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What are the reasons for planting in plateau and mountain climate?
Generally, the altitude in the plateau area is much higher than that in the plain area, which also leads to a big gap between the climate environment in the plateau area and the plain area. In addition, the plateau area also has typical climate characteristics in the north, such as drought, little rain, cold but fertile soil.

What kinds of forage grass are suitable for plateau planting?

Pictures of Osmunda purpurea seeds

1, Osmunda purpurea: This forage grass is suitable for planting in plateau area, it is generally suitable for growing in the plateau above 1000 meters, and its best growing environment is 15~20 degrees Celsius. In addition, this forage grass likes wet and cold growing environment, which can be harvested once every three months, and the yield of this forage grass is high.

Oat picture

2. Oat: For most forage species, it is a kind of herb that can be used as human staple food, and this forage is generally suitable for sowing in spring and autumn. Its adaptability to soil and environment is very strong, which is its most important survival advantage, but this is not the reason why it is popular, but because of its high yield per mu.

Black wheat seed

3. Black wheat: This forage grass is very popular when it is used as human food. It can be used as a staple food, but when it is used as animal forage grass, it basically does not need to reach the final mature stage, and its nutrients and moisture content are preserved. It is a very healthy nutritious forage grass.

Wuhan Botanical Garden has made progress in the study on the restoration efficiency of degraded alpine grassland in Qinghai-Tibet Plateau by nutrient addition.

Release time: 2020.08.07 | Large, medium and small | Print off

Climate change and human disturbance have caused the degradation of alpine grassland ecosystem in Qinghai-Tibet Plateau. Fertilization, as an important measure to restore degraded grassland, plays a key role in nutrient cycle of alpine ecosystem. Wang Dangjun, a doctoral student in functional ecology, made a meta-analysis of published 145 studies on alpine grassland degradation and 90 studies on nutrient addition effect (N, P and N-P combined application), and quantitatively evaluated the response of plant and soil characteristics to grassland degradation and nutrient addition recovery measures. The results showed that the aboveground biomass (-47.23%), underground biomass (-43.45%), soil organic carbon (-32.35%) and soil total nitrogen (-37.97%) of degraded grassland in alpine meadow were significantly reduced compared with the non-degraded grassland. The response rate of aboveground biomass is related to the average annual precipitation, while the response rate of underground biomass is related to the interaction between average annual precipitation and average annual temperature. Combined application of nitrogen and phosphorus in degraded grassland can increase aboveground biomass of plants (+32.44%), soil total nitrogen (+10.99%), soil total phosphorus (+32.25%) and soil moisture (+9.2 1%), but reduce species richness (-45.46%). Nitrogen fertilizer increased the biomass of Gramineae, but had no significant effect on the biomass of Cyperaceae and weeds. The comparison of different nutrient addition methods shows that the combination of nitrogen and phosphorus has the best effect on the restoration of alpine grassland. Although this optimal fertilization measure can promote the restoration of degraded grassland by improving plant growth and soil nutrient content, it will lead to the reduction of plant diversity.

The research results were published in the academic journal Agriculture with the title of "Effects of nutrient addition on degraded alpine lands of the Qinghai-Tibet plateau: a meta-analysis". In terms of Ecosystems and Environment, scholars from Wuhan Botanical Garden, Northwest Plateau Institute of Biology, Beijing Forestry University, Lanzhou University, French Academy of Agricultural Sciences and many other units participated in the study. The research project of the second comprehensive scientific investigation on the Qinghai-Tibet Plateau (20 19QZKK0302) was obtained, which is a national key research and development plan.