Soil Moisture Tester Measurements and Relationships to Different Locations of Trees

With the increase of the distance from the tree trunk, the soil moisture reserves increased with the soil moisture tester. This may be due to the strong transpiration of the shrubs such as Hemipressus, Caragana, Red Sand, Haloxylon ammodendron, and Overlord. The root system continuously absorbs water from the deep layers and the surrounding soil, and the root system is deep and dense at a distance of 20cm from the base of the trunk, making it 20cm away from the base of the trunk. Soil moisture reserves are greater than 60cm and 100cm; this phenomenon needs further observation and research.

Different types of shrubs have different effects on the distribution of soil moisture in the horizontal direction. Half-day flowers, Caragana korshinskii, Red sand, Haloxylon ammodendron, Overlord and other water-consuming shrubs are covered. The soil moisture tester analyzes that the soil moisture content is more than 60cm and 100cm away from the base of the trunk. It is under shrubs with relatively low water consumption, such as Caragana kangaroo, desert kanji, pupa, sand mulberry, and Mongolian quail.

As the distance from the trunk increases, the soil moisture content does not change much. In the 20-80cm layer of soil moisture, the soil moisture content was the highest at 100cm from the trunk; the root system developed and deepened at 20cm from the trunk continuously absorbed water from the deep soil, which supplemented the soil moisture consumption of the layer, and caused the soil moisture content to be greater than 60cm from the trunk. In the soil moisture adjustment layer below 80 cm, the farther away from the trunk, the higher the soil moisture content.

In the course of vegetation restoration, shade vegetation such as Caragana in the desert, Caragana, Caragana, Carassius auratus, etc. should be selected. In sunny slopes, vegetation with low soil water consumption, such as sand mulberry, Haloxylon ammodendron, should be selected. As the distance from the trunk increases, the soil moisture content increases. The analysis of soil moisture tester shows that the soil water level distribution characteristics are different at different soil depths, 20cm, 60cm, and 100cm from the base of the trunk. The 0-20 cm soil layer is a weak layer of soil moisture.

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