Journal of Geographical Sciences, Volume. 30, Issue 10, 1571(2020)
Impact of cultivated land fragmentation on spatial heterogeneity of agricultural agglomeration in China
Figures & Tables(9)
Fig. 2. Spatial differentiation of cultivated land fragmentation in China
Fig. 3. The difference of cultivated land fragmentation in various agricultural regions of China
Fig. 4. Spatial differentiation characteristics of agricultural specialization in China
Fig. 5. Distribution of regression coefficients of the impact of cultivated land fragmentation on planting specialization in China
Fig. 6. Spatial distribution of regression coefficients of the impact of cultivated land landscape characteristics on planting specialization in China
Table 1.
Classification of planting industry in China
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Classification of planting industry in China
Division (1) Category (3) Group (10) Type (13) Planting industry Grain crops, economic crops, vegetables and melon Cereal, soybeans, tubers, oil-bearing crops, cotton, sugar crops, tobacco, tea, vegetables, melon and fruit crops Rice, wheat, corn, sonja, potato, peanuts, rapeseeds, cotton, sugarcane, tea, flue-cured tobacco, vegetables, orchards
Table 2.
Estimation and diagnosis results of ordinary least square model
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Estimation and diagnosis results of ordinary least square model
Dependent variable CLF Landscape characteristics of cultivated land APS ED AI Regression coefficient t Regression coefficient t Regression coefficient t Regression coefficient t SHHI -0.208*** -3.702 0.104* 1.667 -0.077 -1.37 -0.168*** -3.123 SHHI of grain crops-0.382*** -6.078 0.057 0.793 -0.199*** -3.056 0.065 1.054 Cereal -0.259*** -4.070 0.033 -0.463 -0.207*** -3.164 0.057 -0.114 Soybeans -0.120*** -3.838 0.057 1.597 -0.039*** -3.151 0.030*** 2.649 Tubers -0.003 -0.275 0.033** 2.346 0.026 1.095 0.034 1.095 SHHI of economic crops-0.044 -1.429 0.017** 0.497 -0.025 -0.79 -0.06** -1.995 Oil-bearing crops -0.013 0.873 0.004 0.251 -0.010 -0.623 -0.023 -1.612 Cotton -0.050 -1.876 0.019 0.636 -0.025 -0.93 -0.044* -1.692 Sugar crops 0.009 1.036 -0.003 -0.300 0.006 0.7 0.009 1.037 Tobacco 0.001 0.840 -0.002 -1.613 -0.001 -0.957 0.000 0.372 Tea 0.009 2.646 -0.001 -0.189 0.005 1.451 -0.002 -0.646 SHHI of vegetables and melon0.218*** 7.120 0.030 0.879 0.147*** 4.778 -0.174*** -5.983 Vegetables 0.166*** 7.425 0.022 0.882 0.115*** 5.099 -0.111*** -5.143 Melon and fruit crops 0.052* 2.799 0.008 0.371 0.031* 1.653 -0.063** -3.477
Table 3.
Regression results of geographically weighted regression
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Regression results of geographically weighted regression
Dependent variable Cultivated land fragmentation Landscape characteristics of cultivated land Bandwidth Sigma AICc R2 Bandwidth Sigma AICc R2 SHHI 5.223 0.09 -624.568 0.426 6.598 0.09 -639.02 0.473 SHHI of grain crops5.223 0.10 -554.977 0.470 6.598 0.10 -551.917 0.486 Cereals 5.223 0.10 -539.595 0.424 6.598 0.10 -525.532 0.423 Soybeans 5.223 0.05 -1004.853 0.416 6.598 0.05 -970.156 0.378 SHHI of vegetables and melon5.223 0.05 -993.151 0.432 6.598 0.05 -1009.978 0.482 Vegetables 5.223 0.04 -1163.867 0.375 6.598 0.04 -1195.699 0.455
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Weiyi XU, Xiaobin JIN, Jing LIU, Yinkang ZHOU. Impact of cultivated land fragmentation on spatial heterogeneity of agricultural agglomeration in China[J]. Journal of Geographical Sciences, 2020, 30(10): 1571
Paper Information
Category: Research Articles
Received: Jun. 23, 2020
Accepted: Aug. 20, 2020
Published Online: Apr. 21, 2021
The Author Email: JIN Xiaobin (jinxb@nju.edu.cn)
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