海量图书期刊资源，随时随地畅享阅读乐趣
Foliar and Fungal${}^{15}text{N}$:${}^{14}text{N}$Ratios Reflect Development of Mycorrhizae and Nitrogen Supply during Primary Succession: Testing Analytical ModelsErik A. Hobbie, Ari Jumpponen and Jim Trappe · Oecologia · 2005