摘要
水土资源承载力是资源环境承载力的重要组成部分,科学评价水土资源承载力对合理引导人口流动、缓解资源环境压力和促进区域高质量发展具有重要意义。以长江经济带11省市为例,分别运用土地资源承载力和水资源承载力评价模型对2008~2020年长江经济带11省市的土地资源承载力和水资源承载力进行了评价分级和时空演化分析,在此基础上又运用二维矩阵赋值法对长江经济带11省市的水土资源承载力进行了综合评价分级和时空演化分析。结果表明:①长江经济带11省市土地资源承载力级别总体上呈现“东西弱,中部强”的空间分布格局,并且表现出“中部增强,东西部减弱”的时空演变趋势,土地资源承载力总体是向承载力级别高的方向发展,土地资源所能承载的人口数变多,人地关系更趋和谐;②长江经济带11省市水资源承载力总体上呈“东强西弱”的空间分布格局,在水资源承载力总体格局保持相对稳定的情况下,东部地区的江苏省和浙江省发生了水资源承载力级别的变化,显示出“东西弱,中部强”的时空演变趋势;③长江经济带11省市水土资源承载力总体呈现“东强西弱”的空间分布特征,水土资源承载力为“较强”和“弱”的两个级别均有向东移动的趋势,承载力为“较强”和“弱”级别的省份数量有所增加,承载力为“中等”和“较弱”级别的省份数量有所减少。
The bearing capacity of water and land resources is an important part of the carrying capacity of resources and environment.Scientific evaluation of the carrying capacity of water and land resources is of great significance for rationally guiding population flow,alleviating resource and environmental pressures and promoting regional high-quality development.Taking the 11 provinces and cities of the Yangtze River Economic Belt as an example,this paper uses the evaluation model of land resource carrying capacity and water resources carrying capacity to evaluate the land resource carrying capacity and water resources carrying capacity of 11 provinces and cities in Yangtze River Economic Belt in 2008 and 2019,and make the analysis of time and space change.The two-dimensional matrix assignment method is used to analyze the water and land resources carrying capacity of the 11 provinces and cities in the Yangtze River Economic Bel in 2008 and 2020,and make the analysis of time and space change.The results show that:①The level of land resources carrying capacity in 11 provinces and cities of the Yangtze River Economic Belt generally presents the spatial distribution pattern of"weak in the east and west and strong in the middle",and shows the spatial and temporal evolution trend of"strengthening in the middle and weakening in the east and west".The overall development of land resources carrying capacity is in the direction of high carrying capacity.The number of people that land resources can carry becomes more,and the relationship between people and land becomes more harmonious.②The water resources carrying capacity of 11 provinces and cities in the Yangtze River Economic Belt generally presents a spatial distribution pattern of"strong in the east and weak in the west".Under the condition that the overall pattern of water resources carrying capacity remains relatively stable,Jiangsu Province and Zhejiang Province in the eastern region have changed the level of water resources carrying capacity,showing the temporal an
作者
翁翎燕
张超
丁洁
耿海
Weng Lingyan;Zhang Chao;Ding Jie;Geng Hai(Nanjing Institute of Tourism&Hospitality,Nanjing,Jiangsu 211100,China;School of Public Administration,Nanjing Agricultural University,Nanjing,Jiangsu 210095,China)
出处
《绿色科技》
2023年第14期20-27,共8页
Journal of Green Science and Technology
基金
国家自然科学基金项目(编号:41801201)
江苏省高校自然科学研究项目(编号:17KJB420001)
江苏高校哲学社会科学研究一般项目(编号:2021SJA0785、2022SJYB0854、2022SJYB0856)
南京旅游职业学院科研创新团队(编号:2021KYTD03)。
关键词
水土资源承载力
二维矩阵赋值法
时空演变
长江经济带
the carrying capacity of water and land resources
two-dimensional matrix assignment method
spatial and temporal variation
the Yangtze River Economic Belt
