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新疆农林复合系统种间相互作用研究

批准号31560376 学科分类耕作学 ( C130307 )
项目负责人李鲁华 负责人职称教授 依托单位石河子大学
资助金额41.00
万元
项目类别地区科学基金项目 研究期限2016 年 01 月 01 日 至
2019 年 12 月 31 日
中文主题词农林复合系统;种间根系分布;种间光合特性
英文主题词agroforestry system;interspecific root distribution;interspecific photosynthetic characteristic

摘要

中文摘要 农林复合系统是一种传统的土地利用模式,因其对环境资源的充分利用、较高的经济收益和稳产,已经越来越为人们所关注。本课题以典型的果棉间作多熟立体种植模式(枣树/棉花、核桃树/棉花)为研究对象,分别依托新疆石河子市莫索湾垦区(北疆)、和田地区农科所(南疆)果棉间作长期定位试验站,研究间作系统内的种间地下部根系相互作用和地上部光合特性。具体研究五、七、九年生枣树/棉花、三、五、七年生核桃树/棉花间作系统内的根系分布动态变化、根型构造和地上部对光照的竞争和补偿效应(大田),阐明果棉间作种间根系动态分布、种间根系互作之间的关系以及地上部种间光合特性,为制定合理的根系调控技术、优化新疆农林复合系统种植模式提供理论依据和生产实践指导。
英文摘要 Agroforestry system is a kind of traditional pattern of land use and received increasing interest because they offer potential advantages for resource utilization, higher economic returns to farmers and increased sustainability in crop production. This research take jujube tree/cotton system and walnut tree/cotton system as objects to study root interspecific interactions underground and photosynthetic characteristic aboveground of systems in two long term experimental stations, i.e., Mosuowan experimental area in north Xinjiang province and Hetian experimental area in south Xinjiang province, respectively. The field and laboratory test were used to measure the dynamic change of root, the structures of the roots and the competitive and compensation for lighting in the intercropping systems. The specific crops include 5, 7, 9-year-old jujube tree, 3, 5, 7-year-old walnut tree, cotton and wheat. The ultimate goal of the study is to clarify the root interspecific interactions of the tree/crop mixtures and the mechanism for the relationship. The research results will provide theoretical basis and meaningful instructions for making optimum technology of root adjustment and optimizing planting patterns for Xinjiang agroforestry system.
结题摘要

成果

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