| 生境因素 Habitat factor | |
崎岖度
Roughness (ROU) | 250 m × 250 m网格内的崎岖度
Roughness within 250 m × 250 m grids | 连续变量
Continuous | ψ | 1.55 |
夏季归一化植被指数
Summer NDVI (SNV) | 夏季(7月)平均NDVI
Average NDVI in summer (July) | 连续变量
Continuous | ψ | 1.73 |
冬季归一化植被指数
Winter NDVI (WNV) | 冬季(1月)平均NDVI
Average NDVI in winter (January) | 连续变量
Continuous | ψ | 1.72 |
| 人类因素 Human factor | |
距道路距离
Road (ROA) | 距最近道路的距离
Distance to the nearest road | 连续变量
Continuous | ψ | 1.30 |
距居民点距离
Residence (RES) | 距最近居民点的距离
Distance to the nearest residence | 连续变量
Continuous | ψ | 1.49 |
距农田距离
Cropland (CRO) | 距最近农田的距离
Distance to the nearest cropland | 连续变量
Continuous | ψ | 2.63 |
| 生物气候因素 Bioclimate factor | |
| 最冷月最低温 Minimum temperature of coldest month (TMI) | 最冷月最低温
Minimum temperature of coldest month (BIO 6) | 连续变量
Continuous | ψ | 2.09 |
最干月降水量
Precipitation of driest month (DPR) | 最干月降水量
Precipitation of driest month (BIO 14) | 连续变量
Continuous | ψ | 1.46 |
| 地表覆盖因素 Landcover factor | |
| 农田-自然植被占比 Cropland-natural vegetation percentage (CVP) | 农田-自然植被镶嵌带面积占比*
Percentage area of cropland-natural vegetation mixture* | 连续变量
Continuous | ψ | 1.50 |
草地占比
Grassland percentage (GRP) | 草地面积占比*
Percentage area of grassland* | 连续变量
Continuous | ψ | 1.60 |
| 草地-灌丛-森林占比 Grassland-shrub-forest percentage (GSP) | 草地-灌丛-森林镶嵌带面积占比*
Percentage area of grassland-shrub-forest mixture* | 连续变量
Continuous | ψ | 1.23 |
| 针叶林占比 Needle-leaved forest percentage (NEP) | 针叶林面积占比*
Percentage area of needle-leaved forest* | 连续变量
Continuous | ψ | 1.69 |
阔叶林占比
Broad-leaved forest percentage (BRP) | 阔叶林面积占比*
Percentage area of broad-leaved forest* | 连续变量
Continuous | ψ | 2.46 |
| 季节因素 Season factor | |
季节
Season (SEA) | 生长季(5-10月)或非生长季(11月至次年4月)
Growing season (May-October) or non-growing season (November-next April) | 类型变量
Categorical | p | - |