西南喀斯特石漠化环境适生植物构树细根、根际土壤化学计量特征
胡琪娟1,3, 盛茂银1,2,*(
), 殷婕1,3, 白义鑫1,3
), 殷婕1,3, 白义鑫1,3
Stoichiometric characteristics of fine roots and rhizosphere soil of Broussonetia papyrifera adapted to the karst rocky desertification environment in southwest China
HU Qi-Juan1,3, SHENG Mao-Yin1,2,*(), YIN Jie1,3, BAI Yi-Xin1,3
), YIN Jie1,3, BAI Yi-Xin1,3
图2. 不同等级石漠化环境构树根际土壤C、N、P、K、Ca、Mg含量及C、N、P比值(平均值+标准偏差)。横坐标的1、2、3、4、5分别代表无、潜在、轻度、中度、强度等级石漠化。不同小写字母表示不同等级石漠化环境下根际土壤的养分含量及化学计量比差异显著(p < 0.05)。
Fig. 2. Changes in C, N, P, K, Ca, Mg contents and C, N, P ratios of Broussonetia papyrifera rhizosphere soil with the degree of rocky desertification (mean + SD). 1, 2, 3, 4 and 5 in the abscissa axis represent nil, potential, slight, moderate and severe rocky desertification respectively. Different lowercase letters denote significant difference in nutrient contents and stoichiometric characteristics of rhizosphere soil among different degree of rocky desertification environment at p = 0.05 level.
