Arid Zone Research ›› 2022, Vol. 39 ›› Issue (3): 955-967.doi: 10.13866/j.azr.2022.03.29
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HOU Qingqing1(),CHEN Ying1,2(),PEI Tingting2,JI Zhenxia3,XIE Baopeng2
Received:
2021-10-09
Revised:
2022-01-18
Online:
2022-05-15
Published:
2022-05-30
Contact:
Ying CHEN
E-mail:1307243647@qq.com;cheny@gsau.edu.cn
HOU Qingqing,CHEN Ying,PEI Tingting,JI Zhenxia,XIE Baopeng. Analysis of cultivated land’s spatio-temporal changes and influencing factors in Gansu Province in recent 25 years[J].Arid Zone Research, 2022, 39(3): 955-967.
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Tab. 1
Land use transfer matrix in Gansu Province from 1995 to 2005 /km2"
土地利用类型 | 耕地 | 林地 | 草地 | 水域 | 建设用地 | 未利用地 | 1995年总计 | 年净增长面积 |
---|---|---|---|---|---|---|---|---|
耕地 | 36093.75 | 2865.50 | 22104.25 | 531.50 | 1915.00 | 1533.75 | 65043.75 | 39.25 |
林地 | 2731.00 | 22246.50 | 11534.25 | 114.75 | 133.75 | 804.25 | 37564.50 | 61.45 |
草地 | 22102.75 | 11949.50 | 92764.75 | 642.00 | 738.75 | 14749.50 | 142947.25 | -20.03 |
水域 | 580.25 | 86.75 | 629.25 | 1205.75 | 59.75 | 832.00 | 3393.75 | -5.05 |
建设用地 | 1705.75 | 108.75 | 703.50 | 54.50 | 741.00 | 113.50 | 3427.00 | 32.80 |
未利用地 | 2222.75 | 922.00 | 15011.00 | 794.75 | 166.75 | 152572.25 | 171689.50 | -108.43 |
2005年总计 | 65436.25 | 38179.00 | 142747.00 | 3343.25 | 3755.00 | 170605.25 | 424065.75 | 0.00 |
Tab. 2
Land use transfer matrix in Gansu Province from 2005 to 2020 /km2"
土地利用类型 | 耕地 | 林地 | 草地 | 水域 | 建设用地 | 未利用地 | 2005年总计 | 年净增长面积 |
---|---|---|---|---|---|---|---|---|
耕地 | 33352.25 | 3235.00 | 23833.25 | 604.00 | 2552.75 | 1864.75 | 65436.25 | -96.85 |
林地 | 3025.25 | 20947.25 | 12967.75 | 142.00 | 220.50 | 922.75 | 38179.00 | 12.95 |
草地 | 22717.00 | 12926.50 | 88461.75 | 754.25 | 1330.50 | 16541.75 | 142747.00 | 30.67 |
水域 | 564.50 | 98.75 | 707.75 | 1092.75 | 81.75 | 800.50 | 3343.25 | 29.60 |
建设用地 | 1788.50 | 135.00 | 863.00 | 79.00 | 745.50 | 144.25 | 3755.00 | 119.10 |
未利用地 | 2536.00 | 1030.75 | 16373.50 | 1115.25 | 610.50 | 148939.25 | 170605.25 | -92.80 |
2020年总计 | 63983.50 | 38373.25 | 143207.00 | 3787.25 | 5541.50 | 169213.25 | 424065.75 | 0.00 |
Tab. 3
Variables and indicators of the Gansu Geographical Detector in 1995, 2005, 2015, and 2020"
驱动因子 | 分级 | 1995年 | 2005年 | 2015年 | 2020年 | |||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
q值 | P值 | q值 | P值 | q值 | P值 | q值 | P值 | |||||
人口(X1) | 6 | 0.45 | 0 | 0.16 | 0 | 0.41 | 0 | 0.39 | 0 | |||
GDP(X2) | 6 | 0.29 | 0 | 0.14 | 0 | 0.38 | 0 | 0.38 | 0 | |||
土地开发强度(X3) | 6 | 0.42 | 0 | 0.17 | 0 | 0.40 | 0 | 0.07 | 0 | |||
降水(X4) | 6 | 0.37 | 0 | 0.10 | 0 | 0.26 | 0 | 0.36 | 0 | |||
温度(X5) | 6 | 0.14 | 0 | 0.05 | 0 | 0.12 | 0 | 0.13 | 0 | |||
坡度(X6) | 6 | 0.01 | 0 | 0.01 | 0 | 0.01 | 0 | 0.01 | 0 |
Tab. 4
Interactions of various factors in Gansu Province in 1995, 2005, 2015, and 2020"
人口(X1) | GDP(X2) | 土地开发强度(X3) | 降水(X4) | 温度(X5) | 坡度(X6) | ||
---|---|---|---|---|---|---|---|
1995年 | 人口(X1) | 0.45 | |||||
GDP(X2) | 0.51 | 0.29 | |||||
土地开发强度(X3) | 0.61 | 0.53 | 0.42 | ||||
降水(X4) | 0.52 | 0.46 | 0.58 | 0.37 | |||
温度(X5) | 0.50 | 0.41 | 0.48 | 0.54 | 0.14 | ||
坡度(X6) | 0.46 | 0.30 | 0.43 | 0.39 | 0.16 | 0.01 | |
2005年 | 人口(X1) | 0.16 | |||||
GDP(X2) | 0.21 | 0.14 | |||||
土地开发强度(X3) | 0.24 | 0.24 | 0.17 | ||||
降水(X4) | 0.19 | 0.18 | 0.22 | 0.10 | |||
温度(X5) | 0.19 | 0.17 | 0.19 | 0.19 | 0.05 | ||
坡度(X6) | 0.17 | 0.15 | 0.18 | 0.12 | 0.06 | 0.01 | |
2015年 | 人口(X1) | 0.40 | |||||
GDP(X2) | 0.49 | 0.38 | |||||
土地开发强度(X3) | 0.57 | 0.58 | 0.40 | ||||
降水(X4) | 0.47 | 0.48 | 0.51 | 0.26 | |||
温度(X5) | 0.47 | 0.46 | 0.45 | 0.52 | 0.12 | ||
坡度(X6) | 0.41 | 0.39 | 0.41 | 0.28 | 0.14 | 0.01 | |
2020年 | 人口(X1) | 0.39 | |||||
GDP(X2) | 0.48 | 0.38 | |||||
土地开发强度(X3) | 0.41 | 0.41 | 0.07 | ||||
降水(X4) | 0.47 | 0.46 | 0.38 | 0.36 | |||
温度(X5) | 0.45 | 0.45 | 0.22 | 0.52 | 0.13 | ||
坡度(X6) | 0.39 | 0.39 | 0.08 | 0.37 | 0.15 | 0.01 |
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