• 全国中文核心期刊
  • 中国科技核心期刊
  • 美国工程索引(EI)收录期刊
CAO Yun, HUANG Zhi-gang, ZHENG Hua, OUYANG Zhi-yun. Variation characteristics of throughfall in citrus orchard[J]. Advances in Water Science, 2007, 18(6): 853-857.
Citation: CAO Yun, HUANG Zhi-gang, ZHENG Hua, OUYANG Zhi-yun. Variation characteristics of throughfall in citrus orchard[J]. Advances in Water Science, 2007, 18(6): 853-857.

Variation characteristics of throughfall in citrus orchard

Funds: The study is financially supported by the National Natural Science Foundation of China(No.40621061,30230090).
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  • Received Date: September 14, 2006
  • Revised Date: January 08, 2007
  • To investigate the characteristics of throughfall in citrus orchard in this study. Results show that:throughfal percentage of gross rainfall accounts for 68.3% during the whole measurement period.The maximal volume of throughfall(245.1 mm)occurred in May and the maximal throughfall percentage(73.3%)occurres in August. There is significantly positive correlation between throughfall and rainfall depth(p<0.01),as wel as the correlation between throughfall percentage and rain fall depth or rainfall intensity(p<0.05).The significant spatial variation in throughfall is observed below the canopy of citrus orchard. Moreover,the spatial heterogeneity of throughfal among different sampling sites varies significantly(p<0.05)and the CV of throughfal percentage decreases with the increase of rainfall depth or rainfall intensity. The cluster analysis shows throughfal percentage amongal sampling sites differs significantly(p<0.05),and the throughfall below the canopy has the evident rainfall concentration in citrus orchard.
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