...垂直梯度、植物群落、演替格局 [gap=573]Key words: Quangou dry upper reaches of the Shiyang River basin, the vertical gradient, plant communities, the pattern of succession ..
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Dynamic equations are used in which the vertical gradient and vertical diffusion are parameterized.
利用动力学方程组，并对其中垂直梯度项和垂直扩散项进行了参数化处理。
Therefore it is considered that the decrement of gravity vertical gradient is caused by mountain mass distribution.
分析了佘山重力垂直梯度偏小的原因，认为这是由于山体质量分布引起的。
By very simple mathematical derivations, the practical expression of (Vzz), the expression of normal vertical gravity gradient, and the comment on the accuracy were given.
本文以极简单的数学推导，给出了正常重力垂直梯度的实用表达式，并对其精度作出了评价。
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