Original soil afforesting method of moderate and severe saline and alkaline land

Abstract

The method provides an original soil afforesting method of moderate and severe saline and alkaline land. After tamarix chinensis seedlings in a greenhouse nursery garden are exercised and restrained in growth for root development, the seedlings are transplanted in the moderate and severe saline and alkaline land to perform original soil cultivation. Simultaneously, salix psammophila, bamboo willow and fraxinus chinensis roxb are planted between tamarix chinensis planting belts. According to the original soil afforesting method of the moderate and severe saline and alkaline land, the seedlings are selected to perform interplanting, original soil seedling planting is adopted to afforest the moderate and severe saline and alkaline land, and the problem that methods of traditional soil dressing planting, soil improvement, desalinization through irrigation and the like are high in cost and easy to suffer saline erosion is avoided. The original soil afforesting method of the moderate and severe saline and alkaline land is low in cost, becomes effective rapidly, can form novel ecological environment at the moderate and severe saline and alkaline land rapidly, achieves ecological balance, and avoids saline erosion. Four kinds of seedlings are interplanted simultaneously, and the tree species can supplement each other to achieve ecological balance so as to enable the seedlings to survive and grow easily and form a virtuous cycle.

Description

technical field [0001] The invention relates to the field of ecological and environmental protection science and technology, in particular to an original soil ecological greening method for land reclamation by sand blowing and seaside and other medium-severe saline-alkali lands. Background technique [0002] Sand blowing, also referred to as land reclamation, refers to the construction of dikes on beaches or shallow seas to isolate the external sea water, and drain the water in the dikes to make them land. However, the salinity of the fields formed by sand blowing is very high. At the same time, most of the other coastal fields are moderately to severely saline-alkali lands with very high salinity. Moderate to severe saline-alkali land mainly contains chloride or sulfate, with a salt content between 0.3% and 3%. Medium-severe saline-alkali soil has low organic matter content, low soil fertility, poor physical and chemical properties, and many anions and cations that are har...

AI Technical Summary

Problems solved by technology

This method is very unrealistic in the coastal areas, because the amount of fresh water in the coastal areas is small, and the salt content of the groundwater is also high. If a large amount of fresh water from other places is used to irrigate the saline-alkali land, the gain outweighs the gain, and the saline-alkali is easy to backlash