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What is the place with little rainfall and very little vegetation called? 

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This seems to indicate that during years with high rainfall, topographic thresholds are primarily controlled by rainfall, while vegetation cover seems to exert a secondary control.
The analysis shows that the NDVI and rainfall are uncorrelated in the Amazon, except in the northernmost part, where the rainfall regime is drier and a savanna type of vegetation is present.
The results suggest that in a varying environment, vegetation plays an active role in determining the observed vegetation‐rainfall distributions.
This paper demonstrates how the dependence of convective rainfall (which is the major component of the total rainfall in tropics) on the local vegetation can be inferred by probing into interactions among vegetation, boundary layer, and moist convection.
Comparison of the vegetation recovery in the town site with recovery in little-used streets shows that soil compaction is a major limiting factor on the revegetation of disturbed desert areas; the recovery rate of vegetation in compacted soil is too low to allow prediction of a full-recovery time.
The latter is strongly dependent on the rainfall intensity, as well as gully channel slope and vegetation cover.
Climatic changes appear to have left little mark on the local vegetation.
Results suggested that spontaneous vegetation occupied approximately 13% by area of the development sites while possible indigenous vegetation occupied as little as 5%.
This finding indicates that vegetation around the southern TP has a positive correlation with summer rainfall in southern China and North China, but a negative correlation with summer rainfall in YYR and western China.
Vegetation of drier regions is found to be more sensitive to interannual variability in rainfall.
The increase in rainfall, while statistically significant, is distributed over a broad region, so that it is of little relevance from a water resources perspective, although it may enhance vegetation yield.
Results indicate a particularly strong sensitivity of vegetation in areas with 100–400 mm of annual rainfall.
Vegetation structure and density are greatly influenced by the rainfall.
It appears, therefore, that the bare soil areas act as rainfall collectors for the vegetation and are essential if the vegetation is to survive in its present vigorous form.
Results indicate correlations between ENSO events, rainfall, and vegetation.
Our findings highlight the relationship among feedback intensity, rainfall and pattern dynamics of the vegetation.

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