Abstract Community-level vegetation type differentiation is regarded as an important application of remote sensing in monitoring the health of semiarid environments and yet it has proved difficult to discriminate more than two or three community types with confidence when using coarse spatial resolution data from off-nadir scanning sensors such as the AVHRR, even when multi-temporal datasets ar...

Expansive soils are found in numerous regions of the world explicitly arid and semiarid zones. These expand when absorbed moisture shrink released water. Such soil is viewed as a characteristic risk for infrastructures due to swell behavior. become more problematic lightly or moderately loaded structures built on them. The swelling shrinkage these chiefly happen presence montmorillonite mineral...

Increasing feed grain supply, particularly domestic is intended to guarantee security and, as a result, food security. Based on the Global Agro-Ecological Zones (GAEZ) model, potential yield and actual of in China were estimated. According theory factor endowment, development coefficient efficiency advantage index then constructed determine whether current spatial layout reasonable how it could...

Southern Africa, with its vast arid to semiarid areas, is considered vulnerable precipitation changes and amplifying weather extremes. However, during the last 100 ka, huge lakes existed in currently dry central Kalahari. It has been suggested that these could have due altered atmospheric circulation pattern, leading an increase or annual distribution. Past climate are recorded paleo-archives, ...

which generally have little or no vegetation, produce runoff; sink areas, located downslope of the source arIn many semiarid regions, runoff and erosion differ according to eas, receive and store the runoff and thereby become vegetation patch type. These differences, although hypothesized to fundamentally affect ecological processes, have been poorly quantienriched and relatively productive. Th...