Effects Of Management Disturbance On Spatial Pattern And Growth Characteristics Of Phyllostachys Heterocycla Cv.Pubescens

Phyllostachys heterocycla cv. pubescens has important effects on economy, ecology and society. According to demand and utilization of different business objectives, usually adopt different Phyllostachys heterocycla cv. Pubescens forest management measures or managing mode. The research analyasis kinds of typical management patterns in lishui, zhejiang province, Under different management patterns, this paper expounds that spatial distribution pattern and intraspecific response of relevance to run interference action spatial associations of Phyllostachys heterocycla cv. Pubescens; In the fertilization management, this paper studies that the influence of the biological characteristics on shoots, leaves, and fine root growth. The main results as follows:1. Spatial distribution patterns of Phyllostachys heterocycla cv. pubescens Population under different management patterns, I class management mode, the Phyllostachys heterocycla cv. pubescens populations on the scale of0to10m space on a general random distribution; II class management pattern bamboo population overall in a small scale (<0.8m) present a random distribution, in larger scale (1.0-3.0m) on an even distribution, in a large scale (>4m) present a random distribution; III class management pattern bamboo population overall appears even distribution as a relatively small scale (<3.8m) and the random distribution as a relatively large scale (>3.8m). From different management patterns, with the increase of business interference intensity, the whole tend to be evenly distributed from random distribution, and reflects action of dynamic change of Phyllostachys heterocycla cv. pubescens in spatial pattern in the process of management.2.Correlation between intraspecific of Phyllostachys heterocycla cv. pubescens Population under different management patterns, In I class management mode, the new-born and old bamboo in the space scale of0to10m independently, In artificial management pattern weaker, resources are not competitive in new-born and old of the Phyllostachys heterocycla cv. pubescens. In II class management mode, new-born and old of the Phyllostachys heterocycla cv. Pubescens in smaller scales were positively associated. In Ⅲ class management mode, Mao Zhulin sample area in general, new-born and old of the Phyllostachys heterocycla cv. Pubescens in in1-5m scale were positively associated. The paper showed that the old has a promoting effect on the new of Phyllostachys heterocycla cv. pubescens. 3.From the point of individual branch and leaf biomass, fertilization can make bamboo canopy central relative increased, and in2-38, each branch number, weight of fertilizer branch lager than weight of no-fertilizer branch. the weight of fertilizer lager than weight of no-fertilizer in each branch number leaf plate.In the total biomass, fertilization can make shoots-leaf canopy central relative increased of Phyllostachys heterocycla cv. Pubescens, and on each branch number plate, weight of fertilizer branch-leaf lager than weight of no-fertilizer.4. In the case of different furrow treatment,3m fertilization groove on the0-1mm of fine root biomass, root volume, root surface area, the most and reach significant level. Furrow fertilization treatment for3m, root length and root tip number that on a scale of0-1mm,1-2mm,2-5mm,0-5mm diameter of fine root is the largest and root number that on a scale of0-1mm and0-5mm of fine root diameter reach the level of the test of significance. Overall, fine root biomass, root length, root tip number, root volume, root surface area in3m ditch treatment effect is best, and under the0-1mm diameter of fine root, reach the significance test level.5.On the different fertilization distance, from fertilized groove and fertilizer groove outside of50cm total indicators can be seen that fertilizing groove on the biomass, root length, root surface area, root volume, root tip number is the largest. Fertilizing groove for3m was higher than1m and2m in the total amount of biomass and reached significant level. On the different level of fine root diameter, biomass of fertilizer groove for3m is greater than fertilizer groove outside of50cm. root tip number and root length that on the scale of fertilizer groove for3m, fertilizer groove for2m and fertilizer groove for1m is larger than3m fertilizer groove outside of50cm,2m fertilizer groove outside of50cm and1m fertilizer groove outside of50cm,and reached signidicant level.