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| Penman-Monteith方程× | 土壤呼吸测量× | |
|---|---|---|
| 领域 | 农学 | 农学 |
| 方法族 | Process / pipeline | Process / pipeline |
| 起源年份≠ | 1948-1965 | Mid-20th century (chamber methods formalised ~1950s–1970s; automated systems ~1990s) |
| 提出者≠ | Howard Latimer Penman, John Monteith | Multiple contributors |
| 类型≠ | Mechanistic evapotranspiration model | Field measurement technique |
| 开创性文献≠ | Penman, H. L. (1948). Natural evaporation from open water, bare soil and grass. Proceedings of the Royal Society A, 193(1032), 120-145. DOI ↗ | Hanson, P. J., Edwards, N. T., Garten, C. T., & Andrews, J. A. (2000). Separating root and soil microbial contributions to soil respiration: A review of methods and observations. Biogeochemistry, 48(1), 115–146. DOI ↗ |
| 别名≠ | PM Equation, FAO-56 PM, Evapotranspiration Model | soil CO2 efflux measurement, soil carbon flux measurement, belowground respiration measurement, soil surface CO2 flux measurement |
| 相关≠ | 3 | 1 |
| 摘要≠ | The Penman-Monteith equation is a mechanistic model for estimating evapotranspiration (ET), the combined loss of water from soil and plant canopies to the atmosphere. First proposed by Penman (1948) for bare soil and water surfaces, then extended by Monteith (1965) to incorporate plant resistance to water vapor diffusion, it has become the international standard for water balance studies, crop water requirement calculation, and hydrological modeling. | Soil respiration measurement quantifies the rate at which CO2 is released from the soil surface to the atmosphere, integrating contributions from root respiration and microbial decomposition of organic matter. It is a fundamental technique in agronomy, ecology, and climate science, providing insight into belowground carbon cycling, soil biological activity, and ecosystem carbon balance. Measurements are typically made using static or dynamic chambers placed on the soil surface. |
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