Climate and Agriculture : an Ecological Survey / Jen-hu Chang.
"This summary of what is known about microclimatic environments and the effects of climate on plant growth presents a comprehensive statement on the complex relationship between climate and agriculture. The author covers the theory and data of modern physical geography, meteorology, and agronom...
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Full Text (via Taylor & Francis) |
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| Format: | eBook |
| Language: | English |
| Published: |
London :
Taylor and Francis,
2017.
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| Edition: | First edition. |
| Subjects: |
Table of Contents:
- Cover; Half Title; Title Page; Copyright Page; Dedication; Contents; List of Symbols; 1. INTRODUCTION; 2. RADIATION BALANCE; Solar constant; Solar spectrum; Depletion by the atmosphere; Measurements of global radiation; Radiation and duration of sunshine; Radiation and cloudiness; Distribution of solar radiation; Refiectivity; Outgoing radiation; Net radiation; Radiation balance in the greenhouse; Biosphere as the locale of energy exchange; 3. PHOTOSYNTHESIS; General effects of radiation on plant growth; Basic process of photosynthesis.
- Saturation light intensity and the efficiency of light utilizationPhotosynthesis in relation to temperature; Photosynthesis in relation to CO2 concentration; Respiration and net photosynthesis; Other factors affecting the rate of net photosynthesis; 4. RADIATION DISTRIBUTION WITHIN THE PLANT COMMUNITY; Leaf transmissibility; Leaf arrangement; Radiation and light distribution within the canopy; Net radiation profile; 5. LEAF AREA INDEX; Basic concept; Net photosynthesis as a function of leaf area index and extinction coefficient.
- Dry matter production as a function of radiation and leaf area indexVariation of leaf area index throughout the crop cycle; Leaf area index as a guide to cultural practices; 6. RADIATION UTILIZATION BY FIELD CROPS; Efficiency of radiation utilization by field crops; Computation of potential photosynthesis; Comparison between the tropics and temperate regions; Radiation utilization during successive stages of crop development; Empirical relationship between radiation and crop yield; Shade experiments and artificial fight; 7. PHOTOPERIODISM; Historical background; Classification.
- Photoperiodic inductionRelation to temperature; Photoperiodism as a factor in plant distribution; Response of tropical plants; Practical applications; 8. AIR AND LEAF TEMPERATURE; Cardinal temperatures; The Vanâ#x80;#x99;t Hoff law; Degree-day; Thermoperiodicity; Thermal regime in the tropics; Temperature records; Leaf temperature; 9. SOIL TEMPERATURE; Significance of soil temperature; Methods of measurements and records; Thermal properties of soils; Physical laws governing the change of soil temperature; Soil texture; Aspect and slope; The effect of tilth; Soil temperature and crop yield.
- Methods of modifying soil temperature10. FROST PROTECTION; The damaging effects of freezing temperature; Frost weather; Heater; Wind machine; Flooding and sprinkling; Brushing; Sanding; Windbreaks; 11. WIND PROFILE NEAR THE GROUND; The logarithmic equation; Deaconâ#x80;#x99;s equation and the Richardson number; Wind profile over tall crops; Roughness and zero plane displacement; Significance of roughness; 12. WATER IN RELATION TO PLANT GROWTH; General effects; Effect of water on photosynthesis; Transpiration; Transpiration and dry matter production; 13. EVAPOTRANSPIRATION; Definition.