Evaluation of Industrial Land''s Intensive Use and Analysis of Potential Mining with Bayes Discrimination: A Case Study of Typical Enterprises in Hubei Province
基于Bayes判别的工业用地集约利用评价与潜力挖掘分析——以湖北省典型企业为例

Industrial land is a major kind of construction land as well as an important component of urban land, and its intensive degree directly influences the use of urban land. This paper takes Hubei Province as an example, selects the enterprises with better production status and comparatively higher profits or tax within the same industry to investigate. Based on 512 questionnaires and with food manufacturing industry as an example, the paper has constructed an intensive land use evaluation system for industrial land, which is composed of 4 objective layers (land use construction, land use intensity, land investment and land productivity) and 9 element layers. With indicators'status value and the actual economic development of Hubei, the authors have used interval estimation method to determine the ideal value of each indicator and constructed Bayes discrimination function to discriminate the land use intensity of 52 typical food manufacturing companies. Besides, after evaluating the potentiality of intensive land use for enterprises which have used the land at a moderate or low level with geometric mean algorithm, we got the results as follows: among 52 enterprises, 10 are evaluated to use land excessively, which account for 19.23% of total samples; 7 are evaluated to use land intensively, which account for 13.46% of total samples; 3 are evaluated to use land moderately, which account for 5.77% of total samples; 32 are evaluated to use land at a low level, which account for 61.54% of total samples. In addition, there are approximately 100.48 hm2 potential lands for the 52 food manufacturing enterprises, accounting for 55.83% of current land, which shows great potentiality for intensive use. In order to improve the intensive degree of land, the following suggestions were recommended in this paper: 1)For enterprises that overused the land, investment of technological innovation should be increased and reliance on land should be reduced; 2)For enterprises that used the land at a moderate or low level, supervision on land use should be strengthened and land with insufficient capital investment or with no use should be transferred or redistributed; 3)Strictly obey relevant rules on land use approval and comply with land use standards of different industries to control land supply, improve market mechanism of industrial land supply and bring into play the price's fundamental effect on land resources distributions.