Dynamic assessment of the ecological value of cultivated land based on the Gompertz curve model: A case study of Lezhi County, China
Contact us if these videos are not relevant.
Contact us if these videos are not relevant.
View abstract on PubMed
Summary
This summary is machine-generated.This study developed a dynamic model to assess cultivated land
Area Of Science
- Ecological Economics
- Environmental Science
- Agricultural Economics
Background
- Ecological compensation mechanisms require dynamic evaluation of cultivated land's ecological value (EVCL).
- Existing models may lack the precision to capture the evolving nature of EVCL.
- Assessing EVCL is crucial for effective environmental policy and resource management.
Purpose Of The Study
- To construct and validate a dynamic assessment model for EVCL using the Gompertz curve.
- To examine the influence of evolving ecological compensation policies on EVCL.
- To provide a methodological framework for regional EVCL assessment and policy evaluation.
Main Methods
- Development of a dynamic EVCL assessment model based on the Gompertz curve.
- Quantification of key ecosystem services (agricultural supply, water conservation, carbon sequestration, soil conservation) using the functional value method.
- Logarithmic linearization for Gompertz equation parameter estimation, utilizing GDP growth rate and comparing with the Pearl curve (R², RMSE).
Main Results
- The Gompertz model demonstrated superior fitting stability and correction capacity compared to the Pearl curve.
- Estimated EVCL per hectare reached CNY 704,250 in 2022 (constant 1990 prices).
- EVCL exhibits an asymmetric S-shaped growth trajectory, correlating with policy evolution and institutional maturity.
Conclusions
- The Gompertz curve model effectively captures the dynamic EVCL and its response to policy changes.
- The study provides a robust method for estimating EVCL from 1979 to 2052.
- Findings offer valuable insights for refining ecological compensation policies and management strategies.
Contact us if these videos are not relevant.
Contact us if these videos are not relevant.
Related Concept Videos
Flood risk assessment involves careful planning and analysis to ensure the safety of communities near water retention structures. Capacity contours are a vital tool in this process, as they illustrate the potential spread of water at specific levels in a given area. In the context of building a bund across a small valley, these contours play a critical role in evaluating the safety of nearby residential areas.In this example, the bund is intended to store stormwater in the valley. The engineers...
Geographic Information Systems (GIS) operate across three levels of application, each representing an increasing degree of complexity: data management, analysis, and prediction. These levels reflect the expanding functionality and versatility of GIS technology in handling spatial data for diverse purposes.Data ManagementAt its foundational level, GIS serves as a tool for data management, enabling the input, storage, retrieval, and organization of spatial data. This level is often employed in...