Biodiversity And Soil Fertility Of The Forest-chicken Ecosystem

As one of “Poultry-woods” system, free range chicken in the undergrowth had brought greateconomic, social and ecological benefits. To explore the sustainability of it Investigation of free rangechicken in the undergrowth was carried out by way of sampling method in typical plots in Henglu town,Lin’an, Zhejiang Province. The objective of this study was to illuminate the species diversity index、richness index、 evenness index、 soil physical and chemical properties、 the woodlandmicroclimate、Chlorophyll Content、the crowd distribution、the number of soil microorganisms of shruband herb floor of the Carya cathayensis forest and Phyllostachys propinqua forest, respectively. Theresults of this study were as follows:1) The best available ecological capacity of this Ecological farm was40-50only/mu.2) The stability of the Carya cathayensis forest is better than the Phyllostachys propinquaforest and the area.3) The feeding Interference can decrease the Chlorophyll Content of the Phyllostachyspropinqua forest.4) The feeding Interference can decrease the biodiversity, the diversity index all appear thatthe nearer the distance of the sample to the chicken house, the lower the diversity index5) Chicken activity had influenced the soil physical and chemical properties, the available P、available K、hydrolyzable nitrogen and the total number of soil microorganisms near the barton allincrease, with increase of grazing intensity, soil available P contents deducted,while soil availableK content and pH value began to increase. Soil organic matter contents can also be raised bymoderately grazing.6) From the view of biomass、litter water-holding characteristics、the soil physical andchemical properties, the woodland microclimate, the results showed that it was more suitable forchicken in Carya cathayensis than in Phyllostachys praecox.