That has practical and scientific significance to study the dynamic law of soil moisture.

研究黄土高原土壤水分变化规律，有着极其重要的科学和实际意义。

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Measurement of soil moisture is one of important operation of agrometeorological observer.

土壤水分测定是农业气象观测员的一项重要业务之一。

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Soil moisture dynamics simulation is an important item of soil moisture monitoring and forecasting.

土壤水分的动态模拟是土壤墒情监测及预测预报的重要内容。

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The mulch also improves the ability of the soil to hold moisture.

VOA: special.2009.06.30

This should enable it to determine about 10 or 11 classes of soil moisture.

BBC: Smos 'space chopper' returns first global maps

And in some of the world's great winemaking regions, such as California, geological variations mean that the ability of soil to retain or lose moisture can change within distances of a few metres.

ECONOMIST: Winemaking and radar

They will look, too, at the amount of ice in the ground, and the temperature and the moisture of the soil.

ECONOMIST: Global warming and the permafrost