Planting method for protection forest in northwest desert area

Abstract

The invention discloses a planting method for a protection forest in a northwestern desert area. The method is characterized in that a wind and sand frontier area without vegetation at the periphery of an oasis is selected, a plant tree line band, a shrub line band and a herb line band are constructed from outside to inside in sequence in a main wind direction, and the protection forest suitable for the northwest desert area is cultivated through planting of plants and water and fertilizer management after planting. Compared with the prior art, the planting method has the advantages of high temperature resistance, cold tolerance, salt and alkali resistance, sand burial resistance, drought tolerance, a low occurrence rate of pests and diseases and wide adaptation; the selected plants are all drought-resistant, water-saving and sand-preventing plants, a configuration pattern of combination of trees, shrubs and herbs is adopted, the community stability is high, the efficiency of wind prevention and sand fixation is guaranteed, direct economic benefits can be generated at the same time, the generated economic benefits can continue to maintain the management and protection investment ofthe protection forest and even have surpluses, the effects of wind prevention and sand fixation are achieved, the environmental quality is improved, and meanwhile, the enthusiasm of local people formanagement and protection of the protection forest is greatly improved.

Description

technical field [0001] The invention relates to a method for planting shelterbelts in a desert area in northwest China, belonging to the field of sand prevention and control. Background technique [0002] Land desertification and desertification are relatively serious ecological problems in the arid and semi-arid areas of Northwest China, threatening regional security. The windbreak and sand-fixation system in arid areas is an ecological protection barrier within the oasis and an important guarantee for normal production and life within the oasis. Some scholars have The configuration methods and models of shelterbelts are studied, involving the vertical configuration method of shelterbelt system, the comprehensive matching method of grass pasture shelterbelt construction, the method of planting oasis shelterbelt in arid desert area, etc. In China, an oasis comprehensive shelterbelt system with farmland shelterbelts, windbreak and sand-fixing dry forests and natural forests a...

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Problems solved by technology

[0003] However, there are generally few plant materials suitable for the construction of windbreak and sand-fixation forests in the arid and semi-arid areas of Northwest China, and the shelterbelts in the frontier areas of wind and sand generally focus on protection benefits such as windbreak and sand fixation, and have ecological protection benefits and indirect economic benefits, but few Pay attention to the development and application of windproof and sand-fixing plants with direct economic value. The planting mode is single and the stability is poor. In addition, the self-recovery ability of the ecosystem is weak and the maintenance cost is high. To ensure the normal growth of shelterbelts and achieve the effect of windbreak and sand-fixation, investment A lot of manpower, material resources and financial resources, the average cost of management and maintenance per mu is more than 500-900 yuan, but there are few economic benefits. Due to this high investment and low income, some areas have no direct economic benefits. The phenomenon of poor protection and the death of protective forests restricts the effectiveness of windbreak and sand fixation forest construction

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