摘要
使用土壤水分快速测量装置,在北京郊区进行了不同面积、大样本的田间墒情测量。实测的土壤体积含水率数据经过统计分析、检验,得出初步结论:田间土壤水分总体上符合对数正态分布,不存在明显的空间趋势,各项异性比较小,空间自相关数值不大。田间土壤墒情分布特性的研究,为田间精量灌溉提供了科学依据。
The experiments of soil moisture content in different helds nave been aone Dy sou moisture fast - measurement instrument. The soil volume moisture of the samples was analyzed and tested by means of statistical methods. The abecedarian results are that soil volume moisture accord with logarithmic normal distribution law generally. There are not obvious special trend. The variability and self-correlative coefficient is little. The study on the distribution of soil moisture provides scientific foundation for variable irrigation in a field.
出处
《莱阳农学院学报》
2005年第4期313-317,共5页
Journal of Laiyang Agricultural College
基金
国家高技术研究发展计划(863计划)重大专项课题"作物水分信息采集与精量控制用水技术研究与开发"(2002AA6Z3071)
关键词
墒情
土壤水分
土壤水分分布
soil moisture content
soil moisture
space distribution of soil moisture
