五个物种 40/25/20/10/5 → H′ = 1.4150，J = 0.8792 100 个个体的样本，占比 0.40、0.25、0.20、0.10、0.05，得 H′ = 1.4150（ln 底），H′max = ln5 = 1.6094——Pielou 均匀度 J = 0.8792，属中等均匀群落。{"result":"H′ = 1.4150 (base ln) from S=5 species, N=100 individuals. H′max = 1.6094, Pielou evenness J = 0.8792. Moderately even community.","metadata":{"input":{"richness":5,"totalN":100,"base":"ln"},"result":{"richness":5,"totalN":100,"proportions":[0.4,0.25,0.2,0.1,0.05],"shannonH":1.415,"hmax":1.6094,"evenness":0.8792,"base":"ln","interpretation":"Moderately even community","method":"H′ = −Σ pᵢ·ln pᵢ; J = H′/ln(S)"}}}
两个物种 60/40 → H′ = 0.6730，J = 0.971 60:40 的两物种群落得 H′ = 0.6730，H′max = ln2 = 0.6931——低丰富度限制了 H′，但均匀度 J = 0.971 很高：多样性受限于丰富度而非优势度。{"result":"H′ = 0.6730 (base ln) from S=2 species, N=100 individuals. H′max = 0.6931, Pielou evenness J = 0.971. Highly even community — abundances nearly equal.","metadata":{"input":{"richness":2,"totalN":100,"base":"ln"},"result":{"richness":2,"totalN":100,"proportions":[0.6,0.4],"shannonH":0.673,"hmax":0.6931,"evenness":0.971,"base":"ln","interpretation":"Highly even community — abundances nearly equal","method":"H′ = −Σ pᵢ·ln pᵢ; J = H′/ln(S)"}}}