相关实验视频

Updated: Jul 2, 2025

Laboratory and Field Protocol for Estimating Sheet Erosion Rates from Dendrogeomorphology

Laboratory and Field Protocol for Estimating Sheet Erosion Rates from Dendrogeomorphology

Published on: January 7, 2019

放牧对地中海森林 (西班牙中东部) 土壤特性的影响

David Candel-Pérez¹, Manuel Esteban Lucas-Borja², Pedro Antonio Plaza-Álvarez²

¹iuFOR, EiFAB, Campus Duques de Soria, Universidad de Valladolid, E-42004 Soria, Spain.

Journal of environmental management

|February 21, 2024

概括

牧场严重影响地中海森林土壤,减少了水含量和植物生物多样性. 然而,它也降低了土壤的排水能力,增加了脱酶活性,为土地管理提供了潜在的指标.

科学领域:

土壤科学土壤科学
生态生态学生态生态学
林业林业林业林业林业

背景情况:

放牧是一种传统的土地管理实践,已知对土壤和植被的影响.
关于在伊比利亚地中海森林中放牧的影响的研究,特别是关于土壤酶活动和呼吸的研究是有限的.
了解这些影响对于该地区的可持续森林管理至关重要.

研究的目的:

研究放牧对土壤物理化学和生物特性的影响.
评估放牧对地中海森林植被丰富性的影响.
确定牧场对土地管理影响的潜在指标.

主要方法:

在西班牙卡斯蒂利亚 - 拉曼查的一片地中海森林中,放牧和未放牧场地的比较.
分析土壤的物理化学特性 (含水量,液压导电性,pH,反水性).
测量土壤的生物特性 (脱酶活性,基本呼吸) 和植被物种丰富度.

主要成果:

放牧显著降低了土壤的水含量 (-53%) 和可用水 (-59%),但消除了排水能力.
土壤pH稍微增加 (+18%),脱酶活性显著增加 (+100%),基本呼吸减少 (-24%).
植物物种丰富度下降了34%,表明生物多样性丧失.

结论:

畜牧放牧显著改变了地中海森林的关键土壤和植物特性,影响了土壤的整体质量.
特定的土壤变量 (例如脱酶活性,呼吸,含水量) 显示了被放牧和未被放牧地区之间的显著差异.
这些变量可以作为评估牧场影响的指标,并制定有效的土地管理策略以减轻退化.

关键词:

放牧效应在放牧效应.半干旱的牧场半干旱的牧场土壤的基本呼吸系统土壤的液压特性土壤的酶性活动土壤的水力特性

更多相关视频

A CO2 Concentration Gradient Facility for Testing CO2 Enrichment and Soil Effects on Grassland Ecosystem Function

A CO2 Concentration Gradient Facility for Testing CO2 Enrichment and Soil Effects on Grassland Ecosystem Function

Published on: November 21, 2015

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

The Roles of Bacteria and Fungi in Plant Nutrition

The Roles of Bacteria and Fungi in Plant Nutrition

Plants have the impressive ability to create their own food through photosynthesis. However, plants often require assistance from organisms in the soil to acquire the nutrients they need to function correctly. Both bacteria and fungi have evolved symbiotic relationships with plants that help the species to thrive in a wide variety of environments.

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.

The Soil Ecosystem

The Soil Ecosystem

Plants obtain inorganic minerals and water from the soil, which acts as a natural medium for land plants. The composition and quality of soil depend not only on the chemical constituents but also on the presence of living organisms. In general, soils contain three major components:

Ecological Succession

Ecological Succession

Ecological succession is influenced by the processes of facilitation, inhibition, and toleration. Facilitation occurs when early successional species create more favorable ecological conditions for subsequent species, such as enhanced nutrient, water, or light availability. In contrast, inhibition happens when early successional species create unfavorable ecological conditions for potential successive species, such as limiting resource availability. In some cases, later successional species...