浙江省马尾松（Ｐinus massniana）林凋落物量及土壤碳库的初步研究

Studies on Litterfall and Carbon Storage of Pinus massoniana Forest in Zhejiang Province

研究了浙江省马尾松（Ｐinus massniana)林凋落物量及土壤碳库。结果表明，马尾松林年均凋落量５．８３×１０^3kg/hm^2。凋落物中各组分比例为叶＞枝＞杂物＞树皮＞球果，其中枝叶占总凋落量的７７．２％；凋落高峰为秋、冬两季，占全年凋落量的７９．９％，马尾松林土壤有机Ｃ储量为１．６７×１０^5kg/hm^2。进一步估算出浙江省马尾松林凋落物理及土壤有机Ｃ储量分别为８．２９×１０^9、２．３７×１０^11kg。

Based on data of located observation in Zhejiang Province,the following aspects are studied.the amount,components,seasonal pattems of litter of Pinus massoniana forest.The results are as follows.The average anount of annual litter in P.massoniana forest is 5.38×10 3kg/hm 2.The litter amount of different organs of P.massoniana forest are in the sequence of leaf>branch>miscellang>bark>fruit.The leaves and branches account for 77.12% of annual total litter fall.The peak of the seasonal pattems of littering is autumn and winter,it accounts for 79.99% of annual total litter fall.The carbon storage ofthe P.massoniana forest is 1.67×10 5kg/hm 2.Thus the carbon storage and the amount of Litter of the P.massoniana forest in Zhejiang are 8.29×10 9、2.37×10 11 kg.