Assisted Natural Regeneration (ANR)
Type: Approaches
Creation: 2017-03-20 09:28 Updated: 2017-03-20 09:39
Compilers: Philippine Overview of Conservation Approaches and Technologies
Reviewers: Deborah Niggli
Country/ region/ locations where the Approach has been applied
- Country: Philippines
- Region/ State/ Province: Danao, Bohol
- Map: View Map
Description of the SLM Approach
Short description of the Approach
A process of rehabilitating degraded forest lands by taking advantage of trees already growing in the area.
Detailed description of the Approach
The objectives of the Assisted Natural Regeneration (ANR) approach includes reduction of cost, speeding-up of forest restoration and enhancing plant diversity. It accelerates the succession process by removing or reducing barriers to natural regeneration such as competition with weedy species, soil degradation and recurring disturbances.
ANR is a method for enhancing the establishment of secondary forest from degraded grassland and shrub vegetation by protecting and nurturing mother trees and their wildlings inherently present in the area.
Stages of implementation: (a)Site identification wherein ideal sites for ANR implementation are those with 600-700 vigorous wildlings per hectare with 15-200 cm height of pioneer species, brush and other woody species relatively well spread on the area; (b) Survey, Mapping and Planning (SMP); (c)Locating and marking of wildlings which include tagging, measuring and identification for monitoring of growth and survival rates; (d) Liberation and tending of regenerants through ring weeding and placing of the cut grasses into the base of the wildlings to serve as mulch and protect them from direct exposure to sunlight and to serve as fertilizer overtime; (e) Suppressing the grass; and (f) Maintenance and protection of established ANR site.
The project of ANR in Barangay San Miguel, Danao, Bohol was initiated 2006 until 2009. Stakeholders involved are the Department of Environment and Natural Resources (DENR) including field counterparts in Region 7, Non-Government Organization, Local Government Unit (LGU) and the People's Organization (PO) in Danao, Bohol.
One of the important foci of the project is botanical inventory and vegetation study of site which deals only on the study of trees and other plant species in the site rather than biodiversity study of site which encompasses the study of both plant and animals in the site.
Photos of the Approach
- 📍 Danao, Bohol
- 📷 Engr. Djolly Ma. P. Dinamling, Bureau of Soils and Water Management