Landscape responses to a century of land use along the northern Patagonian forest-steppe transition

Plant Ecology ◽  
2011 ◽  
Vol 213 (2) ◽  
pp. 259-272 ◽  
Author(s):  
Juan H. Gowda ◽  
T. Kitzberger ◽  
A. C. Premoli
2021 ◽  
Vol 759 ◽  
pp. 143525
Author(s):  
Fengqi Cui ◽  
Bojie Wang ◽  
Qin Zhang ◽  
Haiping Tang ◽  
Philippe De Maeyer ◽  
...  

Mammalia ◽  
2011 ◽  
Vol 75 (3) ◽  
Author(s):  
María Victoria Lantschner ◽  
Verónica Rusch ◽  
John P. Hayes

2015 ◽  
Vol 353 ◽  
pp. 77-86 ◽  
Author(s):  
Gonzalo David Sottile ◽  
Pablo Ezequiel Meretta ◽  
Marcela Sandra Tonello ◽  
María Martha Bianchi ◽  
María Virginia Mancini

Author(s):  
Fedir Kiptach ◽  
Iryna Koynova

The large-scale landscape maps necessity in developing projects and proposals for agriculture, forestry land-use and erosion protection were justified. Natural conditions of land-use in Nova Syniava community in Stara Syniava district in Khmelnytskyi region were described and analyses of land structure were made. Accordingly, land structure is characterized by ecologically destabilizing lands, including arable lands, lands that were withdrawn from agriculture production and forestry (outbuildings, houses, roads, open-casts, exterior use lands) are prevailing. They cover 80,6 % (in particular, arable lands – 71,8 %) of total community lands. And, vice versa, ecologically stabilizing lands (gardens, pastures, grasslands, shrubs, forest belts, forests, swamps, water covered lands) cover a small percentage – 19,4 of total research area. Therefore, erosive soils cover a significant percentage – 51,3 % of total area. Soil erosion caused decreasing of soil fertility and yields of agriculture. The average weighted losses of humus in arable horizon of soils (0–30 cm) compared with full-profile standard analogues are 0,5–0,6 %. First step of developing sustainable ecological landscape systems were justified by using a principle of land resource restoration and strengthening of their self-regulation through increasing the area of ecologically stabilized lands by low productivity lands and by their location with taking into consideration a complex morphological structure of landscape systems. Landscape systems of research area were classified by genesis and type of their economic use. Arable lands should cover no more than 52,4 % of the total community area. In particular, 16,1 % is recommended to use for field grain-steam tilled crop rotations and cultivating all agriculture crops of this zone by using intensive agriculture systems and the widespread introduction of their ecological links; 27,9 % is recommended to use for field grain-steam tilled crop rotations and cultivating all agriculture crops of this zone by using ecological systems of agriculture provided soil cultivation, sowing and caring for crops according to the elevation line directions. 8,4% is recommended to use for field grain-grass or grass-grain soil protected crop rotations with total exclusion of row crops. 38,8 % of total community land area should be covered by perennial plants (6,6 %), grasslands (17,0 %), shrubs and forest belts (0,31 %), forests (11,7 %), swamps (1,09 %), lands covered by water (1,2 %). Other 8,8 % are covered by outbuildings and houses (1,2 %), roads (2,0 %), opencasts (0,8 %) and exterior use lands (4,8 %). Key words: forest steppe, landscape systems, land-use, lands, crop rotations.


2021 ◽  
pp. 38-53
Author(s):  
O.G. Golubtsov ◽  
◽  
L.Yu. Sorokina ◽  
L.M. Tymuliak ◽  
V.M. Chekhniy ◽  
...  

