Long-term natural succession improves nitrogen storage capacity of soil on the Loess Plateau, China | |
Deng, L (Deng, Lei)[ 1 ]; Wang, KB (Wang, Kai-bo)[ 2 ]; Shangguan, ZP (Shangguan, Zhou-ping)[ 1 ] | |
2014 | |
发表期刊 | Soil Research |
卷号 | 52期号:3页码:262-270 |
文章类型 | 期刊论文 |
摘要 | Land-use change resulting from natural succession enhances the nitrogen (N) accumulation capacity of terrestrial ecosystems. To explore those factors that foster changes in soil N storage under evolving conditions of vegetation succession, a study on N storage at differing stages along a 150-year chronosequence was conducted in the Ziwuling Forest Region in the central part of the Loess Plateau, China. A principal finding was the rapid increase in N storage in the 0-60cm soil layer, which achieves a stable value after the shrub community stage (∼50-60 years), leading to the overall long-term (∼150 years) accumulation of soil stored N in the post-abandonment secondary forest. Soil N accumulated mainly in the pioneer stage and showed a significant increase before the shrub community stage (P<0.05). The N storage in the 0-60cm soil layer changed from 5.8 to 8.4Mgha-1 during the transition from abandoned farmland (∼3-5 years) to climax community (Quercus liaotungensis Koidz forest) (∼150 years). The N storage values were higher in the upper (<20cm) than the deeper soil layers (>20cm). In the topsoil (0-20cm), N storage values showed a markedly positive correlation with soil organic carbon (SOC), total soil N and fine roots. In the deeper soil layers (20-40 and 40-60cm) there was a correlation only with TN. Soil bulk density, soil water content and soil pH were not the determining factors behind N storage values in the topsoil (0-20cm), although they did show negative, positive and negative correlations, respectively. In addition, they showed no consistent correlations in the lower soil layer (<20cm). The results suggest that changes to N storage values were the result of the accumulation of SOC, total N and primary productivity during the process of forest succession, and this capacity is positively related to post-abandonment forest succession on the Loess Plateau, China. |
关键词 | China Natural Succession Nitrogen Storage Ziwuling Forest Region |
DOI | 10.1071/SR12377 |
收录类别 | SCI ; EI |
语种 | 英语 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ieecas.cn/handle/361006/9700 |
专题 | 生态环境研究室 |
通讯作者 | Shangguan, ZP (Shangguan, Zhou-ping)[ 1 ] |
作者单位 | 1.State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau,Northwest A&F University, Yangling, Shaanxi 712100, P.R. China; 2.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment,Chinese Academy of Sciences, Xi’an 710075, P.R. China |
推荐引用方式 GB/T 7714 | Deng, L ,Wang, KB ,Shangguan, ZP . Long-term natural succession improves nitrogen storage capacity of soil on the Loess Plateau, China[J]. Soil Research,2014,52(3):262-270. |
APA | Deng, L ,Wang, KB ,&Shangguan, ZP .(2014).Long-term natural succession improves nitrogen storage capacity of soil on the Loess Plateau, China.Soil Research,52(3),262-270. |
MLA | Deng, L ,et al."Long-term natural succession improves nitrogen storage capacity of soil on the Loess Plateau, China".Soil Research 52.3(2014):262-270. |
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