摘要
高寒草甸生态系统的脆弱性及其植被、土壤特性决定了其磷素循环有其自身的特点及研究的必要性。从土壤磷素的分级研究、土壤磷素储量、磷在土壤中的循环及转化等几个方面综述了我国高寒草甸土壤磷素研究现状。重点回顾了高寒草甸土壤磷素空间分布及其主要影响因子,包括环境因子、植被及人类活动等。土壤磷素有其空间分布规律,随水平位置和土壤深度的变化发生相应变化,指出了目前在高寒草甸生态系统土壤磷素研究中存在的一些问题以及未来研究的热点,以期综合已有的经验和成果,促进今后土壤磷素的研究。
Phosphorus cycling in alpine meadow ecosystem, where vegetation and soil have its own characteristics, are very different from other grasslands. The paper is on the development of researches about soil phosphorus fractions, the content of soil phosphorus, the phosphorus cycle and transformation in soil. The distribution and main causes of soil phosphorus, including the factors of environment, vegetation and human activities, are reviewed in Alpine Meadow. Spatial distribution of soil phosphorus is obvious. Soil phosphorus changes along with the horizontal position and soil depth. Finally, the existing problems in soil phosphorus study and its hotpots in future are discussed. The purpose is to sum up the results of the study and accelerate the study of soil phosphorus.
出处
《草业与畜牧》
2009年第3期1-5,共5页
Pruataculture & Animal Husbandry
基金
四川省教育厅重点项目"川西北高寒草甸土壤CO2释放研究"(2006A070)
关键词
高寒草甸
土壤磷
空间分布
影响因子
Alpine meadow
Soil phosphorus
Spatial distribution
Influential factors
作者简介
谭鑫（1983－），女，四川省成都市人，硕士研究生，主要从事生态资源开发与保护等方面的研究。
