نتایج جستجو برای: use change has strong effects on ecosystem properties

تعداد نتایج: 10675689  

2015
Helen Moor Kristoffer Hylander Jon Norberg

Wetlands provide multiple ecosystem services, the sustainable use of which requires knowledge of the underlying ecological mechanisms. Functional traits, particularly the community-weighted mean trait (CWMT), provide a strong link between species communities and ecosystem functioning. We here combine species distribution modeling and plant functional traits to estimate the direction of change o...

Journal: :Annals of botany 2007
Eric Garnier Sandra Lavorel Pauline Ansquer Helena Castro Pablo Cruz Jiri Dolezal Ove Eriksson Claire Fortunel Helena Freitas Carly Golodets Karl Grigulis Claire Jouany Elena Kazakou Jaime Kigel Michael Kleyer Veiko Lehsten Jan Leps Tonia Meier Robin Pakeman Maria Papadimitriou Vasilios P Papanastasis Helen Quested Fabien Quétier Matt Robson Catherine Roumet Graciela Rusch Christina Skarpe Marcelo Sternberg Jean-Pierre Theau Aurélie Thébault Denis Vile Maria P Zarovali

BACKGROUND AND AIMS A standardized methodology to assess the impacts of land-use changes on vegetation and ecosystem functioning is presented. It assumes that species traits are central to these impacts, and is designed to be applicable in different historical, climatic contexts and local settings. Preliminary results are presented to show its applicability. METHODS Eleven sites, representati...

This study investigated the effects of solvents’ polarities on the geometry and electronic properties of 2-(2-nitrovinyl) furan, (NVF). The investigation was carried via theoretical approach, using an ab-initio [Hartree Fock (HF/6-31G*)] and Density Functional Theory (DFT/B3LYP/6-31G*).The properties investigated are optimized structures, energy gaps (ELUMO – EHOMO) and as...

Journal: :Ambio 2006
Frederick J Wrona Terry D Prowse James D Reist John E Hobbie Lucie M J Lévesque Warwick F Vincent

Climate change is projected to cause significant alterations to aquatic biogeochemical processes, (including carbon dynamics), aquatic food web structure, dynamics and biodiversity, primary and secondary production; and, affect the range, distribution and habitat quality/quantity of aquatic mammals and waterfowl. Projected enhanced permafrost thawing is very likely to increase nutrient, sedimen...

2008
Gregory P Asner

Conversion of land to grow crops, raise animals, obtain timber, and build cities is one of the foundations of human civilization. While land use provides these essential ecosystem goods, it alters a range of other ecosystem functions, such as the provisioning of freshwater, regulation of climate and biogeochemical cycles, and maintenance of soil fertility. It also alters habitat for biological ...

Journal: :Land 2023

Climate change (CC) and land use (LUC) have been determined as two major environmental variables that broadly affect hydrological ecosystem services (HESs). However, the relative cumulative effects of CC LUC on HES at large spatial scales where there is great heterogeneity still unclear enough to support formulation update decision-making ecological management policies. This study has quantifie...

The main purpose of this paper is to explain the factors affecting the change of service land uses in the city of Shiraz and identify its reasons. For this purpose, the second-order confirmatory factor analysis technique has been used as one of the structural equation modeling techniques to determine the severity of the effect of the four factors on land use change, through which a contributing...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2017
Jacqueline Oehri Bernhard Schmid Gabriela Schaepman-Strub Pascal A Niklaus

Experiments have shown positive biodiversity-ecosystem functioning (BEF) relationships in small plots with model communities established from species pools typically comprising few dozen species. Whether patterns found can be extrapolated to complex, nonexperimental, real-world landscapes that provide ecosystem services to humans remains unclear. Here, we combine species inventories from a larg...

2009
Richard R. Schneider Andreas Hamann Dan Farr Xianli Wang Stan Boutin

We propose a new and relatively simple modification to extend the utility of bioclimatic envelope models for land-use planning and adaptation under climate change. In our approach, the trajectory of vegetation change is set by a bioclimatic envelope model, but the rate of transition is determined by a disturbance model. We used this new approach to explore potential changes in the distribution ...

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