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- W2374700275 abstract "Based on the main factors of photosynthetic active radiation measured in the farmland shelter forest network from 2010 to 2012, the photosynthetic effective radiation and light transmittance in different stages of maize growth periods were analyzed. The results show that with the increase of the distance from maize to tree, the photosynthetic active radiation(PAR) presented the increasing tendency. The light intensity distribution and the light transmittance changed relative greatly in the range of 15 meters treemaize distance, and when beyond 15 meters tree-maize distance the two indexes' increasing amplitude slowed down and reached the position of control point; compared the 2012 to 2010, the light transmittance decreased by 9.88%, 8.57%, 12.02%, 2.23% and 0.87%, respectively. The light transmittance values of different tree-maize distance in the poplar forest network system were measured from 2010 to 2012. The results show that when the distance and tree height(X) were 0.1, 0.5, 1.0, the light transmittance was respectively 43.03%, 75.20% and 92.92%, and shading rate was 56.97%, 24.80% and 7.08% respectively. In the system, the photosynthetic effective radiation and light transmittance at the observation points of 1.5 meters and 7.5 meters were greatly affected by shading degree, and the other observation points were less affected. The shading degree was gradually improved with the increase of forest age. Comprehensive analysis showed that the sphere of influence on light intensity of maize growth period was in range of 15 meters in farmland shelter forest network system." @default.
- W2374700275 created "2016-06-24" @default.
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- W2374700275 date "2013-01-01" @default.
- W2374700275 modified "2023-09-25" @default.
- W2374700275 title "Characteristics of light intensity in different age poplar forest network system" @default.
- W2374700275 hasPublicationYear "2013" @default.
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