| Title | Definition |
|---|---|
| Abundance |
The total number of individuals of a taxon or taxa in an area, population, or community. Relative abundance refers to the total number of individuals of one taxon compared with the total number of... read more |
| Acid Soil |
Soil with a low pH, less than 7.0 but practically less than 6.6 |
| Active adaptive management |
See Adaptive management |
| Adaptation |
Adjustment in natural or human systems to a new or changing environment. Various types of adaptation can be distinguished, including anticipatory and reactive adaptation, private and public... read more |
| Adaptive capacity |
The general ability of institutions, systems, and individuals to adjust to potential damage, to take advantage of opportunities, or to cope with the consequences. |
| Adaptive management |
A systematic process for continually improving management policies and practices by learning from the outcomes of previously employed policies and practices. In active adaptive management,... read more |
| Afforestation |
Planting of forests on land that has historically not contained forests. (Compare Reforestation.) |
| Afforestation |
The act of planting trees on land that has not previously been under forest according to historical records. (Soruce: SMurray) Artificial establishment by planting or seeding of forest on a non-... read more |
| Agrobiodiversity |
The diversity of plants, insects, and soil biota found in cultivated systems. |
| Agroforestry |
the practice of growing trees and crops together. Agroforestry systems benefit from the ability of trees to protect soil from erosion and to capture and recycle plant nutrients. [fn]Source: (IISD... read more |
| Agroforestry systems |
Mixed systems of crops and trees providing wood, non-wood forest products, food, fuel, fodder, and shelter |
| Alternative energy |
energy that is not popularly used and is usually environmentally sound, such as solar or wind energy (as opposed to fossil fuels). |