摘要
植物主要依赖于细根获取水分和养分,分配到地下部分细根的生物量占总生物量的比例很高且周转迅速,因此在某些森林生态系统中,细根周转对土壤有机质的贡献大于地上部分凋落物,细根分解是陆地生态系统 C 和养分的重要输入途径。但是.当前国内对细根分解的研究不够重视,在这方面的研究有待于加强。
Plants depend on fine roots for water and mineral uptake.Due to high annual input and fast turnover rate of fine root,fine root decomposition may contribute more to the organic matter decomposition than the aboveground litter fall in many forest ecosys- tem.Fine root decomposition is one of the major pathways of carbon and nutrients cyc- ling in terrestrial ecosystems.However,the importance of fine roots decomposition has not been stressed yet in China and fine roots researches are seldom conducted.
出处
《长江大学学报（自然科学版）》
CAS
2005年第8期76-78,7-8,共3页
Journal of Yangtze University(Natural Science Edition)
基金
国家自然科学基金重点资助项目(30130160)
关键词
细根
细根分解
凋落物
fine roots
fine root decomposition
litter
