کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2413779 1552050 2015 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Isolated cork oak trees affect soil properties and biodiversity in a Mediterranean wooded grassland
ترجمه فارسی عنوان
درختان بلوط چوب پنبه جدا شده بر خواص خاک و تنوع زیستی در یک علفزار جنگل مدیترانه تاثیر می گذارد
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم زراعت و اصلاح نباتات
چکیده انگلیسی


• Topsoil C increased by +50% under tree canopy in a cork oak wooded grassland.
• Direct and indirect effects of trees influence plant and collembolan assemblages.
• Plant diversity decreases under tree canopy, but trees enhance the grassland richness.
• Collembolan diversity is enhanced by the peculiar conditions under the tree canopy.
• Some plant and collembolan species manifest positive or negative correlations.

Mediterranean wooded grasslands are multipurpose systems that support high plant and animal diversity levels and are habitats of European importance (i.e., 6310 – Dehesas with evergreen Quercus spp.). Moreover, these systems offer a number of agro-ecosystem services such as forage production, soil carbon sequestration, nutrient recycling and soil protection. The scattered trees enhance the ecological complexity of grassland influencing the soil properties, the herbaceous layer diversity and composition and the soil communities. Understanding how isolated trees influence the other components of the system is essential to comprehend their role supporting high levels of above and below ground biodiversity and ecosystem services.In the present study, we present a hypothetical framework of the effects of isolated trees on soil properties, plant and soil fauna assemblages, the latter here represented by the class Collembola. The floor litter and the associated input of organic matter to the soil was a key factor linking the components of the tree-soil-biodiversity system in a Mediterranean cork oak wooded grassland.Topsoil C increased by +50% under the tree canopy in comparison with the areas beyond the tree canopy. Plant diversity was lower under tree canopy, but contributed to enhance the total species richness of the grassland. Collembolan diversity was higher under the peculiar conditions beneath the tree canopy. Relationships between plant and collembolan species emerged.The findings of this study suggest that isolated trees have direct and indirect effects on soil properties, plant and collembolan assemblages, hence they can influence the ecological processes of wooded grasslands, with implications for food webs, nutrient cycling and productivity of the agro-ecosystem.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Agriculture, Ecosystems & Environment - Volume 202, 1 April 2015, Pages 203–216
نویسندگان
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