Your conditions: 杨林生
  • Progress and prospects on institutional system construction of ecological civilization in China

    Subjects: Statistics >> Social Statistics submitted time 2024-03-27 Cooperative journals: 《中国科学院院刊》

    Abstract: Since the 18th National Congress of the Communist Party of China, the construction of Ecological Civilization (EC) in China has undergone historic, transitional, and comprehensive changes from theory to practice. The construction of system is the core content and the basic guarantee for the success of EC construction. Based on the government documents of EC construction and related research literatures, this study analyzes the formation and evolution characteristics of China’s EC construction system, parses the development process of representative innovation policies, and then predicts the trend of the further deepening reform of EC system. The results show that the relevant policies of EC can be summarized into four categories: green development, environmental governance, ecological protection, and comprehensives. Among them, the number of policies for green development is the most. From the perspective of policy empowerment, the issuing organizations are mainly the central government or multi-ministerial joint effort, with a strong sense of comprehensiveness. Most of the EC policies have gone through the development process of “exploration-pilot test-promotion”. Different EC policies are integrated, and support each other, forming a sound EC system with Chinese characteristics. Therefore, the expected trend of the future deepening reform of China’s EC system includes the following four aspects: strengthening the guarantee of laws and regulations, strengthening the efficient coordination between systems, improving the green and low-carbon development policies, and strengthening the evaluation and research of EC system and Beautiful China.

  • Opportunities and challenges in monitoring cultivated land red line in big data era

    Subjects: Statistics >> Social Statistics submitted time 2024-03-27 Cooperative journals: 《中国科学院院刊》

    Abstract: The demographic reality of a large population and limited land resources in China necessitates the implementation of the world’s most stringent cultivated land protection system. Effective, timely, and accurate monitoring of the status of cultivated land protection red line is essential to ensuring cultivated land protection and food security. The development of cutting-edge technologies such as remote sensing big data, cloud computing, and artificial intelligence has provided new opportunities for cultivated land control and monitoring. This article systematically elaborates on the current research status and challenges in the field of cultivated land protection redline control and monitoring, including the establishment of the monitoring object system, the availability of remote sensing data, the accuracy, and timeliness of monitoring results, and other related issues. It introduces advanced technologies and prospects for big data technology in cultivated land redline monitoring and proposes innovative technical solutions for cultivated land redline monitoring. The article also discusses the challenges faced in achieving this paradigm shift in research and provides corresponding recommendations on the connotations of cultivated land protection, delineation of basic land units, and the construction of monitoring networks for implementing national land spatial planning.

  • Scenario simulation of “35 goals” and “50 vision” for Beautiful China Initiative

    Subjects: Statistics >> Social Statistics submitted time 2024-03-27 Cooperative journals: 《中国科学院院刊》

    Abstract: Realizing the Beautiful China Initiative is the general goal of China’s ecological civilization construction in the next 30 years. The overall goal includes two phased goals: “35 goals” and “50 vision”. This study first expounds the understanding of the goal from the aspects of ecosystem elements, structure, process, and function, and then constructs an index system to describe the goal and simulates the “35 goals” and “50 vision” under the trend of climate change, population decline and economic growth. The results show that, by 2035, China will have a population of 1.44 billion (including Hong Kong, Macao, and Taiwan) and a GDP of 200 trillion yuan, making it one of the moderately developed countries. The national forest coverage rate will be 26%; the quality of surface water will reach above Class III, and the quality of offshore waters will reach Class II or above; and urban air quality will reach national excellent standards. By 2050, the country will have a population of 1.365 billion and GDP 380 trillion yuan, entering the ranks of high-income countries. The national forest coverage rate will be 30%; the water quality of surface water and offshore waters will reach Class II standards; and the urban air quality will reach the level of developed countries. There is still a clear gap between the reality and the vision. To achieve the two phased goals of the Beautiful China Initiative as scheduled, we need to vigorously promote pollution reduction, carbon reduction, green expansion, grain increase, and green development in the future.