Position: Home > Articles > Dynamics of Nutrients in Precipitation in Subtropical Evergreen Broad-Leaved Forest at Laoshan Mountains,Southern Anhui
Scientia Silvae Sinicae
2011,47
(12)
143-148
安徽老山亚热带常绿阔叶林降雨中的养分动态
作 者：
张赟齐;曾玲梅;王陆军;徐小牛
单 位：
安徽农业大学林学与园林学院
关键词：
森林水文化学;常绿阔叶林;穿透雨;树干径流
摘 要：
森林生态系统对降雨化学性质的影响十分明显,降雨经过森林植被后,其养分种类和数量都发生很大变化。通过降雨输入的养分不仅对森林群落的生长和演替具有重要意义,而且是森林生态系统生物化学循环的重要组成部分,构成森林生态系统养分平衡的基础。国内外有关森林降雨化学的研究较多,涉及到不同的森林类型
译 名：
Dynamics of Nutrients in Precipitation in Subtropical Evergreen Broad-Leaved Forest at Laoshan Mountains,Southern Anhui
作 者：
Zhang Yunqi Zeng Lingmei Wang Lujun Xu Xiaoniu(School of Forestry and Landscape Architecture,Anhui Agricultural University Hefei 230036)
关键词：
forest hydrochemistry;evergreen broad-leaved forest;throughfall;stemflow
摘 要：
In this study,the seasonal dynamic patterns of nutrients in the bulk precipitation,throughfall and stemflow were investigated in a subtropical evergreen broad-leaved forest over one year in Laoshan Natural Reserve,southern Anhui.The results showed that the concentrations of nutrients were significantly increased after rain passed through forest canopies.The mean concentration of K+,Ca2+,Mg2+,NH+4-N,NO-3-N,PO3-4 were,respectively,1.40 mg·L-1,3.08 mg·L-1,0.056 mg·L-1,0.42 mg·L-1,0.51 mg·L-1,and 6.86 μg·L-1 for the bulk precipitation;3.88 mg·L-1,4.69 mg·L-1,0.27 mg·L-1,0.44 mg·L-1,0.94 mg·L-1 and 10.73 μg·L-1 for the throughfall;and 5.78 mg·L-1,8.02 mg·L-1,0.45 mg·L-1,0.94 mg·L-1,1.03 mg·L-1 and 19.98 μg·L-1 for the stemflow.The nutrient concentrations of precipitation fluctuated with rainfall intensity.The nutrient concentrations of throughfall and stemflow were affected by not only atmospheric conditions but the growth stage of trees.
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