Chen Guoqi, Huang Zeyue, Xue Jiahao, Zhu Feng, Chen Yang, Wu Yunfei
Jiangsu Key Laboratory of Crop Genetics and Physiology/Jiangsu Key Laboratory of Crop Cultivation and Physiology, Research Institute of Rice Industrial Engineering Technology, Agricultural College of Yangzhou University, Yangzhou 225009, China.
Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China.
Biology (Basel). 2025 Jul 27;14(8):943. doi: 10.3390/biology14080943.
Weeds represent increasingly troublesome threats to modern wheat production. Jiangsu Province, China, is one of the largest wheat-planting areas, characterized by a high level of agricultural mechanization, in the country. In 2024, we surveyed weed communities of 924 wheat lands from 308 sites in Jiangsu and compared them with historical data surveyed in 1999-2000 in this province. A total of 156 weed species belonging to 103 genera and 39 families were recorded. Compositae and Poaceae showed the highest species richness, with 26 and 23 species, respectively. Poaceae weeds accounted for 54.3% of the overall weeds in dominance values. showed the highest proportion of the overall weeds in dominance values (19.2%). Compared with the historical data, weed diversity increased by 33.3% in species, and by 62.5% in families; grassy weeds such as , , and became more dominant, while several low-growing grassy weeds became less dominant. The dominance of broadleaf weeds, such as spp., spp., and spp., decreased greatly, and a clear trend of weed homogenization among different areas and types of wheat lands was observed. This is the first investigation of weed community succession against the background of agricultural modernization in China.
杂草对现代小麦生产构成的威胁日益棘手。中国江苏省是全国最大的小麦种植区之一，其农业机械化水平很高。2024年，我们对江苏省308个地点的924块小麦田的杂草群落进行了调查，并将其与该省1999 - 2000年调查的历史数据进行了比较。共记录了156种杂草，分属于103属39科。菊科和禾本科的物种丰富度最高，分别有26种和23种。禾本科杂草的优势度值占杂草总数的54.3%。在优势度值方面占杂草总数的比例最高（19.2%）。与历史数据相比，杂草物种多样性增加了33.3%，科的多样性增加了62.5%；诸如、和等禾本科杂草变得更加占优势，而几种低矮的禾本科杂草变得不那么占优势。阔叶杂草如 spp.、 spp.和 spp.的优势度大幅下降，并且在不同地区和类型的小麦田之间观察到明显的杂草同质化趋势。这是中国首次在农业现代化背景下对杂草群落演替进行的调查。
