The Resources of Natural Broad-leavedmixed Forest of Xiaoshan Farm

Sample survey on the natural broad-leavedmixed forest of Xiaoshan farm of Xinqing forestry bureau,detailed analysis wasmade at tree species composition with species richness,tree species composition index,species single scheduling and community evenness,the number of trees and diameter class of the stand were fitted with inverted J-shaped curve,and the growth of the stand was simulated by Richards Equation,the conclusion was showed that: there weremore broad-leaved and less conifer,more cheap and less precious,the species was distributed uneven,the annual increment of themain tree species was showed downward trend,the stand had slowly growth and little potential,so we should build a coniferous coniferousmixed forests of different age by changing species composition and stand structure with artificial update.

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