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- W2374611951 abstract "The negative air ion concentration of the eco-economic apple stand forest with soil and water conservation in Taihang Mountain area of Heibei Province was determined using the aero-anion determinator for the eco-tourism air quality assessment of region.The results showed that the higher negative air ion concentration is 803lona/cm3 at 6:00-8:00a.m.on the average,with the lowerest of average 576lona/cm3 during 12:00-14:00p.m..and thereafter it rises gradually reaching the highest of average 851lona/cm3 at 16:00-18:00at sunset,which shows a daily variation law of first decrease and then increase.From June to October of 2010,the highest average monthly negative air ion concentration is 928lona/cm3, 826lona/cm3,433lona/cm3,757lona/cm3,and 396lona/cm3,respectively,with a basically gradual decrease except September.The vertical variation of stand negative air ion concentration reaches the highest 520lona/cm3 at 0.5mand the lowest 301lona/cm3 at 3.5mas a rule. Along with the increase of height,the negative air ion concentration decreases with higher concentration on the slope than at the ditch,but with no significant difference between them.The negative air ion concentration of apple stand at different ages shows stand age of 28(592lona/cm3)stand age of 14(463lona/cm3)stand age of 10(384lona/cm3.Negative air ion concentration are inversely related with temperature but positively related with humidity." @default.
- W2374611951 created "2016-06-24" @default.
- W2374611951 creator A5052489574 @default.
- W2374611951 date "2014-01-01" @default.
- W2374611951 modified "2023-10-03" @default.
- W2374611951 title "Study on the features of negative air ion of eco-economy apple stand forest with soil and water conservation in Taihang Mountain area of Hebei Province" @default.
- W2374611951 hasPublicationYear "2014" @default.
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