相关实验视频

Updated: Jul 20, 2025

Physical, Chemical and Biological Characterization of Six Biochars Produced for the Remediation of Contaminated Sites

Physical, Chemical and Biological Characterization of Six Biochars Produced for the Remediation of Contaminated Sites

Published on: November 28, 2014

努力在多样化的景观中进行一致的生物评估:使用土地使用问题来分类参考和扰乱地点以指数开发

Tao Tang¹, R Jan Stevenson²

¹State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China.

The Science of the total environment

|July 29, 2023

概括

使用土地使用标准开发多度指数 (MMIs) 提高了跨不同景观的生态评估一致性. 调整自然变化的指标可以提高全国和生态区域内的表现.

科学领域:

生态生态学生态生态学
环境科学环境科学
生物监测生物监测

背景情况:

由于自然变化,生态评估在大型,多样化的景观中面临着一致性挑战.
大型景观通常被划分为生态区域,评估依赖于生态区域特定的指数.
为广泛的地理区域开发一致和有效的评估工具至关重要.

研究的目的:

开发和比较使用藻数据进行生态评估的多度指数 (MMIs).
根据土地使用与选址物理化学标准对MMI的有效性进行评估.
为了确定国家规模的MMIs是否可以与生态区域特定的MMIs相提并论.

主要方法:

利用来自美国国家河流和溪流评估 (2008-2009) 的盆地藻数据.
使用参考,中度扰乱和高度扰乱的地点开发了国家和生态区域特定的MMIs.
根据物理化学条件或流域土地使用 (农业和城市百分比) 选择的地点.
调整了指标,以考虑条件的自然变化.

主要成果:

土地使用标准有效地确定了具有较低流域干扰的参考区域.
基于土地使用标准的MMI在全国范围内表现优于基于物理化学条件的MMI.
当跨生态区域应用时,全国范围的土地使用MMIs的性能与生态区域特定的MMIs相比或更好.

结论:

使用土地使用标准和适应自然变化的开发MMI可以改善大,多样化的景观的评估一致性.
这种方法可以保持或提高MMI性能,而不会牺牲准确性.
调查结果支持对国家生态评估采取更统一的方法.

关键词:

岩藻类 (Benthic diatoms) 是一种岩藻类.生物状况生物状况一致性一致性一致性人类干扰的人类干扰.多度指数指数多度指数指数参考条件参考条件参考条件参考条件

更多相关视频

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

Linking Predation Risk, Herbivore Physiological Stress and Microbial Decomposition of Plant Litter

Linking Predation Risk, Herbivore Physiological Stress and Microbial Decomposition of Plant Litter

Published on: March 12, 2013

相关概念视频

Ecological Disturbance

Ecological Disturbance

An ecological disturbance is a temporary disruption in the environment resulting from abiotic, biotic, or anthropogenic factors, causing a pronounced change in an ecosystem. The impact of an ecological disturbance, which can depend on its intensity, frequency, and spatial distribution, plays a significant role in shaping the species diversity within the ecosystem.

Habitat Fragmentation

Habitat Fragmentation

Habitat fragmentation describes the division of a more extensive, continuous habitat into smaller, discontinuous areas. Human activities such as land conversion, as well as slower geological processes leading to changes in the physical environment, are the two leading causes of habitat fragmentation. The fragmentation process typically follows the same steps: perforation, dissection, fragmentation, shrinkage, and attrition.

Bioremediation

Bioremediation

Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.