长期施肥对中国农田土壤溶解性有机碳氮含量影响的整合分析
李亚林1,张旭博2(
),任凤玲1,孙楠1(),徐梦2,徐明岗1
),任凤玲1,孙楠1(),徐梦2,徐明岗1
A Meta-Analysis of Long-Term Fertilization Impact on Soil Dissolved Organic Carbon and Nitrogen Across Chinese Cropland
YaLin LI1,XuBo ZHANG2(),FengLing REN1,Nan SUN1(),Meng XU2,MingGang XU1
),FengLing REN1,Nan SUN1(),Meng XU2,MingGang XU1
图2. 不同利用方式、熟制和土壤pH下施化肥和有机肥对DOC含量增加量的影响
点和误差线分别代表增加的百分数及其 95%的置信区间,如果 95%的置信区间没有跨越零线表示处理与对照存在显著差异;括号内的数值代表样本数。下同
Fig. 2. Percent change of DOC content in response to mineral fertilizer and manure application compared to no fertilizer under different use types, cropping systems and soil pH
Dots with error bars denote the percent change and 95% CI, respectively. The 95% CI that do not overlap zero line means significant difference between treatment and control. Numbers are the pairs of comparisons. The same as below
