Journal of Geographical Sciences ›› 2018, Vol. 28 ›› Issue (11): 1685-1699.doi: 10.1007/s11442-018-1537-2
• Special Issue: Land system dynamics: Pattern and process • Previous Articles Next Articles
Huimin YAN1,2(), Fang LIU1, Zhongen NIU1,2, Fengxue GU3, Yanzhao YANG1,2
Received:
2017-02-20
Accepted:
2017-09-15
Online:
2018-11-20
Published:
2018-12-21
About author:
Author: Yan Huimin (1974-), PhD, specialized in land use change. E-mail:
Supported by:
Huimin YAN, Fang LIU, Zhongen NIU, Fengxue GU, Yanzhao YANG. Changes of multiple cropping in Huang-Huai-Hai agricultural region, China[J].Journal of Geographical Sciences, 2018, 28(11): 1685-1699.
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Table 1
Physical conditions of sub-regions in Huang-Huai-Hai agricultural region"
Sub-region | Area of cropland (×104 ha) | Proportion of cropland (%) | Mean annual precipitation (mm) | ≥10℃ accumulated temperature (℃) | Proportion of plain area (%) | Proportion of hilly area (%) |
---|---|---|---|---|---|---|
Piedmonts of Taihang and Yanshan Mountains | 535.61 | 15.13 | 600-900 | 3500-4900 | 66.69 | 33.31 |
Heilonggang lower-lying plain | 462.36 | 13.06 | 600-750 | 3400-4500 | 99.96 | 0.04 |
Low plain in northwest Shandong and north Henan | 387.20 | 10.94 | 700-900 | 2600-4800 | 99.68 | 0.32 |
Shandong hilly region | 749.54 | 21.17 | 800-850 | 3500-4200 | 45.66 | 54.34 |
Nanyang basin of the Huang-Huai Plain | 1405.70 | 39.70 | 900-1100 | 3800-5400 | 92.82 | 7.18 |
Table 2
MCI changes and the corresponding croplands proportions in sub-regions in Huang-Huai-Hai agricultural region during 2000-2012"
Sub-region | Average MCI (%) | Proportion of cropland (%) | |||||
---|---|---|---|---|---|---|---|
2000 | 2012 | Change | Increased MCI | Decreased MCI | Stable MCI | ||
Piedmonts of Taihang and Yanshan Mountains | 142.07 | 137.27 | -4.8 | 15.95 | 24.54 | 59.52 | |
Heilonggang lower-lying plain | 122.29 | 121.37 | -0.92 | 16.92 | 21.71 | 61.37 | |
Low plain in northwest Shandong and north Henan | 165.47 | 173.57 | 8.1 | 29.41 | 12.42 | 58.18 | |
Shandong hilly region | 126.52 | 126.22 | -0.3 | 18.43 | 19.82 | 61.74 | |
Nanyang basin of the Huang-Huai Plain | 177.97 | 188.89 | 10.92 | 33.57 | 9.91 | 56.52 |
Table 3
Proportions of cropland with increased and decreased MCI in each sub-region in Huang-Huai-Hai agricultural region during 2000-2012 (%)"
Sub-region | Proportion of increased MCI | Proportion of decreased MCI | ||||
---|---|---|---|---|---|---|
Plain area | Hilly area | Plain area | Hilly area | |||
Piedmonts of Taihang and Yanshan Mountains | 9.96 | 79.16 | 20.84 | 23.63 | 78.32 | 21.68 |
Heilonggang lower-lying plain | 9.13 | 99.99 | 0.01 | 18.08 | 99.97 | 0.03 |
Low plain in northwest Shandong and north Henan | 13.00 | 99.65 | 0.35 | 8.47 | 99.85 | 0.15 |
Shandong hilly region | 15.71 | 66.78 | 33.22 | 26.06 | 63.52 | 36.48 |
Nanyang basin of the Huang-Huai Plain | 52.19 | 91.22 | 8.78 | 23.76 | 90.08 | 9.92 |
Table 4
MCI changes in plain area and hilly area of sub-regions in Huang-Huai-Hai agricultural region during 2000-2012 (%)"
Sub-region | Plain area | Hilly area | ||||
---|---|---|---|---|---|---|
2000 | 2012 | Change | 2000 | 2012 | Change | |
Piedmonts of Taihang and Yanshan Mountains | 157.12 | 151.75 | -5.37 | 116.15 | 112.50 | -3.65 |
Heilonggang lower-lying plain | 122.59 | 121.79 | -0.80 | 100.00 | 95.44 | -4.56 |
Low plain in northwest Shandong and north Henan | 166.15 | 174.31 | 8.16 | 178.41 | 190.72 | 12.31 |
Shandong hilly region | 145.61 | 145.18 | -0.43 | 111.76 | 111.77 | 0.02 |
Nanyang basin of the Huang-Huai Plain | 180.47 | 191.13 | 10.66 | 151.33 | 165.86 | 14.53 |
Table 5
Proportions of cropland with increased and decreased MCI of plain area, piedmont plain area and hilly area in Huang-Huai-Hai agricultural region during 2000-2012 (%)"
Buffer zones | Plain area | Piedmont plain area | Hilly area | ||||||
---|---|---|---|---|---|---|---|---|---|
Decreased MCI | Stable MCI | Increased MCI | Decreased MCI | Stable MCI | Increased MCI | Decreased MCI | Stable MCI | Increased MCI | |
10 km | 15.39 | 57.47 | 27.15 | 20.23 | 52.56 | 27.21 | 14.74 | 68.80 | 16.46 |
20 km | 14.85 | 58.72 | 26.43 | 19.46 | 52.26 | 28.27 | 14.74 | 68.80 | 16.46 |
30 km | 14.56 | 59.53 | 25.91 | 18.79 | 52.77 | 28.44 | 14.74 | 68.80 | 16.46 |
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