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@article{1355415,
author = {Hais, Martin and Chytrý, Milan and Horsák, Michal},
article_number = {December},
doi = {http://dx.doi.org/10.1016/j.jaridenv.2016.08.011},
keywords = {Dry continental climate; Effective topographic heterogeneity; Environmental heterogeneity; Forest-steppe; Siberia; Topography},
language = {eng},
issn = {0140-1963},
journal = {Journal of Arid Environments},
title = {Exposure-related forest-steppe: a diverse landscape type determined by topography and climate},
url = {http://www.sciencedirect.com/science/article/pii/S0140196316301537},
volume = {135},
year = {2016}
}
TY - JOUR
ID - 1355415
AU - Hais, Martin - Chytrý, Milan - Horsák, Michal
PY - 2016
TI - Exposure-related forest-steppe: a diverse landscape type determined by topography and climate
JF - Journal of Arid Environments
VL - 135
IS - December
SP - 75-84
EP - 75-84
SN - 01401963
KW - Dry continental climate
KW - Effective topographic heterogeneity
KW - Environmental heterogeneity
KW - Forest-steppe
KW - Siberia
KW - Topography
UR - http://www.sciencedirect.com/science/article/pii/S0140196316301537
N2 - Topographic heterogeneity under dry continental climate can create a landscape mosaic called “exposure-related forest-steppe”, characterized by a regular pattern of forest on the north- and steppe on the south-facing slopes. Here we identify the climatic and topographic determinants of this landscape type, using a model of the Altai Mountains in southern Siberia because they (1) contain large areas of foreststeppe together with forested and steppe landscapes, and (2) possess well-preserved natural land-cover. Based on the Landsat land-cover classification and digital elevation model we identified areas containing exposure-related forest-steppe and modeled their climatic and topographic thresholds using regression trees. The models showed that in the Altai exposure-related forest-steppe is most common in topographically heterogeneous areas with MayeSeptember precipitation of 226e377 mm and a mean July temperature of 13.8e15.6 _C. Its existence is jointly determined by hilly topography and a climate that is moist enough to support tree growth on north-facing slopes, but insufficiently so to support woodland development on south-facing slopes. This is consistent with the concept of effective topographic heterogeneity, suggesting that topographic heterogeneity on the landscape level is translated into high habitat diversity and species diversity only within a certain range of climatic conditions.
ER -
HAIS, Martin, Milan CHYTRÝ a Michal HORSÁK. Exposure-related forest-steppe: a diverse landscape type determined by topography and climate. \textit{Journal of Arid Environments}. 2016, roč.~135, December, s.~75-84. ISSN~0140-1963. Dostupné z: https://dx.doi.org/10.1016/j.jaridenv.2016.08.011.
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