The vegetation and land cover structure of tundra areas is fragmented when compared to other biomes. Thus, satellite images of high resolution are required for producing land cover classifications, in order to reveal the actual distribution of land cover types across these large and remote areas. ...
The vegetation and land cover structure of tundra areas is fragmented when compared to other biomes. Thus, satellite images of high resolution are required... T Virtanen,M Ek - 《International Journal of Applied Earth Observations & Geoinformation》 被引量: 40发表: 2014年 Biomes Of The Earth ...
Inuit people see in tundra a land on which and from which they live. History Arctic tundra is a 'young' biome, compared to other great biomes of the biosphere such as boreal forest and temperate grasslands. Its continuity dates from the late Pliocene-Pleistocene climatic transit ......
Tundra food webs are relatively simplistic compared to other biomes because biodiversity is low. The top predators of the system tend to be mammalian carnivores, such as polar and brown bears, wolves and foxes, which eat a broad variety of prey. Snowy owls and several other birds of prey are...
Compared with other terrestrial biomes, deserts have extremely low productivity. 1. Discuss how temperature, soil composition, and annual precipitation limit productivity in deserts. 2. Describe a four-organism food chain that might characterize a deser ...
In this study, projected future winner species were more likely to have greater seed mass values, and greater variation in SLA and seed mass compared to losers, potentially conferring an advantage in a warmer future climate. However, the relationship of MTV and ITV with projected range shifts ...
respired by 1.4 °C warming compared to present temperatures, across the tundra region (Fig.6and Supplementary Fig.7). For the arctic tundra region alone, our upscaling exercise suggests that a temperature rise of 1.4 °C would enhance ER from 1.2 to 1.5 PgC yr−1(increase of ...
This led to the relatively small amount of basin-averaged evapotranspiration compared with other components. Change in storage within the thaw layer was small, because its thickness was thin and soil moisture was kept in a nearly saturated condition during the summer. 展开 ...
Loess has a distinctive particle size distribution compared to aeolian sand (Figure 11). Although dune sand is characterized by mean particle sizes in the medium-to-fine sand range, loess is dominated by silt-sized particles, but with considerable variability. Mean particle sizes of loess range ...
Overall, our findings demonstrate that relationships and trade-offs among six fundamental plant traits are generalisable across lineages and among biomes to the cold extremes of the planet. It remains to be tested whether such relationships are consistent in other environmental extremes, such as desert...