首页 -> 文献共享 -> 外文文献-> 正文

Vegetation community and soil characteristics of abandoned agricultural land and pine plantation in the Qinling Mountains, China

作者：Georg Dechert, Edzo Veldkamp, Iswandi Anas   出版商：ELSEVIER   出版日期：2010 年 1 月
Abstract:In order to determine the changes in the characteristics of the vegetation and soil following agricultural abandonment and compare the effects of different restoration approaches on ecosystem recovery, we studied the vegetation community and soil characteristics (nutrients, bulk density, water content and pH) of Pinus tabulaeformis plantations and abandoned croplands in different successional stages in the Foping National Nature Reserve, located in the Qinling Mountains, northwest China. The results indi-cated that natural vegetation and habitat could be restored via natural regeneration. These spontaneous restoration forests were characterized by high diversity, high soil fertility and rich unique species. The soil organic matter, total carbon, total nitrogen, available potassium,community cover, depth of litter, depth of humus and soil water content increased significantly with years after abandonment, while the total potassium, total phosphorus, available phosphorus, soil pH did not seem to change significantly with abandonment time. The soil mineral nitrogen (NH4-N+NO3-N) tended to increase during the first50 years after abandonment and then decreased. The pine plantations tended to show a low level of bio-diversity in tree and herb layer, but the shrub layer (including sapling)composition and diversity were similar to secondary forests. Although the pine plantation showed lower soil fertility, they did not seem to result in the habitat-degradation.
查看全文 本地浏览
相关数据
暂无相关数据！
相关文章
暂无相关文献！
●  上一篇： Analysis of land-use change system using the species competition concept     ●  下一篇： 竞奏共鸣下的 “ 对话 ” ——— 从 《 地图 》 解读谭盾音乐    
声明：本站文献资源来源于网络，仅供学习交流使用，不得以任何形式用于商业用途，请于浏览后24小时内删除。如有疑问欢迎与我们联系，感谢您的支持。