江西省都昌县山地与平原植被界线提取
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齐文娟, 杨晓梅
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Mountain and Plain Vegetation Boundaries Extraction in Duchang County Province Jiangxi
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QI Wenjuan,YANG Xiaomei
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| 表2 地形位置指数地貌位置类型、相关地形位置指数的阈值等级及坡度范围 |
| Tab. 2 Types of TPI_Landform, levels of TPI threshold and ranges of slopes |
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| 编号 | 等级 | 邻域TPI | 坡度 | | 小 | 大 | | 1 | 低地：小范围凹陷区/谷地 | ≤-1 | ≤-1 | | | 2 | 较为靠上的平缓小谷,平缓洼地 | ≤-1 | -1<TPI大<1 | | | 3 | 山顶部位平缓的洼地/凹陷 | ≤-1 | ≥1 | | | 4 | 低地：大范围凹陷区/谷地;部分泥炭沼泽地 | -1<TPI小<1 | ≤-1 | | | 5 | 平面,平地≤2° | -1<TPI小<1 | -1<TPI大<1 | ≤2° | | 6 | 斜坡,坡地>2° | -1<TPI小<1 | -1<TPI大<1 | >2° | | 7 | 平缓高地 | -1<TPI小<1 | ≥1 | | | 8 | 低地上的局部高地 | ≥1 | ≤-1 | | | 9 | 中坡地区的小山脊 | ≥1 | -1<TPI大<1 | | | 10 | 山顶,山脊 | ≥1 | ≥1 | |
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