北方农牧交错带农牧系统养分流动特征及环境效应研究进展  

Research Progress on Nutrient Flow Characteristics and Environmental Effects on Crop⁃Livestock System of Farming⁃Pastoral Eco⁃tone in Northern China

作　　者：廖成松[1] 翁杰 LIAO Cheng-song;WENG Jie(Xilingol Vocational College,Xilinghot,Inner Mongolia 026000)

机构地区：[1]锡林郭勒职业学院,内蒙古锡林浩特026000

出　　处：《安徽农业科学》2023年第14期22-24,共3页Journal of Anhui Agricultural Sciences

基　　金：中央引导地方科技发展资金项目(2021ZY0002);中国科学院“西部青年”项目。

摘　　要：北方农牧交错带跨度大、范围广、农牧兼有,是研究北方农牧业最具代表性的区域。养分流动直接反应养分循环状况,是农业生态系统平衡的重要表征之一,研究农牧系统养分流动对于发展可持续农牧业,减少环境养分负荷等具有重要意义。总结了农牧系统氮、磷、钾3种主要养分流动特征及其环境效应,提出了农牧系统养分循环亟待深入研究的重要方向,以期为后续农牧系统养分循环的理论研究、提高养分利用率技术手段的研发以及环境政策措施的制定提供借鉴与参考。Farming⁃pastoral ecotone in northern China has a large span,a wide range,and a combination of agriculture and animal husband⁃ry,making it the most representative region for studying northern agriculture and animal husbandry.Nutrient flow directly reflects nutrient cycling status and is one of the important indicators of agricultural ecosystem balance.Studying nutrient flow in agricultural and pastoral systems is of great significance for the development of sustainable agriculture and animal husbandry,reducing environmental nutrient load,and so on.This article summarizes the flow characteristics and environmental effects of three main nutrients,nitrogen,phosphorus,and potassium,in the crop⁃livestock system.It proposes important directions for in⁃depth research on nutrient cycling in the crop⁃livestock system,with the aim of providing reference for subsequent theoretical research on nutrient cycling in the crop⁃livestock system,research and development of technical means to improve nutrient utilization efficiency,and formulation of environmental policies and measures.

关 键 词：北方农牧交错带 农牧系统 养分流动 环境效应 

分 类 号：S181[农业科学—农业基础科学]