Influence of different managing targets on soil nutrient pools of Phyllostachy edulis forests in hilly region,central Hunan
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    Abstract:

    Based upon the case of the hilly region in central Hunan,soil nutrient pool contents,integration indexes and Pearson coefficients among nutrient elements were studied for three typical managing target patterns,which included shoot utilizing stands (Ⅰ),shoot and timber utilizing stands (Ⅱ) and timber utilizing (Ⅲ) of Phyllostachy edulis forests.It was found that soil nutrient pool contents decreased obviously in the profiles within 0~60 cm.In different patterns and soil layers,the contents of organic matter (OM),total nitrogen (TN),available nitrogen (AN),total phosphorus (TP),available phosphorus (AP),total potassium (TK) and available potassium (AK) were 18.88-40.24 g/kg,1.08-2.19 g/kg,60.00-200.00 mg/kg,0.36-0.52 g/kg,0.84-4.07 mg/kg,11.29-23.46 g/kg and 31.72-86.70 mg/kg,respectively.In type Ⅰ,the contents of OM,TN and AK were relatively high,and the contents of AN,TP and AP were higher in type Ⅱ,the contents of TK were higher in type Ⅲ.Soil nutrient pool integration indexes was the highest in type Ⅱ,followed by type Ⅰ and Ⅲ,with score of 3.908 1,3.522 8 and 3.265 0.For the hilly region in central Hunan,the contents of soil OM,TN and AN were plentiful and phosphorus and potassium elements were in short universally in P.edulis forests.The contents of soil OM were positively correlated with TN,AN,TP,AP and AK,and there also existed Pearson coefficients between TN and AN,TP and AP.

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漆良华,孟 勇,岳祥华,范少辉,艾文胜,刘广路,杜满义. Influence of different managing targets on soil nutrient pools of Phyllostachy edulis forests in hilly region, central Hunan[J]. Jorunal of Huazhong Agricultural University,2012,31(5):584-588.

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  • Received:September 05,2011
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