SRM Glossary

A (55)
| B (41)
| C (74)
| D (42)
| E (35)
| F (42)
| G (56)
| H (32)
| I (17)
| K (8)
| L (23)
| M (24)
| N (14)
| O (16)
| P (71)
| Q (1)
| R (77)
| S (89)
| T (32)
| U (12)
| V (10)
| W (20)
| X (1)
| Y (4)
| Z (1)
Term Description Source
Lamb Crop

The number of lambs produced by a given number of ewes, usually expressed in percent of lambs weaned of ewes exposed. cf. calf crop, kid crop

Society for Range Management. 1998. Glossary of terms used in range management, fourth edition. Edited by the Glossary Update Task Group, Thomas E. Bedell, Chairman. Used with permission.
Lambing Ground

Range reserved for grazing during lambing period.

Society for Range Management. 1998. Glossary of terms used in range management, fourth edition. Edited by the Glossary Update Task Group, Thomas E. Bedell, Chairman. Used with permission.
Land

The total natural and cultural environment within which production takes place; a broader term than soil. In addition to soil, its attributes include other physical conditions, such as mineral deposits, climate, and water supply; location in relation to centers of commerce, populations, and other land; the size of the individual tracts or holdings; and existing plant cover, works of improvement, and the like. Some use the term loosely in other senses; as defined above but without the economic or cultural criteria; especially in the expression "natural land"; as a synonym for "soil"; for the solid surface of the earth; and also for earthly surface formations, especially in geomorphological expression "land form."

Society for Range Management. 1998. Glossary of terms used in range management, fourth edition. Edited by the Glossary Update Task Group, Thomas E. Bedell, Chairman. Used with permission.
Land Capability

Land capability, as originally used in the United States, is an expression of the effect of physical land conditions, including climate, on the total suitability for use without damage for crops that require regular tillage, for grazing, for woodland, and for wildlife. Land capability involves consideration of (1) the risks of land damage from erosion and other causes and (2) the difficulties in land use owing to physical land characteristics, including climate.

Society for Range Management. 1998. Glossary of terms used in range management, fourth edition. Edited by the Glossary Update Task Group, Thomas E. Bedell, Chairman. Used with permission.
Land Use Incentives

A method for implementing land use plans in which a governmental unit offers inducements, usually monetary, to private landowners for adopting certain land uses or practices.

Society for Range Management. 1998. Glossary of terms used in range management, fourth edition. Edited by the Glossary Update Task Group, Thomas E. Bedell, Chairman. Used with permission.
Land Use Planning (rangelands)

The process by which decisions are made on future land uses over extended time periods that are deemed to best serve the general welfare. Decision-making authorities on land uses are usually vested in state and local governmental units, but citizen participation in the planning process is essential for proper understanding and implementation, usually through zoning ordinances.

Society for Range Management. 1998. Glossary of terms used in range management, fourth edition. Edited by the Glossary Update Task Group, Thomas E. Bedell, Chairman. Used with permission.
LD50

The relative degree of toxicity of pesticides to warm-blooded animals defined as the single dosage by mouth that kills 50 percent of test animals, expressed as mg/kg of body weight.

Society for Range Management. 1998. Glossary of terms used in range management, fourth edition. Edited by the Glossary Update Task Group, Thomas E. Bedell, Chairman. Used with permission.
Leaf Area Index (LAI)

The ratio of the total upper leaf surface of the plant community to the corresponding ground area expressed as a proportion. LAI may exceed 1.

Society for Range Management. 1998. Glossary of terms used in range management, fourth edition. Edited by the Glossary Update Task Group, Thomas E. Bedell, Chairman. Used with permission.
Legume (rangelands)

Members of the plant family Fabaceae.

