The grassland formation and succession in Yellow River Delta were discussed. The salinization, grassland degradation and ecosystem deterioration in the region were described.
论述了黄河三角洲草地的形成与演替及当前草地碱化、退化、植被减少、生态系统恶化情况。
The secondary salinization of grassland soil is the main reason for the formation of secondary saline-alkaline soil patches in grasslands in Songnen Plain.
草地土壤次生盐渍化是松嫩平原次生盐碱斑形成的主要原因。
From the viewpoint of soil formation, the principle of rational use of alkaline grassland and reclamation of soda solonchak should be the protection and restoration of vegetative covers of the soils.
按照土壤发生的观点，合理利用碱性草原和改良苏打盐(碱)土的原则，应是保护和恢复植被。
From the viewpoint of soil formation, the principle of rational use of alkaline grassland and reclamation of soda solonchak should be the protection and restoration of vegetative covers of the soils.
按照土壤发生的观点，合理利用碱性草原和改良苏打盐(碱)土的原则，应是保护和恢复植被。
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