整体上大兴区土壤养分高值区主要分布在东北部，低值区主要分布在西南部和中部区域；主要与大兴区土壤类型、质地、农户土地利用方式和施肥结构等密切相关。
Abstract:
In order to reveal the spatial distribution of soil nutrients and guide soil fertility management, Daxing District of Beijing was chosen as the case. Firstly, space Kriging interpolation and fuzzy membership function model standardization of soil nutrients were implemented based on geostatistics and GIS technology. Secondly, the spatial structure of soil nutrients in Daxing District was obtained by principal component analysis method, and the occupied space proportions of total nitrogen, alkali-hydrolyzable nitrogen, organic matter, available phosphorus and available potassium were 0.32, 0.25, 0.23, 0.03， 0.17, respectively. The influence factors of spatial structure of soil nutrients were systematically analyzed. The results showed that the contents of nitrogen, organic matter, potassium and phosphorus in the soils of Daxing District were highest, high, low and lowest levels, respectively. Overall, high values of soil nutrients mainly distributed in the northeast and low values mainly located in the southwestern and central region of Daxing District, and it was primarily related to soil types and textures, land uses, and farmers fertilize structures in Daxing District.

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备注/Memo

收稿日期:2014-05-12;改回日期:2014-06-05。
基金项目:北京市科技计划课题（D131100000613002）
作者简介:董士伟(1984-),男,山东泰安人,博士研究生,助理研究员,主要从事遥感与GIS在土壤资源中的应用研究。E-mail:dshiwei2006@163.com
通讯作者:李红(1973-),女,山东海阳人,博士,研究员,主要从事农业资源利用与管理研究。E-mail:lihsdf@sina.com

更新日期/Last Update: 1900-01-01