Society for Range Management. 1998. Glossary of terms used in range management, fourth edition. Edited by the Glossary Update Task Group, Thomas E. Bedell, Chairman. Used with permission.
Lessee

One who has specified rights or privileges under lease. Syn. Permittee

Society for Range Management. 1998. Glossary of terms used in range management, fourth edition. Edited by the Glossary Update Task Group, Thomas E. Bedell, Chairman. Used with permission.
Lessor

One who leases specified rights or privileges.

Society for Range Management. 1998. Glossary of terms used in range management, fourth edition. Edited by the Glossary Update Task Group, Thomas E. Bedell, Chairman. Used with permission.
License

See grazing license or permit.

Society for Range Management. 1998. Glossary of terms used in range management, fourth edition. Edited by the Glossary Update Task Group, Thomas E. Bedell, Chairman. Used with permission.
Life-Form

Characteristic form or appearance of species at maturity, e.g., tree, shrub, herb, etc.

Society for Range Management. 1998. Glossary of terms used in range management, fourth edition. Edited by the Glossary Update Task Group, Thomas E. Bedell, Chairman. Used with permission.
Light Grazing

A comparative term which indicates that the stocking rate of one pasture is relatively less than that of other pastures. Often erroneously used to mean under use. cf. heavy and moderate grazing

Society for Range Management. 1998. Glossary of terms used in range management, fourth edition. Edited by the Glossary Update Task Group, Thomas E. Bedell, Chairman. Used with permission.
Lime

(1) Calcium oxide. (2) All limestone-derived materials applied to neutralize acid soils.

Society for Range Management. 1998. Glossary of terms used in range management, fourth edition. Edited by the Glossary Update Task Group, Thomas E. Bedell, Chairman. Used with permission.
Limiting Factor

Any environmental factor which exists at suboptimal level and thereby prevents an organism from reaching its full biotic potential.

Society for Range Management. 1998. Glossary of terms used in range management, fourth edition. Edited by the Glossary Update Task Group, Thomas E. Bedell, Chairman. Used with permission.
Lister

A double-wing plow, the shares of which throw the soil in opposite directions, leaving the land with a series of alternate ridges and furrows. Lister bottoms are commonly used to open a furrow for interseeding native range.

Society for Range Management. 1998. Glossary of terms used in range management, fourth edition. Edited by the Glossary Update Task Group, Thomas E. Bedell, Chairman. Used with permission.
Litter (rangelands)

The uppermost layer of organic debris on the soil surface; essentially the freshly fallen or slightly decomposed vegetal material.

Society for Range Management. 1998. Glossary of terms used in range management, fourth edition. Edited by the Glossary Update Task Group, Thomas E. Bedell, Chairman. Used with permission.
Livestock

Domestic animals.

Society for Range Management. 1998. Glossary of terms used in range management, fourth edition. Edited by the Glossary Update Task Group, Thomas E. Bedell, Chairman. Used with permission.
Livestock Exclusion

Range that is closed to grazing by livestock. Syn. closed range

Society for Range Management. 1998. Glossary of terms used in range management, fourth edition. Edited by the Glossary Update Task Group, Thomas E. Bedell, Chairman. Used with permission.
Livestock Flexibility

The ability to alter the number, kind, or class of animals within a livestock enterprise as warranted by variability in forage, economic, weather, or other conditions.

Society for Range Management. 1998. Glossary of terms used in range management, fourth edition. Edited by the Glossary Update Task Group, Thomas E. Bedell, Chairman. Used with permission.
Livestock Management

Application of technical principles and business methods to livestock production.

Society for Range Management. 1998. Glossary of terms used in range management, fourth edition. Edited by the Glossary Update Task Group, Thomas E. Bedell, Chairman. Used with permission.
Livestock Production

(1) The weight, number of animals, etc., that a particular range, seeded pasture, or management system produces. (2) The business of producing livestock.

Society for Range Management. 1998. Glossary of terms used in range management, fourth edition. Edited by the Glossary Update Task Group, Thomas E. Bedell, Chairman. Used with permission.