Arid Land Geography ›› 2021, Vol. 44 ›› Issue (4): 1070-1082.doi: 10.12118/j.issn.1000–6060.2021.04.19
• Earth Information Sciences • Previous Articles Next Articles
ZHOU Xuande1(),GUO Huadong2,YANG Shengtian3,Zibibula SIMAYI3(),DENG Zutao1,LIANG Bin1
Received:
2020-04-24
Revised:
2021-02-23
Online:
2021-07-25
Published:
2021-08-02
Contact:
SIMAYI Zibibula
E-mail:zxd850706@163.com;zibibulla3283@sina.cn
ZHOU Xuande,GUO Huadong,YANG Shengtian,Zibibula SIMAYI,DENG Zutao,LIANG Bin. Temporal and spatial variation characteristics of oasis urban ecological environment in arid region: A case study of Karamay City[J].Arid Land Geography, 2021, 44(4): 1070-1082.
Tab. 1
Eigenvalues of principal components"
主成分 | 2001年 | 2006年 | 2011年 | 2016年 | ||||
---|---|---|---|---|---|---|---|---|
特征值 | 贡献率/% | 特征值 | 贡献率/% | 特征值 | 贡献率/% | 特征值 | 贡献率/% | |
PC1 | 0.0992 | 85.6377 | 0.1047 | 85.7392 | 0.0505 | 85.5012 | 0.0894 | 89.4827 |
PC2 | 0.0112 | 9.6721 | 0.0139 | 11.3759 | 0.0048 | 8.1922 | 0.0069 | 6.8943 |
PC3 | 0.0040 | 3.4805 | 0.0026 | 2.1644 | 0.0027 | 4.5911 | 0.0034 | 3.4283 |
PC4 | 0.0014 | 1.2097 | 0.0009 | 0.7206 | 0.0010 | 1.7155 | 0.0002 | 0.1947 |
Tab. 2
Basic statistic values of remote sensing ecological indices and relative indices"
指标 | 2001年 | 2006年 | ||||||
---|---|---|---|---|---|---|---|---|
最小值 | 最大值 | 均值 | 标准差 | 最小值 | 最大值 | 均值 | 标准差 | |
NDVI | -1.0000 | 0.7604 | 0.1280 | 0.1318 | -1.0000 | 0.7795 | 0.1449 | 0.1582 |
WET | -0.5470 | 0.0665 | -0.2016 | 0.0614 | -0.5733 | 0.0714 | -0.1785 | 0.0596 |
LST | 29.3201 | 57.8943 | 47.2234 | 3.3495 | 12.0327 | 38.5387 | 32.3419 | 3.0871 |
NDBSI | -0.6327 | 1.0000 | 0.1971 | 0.0890 | -0.5184 | 1.0000 | 0.1927 | 0.1156 |
RSEI | 0.0000 | 1.0000 | 0.3523 | 0.1234 | 0.0000 | 1.0000 | 0.3446 | 0.1256 |
指标 | 2011年 | 2016年 | ||||||
最小值 | 最大值 | 均值 | 标准差 | 最小值 | 最大值 | 均值 | 标准差 | |
NDVI | -0.5216 | 1.0000 | 0.1945 | 0.1968 | -0.7725 | 0.8619 | 0.2935 | 0.2601 |
WET | -0.7883 | 0.1483 | -0.1664 | 0.0692 | -1.3451 | 0.2144 | -0.0472 | 0.0764 |
LST | 19.9292 | 47.4173 | 36.2315 | 4.5555 | 15.7962 | 46.5827 | 35.8338 | 6.3602 |
NDBSI | -0.7142 | 1.0000 | 0.1600 | 0.1417 | -0.6426 | 0.5799 | 0.0730 | 0.2099 |
RSEI | 0.0000 | 1.0000 | 0.3592 | 0.2026 | 0.0000 | 1.0000 | 0.3184 | 0.2579 |
Tab. 3
Area percent of different remote sensing ecological index grades"
RSEI等级 | 2001年 | 2006年 | 2011年 | 2016年 | ||||
---|---|---|---|---|---|---|---|---|
面积/km2 | 占比/% | 面积/km2 | 占比/% | 面积/km2 | 占比/% | 面积/km2 | 占比/% | |
A | 223.70 | 5.81 | 1547.53 | 40.17 | 656.16 | 17.03 | 2107.60 | 54.71 |
B | 2637.34 | 68.46 | 1831.28 | 47.54 | 2035.42 | 52.84 | 592.43 | 15.38 |
C | 830.42 | 21.56 | 401.18 | 10.41 | 485.61 | 12.61 | 382.55 | 9.93 |
D | 127.42 | 3.31 | 70.19 | 1.82 | 519.34 | 13.48 | 416.90 | 10.82 |
E | 33.36 | 0.87 | 2.03 | 0.05 | 155.70 | 4.04 | 352.75 | 9.16 |
Tab. 4
Grade change of remote sensing ecological index"
等级 | 2001—2006年 | 2006—2011年 | 2011—2016年 | 2001—2016年 | ||||
---|---|---|---|---|---|---|---|---|
面积/km2 | 占比/% | 面积/km2 | 占比/% | 面积/km2 | 占比/% | 面积/km2 | 占比/% | |
-4 | 0.32 | 0.01 | - | - | 0.54 | 0.01 | 0.49 | 0.01 |
-3 | 6.01 | 0.16 | 0.35 | 0.01 | 13.11 | 0.34 | 3.59 | 0.09 |
-2 | 85.68 | 2.22 | 5.29 | 0.14 | 82.31 | 2.14 | 212.22 | 5.51 |
