城市职能对城市建设用地指标的影响——基于人均城市建设用地面积和城市工业用地面积比重的视角

IMPACT OF URBAN FUNCTION ON THE INDICES OF URBAN CONSTRUCTION LAND:FROM THE PERSPECTIVE OF URBAN CONSTRUCTION LAND AREA PER CAPITA AND PROPORTION OF INDUSTRIAL LAND

现行规划建设用地标准主要沿用"单一控制"思路,除人口规模和气候区外,尚未考虑影响城市用地的其他因素。为此,本研究从职能视角出发,以全国268个地级及以上城市为对象,揭示了36个产业部门的职能指数与城市建设用地面积人均值、工业用地面积人均值和比重值的对应关系。回归分析表明,城市职能是决定人均城市建设用地面积、人均城市工业用地面积、工业用地占城市建设用地面积比重的关键因素,其相对影响已超过既有标准中的所涉变量,但各类二三产部门对土地要素投入的需求强度不尽相同。在预测用地规模及修订现行规划建设用地标准时,建议根据重点产业部门的职能标准化指数,对规划期内的城市建设用地指标给予弹性增减,以提高规划成果的科学性和可实施性。

The current planning standards of development land have mainly followed the means of“single control”.However,except population scale and climate zone,other factors affecting urban land use have not been considered until now.Therefore,taking 268 cities at the prefecture level or above as research object,this study aims to reveal the relationship between the functional index of 36 industrial sectors and urban development land area per capita,industrial land area per capita and the proportion of industrial land area.Via regressive analysis,this research demonstrates that urban function is the critical factor to determine urban construction land area per capita,urban industrial land area per capita and the proportion of industrial land area in urban construction land.Furthermore,the relative influence of urban function has exceeded the variables involved in the existing standard.Different kinds of secondary and tertiary industry departments have diverse demand intensity degrees for land input.Therefore,to predict the amount of land use and modify the existing planning standard of urban construction land,the urban land use index of specific city should be allowed to flexibly increase or decrease according to the functional standardized index of key industry departments,so as to improve the scientific level and enforceability of master planning.