1) bulk density and soil water
土壤容重及水分
1.
Spatial variability of bulk density and soil water in a small catchment of the Loess Plateau;
黄土高原小流域土壤容重及水分空间变异特征
2) bulk density
土壤容重
1.
Design of multi-segment in situ soil sampler testing bulk density;
土壤容重测定用分段式原状取土器的设计
2.
The bulk density was measured with steel columns.
土壤容重、土壤饱和含水率和土壤饱和导水率,以及土壤水分特征曲线是与土壤水分入渗、蒸发、土壤侵蚀及污染物运移有关的重要的土壤水分参数。
3.
The data of soil bulk density,topographic factors and land types were obtained by soil sampling and measurements,deriving from DEM and remote sensing image,respectively.
运用经典统计和地统计学方法,结合地理信息系统(GIS),探讨侵蚀黑土表层土壤容重空间分异与地形和土地利用的关系。
3) Soil bulk density
土壤容重
1.
Effect of soil bulk density on root system architectures of grapevine※;
土壤容重对葡萄根系构型的影响
2.
Effects of subsoil bulk density on late growth stage photosynthetic characteristics and grain yield of maize (Zea mays L.).;
下层土壤容重对玉米生育后期光合特性和产量的影响
3.
Effects of soil bulk density on the growth of maize root system under different water condition;
不同土壤水分条件下土壤容重对玉米根系生长的影响
4) Soil water flow equation for changing bulk density
变容重土壤水分运动方程
5) soil dry bulk density
土壤干容重
1.
The results indicated that tillage soil water infiltration capacity has larger changes in agricultural production cycle,with the change of soil water content from high to low water content;soil dry bulk density showed a trend of increase and soil water infiltration capacity showed a trend of decrease;in the period of crop .
试验结果表明:耕作土壤的入渗能力在农业生产周期内变化较大;耕作土壤由高含水量到低含水量的变化过程中,土壤干容重呈增大趋势,土壤入渗能力呈减小趋势;作物生育期内,耕作土壤入渗能力衰减主要是由于土壤结构的变化所导致的。
6) water capacity of soil
土壤水库容
1.
Based on the analyses of the double effects of soil denudation and sediment deposition with the decrease of water capacity of soil and the increase of quantity of flood, the double effects a.
在分析土壤剥蚀与泥沙堆积和减少土壤水库容与增加洪水量双重效应的基础上,深入探讨了水土流失对洪涝灾害的叠加效应及负面影响;导致在同样降雨条件下,加剧了洪涝灾害的发生频率和灾害程度。
补充资料：土壤有效水分
土壤有效水分
available soil moisture
turang youxiao shuifen土坡有效水分(available 5011 moisture)土壤中含有的大于凋萎湿度的水分贮存量(S)。某一厚度土层的土壤水分贮存量(毫米)计算公式为: S二(W‘环认少x p xh火0.1式中W为土壤湿度(质量湿度%);H么为凋萎湿度(%);p为土壤容重，单位为克/厘米”;h为土层厚度(厘米)。土壤有效水分贮存量表示土壤中植物可以吸收利用的水分数量，因而是决定植物生长状态、田间管理措施，特别是灌溉措施(如灌水定额)的重要指标。(邓根云)
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条