scholarly journals The influence of agricultural landscape diversity on biological diversity

2007 ◽  
pp. 125-141 ◽  
Author(s):  
Lech Ryszkowski ◽  
Jerzy Karg
Keyword(s):  
Agricultural Landscape ◽  
Biological Diversity ◽  
Landscape Diversity

Exploring the agricultural landscape diversity-food security nexus: an analysis in two contrasted parklands of Central Senegal

2022 ◽  
Vol 196 ◽  
pp. 103312
Author(s):  
L. Leroux ◽  
N.F. Faye ◽  
C. Jahel ◽  
G.N. Falconnier ◽  
A.A. Diouf ◽  
...  
Keyword(s):  
Food Security ◽  
Agricultural Landscape ◽  
Landscape Diversity

scholarly journals Rolnictwo ekologiczne a właściwości gleby i jej różnorodność biologiczna

2012 ◽  
Vol 10 (1) ◽  
pp. 45-63
Author(s):  
Anna Augustyniuk-Kram
Keyword(s):  
Organic Farming ◽  
Agricultural Landscape ◽  
Biological Diversity ◽  
Natural Habitat ◽  
Farming Systems ◽  
Wild Plant ◽  
Conventional Farming ◽  
Ecological Farming ◽  
Positive Effect

This review deals with the influence of organic farming, as well as with the effects the conversion of conventional to ecological farming systems have had on the quality of soil and biodiversity. Organic farming is defined as a system in which crop and animal production must be balanced, and all means of production needed for plant and animal breeding are produced within the farm. Organic farming prohibits the use of pesticides and artificial fertilizers, therefore is widely perceived as being more environmentally friendly than conventional farming. Organic farming is also identified with the production of high-quality food, with the improvement of animal welfare, as well as associated with rural development. This type of farming aims to sustain the quality and fertility of the soil and to maintain key ecological soil functions. The presented overview shows that organic farming leads to higher soil quality and more biological activity in soil than conventional farming. A growing number of studies also show that organic farming can have a positive effect on ecosystems by increasing biological diversity and by a diversification of the agricultural landscape. This is to prevent the loss of the natural habitat of many wild plant and animal species.

Environmental suitability of a highly fragmented and heterogeneous landscape for forest bird species in south-eastern Brazil

2012 ◽  
Vol 39 (4) ◽  
pp. 316-324 ◽  
Author(s):  
KATIA MARIA PASCHOALETTO MICCHI DE BARROS FERRAZ ◽  
MARINEZ FERREIRA DE SIQUEIRA ◽  
EDUARDO ROBERTO ALEXANDRINO ◽  
DANIELA TOMASIO APOLINARIO DA LUZ ◽  
HILTON THADEU ZARATE DO COUTO
Keyword(s):  
Atlantic Forest ◽  
Agricultural Landscape ◽  
Bird Species ◽  
Landscape Diversity ◽  
Native Forest ◽  
Brazilian Atlantic Forest ◽  
Anthropogenic Landscapes ◽  
Forest Bird ◽  
Environmental Suitability ◽  
Heterogeneous Landscape

SUMMARYAssessment of the suitability of anthropogenic landscapes for wildlife species is crucial for setting priorities for biodiversity conservation. This study aimed to analyse the environmental suitability of a highly fragmented region of the Brazilian Atlantic Forest, one of the world's 25 recognized biodiversity hotspots, for forest bird species. Eight forest bird species were selected for the analyses, based on point counts (n = 122) conducted in April–September 2006 and January–March 2009. Six additional variables (landscape diversity, distance from forest and streams, aspect, elevation and slope) were modelled in Maxent for (1) actual and (2) simulated land cover, based on the forest expansion required by existing Brazilian forest legislation. Models were evaluated by bootstrap or jackknife methods and their performance was assessed by AUC, omission error, binomial probability or p value. All predictive models were statistically significant, with high AUC values and low omission errors. A small proportion of the actual landscape (24.41 ± 6.31%) was suitable for forest bird species. The simulated landscapes lead to an increase of c.30% in total suitable areas. In average, models predicted a small increase (23.69 ± 6.95%) in the area of suitable native forest for bird species. Being close to forest increased the environmental suitability of landscapes for all bird species; landscape diversity was also a significant factor for some species. In conclusion, this study demonstrates that species distribution modelling (SDM) successfully predicted bird distribution across a heterogeneous landscape at fine spatial resolution, as all models were biologically relevant and statistically significant. The use of landscape variables as predictors contributed significantly to the results, particularly for species distributions over small extents and at fine scales. This is the first study to evaluate the environmental suitability of the remaining Brazilian Atlantic Forest for bird species in an agricultural landscape, and provides important additional data for regional environmental planning.

