果树与作物的界面上的光分布以及山坡高地农业林业产量的影响
Huu Thuong Pham1,2, Nguyen La2, Ingrid Öborn1
1Department of Crop Production Ecology, Swedish University of Agricultural Sciences (SLU), Sweden.
Heliyon
|October 21, 2024
概括
斜坡在果树作物农业林业中显著影响光的分布,下坡地区的光线较少,作物产量较低. 在斜坡上优化光线使用是提高农林生产率的关键.
科学领域:
- 农业林业系统 农业林业系统
- 农业学是一种农业学.
- 园艺园艺 园艺园艺
- 土壤科学 土壤科学
背景情况:
- 农林业提高了农场的生产力和土壤的保护,但面临着来自树木作物竞争的挑战.
- 在农林系统中对光分布的斜率效应尚不清楚,这限制了在不平坦的地形上进行优化.
- 现有的关于农林业轻度竞争的研究主要集中在平坦土地上,忽视了地形影响.
研究的目的:
- 调查斜率方面如何影响果树作物农业林业系统中的光分布.
- 评估坡度对玉米和咖啡作物在农林环境中的表现的影响.
- 为了确定相对于树干的作物位置和光拦截/在斜坡土地上的产量之间的关系.
主要方法:
- 利用Hemiview和SunScan工具来测量五年历史的果树作物农林实验中的光分布,该实验是在面向西南西的斜坡上进行的.
- 将实验区分为9个相对于树木排列的区域,区域1-4向上坡和6-9向下坡.
- 在农业林业中比较光线分布和作物生长/收益率,使用单独玉米和单独咖啡系统.
主要成果:
- 在农业林业中,事件光线比单一作物系统更低,光线到达作物的数量显著减少,这些作物位于树的下坡.
- 光的可用性随着距离树列的距离而增加,但下坡位置对光和产量产生了更强大的负面影响.
- 大约40-50%的总发光到达了土壤表面,这表明了地下部分的潜力.
结论:
- 斜坡在果树作物农业林业中显著影响光线分布和作物产量,而下坡地区更受不利影响.
- 了解斜率介导的光动力学对于在不同地形上设计高效的农林系统至关重要.
- 在整个生长季节对作物特定光线需求的进一步研究可以完善农林系统设计,以提高生产率.
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