节点文献
土壤水分空间变异性对灌溉决策的影响研究
Effects of spatial variability of soil water on irrigation schedule
【摘要】 运用经典的统计学方法和地质统计学方法 ,研究了土壤水分的空间变异性 ,将得出的合理取样数、空间相关域和等值线图用于确定中子仪测量水分前观测管的布置个数、布置距离以及布置位置 ,这对于科学合理地进行农田管理具有实际意义
【Abstract】 The methods of classical statistics and geostatistics are used in this paper to analyze the spatial variability of soil water properties. The results include the rational samples, the ranges obtained and the contour maps, which can be useful to determine the numbers, the intervals and the locations of the observation pipes when the neutron probe is used to measure the volumetric soil water. This study is very practical to manage soil water scientifically.
【关键词】 合理取样数;
地质统计学;
空间变异;
灌溉决策;
【Key words】 rational samples; geostatistics; spatial variability; irrigation schedule;
【Key words】 rational samples; geostatistics; spatial variability; irrigation schedule;
【基金】 国家“九五”攻关课题“棉花覆膜灌溉田间综合节水技术体系示范与研究”!( 95- 0 4 - 0 1)
- 【文献出处】 干旱地区农业研究 ,AGRICULTURAL RESEACH IN THE ARID AREAS , 编辑部邮箱 ,2000年02期
- 【分类号】S152.7
- 【被引频次】135
- 【下载频次】527