With regard to the well-growing vegetation and the comparison of soil nutrients in different vegetation types, the results of soil nutrient determination and analysis indicated that the order of total nitrogen and available nitrogen in forest land with good vegetation growth was Hippophae rhamnoides> Hedgehog and seabuckthorn. Woodland> Mixed seabuckthorn forest land. It can be seen that the impact of nitrogen on seabuckthorn is better than that of other forest lands, mainly because seabuckthorn has nitrogen fixation, and black locust also has nitrogen fixation. Compared with Chinese pine, there is no nitrogen fixation, so soil nitrogen content in seabuckthorn and hedgehog buckthorn forest lands Are higher than the pine forest of seabuckthorn. Brandt VSM300 Secondary Shaker Screen
SJ-Brandt VSM 300 secondary shaker screen is the replacement screen for the drying module of Brandt VSM 300 shale shaker. It is installed on the front of the low deck(prirmay) screen, The main function is to reduce fluid content on cuttings discharged from the primary screens. These screens are normally used with oil based drilling mud, but are equally suitable with water based drilling mud if required.
Technical Parameter
Adaptable Shale Shaker Model
SJ-VSM 300SE primary shaker screens are used as the substitute screen for
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The content of total potassium and total phosphorus in each woodland has little difference because total phosphorus and total potassium are mainly determined by soil parent materials. The research area is located in the Loess Plateau, and the sampling point of soil nutrient analyzer is in the same watershed. On the same slope, the difference in soil parent material is not significant, so the difference in its content is not significant. The relatively high content of available potassium is mainly due to the relatively high content of total potassium in the soil, high activity of potassium, easy solubility in soil moisture, and adsorption on the surface of soil colloids, which can supply available potassium for plant absorption and utilization. The content is relatively high, so the content of available potassium in soil is higher.
The vegetation growth was poor. Soil nutrients of different vegetations were measured and compared with soil nutrient analyzers. In the mixed forest land plant configuration, the allocation of mixed forest lands of H. pseudoacacia was better in improving soil nutrients than in mixed forests of seabuckthorn, which may be due to the The impacts resulted in relatively less species and quantities of undergrowth plants in mixed forests of Seabuckthorn and Pinus tabulaeformis. However, the species and quantity of undergrowth in mixed forests of Hedgehog thornbush are high and the biodiversity is high.
In the woodland with poor vegetation growth, the order of the content of soil nutrients is basically the same as that of vegetation growth, and they all show that the difference of seabuckthorn> difference in sea buckthorn> difference in seabuckthorn and oil sand. Compared with the soil nutrient analyzer, the difference in the nutrient content between the poorly-growing H. pseudoacacia mixed forest and the seabuckthorn decreased, and it was smaller than the difference between the well-established H. pseudoacacia mixed forest and the well-developed sea-buckthorn. Therefore, the soil nutrient content of the mixed forest of sea buckthorn and Robinia pseudoacacia is higher, and the improved soil is better than the mixed forest land of Pinus tabulaeformis.
Brandt VSM 300 Shaker Screen
Replacement Secondary Screens for Drying Deck of Brandt VSM 300 Shaker
Competitive Advantage
