Research Of Effect Of Upside Broad-leaved Forest On The Moisture Of Phyllostachys Heterocycla Var. Pubescens Forests

This paper have chosen three types of Phyllostachys heterocycla var.pubescens forests that with broad-leaved forest on its upside and one type of pure stand of Phyllostachys heterocycla var.pubescens forests as comparison.We have mainly studentied the function relation between four moisture factors including field moisture capacity and some independent variables,the main conclusions are as follows:1.The mean field moisture capacity of Phyllostachys heterocycla vat.pubescens forests of type A,B,C is higher than type D of Phyllostachys heterocycla var.pubescens forests.2.The soil water content of Phyllostachys heterocycla var.pubescens forests of type A,B,C is higher than type D of Phyllostachys heterocycla vat.pubescens forests when vertical distance of Phyllostachys keterocycla var.pubescens forests of type A,B,C are between 0 and 70 meter,0 and 50 meter,0 and 50 meter.3.At any distance,the water content of bamboo rhizome of Phyllostachys heterocycla var.pubescens forests of type A,B,C is higher than pure stand of Phyllostachys heterocycla var.pubescens forests.4.The mean water content of rhizome root of type A,B,C is bigger than type D when vertical distance scope of Phyllostachys heterocycla var.pubescens of type A,B,C is 0 up to 70 meters,0 up to 70 meters,0 up to 25 meters.5.The field moisture capacity,soil water content and water content of rhizome root of Phyllostachys heterocycla var.pubescens forests are all getting bigger with the increment of mixed proportion.The water content of bamboo rhizome also increase gradually with the increment of mixed proportion in upslope position,but decrease gradually at first,then increase gradually with the increment of mixed proportion in mesoslope position and downslope position.6.Including broad-leaved forest and Phyllostachys heterocycla var.pubescens forest,the ability of conserving water of type A is the best,the second is type B,the third is type C,type D is the lowest.7.Mean chest height diameter of Phyllostachys heterocycla var.pubescens forest with broad-leaved forest on its upside has obvious tendency of big,small,big from upslope position to mesoslope position to downslope position,but the Mean chest height diameter of pure stand Phyllostachys heterocycla var.pubescens forest increase gradually from upslope position to downslope position.8.The mean soil organic substance content of type A is the biggest,type B is the second,type C is the third,type D is the worst.9.Mean rhizome internode length and rhizome diameter of type A is the biggest, type B is the second,type C is the third,type D is the worst.