Fig.3From: Effects of sulfuric, nitric, and mixed acid rain on the decomposition of fine root litter in Southern ChinaPercentages of mass remaining and annual decomposition rate (k value) from decomposing fine roots in a C. lanceolata plantation under acid rain stress. A Sulfuric acid rain; B sulfuric and nitric acid rain mixture; C nitric acid rain; D k value, calculated using the first-order exponential decay model (Xt/Xo = e−kt). Other details as in Fig. 1Back to article page