【作者】 李效顺； 曲福田； 李明艳；

【Author】 LI Xiaoshun,QU Futian,LI Mingyan (China Center for Land Policy Research,Nanjing Agricultural University,Nanjing,Jiangsu 210095)

【机构】 南京农业大学中国土地问题研究中心；

【摘要】 改革开放以来,我国经济建设的成就举世瞩目,城市空间的承载贡献也令世人叹为观止。然而,城市拓展面临无法回避的矛盾:"是保障城市空间扩展所需建设用地、支撑经济短期飞速增长,还是坚守耕地资源红线、维护生态安全、促进经济长期持续发展"。本文以化解上述矛盾为研究主线,首先提出两个重要的理论命题:一是现行制度安排和政策激励是城市无序扩张的主要原因;二是理论上应该在空间上界定城市扩展的理想、适度和极限三个边界。之后,在测算耕地资源价值的基础上,以南京市区为例对理论命题进行了实证分析。结果表明:其一,南京市耕地资源综合价值为1.55×107元/hm2,经济价值占综合价值的8.74%,其余91.26%的价值由于现行制度安排、政策扭曲及土地市场不完善等原因难以显化,验证了理论命题;其二,由于江北城市地价相对较低,很难划定理想和适度两个边界,而江南地区城市地价相对较高,划定的三个边界均向江宁、栖霞和雨花台突起;其三,现阶段南京市江南地区城市扩展理性规模不应超过5.82×104 hm2,与城市规划划定的控制范围规模5.81×104 hm2基本一致,而理性的空间扩展范围界定在适度边界上较为科学和合理。最后,本研究建议南京市现阶段不应该将大量资金投入到跨江(江北)发展上,发展重点应该集中在江南南部的江宁区、西南部的雨花台区和东北部的栖霞区。更多还原

【Abstract】 Since the reform and opening-up,China’s economy has achieved remarkable development and so does the rapid urbanization.However,there is an unevadable contradiction between urban spatial expansion and the protection on cultivated land and the environment.To resolve the contradiction,we propose two theoretical propositions.The first is that the existing institutional arrangements and policies has encouraged irrational urban sprawl.The second is that in theory,the optimal boundary,moderate boundary and control boundary should be defined for metropolises in space.Based on the calculation of value of agricultural land resources in Nanjing,this paper examine the above two propositions.The results show that(1) the integrated value of agricultural land (arable land) resources in Nanjing is 1.55×10~7 yuan/hm~2,the economic value accounts for only 8.74%of the integrated value,while 91.26%of the integrated value has not been expressed due to the existing institutional arrangements,policy distortions,and imperfect land market.This fact has proved our theoretical analysis and judgments;(2) it is difficult to define the optimal and moderate boundaries due to the relatively low price of North Nanjing.In South Nanjing the land price are expensive and the optimal,moderate and control borders are convex to Jiangning,Qixia,and Yuhuatai;(3) the scale of south Nanjing should be limited within 5.82×10~4hm~2, which is basically the same as the designated size of 5.81×10~4hm~2 in the urban planning.We suggest that the rational scope of urban expansion should be controlled within the moderate boundary.Therefore,we suggest that at this stage the investment should focus on South Nanjing other than North Nanjing.更多还原