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您的检索式：作者名="Sun Zhaowan"
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| 1 | A motion location based video wa- termarking scheme using ICA to extract dynamic frames 显示文摘 | Sun Zhaowan Liu Ju Sun Jiande | 2009 | Neural Computing and Applications2009，18，5： | 1 |
| 2 | A motion location based videowatermarking scheme using ICA to extract dynamic flames显示文摘 | Sun Zhaowan Liu Ju Sun Jiande | 2009 | Neural Comput and Applic2009，，18： | 1 |
| 3 | Changes in ecological stoichiometry and nutrient resorption in Castanopsis hystrix plantations along an urbanization gradient in the lower subtropics显示文摘The stoichiometry of carbon,nitrogen and phosphorous in plants can reflect the interactions between plants and their environment.The interplay between plant nutrients,climatic factors,and soil properties and the underlying regulatory mechanisms are pillars of ecology but remain underexplored.In this study of plant C-N-P stoichiometry and nutrient resorption in Castanopsis hystrix groves in three cities(Guangzhou,Zhongshan,and Lechang)that represent an urban-rural gradient in Guangdong Province,South China,we explored potential relationships among NO_(2) concentrations,diameter at breast height(DBH),and resident human population.Mean annual temperature,mean annual precipitation,insolation duration per year,and the human resident population differed significantly among the three cities.Soil C-N-P was always highest in suburban Lechang,and the concentration of NO_(2) was highest in urban Guanghzou(55.33±0.67μg m^(-3))and positively correlated with the resident population and leaf N:P.Our findings suggest that C-N-P stoichiometry of C.hystrix was better explained by NO_(2)than by soil C-N-P stoichiometry and that nutrient resorption was better explained by leaf nutrients and DBH than by NO_(2) and soil stoichiometry.Our study supports the hypothesis that rapid urbanization influences NO_(2) concentrations and microclimate,which may jointly change the stoichiometry of plant nutrients in the forest ecosystems. | Feifan Li Bing Sun Zhaowan Shi Nancai Pei | 2021 | Journal of Forestry Research2021，32，6： | 1 |
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