Search research articles

关于 JoVE

概览领导团队博客 JoVE 帮助中心

作者

出版流程编辑委员会范围与政策同行评审常见问题投稿

图书馆员

用户评价订阅访问资源图书馆顾问委员会常见问题

研究

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments 存档

教育

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual 教师资源中心教师网站

使用条款与条件

相关概念视频

Sampling Plans

Sampling Plans

Sampling is a crucial step in analytical chemistry, allowing researchers to collect representative data from a large population. Common sampling methods include random, judgmental, systematic, stratified, and cluster sampling.
Random sampling is a method where each member of the population has an equal chance of being selected for the sample. It involves selecting individuals randomly, often using random number generators or lottery-type methods. For example, when analyzing the properties of a...

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序

Same author

Tropical Seed Trait Database: advancing seed functional ecology in the world's most biodiverse region.

The New phytologist·2026

Same author

Overestimated natural biological nitrogen fixation translates to an exaggerated CO<sub>2</sub> fertilization effect in Earth system models.

Proceedings of the National Academy of Sciences of the United States of America·2025

Same author

TropiRoot 1.0: Database of tropical root characteristics across environments.

Ecology·2025

Same author

Evaluating the combined effects of light and water availability on the early growth and physiology of Tamarindus indica: Implications for restoration.

American journal of botany·2025

Same author

Tropical root responses to global changes: A synthesis.

Global change biology·2024

Same author

Evolutionary history and root trait coordination predict nutrient strategy in tropical legume trees.

The New phytologist·2024

Search research articles

相关实验视频

Updated: May 23, 2025

Two-Dimensional Visualization and Quantification of Labile, Inorganic Plant Nutrients and Contaminants in Soil

Two-Dimensional Visualization and Quantification of Labile, Inorganic Plant Nutrients and Contaminants in Soil

Published on: September 1, 2020

细根功能和土壤特性之间的强大规模依赖关系,通过空间合采样揭示了这些关系.

Caroline Dallstream¹, Lola Milder², Jennifer S Powers³

¹Department of Biology, McGill University, Montreal, QC, H3A 1B1, Canada.

The New phytologist

|April 30, 2025

概括

细根特征和土壤特性在空间尺度上有很大差异. 了解这些关系对于预测植物对热带森林环境变化的反应至关重要.

关键词:

树冠状菌根的菌根.的含量是多少? 的含量是多少?酸酶是一种酸酶.植物土的相互作用.根生理学根生理学根的特征根的特征根的特征树木树木的树木树木的树木.热带地区热带地区

更多相关视频

Sampling Soils in a Heterogeneous Research Plot

Sampling Soils in a Heterogeneous Research Plot

Published on: January 7, 2019

Methods of Soil Resampling to Monitor Changes in the Chemical Concentrations of Forest Soils

Methods of Soil Resampling to Monitor Changes in the Chemical Concentrations of Forest Soils

Published on: November 25, 2016

相关实验视频

Last Updated: May 23, 2025

Two-Dimensional Visualization and Quantification of Labile, Inorganic Plant Nutrients and Contaminants in Soil

Two-Dimensional Visualization and Quantification of Labile, Inorganic Plant Nutrients and Contaminants in Soil

Published on: September 1, 2020

Sampling Soils in a Heterogeneous Research Plot

Sampling Soils in a Heterogeneous Research Plot

Published on: January 7, 2019

Methods of Soil Resampling to Monitor Changes in the Chemical Concentrations of Forest Soils

Methods of Soil Resampling to Monitor Changes in the Chemical Concentrations of Forest Soils

Published on: November 25, 2016

科学领域:

生态生态学生态生态学
植物生物学植物生物学
土壤科学土壤科学

背景情况:

细根特征的变化通常发生在细空间尺度上,但很少与土壤 () 属性有关.
了解根特征和土壤状况之间的相互作用对于森林生态系统的运行至关重要.

研究的目的:

研究细根特征和土壤特性变化的空间尺度.
为了确定影响Handroanthus ochraceus中细根功能的性驱动因素.
探索各种细根特征之间的关系.

主要方法:

嵌套采样方案在多个空间尺度 (树木内部,树木之间和跨站点) 中使用.
细根样本分析了生理学,共生,形态学,化学和建筑特征.
对配对土壤的物理和化学特性进行了量化.

主要成果:

细根特征和土壤特性都表现出显著的变化,通常在细空间尺度上最明显.
根灌木菌根殖民和基单酶活性与粗规模土壤异质性 (散密度,,酸盐) 相关并受到影响.
根直径和特定根长度,呼吸和度之间的权衡是由微小的氨异质驱动的.

结论:

对土壤属性的内属细根特征反应可以同时在多个空间尺度上表现出来.
精确的根和土壤变异的空间匹配对于检测这些反应至关重要.
酸在影响细根特征方面比和起了更重要的作用.