JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2023, Vol. 47 ›› Issue (3): 191-198.doi: 10.12302/j.issn.1000-2006.202107005
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ZHANG Jinguang(), SONG Anqi, XIA Tianyu, ZHAO Bing(
)
Received:
2021-07-05
Accepted:
2022-08-10
Online:
2023-05-30
Published:
2023-05-25
Contact:
ZHAO Bing
E-mail:zjg@njfu.edu.cn;zhbnl0118@njfu.edu.cn
CLC Number:
ZHANG Jinguang, SONG Anqi, XIA Tianyu, ZHAO Bing. Evaluating the urban park green space exposure from the perspective of the community life circle[J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2023, 47(3): 191-198.
Table 1
Evaluation scores of park green space exposure based on a 15 min community living circle"
服务维度 dimension | 评价指标 indicator | 权重 weight | 盲点值 blind spot value | 冷热点值 cold-hot spot value |
---|---|---|---|---|
数量quantity | 圈内公园绿地数量/个 | 1 | 0 | 0 |
面积area | 圈内公园绿地面积/hm2 | 1 | 0 | >0 |
质量quality | 圈内公园绿地质量累计值 | 1 | 0 | >0 |
距离proximity | 圈内访问公园绿地最短路径距离/m | 1 | >1 200 | ≤1 200 |
分值value | 0 | 0< |
Table 2
Cold-hot spot classification of park greenspace exposure based on a 15 min community living circle"
分级 classification | 综合暴露度 integrated exposure value | 居住小区 数量/个 number of communities | 居住小区 占比/% proportion of communities |
---|---|---|---|
盲点blind spot | 0 | 409 | 20.12 |
冷点cold spot | 0.001~0.148 | 521 | 25.63 |
次冷点subcold spot | 0.149~0.283 | 508 | 24.98 |
次热点subhot spot | 0.284~0.449 | 383 | 18.84 |
热点hot spot | 0.450~0.782 | 212 | 10.43 |
Table 3
The number and proportion of spatial units based on location entropy"
区位熵等级 Qj level | Qj | 居住小区数量 number of communities | 居住小区 占比/% proportion of communities |
---|---|---|---|
极低very low | Qj≤ 0.1 | 527 | 25.92 |
较低lower | 0.1 <Qj≤0.6 | 442 | 21.74 |
中等medium | 0.6 <Qj≤1.5 | 392 | 19.28 |
较高higher | 1.5 <Qj≤5 | 439 | 21.59 |
极高very high | Qj>5 | 233 | 11.47 |
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