scholarly journals Physical and hydraulic properties of a Latosol influenced by land use and management changes

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
2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Elena Velado-Alonso ◽  
Ignacio Morales-Castilla ◽  
Antonio Gómez-Sal

AbstractNative livestock breeds, i.e. those autochthonous to a specific region, are locally adapted domesticated animals that conserve genetic resources, guaranty food security and provide agroecosystem services. Native breeds are largely threatened worldwide by agricultural intensification and rural areas abandonment processes related to recent changes in production schemes and planning. Yet, our gap of knowledge regarding livestock breed-environment relationships may prevent the design of successful conservation measures. In this work, we analyse the links between livestock diversity -i.e. richness of native breeds- and a selection of environmental factors that express at broad scales, with a temporal perspective. We compare native breeds distributional patterns before and after the agricultural intensification, in the context of land-use change in mainland Spain. Our results confirm the existence of strong associations between the distribution of native livestock breeds and environmental factors. These links, however, weaken for contemporary distributions. In fact, changes in breed distribution reflect a shift towards more productive environments. Finally, we found that the areas having higher breed richness are undergoing land abandonment processes. Succeeding in the conservation of threatened native breeds will require going beyond merely genetic and production-oriented views. Ecological and sociocultural perspectives should also be accounted for as global change processes are determinant for livestock agrobiodiversity.


Documentary sources reveal that various land-use and management changes in the catchments of six Scottish lakes during the past 200 years cannot be related to the acidification of specific lakes nor can acidification be related to any general ‘ land-use5 hypothesis. At five of the sites these conclusions are supported by pollen-derived reconstruction of catchment vegetation. In Norway, documentary evidence fails to support a ‘land-use’ hypothesis of acidification as grazing intensity has actually increased in the area where waters are most strongly acidified. It is considered that the failure to attribute acidification to catchment processes provides further evidence for an explanation in terms of acid precipitation.


2015 ◽  
Vol 7 (1) ◽  
Author(s):  
Ágota Horel ◽  
Eszter Tóth ◽  
Györgyi Gelybó ◽  
Ilona Kása ◽  
Zsófia Bakacsi ◽  
...  

AbstractSoil hydraulic properties are among the most important parameters that determine soil quality and its capability to serve the ecosystem. Land use can significantly influence soil properties, including its hydraulic conditions; however, additional factors, such as changes in climate (temperature and precipitation), can further influence the land use effects on soil hydraulic properties. In order to develop possible adaptation measures and mitigate any negative effects of land use and climatic changes, it is important to study the impact of land use and changes in land use on soil hydraulic properties. In this paper, we summarize recent studies examining the effect of land use/land cover and the associated changes in soil hydraulic properties, mainly focusing on agricultural scenarios of cultivated croplands and different tillage systems.


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 ◽  
...  

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