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气候变暖和干旱对海地区大豆生长和发展的影响

Qi Li¹, Dekyi Droma¹, Xipeng Sun¹

¹School of Applied Meteorology, Nanjing University of Information Science & Technology, Nanjing, China.

Open life sciences

|October 6, 2023

概括

气候变化,包括气候变暖和干旱,对中国的大豆生产产生了重大影响. 这些压力缩短了生长期,并减少了关键的生长指标,如叶面积指数和干物质积累.

科学领域:

农业科学农业科学
气候科学气候科学
农业学是一种农业学.

背景情况:

全球变暖导致频繁的自然灾害,如干旱和降雨模式的改变,威胁到粮食安全.
大豆是中国重要的石油作物,面临着日益增加的气候相关风险,影响其生长和产量.
了解气候压力影响对于确保稳定的大豆生产至关重要.

研究的目的:

研究高温和干旱压力对大豆生长和产量的影响.
分析气候压力因素对主要大豆生长参数的影响.
确定易受气候变化影响的关键生长阶段.

主要方法:

利用当地的气象,土壤和大豆生长数据.
采用世界粮食研究模型 (WFSM) 作物模型进行分析.
研究重点在中国黑龙江省海市.

主要成果:

变暖压力缩短了大豆生长时间,减少了叶面积指数 (LAI),减少了干物积累.
干旱压力同样影响了生长期,LAI和干物质积累.
大豆从开花到种子填充阶段的生长高度敏感于环境因素,而结果阶段受到热量和干旱的影响最大.

结论:

高温和干旱严重影响大豆的生长和产量,特别是在开花到种子填充阶段.
气候变化对中国大豆生产构成重大威胁.
缓解和适应战略是必要的,以保护大豆作物生产免受气候变化的影响.

关键词:

这是一个WOFOST模型.干旱干旱干旱干旱输出输出输出输出输出大豆变暖的变暖

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