Mao Zhi-Gang, Wang Guo-Xiang, Liu Jin-E, Ren Li-Juan
Jiangsu Provincial Key Laboratory of Environmental Change and Ecological Construction, Nanjing Normal University, Nanjing 210046, China.
Ying Yong Sheng Tai Xue Bao. 2009 Feb;20(2):293-7.
Soil samples under different salt marsh vegetations in Yancheng coastal wetland were collected, and their organic carbon (C) and total nitrogen (N) were determined, aimed to analyze the influence of salt marsh vegetation on the spatial distribution of soil carbon and nitrogen. The results showed that the organic C and total N contents in top soils varied from 1.71 to 7.92 g x kg(-1) and from 0.17 to 0.36 g x kg(-1), respectively, and there were significant differences among different vegetation zones. The top soils organic C and total N contents in vegetation zones were higher than those in mudflat without vegetation. In the soil profiles in vegetation zones, organic C and total N contents had a trend of decreasing with depth, but changed little below the depth of 15 cm. Soil organic C was significantly positively correlated with soil total N and C/N, but soil total N had no significant correlation with soil C/N.
采集了盐城沿海湿地不同盐沼植被下的土壤样本，测定了其有机碳（C）和全氮（N）含量，旨在分析盐沼植被对土壤碳氮空间分布的影响。结果表明，表层土壤中有机碳和全氮含量分别在1.71至7.92 g·kg⁻¹和0.17至0.36 g·kg⁻¹之间，不同植被带之间存在显著差异。植被带表层土壤的有机碳和全氮含量高于无植被的泥滩。在植被带的土壤剖面中，有机碳和全氮含量随深度呈下降趋势，但在15厘米深度以下变化不大。土壤有机碳与土壤全氮和碳氮比呈显著正相关，但土壤全氮与土壤碳氮比无显著相关性。
