| 热研7-33-97橡胶人工林水文过程中的养分特征 |
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| 引用本文： | 谢学方,蒋菊生,阮云泽.热研7-33-97橡胶人工林水文过程中的养分特征[J].热带作物学报,2010,34(2):51-54. |
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| 作者姓名： | 谢学方 蒋菊生 阮云泽 |
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| 作者单位： | 1 中国热带农业科学院橡胶研究所2 海南大学环植学院;2 海南大学环植学院3 海南省农垦科学院;海南大学农学院 |
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| 摘 要： | 对中国热带农业科学院试验场３队和４队的16龄和22龄的热研7-33-97橡胶人工林水文过程中养分N、P、K进行了研究。结果显示：降雨过程中N、P、K养分都有盈余。但在季节性变化中P在3、4月份有亏损；大气降雨和穿透雨是降雨养分输入的主要形式， 分别占总养分输入量的42.84 %和52.69 %，树干径流占4.47 %；树龄大穿透雨养分输入较小，坡度大的地表径流输出的养分多。
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| 关 键 词： | N、P、K养分 地表径流 树干茎流 穿透降雨 |
Nutrient Characteristics of Reyan 7-33-97 Rubber Trees in the Process of Raining |
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| XIE Xuefang,JIANG Jusheng and RUAN Yunze.Nutrient Characteristics of Reyan 7-33-97 Rubber Trees in the Process of Raining[J].Chinese Journal of Tropical Crops,2010,34(2):51-54. |
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| Authors: | XIE Xuefang JIANG Jusheng and RUAN Yunze |
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| Institution: | 1 Rubber Research Institute, CATAS2 College of Environment and Plant Protection, Hainan University;2 College of Environment and Plant Protection, Hainan University3 Academy of Hainan State Farms;College of Agronomy, Hainan University, |
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| Abstract: | Studies were made on the N, P, K nutrients of Reyan 7-33-97 rubber trees of 16 and 22 years old in the process of raining at the Chinese Academy of Tropical Agricultural Sciences. The results showed that N, P, K nutrients were superfluous in the process of raining. But P was deficient in the seasonal changes in March and April. Atmospheric precipitation and penetrating rainfall were the main forms of nutrient input, accounting for respectively 42.84 % and 52.69 % of the total amount of nutrient inputs; and trunk runoff accounted for 4.47 %. Nutrient inputs were less for the older trees by penetrating rain. Nutrient outputs were more for the steeper slope by surface runoff. |
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