The vertical spatial variability of porosity on mm-scale was studied using the method of soil section and digital image.
利用土壤切片和数字图像方法研究了两种土壤类型的孔隙度在 mm尺度上的垂直空间变异性。
A school study on the vertical space patterns of bird community in Mulanweichang forest park;
木兰围场国家森林公园鸟类群落垂直空间格局研究
The spherical magnetic field is simulated on the undulating observation surface, vertical free-air correction is computed from harmonic series.
通过计算分析发现,测点垂直位置的变化对磁力测量精度有较大影响,为此提出了海洋磁力测量垂直空间改正的概念,并采用调和级数法对仿真数据进行垂直空间改正计算。
It simulated main quantity characteristics of yield ecology, such as biomass dynamics, vertical spatial pattern of biomass as well as their relationships with environmental factors, also it studied internal relativity.
通过对中国北方羊草草原生物量动态、生物量垂直空间格局及其与环境因子相互关系等主要产量生态数量特征的模拟与内在相关性的研究 ,结果表明 ,草地地上生物量的生长规律呈“单峰”型 ,最大地上生物量出现在 8月 5日 ,其值为1 97。