【摘 要】
:
应用灰色关联度方法,对位于青藏高原内陆的共和盆地1985—2005年21年间天然草地产草量与水、热两因子的关联程度进行分析。结果表明:水、热两因子与产草量的关联度基本相近,
【机 构】
:
青海省海南州气象局,青海省海南州气象局,青海省海南州草原工作站,青海省海南州气象局,青海省海南州气象局 共和813000,共和813000,共和813000,共和813000
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应用灰色关联度方法,对位于青藏高原内陆的共和盆地1985—2005年21年间天然草地产草量与水、热两因子的关联程度进行分析。结果表明:水、热两因子与产草量的关联度基本相近,但在该区域降水量相对稳定的情况下,热量条件是主导因子,尤其是4—8月温度的高低,是决定当年天然草地产草量的关键因素。
By using the method of gray relational degree, the correlation between grassland productivity and water and heat two factors during the 21 years from 1985 to 2005 in the Republican Basin inland of the Qinghai-Tibet Plateau was analyzed. The results showed that the correlation between water and heat was similar to that of grass yield. However, when the precipitation in this area was relatively stable, the heat condition was the dominant factor, especially the temperature in April-August, Grassland grass production of the key factors.
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