青海省共和县天然草地牧草产量结构特征分析

Characterization of Forage Yield Structure in Natural Grassland of Gonghe County of Qinghai Province

为了研究青海省共和县天然草地牧草产量结构特征,对其经济类群产量进行了分析和相关性计算。结果表明,共和县天然草产量最高的为高寒草甸类天然草地,优势种植物多为莎草科植物;除温性荒漠类、低地草甸类天然草地外,其他天然草地类优良牧草产量占总产量比重较大,这说明共和县天然草地整体退化程度较轻,可以通过生态工程进行修复。

In order to assess the characteristics of forage yield structure in natural grassland of Gonghe County of Qinghai Province, the yield of economic groups of forage was calculated and investigated by correlation analysis. The results showed that the highest forage yield was observed in alpine meadow grassland and the dominant species were Cyperaceae plants; except for temperate grassland and lowland meadow grassland, the other natural grassland accounted for most of the yield of high quality forage, indicating that the degeneration degree of natural grassland in Gonghe County was generally slight and it could be restored by ecological engineering.