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中国农学通报 ›› 2017, Vol. 33 ›› Issue (25): 81-87.doi: 10.11924/j.issn.1000-6850.casb17040090

所属专题: 资源与环境 农业气象 农业生态 耕地保护

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

基于生态文明的半干旱区土地资源综合承载力评价研究

双文元   

  1. 华侨大学政治与公共管理学院
  • 收稿日期:2017-04-13 修回日期:2017-06-14 接受日期:2017-06-23 出版日期:2017-09-15 发布日期:2017-09-15
  • 通讯作者: 双文元
  • 基金资助:
    福建省软科学“城镇化过程中的空间生产理论视域下泉州市农村居民点空间分异、转型与演变机理研究”(2016R0057)。

Evaluation of Comprehensive Carrying Capacity of Land Resources in Semi-arid Areas: Based on Eco-civilization

  • Received:2017-04-13 Revised:2017-06-14 Accepted:2017-06-23 Online:2017-09-15 Published:2017-09-15

摘要: 土地资源面积的有限性,位置固定性和区域差异性,造成了其供给稀缺性;而土地资源具有养育、支撑、资源和资产等功能,其需求旺盛;土地资源供给的稀缺性与社会需求的无限性之间存在矛盾。本文研究方法是运用经济学的总需求-总供给模型(AD-AS模型),立足生态文明角度,从供求方面对区域土地资源承载力进行探讨,以山西省大同市为案例区。研究结果表明:①由耕地需求量、建设用地需求量和生态用地需求量构成的土地资源综合承载力总需求,2011-2015年大同市土地综合承载力总需求分别为0.5309、0.5542、0.5770、0.5797和0.6030;其总体趋势增加;②由耕地支撑能力、建设用地支撑能力和生态支撑能力构成的土地综合承载力总供给,2011-2015年大同市土地综合承载力总供给分别为1.423、1.466、2.104、1.531和1.509;③2011-2015年大同市土地综合承载力处于超载,2013年超载最大,2015年超载最小,说明大同市的土地资源承载力超载现象在改善。运用此方法进行土地资源综合承载力,在土地资源承载力研究中更为科学和合理,使得人们更为关注生态文明,建立社会、经济、生态和谐的人地关系提供了新的依据。

关键词: 烤烟, 烤烟, 大马酮, 基因型, 生态条件:栽培措施, 调制措施

Abstract: The physical traits of land resources like finite in amount, immovability and regional differentiation make it scarce for given purposes. However its multi-function can support and nourish agriculture, as well as generate socio-economic values form the resource and capital perspectives. The contradiction between the limited supply of land resources and increasing pursuit for the maintenance and develop of societal need drives more and more researches into the the balance between utilization of land resources and limitation of natural resource carrying capacity. Based on the protection and maintenance of eco-civilization, this paper carried out a comprehensive evaluation of regional land carrying capacity using aggregate demand- aggregate supply (AD-AS) model from the perspective of economics, from the angle of ecological civilization, this paper discusses the carrying capacity of regional land resources from the aspect of supply and demand, taking Datong City as the case area. The results showed that:①The total demand of the comprehensive carrying capacity of regional land resources is composed of the demand for cultivated land, the demand for construction land and the demand for ecological land, From 2011 to 2015, the aggregate demand for land comprehensive capacity in Datong City was 0.5309、0.5542、0.5770、0.5797 and 0.6030 respectively, and the overall trend was increased; ②The total carrying capacity of land is composed of the supporting capacity of cultivated land, the support capacity of construction land and the ability of ecological support, From 2011 to 2015, the total supply capacity of land in Datong City was 1.423、1.466、2.104、1.531 and 1.509 respectively; ③From 2011 to 2015, the comprehensive carrying capacity of Datong City is overloaded, and the overload is the largest in 2013, and the overload is the smallest in 2015, which indicates that the overloading capacity of land resources in Datong is improving. By using the method of land comprehensive carrying capacity, in the study of the bearing capacity of land resources in a more scientific and reasonable, make people pay more attention to the ecological civilization, may be helpful in giving new and novel references for the establishment of balanced relationships between human and land resources.

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