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| Web URL(s): | http://files.asianturfgrass.com/irradiance.pdf
Last checked: 07/15/2015
Requires: PDF Reader |
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| Publication Type:
| Professional |
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| Author(s): | Woods, Micah |
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| Author Affiliation: | Chief Scientist, Asian Turfgrass Center |
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| Title: | How much do clouds affect photosynthetic irradiance?: Measures of light at Thailand, Hong Kong, Vietnam, and Japan |
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| Source: | Viridescent - The Asian Turfgrass Center Blog. [2012], p. 1-5. |
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| Publishing Information: | Kwan Kannayao, Khet Kannayao, Bangkok, Thailand: Asian Turfgrass Center |
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| # of Pages: | 5 |
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| Keywords: | TIC Keywords: Clouds; Growth factors; Irradiance; Irrigation practices; Light intensity; Nitrogen; Photosynthesis; Physiological processes; Regional variation; Temperatures
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| Geographic Terms: | Eastern Asia; Southeastern Asia |
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| Abstract/Contents: | "The main factors influencing turfgrass growth are nitrogen, water, temperature, and light. Turfgrass managers are able to modify the nitrogen and water supply to the grass, but are limited in the amount of change they can make to the temperature and the light. Light, more specifically the instantaneous photosynthetic irradiance, was measured at multiple locations in East and Southeast Asia during July, August, and September of 2012. Because of typical cloud cover in these regions during this season, the average photosynthetic irradiance at midday was 30% lower than in full sun, with photosynthetic irradiance reduced by 50 to 75% on cloudy days. A daily light integral was calculated based on these measurements. In 3 days of measurements at Hong Kong, 17 days at Thailand, 2 days at Vietnam, and 33 days in Japan, the average daily light integral (DLI) was 38.4 mol m-2 d-1 at Hong Kong, 35 at Thailand, 38 in the Ryukyu Islands, 48.1 in Central and West Japan, and 22.4 in Vietnam. This report provides details of these measurements and gives suggestions on how these meters can have practical use for turfgrass managers." |
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| Language: | English |
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| References: | 10 |
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| Note: | Map
Pictures, color
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Woods, M. [2012]. How much do clouds affect photosynthetic irradiance?: Measures of light at Thailand, Hong Kong, Vietnam, and Japan. Viridescent - The Asian Turfgrass Center Blog. p. 1-5. |
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| Web URL(s):
http://files.asianturfgrass.com/irradiance.pdf
Last checked: 07/15/2015
Requires: PDF Reader |
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Digitally in TIC by record number. |
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