摘要
养分限制因子的快速、准确诊断是开展森林养分限制研究的重要基础。N和P是森林生态系统最普遍和最主要的限制性养分因子。当前树木生长N、P限制的主要诊断方法可分为施肥试验、叶片营养诊断和根系诊断3大类。本文对各种诊断方法及其研究进展进行了概述;指出了N、P限制诊断方法研究的发展趋势;强调了养分元素之间的相互作用和植物自身的生理生态适应性在养分限制诊断中的作用。
To quickly and accurately diagnose nutrient limitation factors is indispensable for the study of nutrient limitation in forest ecosystem. Nitrogen （N） and phosphorus （P） are the two popular and major limitation nutrients in forest ecosystem. At present, the main diagnosis methods of N and P limitation to tree growth are fertilization experiment, foliar nutrition diagnosis, and root diagnosis. This paper reviewed the research progress on these methods, discussed the development trend of related researches, and emphasized the significances of the interactions between nutrient elements and the eco-physiological adaptability of plants to nutrient deficiency in the diagnosis of nutrient limitation.
出处
《生态学杂志》
CAS
CSCD
北大核心
2009年第1期122-128,共7页
Chinese Journal of Ecology
基金
国家自然科学基金项目(30800887)
国家科技支撑计划项目(2006BAD03A0502
2006BAD26B0201-1)
关键词
氮磷限制诊断
叶片营养诊断
根系诊断
diagnosis of N and P limitation
foliar nutrient diagnosis
root diagnosis.
