ZHANG Xingshan1(), YANG Heng1, MA Wenqiu1, YANG Minli1, WANG Haiyi1, YOU Yong1, HUI Yunting1, GONG Zeqi2, WANG Tianyi1,3()
Received:
2023-06-09
Online:
2023-12-20
Supported by:
CLC Number:
ZHANG Xingshan, YANG Heng, MA Wenqiu, YANG Minli, WANG Haiyi, YOU Yong, HUI Yunting, GONG Zeqi, WANG Tianyi. Ecological Risk Assessment of Cultivated Land Based on Landscape Pattern: A Case Study of Tongnan District, Chongqing[J]. Smart Agriculture, doi: 10.12133/j.smartag.SA202306008.
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URL: http://www.smartag.net.cn/EN/10.12133/j.smartag.SA202306008
Table 2
Results of cultivated land landscape pattern index calculation for each evaluation unit in Tongnan District of Chongqing in 2010 and 2020
评价单元 | 年份 | PD | D | FD | U | ED | MSI | MPS | V | ERI |
---|---|---|---|---|---|---|---|---|---|---|
柏梓镇 | 2010 | 0.15 | 1.61 | 0.19 | 0.59 | 1.58 | 1.39 | 6.89 | 3.19 | 1.90 |
2020 | 0.11 | 1.57 | 0.17 | 0.56 | 1.40 | 1.42 | 8.76 | 3.68 | 2.07 | |
宝龙镇 | 2010 | 0.10 | 1.59 | 0.15 | 0.55 | 1.85 | 1.61 | 10.52 | 4.42 | 2.45 |
2020 | 0.20 | 1.57 | 0.22 | 0.62 | 1.78 | 1.35 | 4.95 | 2.72 | 1.68 | |
别口镇 | 2010 | 0.67 | 1.86 | 0.41 | 0.98 | 3.13 | 1.28 | 1.48 | 2.18 | 2.14 |
2020 | 0.48 | 1.82 | 0.35 | 0.86 | 2.89 | 1.31 | 2.09 | 2.26 | 1.93 | |
崇龛镇 | 2010 | 0.13 | 1.66 | 0.18 | 0.60 | 1.90 | 1.52 | 7.63 | 3.57 | 2.14 |
2020 | 0.12 | 1.58 | 0.18 | 0.57 | 1.57 | 1.45 | 8.10 | 3.58 | 2.05 | |
古溪镇 | 2010 | 0.11 | 1.64 | 0.16 | 0.58 | 1.71 | 1.42 | 9.38 | 3.99 | 2.31 |
2020 | 0.13 | 1.61 | 0.18 | 0.59 | 1.57 | 1.32 | 7.47 | 3.36 | 1.97 | |
花岩镇 | 2010 | 0.20 | 1.51 | 0.22 | 0.59 | 1.80 | 1.36 | 5.10 | 3.49 | 2.07 |
2020 | 0.04 | 1.42 | 0.10 | 0.46 | 1.54 | 4.60 | 27.25 | 9.47 | 4.40 | |
龙形镇 | 2010 | 0.15 | 1.65 | 0.19 | 0.61 | 1.87 | 1.40 | 6.59 | 3.23 | 1.97 |
2020 | 0.09 | 1.57 | 0.15 | 0.55 | 1.53 | 1.45 | 10.54 | 4.29 | 2.35 | |
米心镇 | 2010 | 0.17 | 1.64 | 0.21 | 0.62 | 1.95 | 1.43 | 5.76 | 2.99 | 1.85 |
2020 | 0.33 | 1.71 | 0.29 | 0.73 | 2.23 | 1.35 | 3.04 | 2.29 | 1.68 | |
群力镇 | 2010 | 0.21 | 1.51 | 0.23 | 0.60 | 1.55 | 1.31 | 4.82 | 2.52 | 1.52 |
2020 | 0.14 | 1.49 | 0.19 | 0.55 | 1.46 | 1.34 | 7.29 | 3.23 | 1.78 | |
上和镇 | 2010 | 0.33 | 1.84 | 0.29 | 0.78 | 2.90 | 1.40 | 3.00 | 2.57 | 2.00 |
