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在我国毛竹主要产区浙江省安吉县灵峰寺林场试验林的三个区组中,根据立竹直径分布规律确定样竹处理数后,随机布置总共30套秆流收集装置,持续观察21个月,共获91次秆流水。测定每次秆流水量并分析其N、P、K、Ca、Mg含量以研究毛竹林内秆流的变化动态及其养分输入。结果表明:秆流水中不含Ca,其它四元素的年输入量分别为N-1.8557,P-0.0072,K-0.7849,Mg-0.1569,Kg.ha-1;年秆流量为年降水量的12.5%,无论次、月秆流量与相应降水量均为紧密线性相关,但与立竹粗度为显著非线性相关;其它因子,如:立竹所处的坡位、坡向,竹林密度,钩梢强度,立竹分布状况,植株个体表面结构特征等,亦直接或间接地影响着竹秆流的产生和大小。
In the three block groups of Lingfeng Temple Forest Farm in Anji County, Zhejiang Province, China, a total of 30 stalk collection devices were randomly arranged after the number of sample-treated bamboos was determined according to the diameter distribution of Phyllostachys pubescens. The collection was continued for 21 months , A total of 91 times stalk water. The water flow rate of each stalk was analyzed and the content of N, P, K, Ca and Mg was analyzed to study the dynamic change of stalk flow and its nutrient input. The results showed that the annual input of other four elements was N-1.8557, P-0.0072, K-0.7849, Mg-0.1569, Kg.ha-1, respectively. The precipitation of 12.5%, regardless of times, monthly stem flow and the corresponding precipitation are closely related to the linear, but with rough bamboo significant nonlinear correlation; other factors, such as: stand bamboo slope, slope To bamboo density, tip strength, bamboo distribution, plant surface structure characteristics of individuals, but also directly or indirectly affect the bamboo stems flow generation and size.