Forest soils: properties and processes , Forest soils: properties and processes , مرکز فناوری اطلاعات و اطلاع رسانی کشاورزی

Preface. I: Introduction. 1. The History of Agroforestry. 2. Definition and Concepts of Agroforestry. II: Agroforestry Systems and Practices. 3. Classification of Agroforestry Systems. 4. Distribution of Agroforestry Systems in the Tropics. 5. Shifting Cultivation and Improved Fallows. 6. Taungya. 7. Homegardens. 8. Plantation Crop Combinations. 9. Alley Cropping. 10. Other Agroforestry Systems and Practices. III: Agroforestry Species. 11. General Principles of Plant Productivity. 12. Agroforestry Species: the Multipurpose Trees. 13. Component Interactions. IV: Soil Productivity and Protection. 14. Tropical Soils. 15. Effects of Trees on Soils. 16. Nutrient Cycling and Soil Organic Matter. 17. Nitrogen Fixation. 18. Soil Conservation. V: Design and Evaluation of Agroforestry Systems. 19. The Diagnosis and Design (D&D) Methodology. 20. Field Experiments in Agroforestry. 21. On-Farm Research. 22. Economic Considerations. 23. Sociocultural Considerations. 24. Evaluation of Agroforestry Systems. 25. Agroforestry in the Temperate Zone. Glossary. SI Units and Conversion Factors. List of Acronyms and Abbreviations. Subject Index.

Forest Soils: Properties and Processes

An introduction to agroforestry

On the maximum extent of tree roots

Biogeoclimatic ecosystem classification in British Columbia

background

https://www.fs.fed.us/rm/pubs_other/rmrs_2009_neary_d002.pdf

Linkages between forest soils and water quality and quantity

Soil temperature is a necessary component for estimating below-ground processes for continental and global carbon budgets; however, there are an insufficient number of climatic stations monitoring soil temperature. We used a n 11-day running average of daily mean air temperature to estimate daily mean soil temperature at a depth of 10 cm using linear regression. This model was tested using data from 6 climate reg~ons across the United States. Frequency analyses for 17 of 19 data sets showed that the number of days which were w~thin a k3.5OC range centered on the measured sol1 temperature va r~ed from 77 to 96%. The values of R2 between observed and final predicted soil temperatures ranged from 0.85 to 0.96 with standard errors from 1.5 to 2.9"C for all 19 simulations. Changes of soil temperature under snow cover were smaller than those without snow cover. Soil temperature under vegetation cover was also simulated assuming the rate of soil warming under vegetation cover would be reduced with increasing leaf area index according to the Beer-Lambert Law. Annual soil respiration can be estimated from the predicted soil temperature with reasonable accuracy. Daily soil temperature may be predicted from daily air temperature once regional equations have been established, because weather stations in the United States can be generalized into a few regions and sites wthin each region may use the same equation.

/pdf/a-daily-soil-temperature-model-based-on-air-temperature-and-5uw9p1lswj.pdf

Forest Soils: Properties and Processes

Citations

An introduction to agroforestry

On the maximum extent of tree roots

Biogeoclimatic ecosystem classification in British Columbia

Linkages between forest soils and water quality and quantity

A daily soil temperature model based on air temperature and precipitation for continental applications

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