Glossary - Afforestation, Reforestation and Forest Restoration in Arid and Semi-arid Tropics - page 250

Bio-aesthetic plantation ⇒ Amenity plantation

Biopesticide An organic pesticide derived from plants, characterised by its non-
polluting nature.

Biotic pressure The pressure or interference in the natural ecological processes in a
place exerted by human and animal agents. Grazing, wood collection, and destruction
of vegetation are the predominant activities constituting biotic pressure.

Black alkali ⇒ Alkaline soil

Booster pump A pump intended to boost the pressure of water in a network of
pipeline for water supply and distribution.

Bore well ⇒ Tube well

Boron cations Traces of boron found in soils which acts as a toxic substance. Plants
have a very narrow range of desirable boron iron concentration, which should not be
exceeded for healthy plant growth.

Bowditch rule A method of distributing error in a surveyed traverse. The method
assumes that all the observations have the same likelihood of error.

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Branch cuttings Cuttings

Branch cuttings Cuttings prepared from the branches of adult trees or shrubs for
propagation in a nursery, or for planting out in field. This is the commonest method
of vegetative propagation.

BSR ⇒ Basic schedule of rates

Budding An asexual method of plant propagation wherein a nascent bud of the plant
material is inserted in a notch in the rootstock.

Bund An embankment, a ridge, or a linear mound of earth used to check flow of
water.

Cadastral maps Maps showing or recording property boundaries, sub-division of
agricultural holdings, estates, buildings, and related structures. Where such maps
form the basis of collection of land revenue from the tenants, these are also called
the revenue maps. These are the basic records of land ownership and are easily
available.

Camber Transverse slope or curvature in road surface or top of an embankment to
prevent rain water from standing and forming puddles.

Carbon sequestration Locking of atmospheric free carbon in organic matter
through the process of photosynthesis. Green plants are the principal agents of carbon
sequestration. They maintain the constant level of carbon dioxide in the atmosphere.
However, with ever rising rate of carbon coming into the atmosphere as a result of
burning of fossil fuel, the balance may no longer hold good in future.