Wave convergence principles of agricultural carbon emission efficiency: a multi-level urban agglomeration study

  • 0School of Management, Guangxi University for Nationalities, Nanning, 530006, China.

|

|

Summary

This summary is machine-generated.

Agricultural carbon emission efficiency shows a downward trend, but joint intensity increases in a wave-like pattern. This study analyzes convergence patterns in Chinese urban agglomerations for sustainable development.

Area Of Science

  • Environmental Science
  • Agricultural Economics
  • Urban Planning

Background

  • Agriculture is a significant contributor to global greenhouse gas emissions.
  • Understanding agricultural carbon emission efficiency is crucial for sustainable development.
  • Collaborative governance in urban agglomerations impacts carbon emission systems.

Purpose Of The Study

  • To quantitatively simulate and validate wave convergence patterns of agricultural carbon emission efficiency.
  • To analyze the collaborative governance process between central and surrounding cities in urban agglomerations.
  • To achieve stable and sustainable development goals for carbon emission systems.

Main Methods

  • Enhanced common frontier dynamic super-efficiency SBM model for evaluating agricultural carbon emission efficiency.
  • Dynamic DEA model application.
  • Gravity model to measure joint intensity of agricultural carbon emission efficiency.
  • Wave-like convergence curve function model for validation.

Main Results

  • Agricultural carbon emission efficiency shows a fluctuating downward trend, with regional variations.
  • Joint intensity of agricultural carbon emission efficiency exhibits a wave-like increase and threshold effects.
  • National urban agglomerations demonstrate superior outcomes compared to other groups.
  • Evolutionary curves of agricultural carbon emission efficiency display wave-like convergence.

Conclusions

  • Agricultural carbon emission efficiency in Chinese urban agglomerations demonstrates wave-like convergence patterns.
  • Urban joint development influences the evolutionary trends of agricultural carbon emission efficiency.
  • Findings support the development of sustainable carbon emission systems through collaborative governance.

Related Concept Videos

Adaptations that Reduce Water Loss 01:57

26.4K

Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.

In land plants, the uppermost cell layer of a plant leaf, called the epidermis, is coated with a waxy substance called the cuticle. This hydrophobic layer is composed of the polymer cutin and...

The Carbon Cycle 01:14

40.0K

Carbon is the basis of all organic matter on Earth, and is recycled through the ecosystem in two primary processes: one in which carbon is exchanged among living organisms, and one in which carbon is cycled over long periods of time through fossilized organic remains, weathering of rocks, and volcanic activity. Human activities, including increased agricultural practices and the burning of fossil fuels, has greatly affected the balance of the natural carbon cycle.

Biological Carbon Cycle

All...

Light Acquisition 02:16

8.6K

In order to produce glucose, plants need to capture sufficient light energy. Many modern plants have evolved leaves specialized for light acquisition. Leaves can be only millimeters in width or tens of meters wide, depending on the environment. Due to competition for sunlight, evolution has driven the evolution of increasingly larger leaves and taller plants, to avoid shading by their neighbors with contaminant elaboration of root architecture and mechanisms to transport water and nutrients.

The Calvin Benson Cycle 01:46

4.8K

Ribulose 1,5- bisphosphate carboxylase/oxygenase (RuBisCo) is a critical enzyme that catalyzes carbon dioxide assimilation during photosynthesis. However, it is an inefficient enzyme, having an extremely slow catalytic rate. A typical enzyme can process about a thousand molecules per second; however, RuBisCo fixes only around three-carbon dioxides per second. Photosynthetic cells compensate for this slow rate by synthesizing very high amounts of RuBisCo, making it the most abundant single...

Carbon-dioxide Fixation 01:28

91

Carbon dioxide fixation in prokaryotes enables the assimilation of inorganic carbon into organic molecules, supporting biosynthetic pathways, sustaining ecosystems, and contributing to the global carbon cycle. It also has industrial applications in carbon capture and bioproduct synthesis. Autotrophic organisms rely on this process to utilize CO₂ as a carbon source in diverse environments.The Calvin CycleThe Calvin cycle is the most widespread carbon fixation mechanism, primarily used by...

What is Climate? 01:16

19.0K

Climate refers to the prevailing weather conditions in a specific area over an extended period. As the saying goes, “Climate is what you expect. Weather is what you get.” Climate is influenced by geographic factors, such as latitude, terrain, and proximity to bodies of water.

Weather and Climate

Weather and climate are related, though they differ in terms of time scale and predictability. Weather refers to the state of the atmosphere at a specific time and place, whereas climate...