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The Research on the Fertilization Biological Effect of Low-Yield Moso Bamboo in Longquan City of Zhejiang Province and Its Improvement Evaluation

Author: CuiHuiPing
Tutor: PanXiaoFang;JinAiWu
School: Guangxi University
Course: Forest cultivation
Keywords: Bamboo Low forest Fertilize Bamboo Densities Biological effects Zhejiang Longquan City
CLC: S795
Type: Master's thesis
Year: 2008
Downloads: 37
Quote: 0
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Abstract


Longquan City, Zhejiang Province pubescens area, but most woodland site conditions, backward technology, management, and basically in the extensive management of low-yield, inefficient state. On the the fertilizing the study and evaluation of the biological effects of the low-yielding inefficient pubescens mode to provide a scientific basis for development and evaluation of low-yielding the inefficient pubescens transformation measures will southwestern Zhejiang region. In this study, mode of fertilization, traditional fertilization, no fertilizer (control) to transform the three townships of Longquan City Xiaomei, Zheng side, mountain Xikou low-yielding pure Moso After the transformation, the set per plant survey sample, using standard strains Determination of high bamboo, bamboo weight, biomass, bamboo wall thickness of the biological effects indicators to study the biological effects of different fertilization mode. The results show that: (1) mode of fertilization, traditional fertilization, no fertilizer bamboo density forest discrete, Moso bamboo average DBH impact of large, the fertilization mode bamboo density and average diameter at breast height maximum (194 / 666.7m of 2 , 11.4 cm), significantly higher than other methods. (2) fertilization mode Hsinchu average DBH of 11.6 cm, was significantly greater than the other methods; Hsinchu number of bamboo 75 / 666.7m 2 , significantly greater than traditional fertilization, with no fertilizer extremely significant differences. (3) mode fertilization treatments average individual bamboo sticks heavy, heavy leaves, bamboo, and the total weight of the aerial parts were 5.23kg, 2.09kg, 29.62 kg and 36.94 kg, the mode of fertilization on leaf weight and material weight per plant significantly The above no fertilizer woodland branches was significantly higher than no fertilizer. Mode the fertilizer unit area branches heavy leaves, bamboo weight, the weight of the aerial parts were: 1015.61 kg/666.7m 2 , 405.86kg, 5751.91 kg/666.7m 2 7173.38 kg/666.7m 2 , no fertilizer, respectively, an increase of 74.6%, 49.4%, 41.9% and 46.2%. After fertilization (4) mode, Moso Bamboo average section length of 25.69 cm, its bamboo segment (a segment of five in a row), the length was nearly normal distribution, the two fertilization bamboo length peak are located in paragraph 6. The central diameter of the bamboo section becomes smaller with increasing the segment number (from of Phyllostachys edulis portion counting) was Y =-1.1117X 13.678 relationship. Bamboo length of its central diameter Y =-3.4084X 2 45.689X 12.56 relationship exists. The average wall thickness of 0.89 cm in the mode of fertilization significantly thicker than fertilization. The bamboo segment (the bamboo to bamboo stalk height of a 1/10 share) Weight with increasing segment number is reduced, was Y = 8.7897e -0.2434X exponential curve Relations, Central diameter the location of their each segment was Y =-0.9464X 12.745 negative linear correlation. (5) the density of different bamboo Moso Bamboo average DBH differences stand average DBH density rating of 1 to 4 were 10.8 cm and 10.6 cm, 11.3 cm and 10.9 cm, with the bamboo density increases, average DBH The first increase in the amount of 161 to 190 bamboo / 666.7m 2 , reached a maximum; With the the bamboo density continues to increase, the average DBH gradual downward trend. (6) different bamboo density per plant bamboo weight difference was very significant, a high degree of correlation of the density of bamboo and bamboo is not significant, the average individual material weight and density of bamboo reach a significant level. Density level 3 stand their timber-producing the highest, followed by density level 4 the amount of timber producing and timber-producing the least amount of Level 1. (7) the transformation context, the most ideal regression equation for bamboo height and diameter at breast height H = 0.246X 2 -3.554X 21.783; the ideal regression equation between the monoclonal bamboo heavy with DBH W = 1.695X 2 -30.364X 157.668. (8) Longquan City Bamboo Low Lin transformation, stand an average density of 154 bamboo / 666.7m 2 . 1 to 3 degrees bamboo accounted for 92% in each age class bamboo, aging bamboo proportion of only 4 degrees and 4 degrees above 8%, 1,2,3 degrees bamboo percentage of approximately 1.59:1.36:1 The amount of average annual output of material: 573 kg/666.7m 2 , most of Moso Bamboo average DBH 10 cm ~ 12 cm range. Compared with Zhejiang Bamboo low change project technical specifications (Trial) \(9) The mode of fertilization than traditional fertilization better economic efficiency per unit area increased economic benefits 128.6 yuan / 666.7m of 2 .

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