CAJ | 학술논문

作物实际产量与潜在产量间存在较大差距,地区间甚至同一地区不同田块间作物产量也存在显著差异,这种现象在世界范围内的农业生产中广泛存在.缩小该差距对于提高粮食产量,确保粮食安全具有重要意义.本文在阐述开展作物产量差研究重要性和必要性的基础上,从产量差的内涵、研究尺度的扩展及分析方法等方面介绍了目前国内外有关作物产量差的研究进展,并综述了作物生长模拟模型在产量差研究中的应用,最后分析了目前作物产量差研究中存在的问题和不足之处,并探讨了未来作物产量差研究的发展方向.
작물실제산량여잠재산량간존재교대차거,지구간심지동일지구불동전괴간작물산량야존재현저차이,저충현상재세계범위내적농업생산중엄범존재.축소해차거대우제고양식산량,학보양식안전구유중요의의.본문재천술개전작물산량차연구중요성화필요성적기출상,종산량차적내함、연구척도적확전급분석방법등방면개소료목전국내외유관작물산량차적연구진전,병종술료작물생장모의모형재산량차연구중적응용,최후분석료목전작물산량차연구중존재적문제화불족지처,병탐토료미래작물산량차연구적발전방향.
There exists a large gap between crop potential yield and actual yield for cultivated farmlands. Variation in crop yield from field to field is a common ubiquitous feature across agricultural landscapes. Closing yield gap plays an important role in increasing food production and ensuring food security. This study introduces the importance and necessity for closing yield gap and summarizes domestic and international research progress in yield gap analysis. The development and definition of yield gap, research method and scale, and data analysis method are documented. The application of crop growth model in yield gap research is also discussed. Finally, the main problems currently limiting yield gap analysis are advanced and research trend discussed.