Analysis of Soil Condition of Tibetan Plateau by Soil Tester

The soil ecological environment in the Tibetan Plateau is very fragile. In order to protect the local original ecological environment, local workers use soil testers to conduct comprehensive monitoring and analysis of the soil environment in order to protect the local soil environment and the original ecological vegetation.
The soil tester can detect various soil factors such as soil temperature, humidity, nutrients, salinity, and acid and alkali, and provide evaluation indicators for soil productivity and degradation. In the process of material and energy exchange between soil, vegetation, and atmosphere at the northern Tibetan Plateau Play an important role. By using a soil tester to analyze the soil environment in the Tibetan Plateau from May to May, the following results can be obtained.
At the end of May, the average monthly temperature exceeded 0 degrees in most areas. The northwest and northern parts of the Tibetan Plateau were the Kunlun Mountains and the Tanggula Mountains. The soil in the high-altitude areas began to thaw, and the surface was relatively humid. The drought mainly occurred in the Nyima and Southwest of the west. Part of Bangor, Shenzha. With the increase of temperature in June, the soil drought conditions in the southwest began to expand, and the normalized vegetation index values ​​in most parts of Bangor, Shenzha, Nyima and Shuanghu exceeded 0.65, and the soil moisture was very low. Soils in parts of Andor and Naqu counties began to experience drought, but the soil in the eastern region and Tanggula Mountains was still relatively moist. Entering the rainy season in mid-July, the temperature rises while the precipitation increases rapidly. The growth of the vegetation begins to approach the optimal state. The soil drought in the middle meadows and grasslands is relieved, but it is still dry in the western areas of Shenzha and Nyima, in addition to Kunlun. In the mountainous area and in the Hoh Xil area, the humidity of the desert-covered soil was low, and the mean value of the normalized vegetation in the study area decreased from 0.6 in June to about 0.54, which was also related to the alleviation effect of vegetation on temperature. From the test results, it can be seen that as vegetation growth begins to decline, soil aridity begins to intensify in some areas, and soil moisture is low in the western and southwestern parts of northern Tibet. In September and October, with the yellowish vegetation and reduced precipitation, the soil drought continued to the Selinchu Lake Basin and parts of Nagqu and Andor, while the high-altitude Kunlun Mountain and Tanggula Mountains and other areas suffered from evapotranspiration due to temperature drop. The effect is reduced and the increased temporary snowmelt melts, causing a slight increase in soil moisture.
The above is the result of analyzing the soil environment of the northern Tibetan Plateau using a soil tester. Local staff can follow this rule to protect and control the original ecological environment of the northern Tibetan Plateau and make a Some contributions.

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