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应用模型结合的方法模拟了3个空间异质性等级预案下反应变量(气候变化下景观水平的树种分布面积)的变化情况,并分析模拟结果在预案之间的差异性,探讨了环境空间异质性对样地观测到的树种对气候变化响应向更大空间尺度外推的影响.结果表明:空间异质性在一般情况下对样地数据向土地类型尺度外推没有影响,而对样地尺度外推到海拔带尺度的影响则有较复杂的情况.对于对气候变化不敏感的树种以及非地带性树种,空间异质性对样地数据向海拔带尺度外推没有影响;对于大多数对气候变化敏感的地带性树种而言,空间异质性对样地数据向海拔带尺度外推则有影响.
The change of response variables (distribution level of tree species under the landscape level under climate change) under three spatial heterogeneity level scenarios was modeled by a combination of models. The differences between simulation results in the scenarios were analyzed. The results showed that spatial heterogeneity had no effect on extrapolation of plots to the scale of land types in general, The extrapolation of the scale to the scale of the altitude scale is more complex, and for the species insensitive to climate change and the non-zonal species, the spatial heterogeneity has no effect on the extrapolation of the sampling plots to the elevation scale. For large For most zonal species that are sensitive to climate change, spatial heterogeneity has an impact on the extrapolation of plots to the elevation scale.