三江流域与岷江上游生态区数量分类及可能生产力的研究

Study on numerical classification and possible productivity of ecological zones in Three-river watershed and upper stream of Min River.

对三江流域及岷江上游内 73个县市进行生态区数量分类划分出 5个生态区 ,并根据各生态区之间水热条件相似性与差异性提出适宜的造林树种。用Miami模型计算的TsPt和TsPn反映了研究区林木可能生产力的差异 ,且用其比值还可揭示各地水热平衡状况。

Counties in Three-river watershed and upper stream of M in River are classified into 5 ecological zones by adopting numerical classifica tion approach of ecological zone,and the possible tree species for each zone are suggested according the similarity and differences of water and heat conditions among zones.The TsPt and TsPn calculated from Miami Model reflect the different i ation of possible productivities of forest stand in study area,and reveal the co nditions of water and head balance in each zone by using their ratio.