使用功能结构模型来设计葡萄树的建筑意识形态,以应对极端的热量和水压力:一个多标准分析
Mathilde Millan1, Rami Albasha1,2, Stathis Delivorias1
1UMR LEPSE, Université Montpellier, INRAE, Institut Agro-Montpellier, Montpellier, France.
Journal of experimental botany
|April 11, 2025
概括
葡萄树的架构可以进行修改,以提高对热量和干旱的适应性. 叶子面积和方向等特定特征可以降低叶子温度,提高气候变化下的生存能力.
科学领域:
- 植物生理学和遗传学
- 农业中的气候变化适应
- 功能性结构装置建模功能性结构装置建模
背景情况:
- 极端的热量和水应激会对葡萄藤 (Vitis vinifera L.) 造成生理损伤,例如叶子烧伤.
- 开发耐热品种对于保持葡萄藤生产率至关重要.
- 葡萄树结构对叶子温度和碳/水关系的影响需要进一步研究.
研究的目的:
- 确定优化净碳同化 (An) 和用水效率 (WUE) 的葡萄树建筑理念.
- 在热量和水应激条件下将叶子温度 (Tleaf) 降至最低.
- 利用功能结构植物建模来探索建筑特征的影响.
主要方法:
- 根据不同的叶面积 (LA),叶子升高角度 (R) 和内节长度 (IL) 生成了1000个3D葡萄树模型.
- 在炎热/极热和轻度/严重缺水条件下模拟植物反应.
- 使用功能结构植物模型分析了建筑特征对An,WUE和Tleaf的影响.
主要成果:
- 建筑特征显著影响了An,WUE和Tleaf.
- 模拟显示,在单个模型中,叶子温度变化高达10°C.
- 发现大LA,中度IL和向下的叶面取向将最热的叶面的温度降到最低,对An和WUE产生最小的负面影响.
结论:
- 针对葡萄树架构的有针对性的修改可以提高对气候变化的适应力.
- 通过优化建筑特征来确定干燥和炎热条件的意识形态.
- 功能结构植物建模是设计适应气候变化的作物品种的宝贵工具.
相关概念视频
Adaptations that Reduce Water Loss
25.0K
Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.
25.0K
Design of Prismatic Beams for Bending
188
The design of prismatic beams, structural elements with a uniform cross-section, focuses on ensuring safety and structural integrity under load. The design process begins by determining the allowable stress, either from material properties tables, or by dividing the material's ultimate strength by a safety factor. This safety factor is essential for accommodating uncertainties, and varies depending on the material—timber, steel, or concrete—with each having unique strength and...
188
Prismatic Beams: Problem Solving
99
In the design of a supported timber beam subjected to a distributed load, both the beam's physical dimensions and the timber's characteristics, such as its grade and species, are critical. These factors determine the allowable stress values, which are crucial for calculating the necessary beam depth to ensure structural integrity and safety.
The design begins with analyzing the beam as a free body to identify moments and force balances, thereby determining support reactions. Next, the...
The design begins with analyzing the beam as a free body to identify moments and force balances, thereby determining support reactions. Next, the...
99
Yield Criteria for Ductile Materials under Plane Stress
126
In designing structural elements and machine parts using ductile materials, it is crucial to ensure that these components withstand applied stresses without yielding. Yielding is initially determined through a tensile test, which evaluates the material's response to uniaxial stress. However, tensile stress is insufficient when components face biaxial or plane stress conditions This condition requires advanced criteria to predict failure.
The Maximum Shearing Stress Criterion, also known as...
The Maximum Shearing Stress Criterion, also known as...
126
Design Consideration
165
Designing a structure involves a series of considerations, primarily the material's ultimate strength, calculated through tests that measure changes under increased force until the material reaches its breaking point or limit. The ultimate load, where the material breaks, is divided by its original cross-sectional area, resulting in the ultimate normal stress or strength. The ultimate shearing stress is another significant factor taken into account.
The factor of safety is another key...
The factor of safety is another key...
165
Design Example: Analyzing Capacity Contours for Flood Risk Assessment
31
Flood risk assessment involves careful planning and analysis to ensure the safety of communities near water retention structures. Capacity contours are a vital tool in this process, as they illustrate the potential spread of water at specific levels in a given area. In the context of building a bund across a small valley, these contours play a critical role in evaluating the safety of nearby residential areas.In this example, the bund is intended to store stormwater in the valley. The engineers...
31


