摘要
水分和肥料是植物生长的必需因子,水肥管理是人工林培育的核心问题,水肥耦合能够促进植物生长发育、提高资源利用效率。进行人工林水肥耦合研究,可为制定水分和养分调控措施提供理论与实践依据,探索结合区域生境特征的节水、节肥模型,构建结构稳定和功能高效的生态系统。文中综述人工林水肥耦合效应的研究现状,分析水肥耦合对植株功能性状的影响,探讨土壤肥力与植物养分利用对水肥耦合的响应,以及人工林产品的产量和品质与水肥耦合的关系。我国水肥耦合的相关研究还需要不断推进和深入,为集成基于水肥耦合的人工林可持续经营技术体系,未来需要加强以下3个方面的研究:一是结合植物水肥需求规律深入研究,二是深化水肥耦合对人工林产品质量提升的影响研究,三是揭示水肥耦合对人工林生长衰退的影响机理与驱动机制。
Water and fertilizer are the essential factors for the growth of plants. Their management is the core issue of the cultivation of planted forest. The coupling of water and fertilizer can promote the plant growth and improve the resource utilization efficiency. The research on water-fertilizer coupling for planted forest can provide a theoretical and practical basis for formulating water and nutrient regulation measures,so it is important to explore the water-saving and fertilizer-saving models combined with regional habitat characteristics,and construct an ecological system with stable structure and efficient functions. This paper reviews the research on the effect of water-fertilizer coupling in planted forest,analyzes the significant effect of water-fertilizer coupling on the functional traits of plants,and discusses the response of soil fertility and plant nutrient utilization to water-fertilizer coupling and the relationship among yield and quality of products and water-fertilizer coupling in planted forest. The relevant researches on water-fertilizer coupling in China need to be continuously promoted and deepened. In order to integrate the sustainable forest management technology system of planted forest based on the coupling of water and fertilizer,the future research in this field should be focused on the following three aspects: 1) the in-depth study of the law of water and fertilizer needs of plants;2) the study of the effect of water-fertilizer coupling on the improvement of planted forest product quality;3) the influence mechanism and driving mechanism of water-fertilizer coupling on the growth decline of planted forest.
作者
喻阳华
王颖
钟欣平
Yu Yanghua;Wang Ying;Zhong Xinping(School of Karst Science, Guizhou Normal University, Guiyang 550001 , China;State Engineering Technology Institute for Karst Desertification Control, Guizhou Normal University, Guiyang 550001 , China;School of Geography and Environmental Science, Guizhou Normal University, Guiyang 550025 , China)
出处
《世界林业研究》
CSCD
北大核心
2019年第2期35-39,共5页
World Forestry Research
基金
国家重点研发计划课题"喀斯特高原峡谷石漠化综合治理与生态产业规模经营技术与示范"(2016YFC0502603)
贵州省科技计划项目"干热河谷石漠化区花椒水肥耦合自给关键共性技术研究与示范"(黔科合支撑[2016]2610号)
关键词
人工林
水肥耦合
功能性状
林产品质量
生长衰退
planted forest
water-fertilizer coupling
functional trait
product quality
growth decline