-1 | 1947.11 | 50.55 | 57.60 | 1.50 | 1794.00 | 46.57 | 1920.38 | 49.85 |
0 | 1662.55 | 43.16 | 1930.25 | 50.11 | 1312.67 | 34.08 | 797.16 | 20.69 |
1 | 126.27 | 3.28 | 1403.79 | 36.44 | 494.87 | 12.85 | 399.94 | 10.38 |
2 | 22.81 | 0.59 | 376.10 | 9.76 | 126.26 | 3.28 | 396.98 | 10.31 |
3 | 1.46 | 0.04 | 72.90 | 1.89 | 28.09 | 0.73 | 121.34 | 3.15 |
4 | 0.01 | 0.00 | 5.96 | 0.15 | 0.37 | 0.01 | 0.12 | 0.00 |
Tab. 5
Variations and dynamic attitudes of different remote sensing ecological index grades"
RSEI等级 | 2001—2006年 | 2006—2011年 | 2011—2016年 | |||
---|---|---|---|---|---|---|
增加量/km2 | 动态度/% | 增加量/km2 | 动态度/% | 增加量/km2 | 动态度/% | |
A | 1323.83 | 118.36 | -891.37 | -11.52 | 1451.44 | 44.24 |
B | -806.06 | -6.11 | 204.14 | 2.23 | -1442.99 | -14.18 |
C | -429.23 | -10.34 | 84.43 | 4.21 | -103.06 | -4.24 |
D | -57.22 | -8.98 | 449.15 | 127.97 | -102.44 | -3.95 |
E | -31.32 | -18.78 | 153.66 | 1510.76 | 197.06 | 25.31 |
Tab. 6
Mean value and niche of different remote sensing ecological index grades"
RSEI等级 | 2001年 RSEI均值 | 2001—2006年 | 2006年 RSEI均值 | 2006—2011年 | 2011年 RSEI均值 | 2011—2016年 | 2016年 RSEI均值 | |||
---|---|---|---|---|---|---|---|---|---|---|
势 | 生态位 | 势 | 生态位 | 势 | 生态位 | |||||
A | 0.1778 | -0.0399 | 0.0546 | 0.1379 | 0.0103 | 0.0606 | 0.1482 | -0.0167 | 0.0521 | 0.1315 |
B | 0.3045 | -0.0349 | 0.1104 | 0.2696 | 0.0016 | 0.1094 | 0.2712 | 0.0062 | 0.1132 | 0.2774 |
C | 0.4789 | -0.0121 | 0.1952 | 0.4668 | 0.0362 | 0.2056 | 0.5030 | -0.0021 | 0.2033 | 0.5009 |
D | 0.6914 | -0.0367 | 0.2721 | 0.6547 | 0.0317 | 0.2791 | 0.6864 | 0.0255 | 0.2913 | 0.7119 |
E | 0.8519 | 0.0190 | 0.3677 | 0.8709 | -0.0116 | 0.3453 | 0.8594 | -0.0186 | 0.3401 | 0.8408 |
Tab. 7
Latitude and longitude coordinates of gravity center of different remote sensing ecological index grades"
RSEI 等级 | 2001年 | 2006年 | 2011年 | 2016年 | ||||
---|---|---|---|---|---|---|---|---|
经度/E | 纬度/N | 经度/E | 纬度/N | 经度/E | 纬度/N | 经度/E | 纬度/N | |
A | 85°00′13.51880″ | 45°06′38.45573″ | 84°57′37.04680″ | 45°09′44.24302″ | 84°57′05.06798″ | 45°03′44.26575″ | 84°54′30.91428″ | 45°14′59.11490″ |
B | 84°54′50.28787″ | 45°13′28.15689″ | 84°52′15.42253″ | 45°13′33.02934″ | 84°53′27.15518″ | 45°16′44.03351″ | 84°54′02.83357″ | 45°10′47.48842″ |
C | 84°51′25.98427″ | 45°06′06.34960″ | 84°54′52.09637″ | 45°08′19.29840″ | 84°53′53.87569″ | 45°05′18.73948″ | 84°57′39.73842″ | 45°11′42.68208″ |
D | 85°03′51.65940″ | 45°16′40.94337″ | 84°58′57.01781″ | 45°22′49.77506″ | 84°55′47.51930″ | 45°05′30.36632″ | 84°55′18.64866″ | 45°05′43.32496″ |
E | 85°05′19.97127″ | 45°18′41.47623″ | 84°44′34.73225″ | 44°57′30.56622″ | 85°02′13.76825″ | 45°18′08.03169″ | 84°54′02.74515″ | 44°59′54.89837″ |
Tab. 8
Gravity offset distance and azimuth angle of different remote sensing ecological index grades"
RSEI 等级 | 2001—2006年 | 2006—2011年 | 2011—2016年 | |||
---|---|---|---|---|---|---|
偏移距离/km | 方位角/(°) | 偏移距离/km | 方位角/(°) | 偏移距离/km | 方位角/(°) | |
A | 6.55 | 328.65 | 11.18 | 183.62 | 20.79 | 350.84 |
B | 3.36 | 270.95 | 6.05 | 14.91 | 11.04 | 175.96 |
C | 6.08 | 47.74 | 5.72 | 192.84 | 12.83 | 22.54 |
D | 13.07 | 330.72 | 32.36 | 187.33 | 0.74 | 302.14 |
E | 47.70 | 214.80 | 44.62 | 31.06 | 35.47 | 197.55 |
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