人工桤柏混交林中降雨对养分物质的淋溶影响

生态学杂志 ›› 1996, Vol. ›› Issue (5): 12-15,22.

人工桤柏混交林中降雨对养分物质的淋溶影响

彭培好, 王金锡, 胡振宇, 高华东

四川省林业科学研究院, 成都 610081

收稿日期:1995-07-26 修回日期:1995-09-27 出版日期:1996-10-10

The Effects of the Partioning of Rainfall on the Nutrients Leaching Processes in the Mixed Alnus Cremastogyne and Cupressus Funebris Forest

Peng Peihao, Wang Jinxi, Hu Zhenyu, Gao Huadong

Sichuan Research Institute of Forestry, Chengdu 610081

Received:1995-07-26 Revised:1995-09-27 Online:1996-10-10

摘要/Abstract

关键词: 证据权重法, 综合评价, 沉积物质量评价, 沉积物

Abstract: Water quality of rainfall changes greatly after passing throngh trees canopy in the watershed.In this paper,an artificial mixed forest was chosen to measure the precipitation inside and outside of the forest, and stemflow as well as the variations of their nutrient contents.By analysing the characteristics of rainfall partitioning ,the water qualilty,the nutrient input and cycling processes were discussed.The results showed that the concentrations of NH₄-N,NO₃-N,P,K,Ca and Mg were different among rainfall,throughfall and stemflow.In accordance with the rainfall partitioning,nutrients entered the field both as point source and area source,from which two different processes of translocation were found.The nutrient contributions in the field by rainfall and leaching from trees were also discussed.

Key words: weight of evidence (WOE) approach, integrated assessment, sediment quality assessment, sediment.

彭培好, 王金锡, 胡振宇, 高华东. 人工桤柏混交林中降雨对养分物质的淋溶影响[J]. 生态学杂志, 1996, (5): 12-15,22.

Peng Peihao, Wang Jinxi, Hu Zhenyu, Gao Huadong. The Effects of the Partioning of Rainfall on the Nutrients Leaching Processes in the Mixed Alnus Cremastogyne and Cupressus Funebris Forest[J]. cje, 1996, (5): 12-15,22.

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