The stability of the dunes was once attributed to the vegetative cover but recent research has pointed to water as the main source of parabolic dune stability.
32.
The affiliated group stated that there are four contributory reasons : unusually heavy rains; numerous faults and badly broken rocks; steep slopes; and absence of effective vegetative cover.
33.
Workers are putting as much vegetative cover as possible on the ground, and placing straw bales and tubes filled with tree bark in spots where gullies might form.
34.
Although occasionally adaptable to human disturbances, leopards require healthy prey populations and appropriate vegetative cover for hunting for prolonged survival and thus rarely linger in heavily developed areas.
35.
After killing their prey, tigers sometimes drag it to conceal it in vegetative cover, usually pulling it by grasping with their mouths at the site of the killing bite.
36.
Today the farm participates in the Conservation Reserve Program to convert highly erodible cropland to vegetative cover in order to reduce soil erosion, improve water quality, and increase wildlife habitat.
37.
The chain ranges from temperate to sub-Arctic climate types, and the vegetative cover consequently ranges from tundra in the north to dense spruce and larch forests on the larger southern islands.
38.
"Naurzum reserve " ( 877 km?), 3 natural sanctuaries ( 1630 km?) and 12 state nature sanctuaries ( 0.47 km?) with a rich vegetative cover are pride of region.
39.
The active top layer of most southern and central soil profiles is only seasonally frozen, contains water, gases and nutrients, its depth varies depending on material, vegetative cover and the local temperature.
40.
Since then, numerous impact craters have been identified around the world, though Meteor Crater remains one of the most visually impressive owing to its size, young age and lack of vegetative cover.
