Farm Riparian Land Use and Management: Driving Factors and Tensions Between Technical and Ecological Functions

2005 ◽  
Vol 36 (5) ◽  
pp. 640-653 ◽  
Author(s):  
Claudine Thenail ◽  
Jacques Baudry
2016 ◽  
Vol 21 (1Supl) ◽  
pp. 229-239 ◽  
Author(s):  
Dolors Armenteras ◽  
Orlando Vargas

<p>El paisaje, entendido como un mosaico heterogéneo, es una unidad donde interactúan ecosistemas, especies y el hombre con el uso que este último hace del mismo. El paisaje es el resultado de complejas interacciones, no solo producto de dinámicas naturales sino del balance de la oferta y la demanda de la sociedad ante la preferencia por los recursos que este ofrece. Este equilibrio causa impactos ecológicos sobre los ecosistemas y la diversidad de organismos que ocupan los paisajes. El uso y manejo del territorio aumenta la heterogeneidad espacial, en muchos casos a través de la pérdida y  fragmentación de hábitat. Estos procesos traen alteraciones sobre el funcionamiento de los ecosistemas, afectando funciones y procesos ecológicos que dependen del flujo de energía y materiales a través de paisajes. El objetivo de este trabajo es avanzar en la comprensión de los orígenes de la heterogeneidad resultante de estas dinámicas, para mitigar sus efectos y entender cómo planificar y manejar los paisajes. Restaurar,  rehabilitar y recuperar ecosistemas son estrategias para asegurar la conservación, sostenibilidad y en algunos casos la recuperación de servicios ecosistémicos. En ocasiones las escalas de paisaje y aquellas a las cuales se realizan actividades de restauración se encuentran alejadas en la práctica. Este artículo presenta una revisión de conceptos claves en ecología del paisaje y de restauración, acercando escalas intrínsecas de los fenómenos y de toma de decisiones para el desarrollo de escenarios de manejo y restauración en Colombia. </p><p> </p><p>Abstract</p><p>The landscape, understood as a heterogeneous mosaic is a unit where ecosystems, species and man’s land use interact. It is the result of complex interactions, not only as a result of natural dynamics but also the balance created between the supply and the demand of society driven by the preference for certain resources. This balance causes ecological impacts both on ecosystems and the diversity of organisms that occupy the landscape. Land use and management tend to increase the spatial heterogeneity in many<br />cases through landscape processes such as the habitat loss and fragmentation. These processes bring alterations in the functioning<br />of ecosystems, affecting the ecological functions and those processes that depend on the flow of energy and materials through landscapes. The objective of this paper is to advance in the understanding of the origins of such heterogeneity in order to mitigate its negative effects and to better plan and manage landscapes. All restore, rehabilitate and ecosystems recovery, are strategies toensure the conservation, sustainability, and in some cases recovery of ecosystem services. Often landscape scales and those to whichrestoration activities are carried away are very distant in practice. This article presents a reflection carried out within the frameworkof the Chair Mutis 2015, it presents an overview of the key concepts in landscape ecology and restoration and an attempt to bridgeintrinsic and decision making scales to advance in the development of restoration scenarios in Colombia starting from the landscape scale but integrating local knowledge and actions.</p>


2021 ◽  
pp. 205301962110075
Author(s):  
Ilan Stavi ◽  
Joana Roque de Pinho ◽  
Anastasia K Paschalidou ◽  
Susana B Adamo ◽  
Kathleen Galvin ◽  
...  

During the last decades, pastoralist, and agropastoralist populations of the world’s drylands have become exceedingly vulnerable to regional and global changes. Specifically, exacerbated stressors imposed on these populations have adversely affected their food security status, causing humanitarian emergencies and catastrophes. Of these stressors, climate variability and change, land-use and management practices, and dynamics of human demography are of a special importance. These factors affect all four pillars of food security, namely, food availability, access to food, food utilization, and food stability. The objective of this study was to critically review relevant literature to assess the complex web of interrelations and feedbacks that affect these factors. The increasing pressures on the world’s drylands necessitate a comprehensive analysis to advise policy makers regarding the complexity and linkages among factors, and to improve global action. The acquired insights may be the basis for alleviating food insecurity of vulnerable dryland populations.


Author(s):  
Temesgen Mulualem ◽  
Enyew Adgo ◽  
Derege Tsegaye Meshesha ◽  
Atsushi Tsunekawa ◽  
Nigussie Haregeweyn ◽  
...  

2020 ◽  
Author(s):  
Kindiye Ebabu ◽  
Atsushi Tsunekawa ◽  
Nigussie Haregeweyn ◽  
Enyew Adgo ◽  
Derege Meshesha ◽  
...  

2016 ◽  
Vol 11 (34) ◽  
pp. 3217-3226 ◽  
Author(s):  
Beatriz F. da Costa Angela ◽  
Francisco Araujo-Junior Cezar ◽  
Henrique Caramori Paulo ◽  
Fumiko Ubukata Yada Inês ◽  
de Conti Medina Cristiane

2015 ◽  
pp. 16-25
Author(s):  
V. I. Kiriushin

The objectives relating to the optimization of the environment conservation involve the determination of biotope sensibility, valuation and forecasting of the landscape sustainable development and excessive anthropogenic loads, assessment of ecological risks and possible adverse consequences, analysis of conflicts, choice of methods for protection and development of the territory, determination of proportions between the agricultural lands and priority trends in land use, compromise decision-making and elaboration of methods to bring in correspondence the interests of land owners. These tasks are solved on the basis of landscape functional analysis. The major ecological functions are the following: bioecological (biotopic and biocenotic, bioproduced, bioenergetic, biogeochemical, concentrated, oxidation-reduced, destructed, activated-inhibited, sanitary); atmospheric (gaseous, heat exchanged, hydroatmospheric); lithospheric (relief-forming, lithological); hydrological and hydrogeological ones. Based upon the identification and assessment of ecological functions of landscapes the social-economic functions are determined to meet the requirements of the human society.


2021 ◽  
Vol 14 (4) ◽  
pp. 2131-2148
Author(s):  
Leandro Redin Vestena ◽  
Alessandro Kominecki

Solid and liquid mixtures in river courses intensify in areas of river confluence, conditioned mainly by the angular opening of the junction. Knowledge of hydrosedimentological dynamics in bedrock junctions with different angular openings is essential for understanding morphological adjustment at confluences and for supporting actions for the preservation and conservation of river ecosystems. For this reason, this article presents the results of a hydrogeomorphologic study on a river confluence with an obtuse junction angle (>100º), in a plateau bedrock river, in the Serra Geral Formation. The research evaluated a fluvial segment upstream and downstream of the Pedras River and in the Pombas River tributary, in Guarapuava, Paraná, through observations and measurements of morphological and hydraulic characteristics, width, talweg depth, bed declivity and bankfull flow. Morphological adjustment in obtuse confluences is peculiar in that the fluvial junction angle conditions specific flow, erosion, sediment transport and deposition dynamics, mainly resulting from its association with the geological nature of the river bed and types of land use and management upstream of the confluence.


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