A method of inducing rapid recovery of natural vegetation in bare land
A technology for rapid restoration and natural vegetation, applied in the field of environmental governance engineering, can solve the problems of unsustainable, high cost of artificial vegetation construction, management and protection, and difficulty in restoring natural vegetation, so as to promote restoration and reconstruction, increase soil seed banks, improve Effects of nitrogen fixation capacity and growth rate
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Embodiment 1
[0049] This embodiment provides a method for inducing the natural preparation of bare land to quickly recover; in 2005, the water level of Yanqing Guanting Reservoir in Beijing declined, and a large amount of bare wasteland appeared in the reservoir area, the vegetation was sparse, and the surface coverage was less than 10%. The serious soil erosion has become the main source of air and water pollution in the reservoir area. In July 2006, the area selected imported alfalfa varieties Golden Queen and Satawang grass with a germination rate of 95% and a purity of 97% to establish artificial grasslands to induce the recovery of native natural vegetation;
[0050] Described method is specifically:
[0051] 1) Coating rhizobia with alfalfa and saldawang at a weight ratio of 2:1 to obtain grass seeds; wherein, the weight ratio of alfalfa and salsawang to the rhizobia is 10:1;
[0052] 2) adding diammonium phosphate to the grass species described in the 4:3 weight ratio to make a mix...
Embodiment 2
[0058] This example provides a method for inducing the natural preparation of bare land to quickly recover; in 2001, 20,000 mu of natural grassland in the Bashang area of Hebei Province was seriously degraded, and a large area of the ground surface was exposed, and the vegetation coverage in some sections was less than 20%. Among them, 500 mu of sandy bare land will be planted with artificial grassland to quickly cover the surface and induce the restoration of natural vegetation. When planting, domestic alfalfa varieties Grassland No. 2 and Shadawang with a germination rate of 93% and a clarity of 95% were selected;
[0059] 1) Coating rhizobia with alfalfa and saldawang at a weight ratio of 2:1 to obtain grass seeds; wherein, the weight ratio of alfalfa and salsawang to the rhizobia is 10:1;
[0060] 2) adding diammonium phosphate to the grass species described in the 4:3 weight ratio to make a mixed fertilizer;
[0061] 3) Then use a tractor with a five-share plow to pl...
Embodiment 3
[0066] This example provides a method for inducing the natural preparation and rapid recovery of bare land; in 2013, 300 mu of deserted desert land in Tongliao, Inner Mongolia, the surface was bare, and the vegetation coverage was less than 15%. Alfalfa varieties Algonquin and Satawan with 95% germination rate and 95% clarity coated with rhizobia;
[0067] 1) Coating rhizobia with alfalfa and saldawang at a weight ratio of 2:1 to obtain grass seeds; wherein, the weight ratio of alfalfa and salsawang to the rhizobia is 10:1;
[0068] 2) adding diammonium phosphate to the grass species described in the 4:3 weight ratio to make a mixed fertilizer;
[0069] 3) Use the five-share plow attached to the tractor to plow the soil to a depth of 20 cm, and then use the rotary tiller to level and suppress the land. Carry out drill sowing by 2-4 row wheat seeders in June, the sowing rate of described mixed fertilizer seed is 7.0kg / mu, row spacing 15cm, suppresses after sowing;
[0070] 4)...
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