This is due to the increased biomass of the vegetative layer as these species enter their growing season.

Once the protective vegetative layer is removed, these lands are exposed to the hot sun and can lose their usefulness.

Self-contained units, typically square in shape, that require only the soil medium and vegetative layer for a functioning green roof.

Some modular systems are pre-grown at nurseries to client specifications, forming an instant vegetative layer.

Number of Vegetative Layers - count the number of vegetative layers that are either growing within or hanging over your plot.

Preferably this would be a vegetative layer of grasses and/or other low-growing plants but may also include plant residues such as leaf litter and tree debris as well as various forms of rock.

Litter type At Four Plots In Site - follow directions on the How to Determine Litter Type, Number of Vegetative Layers, and Percent Canopy Closure link.

This indiscriminate aerial spraying destroys not only the illegal crops, but also the crops which produce the food, and it also affects the health of the human and animal population and the vegetative layer of the soil.