林地施肥与水肥效益

概述了国内外林地施肥的现状 ,简要论述了氮肥利用效率和水分利用效率在农林业生产中的意义。同时 ,阐述了水肥耦合的研究状况 ,并说明了水肥耦合理论应用于林业生产中以改善黄土高原因水肥不协调而形成大面积低效林的重要意义

This paper summarizes the status of fertilizing of wood land at home and abroad and introduces the concept and meaning of water use efficiency and nitrogen use efficiency. And it states the situation of research on coupling of water and fertilizer which can be applied to forest production in order to improve the large area forest with low efficiency because of the inconsistency of water and fertilizer on Loess Plateau.