二十年来中国六个地区玉米病虫害的动态趋势

IF 2.5 2区 农林科学 Q1 AGRONOMY
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引用次数: 0

摘要

玉米生产在其整个生长周期中始终面临着玉米病虫害(MDPs)的威胁,给粮食安全带来了巨大风险。然而,由于缺乏连续的观测数据,在区域范围内了解玉米病虫害发生的时空动态一直是个难题。本研究对中国六个主要玉米种植区(华北春播区(1-NC)、黄淮海平原夏播区(2-HHP)、西南山地玉米区(3-SM)、南方丘陵玉米区(4-SH)、西北灌溉玉米区(5-NI)和青藏高原玉米区(6-QTP))从 1999 年到 2018 年 20 年的综合数据集进行了整理。在 20 年间,1-NC 和 2-HHP 地区的 MDP 平均发生范围超过了其他地区。此外,在同一时期,1-NC、2-HHP、3-SM、4-SH 和 5-NI 的 MDPs 出现率也有大幅上升。同时,2-HHP 地区的 MDPs 平均发生强度超过了其他地区。值得注意的是,玉米叶枯病和亚洲玉米螟成为 1-NC、2-HHP、3-SM、4-SH 和 5-NI 的主要病虫害。一项双变量趋势分析突出表明,MDP 发生范围和强度的物种数量明显增加,包括 1-NC 的双斑叶甲和 2-HHP 的棉铃虫。这项广泛而长期的分析为制定全国范围的 MDP 防治综合战略奠定了基础,有助于在六个种植区制定有针对性的预测和防治措施。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Dynamic trends in maize diseases and pests across six regions in China over two decades

Dynamic trends in maize diseases and pests across six regions in China over two decades

Maize production faces persistent threats from maize diseases and pests (MDPs) throughout its growth cycle, posing substantial risks to food security. However, understanding the spatio-temporal dynamics of MDPs occurrences on a regional scale has remained elusive due to a lack of continuous observation data. This study curated a comprehensive dataset spanning two decades, from 1999 to 2018, across six key maize planting regions in China [Spring sown area in Northern China (1-NC), Summer sown region in Huang-Huai-Hai Plain (2-HHP), Southwest Mountain Maize Region (3-SM), Southern Hilly Maize Region (4-SH), Northwest Irrigated Maize Region (5-NI), and Maize Region in Qinghai-Tibet Plateau (6-QTP)]. The average extent of MDP occurrence in 1-NC and 2-HHP exceeded that in other regions over the two-decade period. Furthermore, the occurrence of MDPs exhibited a substantial increase in 1-NC, 2-HHP, 3-SM, 4-SH, and 5-NI over the same period. Meanwhile, the average occurrence intensity of MDPs in 2-HHP surpassed that in other regions. Notably, maize leaf blight and the Asian maize borer emerged as predominant diseases and pests in 1-NC, 2-HHP, 3-SM, 4-SH, and 5-NI. A bivariate trend analyses highlighted a notable increase in the species count for both the extent and intensity of MDP occurrences, including double-spotted leaf beetle in 1-NC, and cotton bollworm in 2-HHP. This extensive, long-term analysis offers a foundation for devising comprehensive strategies for MDP control on a national scale, enabling the formulation of tailored forecasting and control measures across six planting regions.

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来源期刊
Crop Protection
Crop Protection 农林科学-农艺学
CiteScore
6.10
自引率
3.60%
发文量
200
审稿时长
29 days
期刊介绍: The Editors of Crop Protection especially welcome papers describing an interdisciplinary approach showing how different control strategies can be integrated into practical pest management programs, covering high and low input agricultural systems worldwide. Crop Protection particularly emphasizes the practical aspects of control in the field and for protected crops, and includes work which may lead in the near future to more effective control. The journal does not duplicate the many existing excellent biological science journals, which deal mainly with the more fundamental aspects of plant pathology, applied zoology and weed science. Crop Protection covers all practical aspects of pest, disease and weed control, including the following topics: -Abiotic damage- Agronomic control methods- Assessment of pest and disease damage- Molecular methods for the detection and assessment of pests and diseases- Biological control- Biorational pesticides- Control of animal pests of world crops- Control of diseases of crop plants caused by microorganisms- Control of weeds and integrated management- Economic considerations- Effects of plant growth regulators- Environmental benefits of reduced pesticide use- Environmental effects of pesticides- Epidemiology of pests and diseases in relation to control- GM Crops, and genetic engineering applications- Importance and control of postharvest crop losses- Integrated control- Interrelationships and compatibility among different control strategies- Invasive species as they relate to implications for crop protection- Pesticide application methods- Pest management- Phytobiomes for pest and disease control- Resistance management- Sampling and monitoring schemes for diseases, nematodes, pests and weeds.
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