Subjects: Other Disciplines >> Synthetic discipline submitted time 2023-03-28 Cooperative journals: 《中国科学院院刊》
Abstract： Poverty is a major challenge faced by human development, especially the global problem that has plagued developing countries, including China, for a long time. As rural absolute poverty population and poverty-stricken counties will achieve poverty alleviation in 2020, China’s anti-poverty focus in the new era will begin to shift from targeted poverty alleviation in absolute poverty areas to high-quality development through comprehensive measures in relative poverty areas. Based on an initially constructed conceptual model of high-quality development in relative poverty areas, this article analyzed the internal and external constraints from the sustainability of individual and regional scales, and further proposed comprehensive policies to ensure that poverty would not be returned after 2020 and high-quality development would be achieved. It is necessary to guide the rational flow of population and development factors, reshape the appearance of urban and rural interaction and equivalent development, further promote the value of resources and ecological advantages, and focus on key poverty areas such as the Qinghai-Tibet Plateau. Taking the “14th Five-Year Plan” period as the transition period, formulate flexible and accurate identification standards for relative poverty population and areas, focus on the integration of various poverty alleviation policy tools and resources, and form a centralized, distributed, and mobile highquality infrastructure and public service guarantee system.
Subjects: Geosciences >> Geography submitted time 2022-10-21 Cooperative journals: 《干旱区地理》
Abstract：核心-边缘结构的研究将加深对城市网络演化规律的理解。基于证券服务联系视角，解析 了20052019年中国城市网络的核心-边缘结构演化特征及其影响因素。结果表明：（1）中国城 市网络核心区块的规模稳步扩张，同时城市核心度的分布趋于分散，推动着城市网络向多中心格 局发展；城市网络的核心区块主要由城市群的核心城市组成，城市网络连通度的分布收敛于Zipf法 则，预示着中国城市网络将呈现持续的等级结构特征。（2）政治权力、市场潜力、知识资本、航空联 系和经济开放决定了证券企业获取有价值信息流的能力，进而构成了中国城市网络核心-边缘结 构生长发育的基础；城市的网络地位在很大程度上源于场所空间中的影响力，这意味着城市网 络的发展可能会加剧中国城市经济的发展差距。
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