Frontiers in Science and Engineering

Discussion on Ecological Development and Governance Technology of Urban Land

Haiou Zhang, Yingguo Wang, Dongwen Hua — Thu, 21 Sep 2023 00:00:00 -0400

New urbanization is the only path to modernization and an important way to solve the problems of agriculture, rural areas, and farmers. The premise of ecotype city construction is to make our land cleaner, healthier and safer. Land is the foundation of urban construction and sustainable development, so how to save, intensively, and efficiently use land to make new space for rural urbanization development. This article summarizes the comprehensive development and governance technology of urban land ecology through literature analysis and years of engineering practice. Taking the Shichuan River Comprehensive Development Project in Fuping, Shaanxi Province, China as an example, it provides a detailed introduction to the new model of land ecological remediation promoting the future construction of new rural areas and urbanization in China, with the aim of providing theoretical basis and technical guidance for the construction of new urbanization in China.

Model Algorithm Research based on Python Fast API

Junqiao Chen — Thu, 21 Sep 2023 00:00:00 -0400

In recent years, the application of Python programming language in developing web services has gained significant attention, with FASTAPI emerging as a prominent framework for its rapid development and efficient performance. This paper delves into the realm of model algorithm research, leveraging the capabilities of Python's FASTAPI framework. Through this study, we explore the integration of advanced algorithms within the context of web-based applications. By focusing on the seamless amalgamation of algorithmic processes with FASTAPI's structure, we aim to demonstrate the feasibility and advantages of utilizing this combination in various research and practical scenarios. Coupled with illustrative examples, this paper highlights the potential of Python FASTAPI as a robust platform for driving model algorithm research across diverse domains.

Progress in the Study of the Drivers of the Transformation of Arable Land Use

Liheng Xia, Yilun Dai, Jinyang Zhang — Thu, 21 Sep 2023 00:00:00 -0400

The sustainable use of arable land is a necessity to ensure future global food security. Arable land provides most of the food and necessities of life for human beings, and is the key to achieving the "poverty-free" (Sustainable Development Goals 1, hereinafter referred to as SDG1), "zero hunger" (SDG2), "sustainable cities and communities" (hereinafter referred to as SDG2) and "sustainable cities and communities" (hereinafter referred to as SDG2) objectives of the United Nations Sustainable Development Programme. SDG1 (hereinafter referred to as "SDG1"), "Zero Hunger" (SDG2), "Sustainable Cities and Communities" (SDG11), and "Climate Action" (SDG13) of the United Nations Sustainable Development Programme (SDP), "terrestrial organisms" (SDG15), and other key resource-environmental elements of the Sustainable Development Goals (SDGs). Cropland expansion and cropland intensification have been important strategies for increasing food production, but with the global depletion of cropland reserves, increasing food production by expanding the area of cropland is no longer viable, and the pressure for food security has shifted to the existing cropland, which accounts for 38 per cent of the global terrestrial area. In the last 20 years, global food production has almost doubled, but the area of arable land has increased by only 9%. Demand for food is accelerating in tandem with rapid global economic and social development, population expansion and improved diets. The global demand for food is expected to increase by about 70 to 100 per cent by 2050, which not only puts enormous pressure on existing arable land but also poses a great challenge to the future food security of the world. The sustainable use of existing arable land is the only way to meet the growing demand for food and avoid a global food crisis.

A Review of Virtual Water Research

Chao Liu, Yifan Wang, Yaozong Zhang — Thu, 21 Sep 2023 00:00:00 -0400

A comprehensive and objective understanding of the amount of water resources occupied by human activities is an important way to improve the existing water resources management. The theory of virtual water is a brand-new concept proposed at the end of the 20th century to solve the problems of water resource shortage and water resource security. Based on a brief analysis of virtual water and its related concepts, this paper introduces the research status of related theories at home and abroad, discusses from the perspectives of water footprint, virtual water quantitative calculation, virtual water trade, virtual water strategy, etc., and points out that virtual water plays a vital role in maintaining regional peace. Stabilizing and promoting regional economic development is of great significance. It also examines the imperfections in the existing theories of virtual water and looks forward to the future research directions of virtual water.

Current Situation and Improvement Suggestions of Cultivated Land Quality in Shaanxi Province

Jinyang Zhang, Yutong Sun, Pengxin Jin — Thu, 21 Sep 2023 00:00:00 -0400

China has a vast territory and abundant resources. Agriculture is a fundamental industry in China, and cultivated land is also a very important part of agricultural production. The quality of cultivated land is crucial. By continuously improving the quality of cultivated land, the quality of agricultural products can be improved, forming a virtuous cycle. Farmers should actively respond to the call of the country, use idle land to continuously expand the area of arable land, and the government should play a corresponding regulatory role.