Journal of Resources and Ecology, Volume. 11, Issue 6, 598(2020)
Temporal and Spatial Characteristics and Optimization of the Intensive Use of Cultivated Land in Maoming City
Figures & Tables(7)
Fig. 2. Spatial changes of cultivated land intensity in Maoming City in 2007, 2010, 2013 and 2017
Table 1.
Cultivated land spatial distribution of Maoming City in 2017(unit: ha)
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Cultivated land spatial distribution of Maoming City in 2017(unit: ha)
Major types Paddy field Irrigated land Dryland Maoming 200214 100 134955 34848 30411 Huazhou 50620 25.3 34225 6431 9946 Dianbai 52665 26.3 33068 8234 10823 Gaozhou 47582 23.7 34877 5634 7071 Xinyi 32416 16.2 21665 6134 7071 Maonan 16931 8.5 11120 3420 2391
Table 2.
Cultivated land intensive use index evaluation system
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Cultivated land intensive use index evaluation system
Target layer Criterion layer Index layer Weight Intensive use of cultivated land (A) Cultivated land use intensity (B1) Fertilizer input per unit area (C11) 0.7112 Labor input per unit area (C12) 0.0790 Mechanical input per unit area (C13) 0.2098 Cultivated land use degree (B2) Cropland multiple cropping index (C21) 0.1661 Farmland irrigation index (C22) 0.2565 Input of farmland plastic film (C23) 0.1247 Cultivated land use output benefit (B3) Per unit area yield (C31) 0.4527 Yield safety factor (C32) 0.1423 Average output value per worker (C33) 0.5737 Sustainable use of cultivated land (B4) Forest coverage (C41) 0.2840 Per capita arable land (C42) 0.3457 Non-agricultural index (C43) 0.6543
Table 3.
The average random consistency index RI
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The average random consistency index RI
Order 1 2 3 4 5 6 7 8 9 RI 0 0 0.58 0.9 1.12 1.24 1.32 1.41 1.45
Table 4.
Index of cultivated land intensive use of Maoming in 2004-2017
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Index of cultivated land intensive use of Maoming in 2004-2017
Year Intensity Degree Output effect Sustainable status Intensive use of cultivated land 2004 0.0614 0.1083 0.0214 0.2134 0.4045 2005 0.0991 0.2324 0.0234 0.3213 0.6762 2006 0.0221 0.2278 0.0354 0.3234 0.6087 2007 0.0321 0.0645 0.0137 0.1091 0.2194 2008 0.0423 0.0984 0.0534 0.2314 0.4255 2009 0.0712 0.1126 0.0837 0.2867 0.5542 2010 0.1118 0.1143 0.1143 0.3642 0.7046 2011 0.1377 0.1513 0.1421 0.4859 0.917 2012 0.1712 0.2542 0.1631 0.6643 1.2528 2013 0.1258 0.0872 0.1743 0.4231 0.8104 2014 0.1787 0.1452 0.2227 0.5121 1.0587 2015 0.2018 0.1423 0.2356 0.5345 1.1142 2016 0.256 0.1146 0.2539 0.6231 1.2476 2017 0.2622 0.1431 0.2741 0.6354 1.3148
Table 5.
Cultivated land intensive use degree of cities/districts in Maoming in 2007, 2010, 2013, and 2017
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Cultivated land intensive use degree of cities/districts in Maoming in 2007, 2010, 2013, and 2017
City/District 2007 2010 2013 2017 Huazhou 0.9245 1.0340 1.1669 1.3452 Gaozhou 0.9236 0.9727 1.2505 1.3698 Xinyi 0.8992 1.0668 1.1837 1.3326 Dianbai 0.8848 1.0805 1.1865 1.3029 Maonan 0.9593 1.1330 1.1987 1.3928
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Shiyin CHEN, Zhiyu MA. Temporal and Spatial Characteristics and Optimization of the Intensive Use of Cultivated Land in Maoming City[J]. Journal of Resources and Ecology, 2020, 11(6): 598
Paper Information
Received: May. 27, 2020
Accepted: Jul. 16, 2020
Published Online: Apr. 23, 2021
The Author Email: MA Zhiyu (mzy0305@163.com)
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