scholarly journals Reprint: Land Use and Management—The Australian Context

Author(s):  
Rob Lesslie ◽  
Jodie Mewett

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 ◽  
...  


2021 ◽  
Vol 322 ◽  
pp. 107639
Author(s):  
Xiaoqian Niu ◽  
Chenggong Liu ◽  
Xiaoxu Jia ◽  
Juntao Zhu


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


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.



Author(s):  
Alana Cristina Cunha Bernardes ◽  
Osmann Cid Conde Oliveira ◽  
Raimunda Alves Silva ◽  
Patrícia Maia Correia Albuquerque ◽  
José Manuel Macário Rebêlo ◽  
...  


2021 ◽  
Author(s):  
Alexander Pardy

Freshwater eutrophication typically driven by non-point source phosphorus pollution is one of the worlds’ most prevalent and vexing environmental problems with the Laurentian Great Lakes on the Canada – United States border. During 1975 – 1977, the Pollution from Land Use Activities Reference Group examined eleven agricultural watersheds in order to investigate the impacts of land use activities on surface water quality. This study examined how agricultural land use and management has transformed in two watersheds, Nissouri Creek and Big Creek. The goal of this study was to quantify the phosphorus mass balance change within the watersheds. During 2015 – 2019 land use and management practices survey data was collected. Results of this study showed Nissouri Creek is now depleting -2.19 kilograms of phosphorus per hectare of agricultural land, while Big Creek is still accumulating 4.77 kilograms of phosphorus per hectare of agricultural land. This study can guide efforts to limit the long-term losses of phosphorus in the Laurentian Great Lakes and elsewhere.



2004 ◽  
Vol 154 (1-4) ◽  
pp. 271-293 ◽  
Author(s):  
V. Chaplot ◽  
A. Saleh ◽  
D. B. Jaynes ◽  
J. Arnold


Sign in / Sign up

Export Citation Format

Share Document