Knowledge Resource Center for Ecological Environment in Arid Area
| 报告编号 | NASA-CR-163002, R80-7, OSP-87326, REPT-254 |
| 来源ID | NTRS_Document_ID: 19800014267 |
| Estimation of effective hydrologic properties of soils from observations of vegetation density | |
| Tellers, T. E.; Eagleson, P. S. | |
| 英文摘要 | A one-dimensional model of the annual water balance is reviewed. Improvements are made in the method of calculating the bare soil component of evaporation, and in the way surface retention is handled. A natural selection hypothesis, which specifies the equilibrium vegetation density for a given, water limited, climate soil system, is verified through comparisons with observed data. Comparison of CDF's of annual basin yield derived using these soil properties with observed CDF's provides verification of the soil-selection procedure. This method of parameterization of the land surface is useful with global circulation models, enabling them to account for both the nonlinearity in the relationship between soil moisture flux and soil moisture concentration, and the variability of soil properties from place to place over the Earth's surface. |
| 英文关键词 | ENVIRONMENT MODELS HYDROLOGY SOIL MOISTURE VEGETATION GROWTH WATER BALANCE ALGORITHMS COMPUTER PROGRAMS EVAPOTRANSPIRATION STATISTICAL ANALYSIS |
| 出版年 | 1980 |
| 报告类型 | Technical Report |
| 语种 | 英语 |
| 国家 | 美国 |
| URL | http://hdl.handle.net/2060/19800014267 |
| 资源类型 | 科技报告 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/258819 |
| 推荐引用方式 GB/T 7714 | Tellers, T. E.,Eagleson, P. S.. Estimation of effective hydrologic properties of soils from observations of vegetation density,1980. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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