摘要
设计了一个土壤机械阻力连续测定系统。利用试验所得数据,初步探讨了土壤机械阻力的空间变异性和分形特征。结果表明,土壤机械阻力表现出空间变异结构,在一定范围内存在空间相关现象,用半方差法和功率谱密度法计算出土壤机械阻力的分维值分别为1.79~1.91和2.12~2.30。
Soil mechanical resistance is an important mechanical property of soil, we should appreciate researches on its measurement and application. Therefore, a set of continuous testing system consisting of hardware and software had been developed. Spatial variability and fractal characters of soil mechanical resistance were examined. The results show that soil mechanical resistance is imbued with spatial variation-structure, and there exists spatial correlation phenomenon. The fractal dimensions were estimated in...
出处
《农业机械学报》
EI
CAS
CSCD
北大核心
2006年第11期70-73,79,共5页
Transactions of the Chinese Society for Agricultural Machinery
关键词
土壤机械阻力
连续测定
空间变异性
分形特征
Soil mechanical resistance
Continuous measurement
Spatial variability
Fractal characters
