我们重新定义物种存在概率值≥0.5的空间单元为半枫荷适生区，物种分布概

We Redefining the space unit probability values ​​≥0.5 species is Pterospermum suitable area, species distribution probability value <0.5 space unit area for the discomfort of Health, in order to establish in the past, Pterospermum the current and future climate change scenarios distribution the presence / absence of (0,1) matrix, suitable area assigned to the presence of (1) data, does not apply to the assignment generation region is absent (0) data.

We redefine the spatial unit of species existence probability value of 0.5 as the semi-maple load living area, the space unit of species distribution probability value 0.5 is the discomfort zone, so as to establish the existence/non-existence of the second half of the maple load distribution in the past, current and future climate change scenarios /2)matrix, the living area assignment value is the existence (1), the discomfort zone is not present (0) data.

We redefine the spatial unit with probability value of species existence ≥ 0.5 as the suitable area of half maple, and the spatial unit with probability value of species distribution < 0.5 as the unsuitable area, so as to establish the existence / nonexistence (0,1) matrix of half Maple under the past, current and future climate change scenarios. The suitable area is assigned as the existence (1) data, and the unsuitable area is assigned as the nonexistence (0) data.