搜索结果: 1-6 共查到“知识库 土壤学 water content”相关记录6条 . 查询时间(0.087 秒)
Evaluations of the effects of soil properties and electrical conductivity on the water content reflectometer calibration for landfill cover soils
soil electrical conductivity soil index properties time domain reflectometry volumetric water content WCR calibration
2017/4/6
This study presents soil-moisture calibrations using low-frequency (15–40 MHz) time domain reflectometry (TDR) probe, referred to as water content reflectometer (WCR), for measuring the volumetric wat...
Comparison of two sensors ECH2O EC-5 and SM200 for measuring soil water content
bulk density CaCO3 ECH20 soil moisture sensor EC-5 fraction of sand particles SM200 sensor soil and soil water salinity soils of the Czech Republic soil water content
2015/3/3
The goal of this study was calibration of the ECH20 soil moisture sensor EC-5 and the sensor SM200 for selected soils of the Czech Republic. Based on the soil maps of the Czech Republic and various cl...
Spatial and Temporal Distribution of Soil Water Content in Fields under Different Vegetation Conditions Based on TDR Measurements
electromagnetic wave Andisol multiple probes with different lengths
2009/9/10
TDR (Time-domain reflectometry) is an advanced method for monitoring the water content in fields.TDR measurements can provide accurate information about vegetation effects on both spatial and temporal...
Effects of Inter-Row Strip Tillage on Soil Water Content, the Growth and Yield of Soybean (Glycine max L.) in Upland Field Converted from Paddy Field
Inter-row strip tillage Soil moisture Soybean (Glycine max L.) Tillage Upland field converted from paddy field Yield
2009/7/7
We adopted the 'inter-row strip tillage' (IST), in which furrows between rows are tilled and seed is sown on the ridge which is covered with the tilled furrow soil, to the soybean cultivation in upl...
牧场土壤含水率与坚实度空间变异与相关性分析（Determining Spatial Variability of Water Content and Hardness in Pastureland）
牧场草地 土壤 含水率
2009/5/22
利用土壤水分/圆锥指数复合测量装置，应用精细农作技术体系网格定点测量与GPS定位，在一块面积约1.27hm2的草地上获取了土壤含水率与坚实度空间分布基础数据，并针对采样过程中出现的数据缺失，用偏最小二乘法对数据进行修补。然后运用克里格插值法进行数字化成图，并在此基础上分别对含水率与坚实度的空间变异性及两者的相关性做了分析。
The Effect of Water Content on the Penetration Resistance of Different Soils, and Regression Models
Water Content Penetration Resistance Different Soils Regression Models
2009/1/16
The purposes of this study were to determine the relationships between soil water content and soil penetration resistance, and to develop regression models for comparing penetration resistance in dif...