scholarly journals The flora of the former Łęczyca iron ore dumps

2009 ◽  
Vol 13 (1) ◽  
pp. 31-36 ◽  
Author(s):  
Jan Siciński ◽  
Jarosław Sieradzki
Keyword(s):  
Iron Ore ◽  
Agricultural Landscape ◽  
Biological Diversity ◽  
The Sixties ◽  
The Subject ◽  
The Town

The flora of the former Łęczyca iron ore dumps Iron ore mines of the Łęczyca region started operating in the sixties and seventies of the 20th century and brought about considerable changes in the agricultural landscape of the town of Łęczyca and its vicinity. As a result of the ore exploitation, rock dumps as well as local depressions were created there. The subject of the present research was flora occurring in areas transformed by iron ore mining in the Łęczyca region. The flora is of spontaneous and anthropogenic (as a result of planting - reclamation) character. The results of the conducted research indicate that areas transformed by mining significantly increase their biological diversity.

scholarly journals Distribution of the Traditional Agricultural Landscape Types Reflecting Geological Substrate and Slope Processes in the Kysuce Region

2015 ◽  
Vol 34 (4) ◽  
pp. 339-355 ◽  
Author(s):  
Mária Barančoková ◽  
Peter Barančok
Keyword(s):  
Agricultural Landscape ◽  
Biological Diversity ◽  
Arable Land ◽  
Agricultural Practices ◽  
Agricultural Landscapes ◽  
Landscape Types ◽  
Sustainable Agricultural Practices ◽  
Geological Substrate

Abstract Traditional agricultural landscapes (TAL) are landscapes in which primarily traditional sustainable agricultural practices are currently carried out and where biological diversity is conserved thereby. The objective of this paper is to evaluate the extension of traditional landscape structures and their relationship to geological substrate and slope processes (landslides). The evaluation was concentrated on two types of TAL (extended to Kysuce region): TAL with dispersed settlements (subtype 1a and b) and TAL of arable-land, grasslands and pastures (subtype 4a and b). Localities with typical dispersed settlements of subtype 1a mostly occur on Zlin formation and cover 707.9 ha. On the deluvial formation, this type extends to 531.8 ha and on the Solaň formation, to 403.6 ha. The active landslides are mostly represented in the TAL of subtype 4a (cadastral areas of Čadca and Oščadnica villages), of subtype 4b (cadastral areas of Riečnica and Svrčinovec villages) and of subtype 1a (cadastral area of Svrčinovec village). The largest representation of potential landslides is on the subtype 4a, subtype 1a and subtype 4b.

scholarly journals Assessment of the European Common Agricultural Policy and landscape changes: an example from Slovenia

2018 ◽  
Vol 64 (No. 11) ◽  
pp. 489-498 ◽  
Author(s):  
Marko OGOREVC ◽  
Renata SLABE-ERKER
Keyword(s):  
Agricultural Policy ◽  
Common Agricultural Policy ◽  
Agricultural Landscape ◽  
Shannon Index ◽  
Agricultural Landscapes ◽  
Landscape Diversity ◽  
Spatial Lag Model ◽  
Lag Model ◽  
Direct Payments ◽  
Negative Impacts

The objective of this study was to determine whether and to what extent Common Agricultural Policy (CAP) measures actually succeed in preserving the diversity of agricultural landscapes. This paper assesses the effects of agricultural policy on changes in the diversity of agricultural landscapes in Slovenia. Diversity is measured by the Shannon index and the Simpson index, while the impacts were estimated using a spatial lag model. The results show that direct payments decrease landscape diversity by 2 index points per 1 000 EUR/ha, but agri-environmental payments for reducing negative impacts on the environment and those for nature conservation increase agricultural landscape diversity by 2.8 index points and 12.30 index points per 1 000 EUR/ha, respectively. Furthermore, we did not find any statistically significant effects of habitat protection payments on landscape diversity. Since direct payments are almost four times larger on average as agri-environmental payments, they preserve landscape diversity only to a limited extent.

Sign in / Sign up

Export Citation Format

Share Document