| 天全河流域土壤速效磷钾的空间分布特征研究 |
| |
| 引用本文： | 卢俊宇,张世熔,李婷,徐小逊. 天全河流域土壤速效磷钾的空间分布特征研究[J]. 西南农业学报, 2011, 24(4) |
| |
| 作者姓名： | 卢俊宇 张世熔 李婷 徐小逊 |
| |
| 作者单位： | 1. 四川农业大学资源环境学院,四川雅安625014;四川雅安市农业局,四川雅安625000
2. 四川农业大学资源环境学院,四川雅安,625014 |
| |
| 基金项目： | 科技部科技支撑计划(2008BAK51B01) |
| |
| 摘 要： | 土壤速效磷钾是评价土壤肥力和环境质量的重要指标之一.本文根据780个表层土壤(0～30 cm)样点数据,采用常规统计、地统计学和地理信息系统相结合的方法研究了四川天全河流域土壤速效磷钾的空间分布特征及其影响因素.结果表明,该流域土壤速效磷含量达(1.40±0.52) g/kg,碱解氮含量达(125.79±56.24) mg/kg.水稻土和潮土速效磷含量高于黄壤和紫色土,土壤速效钾含量则为水稻土＞黄壤＞潮土＞紫色土.它们的空间分布均呈由西向东逐渐减少的趋势.成土母质、地形部位、土地利用和耕地种植制度都极显著地影响土壤速效磷和速效钾的含量.
|
| 关 键 词： | 速效磷 速效钾 空间分布 地统计学 |
Study on Spatial Distribution of Available Phosphorus and Potassium in Tianquan River Basin |
| |
| LU Jun-yu,ZHANG Shi-rong,LI Ting,XU Xiao-xun. Study on Spatial Distribution of Available Phosphorus and Potassium in Tianquan River Basin[J]. Southwest China Journal of Agricultural Sciences, 2011, 24(4) |
| |
| Authors: | LU Jun-yu ZHANG Shi-rong LI Ting XU Xiao-xun |
| |
| Affiliation: | LU Jun-yu1,2,ZHANG Shi-rong1,LI Ting1,XU Xiao-xun1(1.College of Resources and Environment of Sichuan Agricultural University,Sichuan Ya'an 625014,China,2.Agricultural Bureau in Ya'an,Sichuan Ya'an 625000,China) |
| |
| Abstract: | Soil available phosphorus and potassium was an important factor to evaulate soil fertility and environmental quality.According to the chemical analysis data of soil available phosphorus and potassium contents from the 780 sampling points in topsoil(0-30 cm),the spatial distribution characteristics and influential factors of soil nitrogen in Tianquan River Basin were performed by the traditional statistics,geostatistics and software ArcGIS9.0.The results showed that the contents of soil available phosphorus ... |
| |
| Keywords: | Available phosphorus Available potassium Spatial distribution Geostatistics |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
