相关实验视频
Updated: Jul 5, 2025

09:05
Measurements of CO2 Fluxes at Non-Ideal Eddy Covariance Sites
Published on: June 24, 2019
7.9K
基于生态足迹和生态系统服务价值的土地资源的自然资本会计
Bei Wang1, Weijun He2, Min An1
1Research Center for Reservoir Resettlement, China Three Gorges University, Yichang 443002, Hubei Province, PR China; College of Economics & Management, China Three Gorges University, No.8, University Avenue, Yichang, PR China.
The Science of the total environment
|January 13, 2024
概括
本研究建立了一个土地资源会计系统,以评估重庆的土地数量,价值和空间分布. 调查结果显示,土地资产价值显著增长,但也突出了草原过度利用和区域差异.
科学领域:
- 环境科学 环境科学
- 自然资源管理自然资源管理
- 生态经济学生态经济学
背景情况:
- 土地资源对于人类的生存和发展至关重要.
- 过度利用和低估土地导致资源枯竭.
- 需要一个科学自然资本会计系统来监测土地的数量和价值.
研究的目的:
- 建立对土地资源的科学自然资本会计系统.
- 编制土地资源资产负债表,以进行全面的土地利用评估.
- 分析2000年至2020年重庆市土地资源的数量,价值和空间分布.
主要方法:
- 改进的生态足迹方法使用净初级生产率来计算实物土地数量.
- 改进的等效因子方法,利用生物生产性土地面积来计算土地价值.
- ArcGIS用于展示土地资源的空间和时间变化.
主要成果:
- 重庆的土地资产价值和股权价值分别增长了5.9和5.1倍.
- 草地虽然富有生产力,但在2020年过度利用率超过承载能力的40.9%,原因是重视生产而不是保护.
- 土地价值呈现出一个空间模式,在东南/东北高,在中西部低,增长率不平衡.
结论:
- 开发的会计系统提供了对土地资源的全面评估.
- 调查结果强调需要平衡土地利用,特别是草原,并解决区域差异.
- 该研究为土地资源管理和国有资产管理提供了有价值的参考资料.
更多相关视频
相关概念视频
The Soil Ecosystem
19.9K
Plants obtain inorganic minerals and water from the soil, which acts as a natural medium for land plants. The composition and quality of soil depend not only on the chemical constituents but also on the presence of living organisms. In general, soils contain three major components:
19.9K
Ecological Niches
23.6K
All organisms have a position within an ecosystem. The complete set of living and nonliving factors—including food resources, climate, and terrain—that define the position of a given organism are collectively referred to as the organism’s ecological niche.
23.6K
Trophic Efficiency
20.5K
Trophic level transfer efficiency (TLTE) is a measure of the total energy transfer from one trophic level to the next. Due to extensive energy loss as metabolic heat, an average of only 10% of the original energy obtained is passed on to the next level. This pattern of energy loss severely limits the possible number of trophic levels in a food chain.
20.5K
What is an Ecosystem?
39.7K
Overview
39.7K
Production Efficiency
16.8K
Net production efficiency (NPE) is the efficiency at which organisms assimilate energy into biomass for the next trophic level. Due to low metabolic rates and less energy spent on thermoregulatory processes, the NPE of ectotherms (cold-blooded animals) is 10 times higher than endotherms (warm-blooded animals).
16.8K
Sustainable Development
13.3K
As the human population continues to grow and use resources, we must be mindful of our planet’s natural limits. Sustainable development provides a pathway to maintain and improve human life now while also ensuring that future generations will have the resources that they need. The long-term success of sustainability efforts rests on understanding the interplay between human actions and ecological systems.
13.3K

