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Term Main definition
railway sleeper

A piece of timber laid transversely to the rails in a railway track, to support the rails and them in position at a predetermined width.

rangeland

Land on predominantly covered with grasses or shrubs suitable for grazing.

rattan

A group of climbing palm species composed mainly of Calamus and Daemonorops spp. generally found in moist tropical rainforests.

rattan cutting contract

A contract entered into by and with the government, represented by Secretary of the DENR and another party to cut, gather, and transport rattan.

reaction wood

An abnormal wood formed typically in parts of leaning or crooked stems and in branches.

reclamation

The process of filling up a depressed area with boulders and other building materials until land is no longer reached by water.

recreation

Activities that promote refreshment of health or spirits by relaxation and enjoyment.

recreational zone

A portion of the protected area which has high recreational, tourism, educational, or environmental awareness values where sustainable eco-tourism, recreational, conservation education or public awareness activities may be allowed as prescribed in the management plan.

reforestation

The establishment of forest plantations on temporarily unstocked lands that are considered as forest. Also called as artificial regeneration.

reforestation contract

An agreement between the Philippine Government represented by the DENR, and an entity or individual, whereby the latter agrees to implement an activity or a series of activities required to forest a denuded portion of the public domain.

reforestation contract

The implementation of reforestation activities through written agreements with the private sector such as families, communities and corporations or with the public sector such as LGUs and other government agencies.

regeneration

The process of reestablishing a forest stand by natural or artificial means.

regular sawmill

A sawmill with a daily rated capacity of at least 10,000 board feet.

relative humidity

A measure of the amount of water vapor in the air.

remote sensing

The science and art of obtaining information about an object, area, or phenomenon through the analysis of data acquired by a device that is not in contact with the object.