The purpose of the publication is to present the results of the study of anthropogenic changes in the landscapes of the Forest-Steppe zone of Ukraine, implemented by assessing the indicators of landscapes anthropogenic transformation, their diversity and fragmentation. The basic research methods are methods of geospatial GIS analysis and decoding of remote sensing data of the Earth, geoinformation mapping. According to the indicators of anthropogenic transformation of landscapes at the level of physical-geographical regions and districts of the Forest-Steppe zone, the features of changes for the period 1992-2018 are determined. The results of assessment of anthropogenic changes in forest-steppe landscapes of Ukraine show that in 1992 as well as in 2018 the vast majority of the landscapes of the territory are strongly and excessively transformed by anthropogenic activity. Such patterns persist, despite the fact that during the analyzed period in part of the investigated area there is a certain decrease in anthropogenic pressure on landscapes. The regular relations between the indicators of anthropic landscape diversity and fragmentation of landscapes are determined, which corroborates to their certain conditionality by the degree and nature of anthropogenic transformation of the territory. The novelty of the study are the proposed methods of spatial and temporal changes in landscapes estimating and identifying such changes in landscapes at the level of physical and geographical regions for the period 1992-2018 and revealing trends in the structure of land use, especially agricultural lands, forests, built-up territories as the leading types of land use in the Forest-Steppe zone of Ukraine.


Forests ◽  
2018 ◽  
Vol 9 (3) ◽  
pp. 117 ◽  
Author(s):  
Juan Paritsis ◽  
Jennifer Landesmann ◽  
Thomas Kitzberger ◽  
Florencia Tiribelli ◽  
Yamila Sasal ◽  
...  

Trees ◽  
2017 ◽  
Vol 31 (6) ◽  
pp. 1973-1986 ◽  
Author(s):  
Elmira Khansaritoreh ◽  
Mahammad Eldarov ◽  
Kherlenchimeg Ganbaatar ◽  
Davaadorj Saindovdon ◽  
Christoph Leuschner ◽  
...  

Statement of the problem and paper objective. Current challenges address global and regional threats to biotic and landscape diversity and the urgent need for its conservation, restoration and reproduction. They make it necessary to improve the tools for conceptual, information and calculating assessment of human activities impact on the environment. That is why the study of the landscapes anthropization, i.e. the process of their transformation through human activity, and the identification of the effects of this anthropization on the environment remains the most pressing problem of geography and geoecology. Given this, the paper objective was to substantiate, develop and verify new and sufficiently informative analytical tools for modeling anthropogenic impact of the land use and/or land cover (LULC) system on landscapes and/or physic-geographic taxons. Methods and results. The experience shows that the resumptive graphic solutions for the analysis of anthropogenic impact on landscapes can be correctly represented in the form of certain modified graphs of statistics. So, the classified scheme of the LULC system areas' cumulative distribution in landscapes and/or physic-geographic taxons was substantiated and constructed as analytical tool for modeling anthropogenic impact on landscapes / taxons. The scheme is based on the concept that the types of the mentioned distribution in its shape are adequate a certain category and the intensity of anthropogenic impact on landscapes or taxons. Properly the distribution of LULC system areas was typified by the ranges for the parameter of polynomial trends in the cumulative graphs of these areas in landscapes or their aggregations. Under these conditions, the scheme of areas' cumulative distribution operates with ten types of distribution – from excessively convex to excessively concave. These types also reflect different anthropogenic impacts on taxons – from weak to excessively strong. Verification of the scheme calculating LULC system areas' cumulative distribution was realized for the test megaregion, including 30 physic-geographic areas and 130 physic-geographic districts of the five regions in the zones of mixed (coniferous / broad-leaved) and broad-leaved forests and forest-steppe of Ukraine. Relevant digital choropleths concerning anthropogenic impact on these taxons were simulated and analyzed. Scientific novelty and practical significance. Scientific novelty is determined by the reason that the developed scheme and obtained model results are more parametrically diverse than in the existing procedures. This is caused by the fact that the proposed tools are more informative and statistically effective for identification of anthropogenic impact on landscapes and physic-geographic taxons than the average-weighted and other calculating anthropization indexes or schemes for consideration the impact of only dominant LULC systems. The verification of the developed tools for the test megaregion affirmed the general validity of the proposed new methodical approaches. The paper results are applicable for the improvement of procedures, schemes and projects of environmental management for plain terrestrial landscapes and their aggregations in midlatitudes.


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