地下水深度对地下水补充和东北中国平原大豆生长动态的影响
Zhen-Chuang Zhu1, Shi-Jun Sun1, Miao-Miao Zhu2
1College of Water Conservancy, Shenyang Agricultural University, Shenyang 110866, China.
Ying yong sheng tai xue bao = The journal of applied ecology
|September 11, 2023
概括
最佳的地下水深度 (1米) 通过改善水的供应和营养物质的转移,显著提高了大豆的生长和产量. 较深的地下水位 (例如4米) 仍然可以在适当的灌下支持高产量,证明大豆.
科学领域:
- 农业科学 农业科学
- 农业学是一种农业学.
- 水文学的水文学
背景情况:
- 地下水的深度是影响作物用水供应和农业生产力的关键因素.
- 了解地下水动态与作物生理学之间的关系对于可持续农业至关重要.
- 大豆 (Glycine max) 的生长和产量对水资源管理策略非常敏感.
研究的目的:
- 研究不同地下水深度对地下水补充速度和大豆生长动态的影响.
- 分析地下水深度,灌要求和大豆产量之间的关系.
- 确定最佳的地下水深度,以最大限度地提高大豆的生产率和资源利用效率.
主要方法:
- 实地实验采用地下水模拟系统,使用四种不同的地下水深度处理方法 (1米,2米,3米,4米).
- 监测地下水补充量,灌量和大豆生长指数 (植物高度,叶面积指数,干物积累).
- 应用物流回归模型来模拟大豆生长动态和产量组件的统计分析.
主要成果:
- 随着地下水深度的增加,地下水的补充量显著下降;1米深的处理显示了最高的补充量.
- 1米深的地下水处理最大限度地提高了大豆生长指数和产量,需要最小的灌.
- 大豆产量,豆数,谷粒数和100粒重量按照D1>D4>D2>D3的顺序进行,其中D1的产量最高.
结论:
- 充分的地下水补充,如在1米深度实现的,优化大豆生长,干物分布和产量.
- 即使在地下水深 (4米) 的情况下,如果提供足够的灌,也可以实现大豆的高产量.
- 地下水深度是大豆用水效率和整体作物表现的关键决定因素.
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