2020 | 0.24 | 1.78 | 0.24 | 0.70 | 2.52 | 1.39 | 4.22 | 2.78 | 1.95 | |
寿桥镇 | 2010 | 0.24 | 1.61 | 0.25 | 0.65 | 2.21 | 1.42 | 4.16 | 2.79 | 1.82 |
2020 | 0.18 | 1.59 | 0.21 | 0.61 | 2.13 | 2.12 | 5.51 | 3.01 | 1.84 | |
双江镇 | 2010 | 0.19 | 1.67 | 0.22 | 0.64 | 1.83 | 1.30 | 5.22 | 2.75 | 1.76 |
2020 | 0.14 | 1.59 | 0.19 | 0.58 | 1.48 | 1.29 | 7.19 | 3.21 | 1.87 | |
太安镇 | 2010 | 0.14 | 1.72 | 0.18 | 0.62 | 2.26 | 1.54 | 7.33 | 3.61 | 2.24 |
2020 | 0.32 | 1.68 | 0.28 | 0.72 | 2.06 | 1.34 | 3.09 | 2.25 | 1.63 | |
塘坝镇 | 2010 | 0.43 | 1.71 | 0.33 | 0.79 | 2.05 | 1.24 | 2.32 | 1.94 | 1.54 |
2020 | 0.53 | 1.69 | 0.37 | 0.85 | 1.97 | 1.23 | 1.88 | 1.77 | 1.50 | |
田家镇 | 2010 | 0.50 | 1.68 | 0.35 | 0.83 | 2.09 | 1.25 | 2.01 | 1.87 | 1.54 |
2020 | 0.29 | 1.61 | 0.27 | 0.68 | 1.76 | 1.28 | 3.51 | 2.18 | 1.48 | |
卧佛镇 | 2010 | 1.04 | 1.99 | 0.51 | 1.22 | 3.94 | 1.24 | 0.96 | 2.37 | 2.90 |
2020 | 1.01 | 1.97 | 0.50 | 1.20 | 3.73 | 1.26 | 0.99 | 2.28 | 2.73 | |
五桂镇 | 2010 | 6.43 | 2.58 | 1.27 | 4.24 | 9.98 | 1.26 | 0.16 | 4.84 | 20.54 |
2020 | 5.98 | 2.48 | 1.22 | 3.98 | 8.89 | 1.25 | 0.17 | 4.35 | 17.31 | |
小渡镇 | 2010 | 0.28 | 1.69 | 0.27 | 0.70 | 2.01 | 1.28 | 3.56 | 2.33 | 1.63 |
2020 | 0.27 | 1.76 | 0.26 | 0.71 | 2.32 | 1.32 | 3.75 | 2.51 | 1.79 | |
新胜镇 | 2010 | 2.04 | 2.18 | 0.71 | 1.82 | 5.64 | 1.25 | 0.49 | 2.99 | 5.44 |
2020 | 2.39 | 2.20 | 0.77 | 2.01 | 5.85 | 1.25 | 0.42 | 3.06 | 6.16 | |
玉溪镇 | 2010 | 1.52 | 1.75 | 0.62 | 1.41 | 2.47 | 1.22 | 0.66 | 1.61 | 2.26 |
2020 | 1.28 | 1.76 | 0.57 | 1.28 | 2.48 | 1.22 | 0.78 | 1.65 | 2.12 | |
平均值 | 2010 | 0.75 | 1.76 | 0.35 | 0.97 | 2.74 | 1.36 | 4.40 | 2.96 | 3.10 |
2020 | 0.71 | 1.72 | 0.34 | 0.94 | 2.56 | 1.53 | 5.55 | 3.20 | 3.01 |
Table 3
Ecological risk area, area proportion, rate of change in Tongnan district of Chongqing
年份 | 低风险 | 较低风险 | 中风险 | 较高风险 | 高风险 | |||||
---|---|---|---|---|---|---|---|---|---|---|
面积/km2 | 比重/% | 面积/km2 | 比重/% | 面积/km2 | 比重/% | 面积/km2 | 比重/% | 面积/km2 | 比重/% | |
2010 | 310.68 | 22.32 | 482.16 | 34.62 | 217.77 | 15.64 | 214.66 | 15.42 | 167.19 | 12.01 |
2020 | 330.79 | 23.75 | 511.90 | 36.76 | 271.08 | 19.47 | 84.36 | 6.06 | 193.43 | 13.96 |
风险面积变化大小/km2 | 20.11 | 29.74 | 53.31 | -130.30 | 26.24 | |||||
风险面积变化率/% | 6.44 | 6.17 | 24.48 | -60.70 | 16.30 |
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