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Layer: Land Capability (ID: 0)

Name: Land Capability

Display Field: ASUBCL1

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: The 1:50 000 Land Capability for Forestry in Nova Scotia data was digitized from hardcopy maps produced for the Canada Land Inventory program. It classifies all mineral and organic soils in Nova Scotia into one of seven classes based on their inherent ability to grow commercial timber. The classes are based on the natural state of the land without improvements such as fertilization, drainage, or amelioration practices. It is realized that with improved forest management the productivity may change; to the extent that the limitations shown in the symbol may be altered, class changes may also take place. However, significant changes will only be achieved through costly and continuing practices.Field Definitions:ACLASS, BCLASS, CCLASSNo important limitations to the growth of commercial forests - Lands having no important limitations to the growth of commercial forests. Soils are deep, permeable of medium texture, moderately, well-drained to imperfectly drained, have good water holding capability and are naturally high in fertility. Their topographic position is such that they frequently receive seepage and nutrients from adjacent areas. They are not subject to extremes of temperatures or evapotranspiration. Productivity will usually be greater than 111 cubic feet per acre per year. When requires, this clss may be subdivied on the basis of productivity into class 1 (111 to 130), 1a (131 to 150), 1b (151 to 170), 1c (171 to 190), 1d (191 to 210) and by 20 cubic foot classes thereafter, as necessary. Does not have subclasses. Slight limitations to the growth of commercial forests - Lands having slight limitations to the growth of commercial forests. Soils are deep, well-drained to moderately well-drained, of medium to fine texture and have good water holding capacity. The most common limitations (all of relatively slight nature) are adverse climate, soil moisture defiency, restricted rooting depth, somewhat low fertility and the cumulative effects of several minor adverse soil characteristics. Productivity will usually be from 90 to 110 cubic feet per acre per yearModerate limitations to the growth of commercial forests - Lands having moderate limitations to the growth of commercial forests. Soils may be deep to somewhat shallow, well to imperfectly drained, of medium to fine texture with moderate to good water-holding capacity. They may be slightly low in fertility or suffer from periodic moisture imbalances. The most common limitations are: adverse climate, restricted rooting depth, moderate deficiency or excess of soil moisture, somewhat low fertility, impeded soil drainage, exposure (in maritime areas) and occasional innundation. Productivity will usually be from 71 to 90 cubic feet per acre per yearModerately severe limitations to the growth of commercial forests - Lands having moderately severe limitations to the growth of commercial forests. Soils may vary from deep to moderately shallow from excessive through imperfect to poor drainage from coarse through fine texture, from good to poor moisture holding capacity, from good to poor structure and from good to low natural fertility. The most common limitations are: moisture deficiency or excess, adverse climate, restricted rooting depth, poor structure, excessive carbonates, exposure, or low fertility. Productivity will usually be from 51 to 70 cubic feet pr acre per year.Severe limitations to the growth of commercial forest (Productivity 31 to 50 ft2/yr) - Lands having severe limitations to the growth of commercial forest. Soils are frequently shallow to bedrock, stoney, excessively or poorly drained of coarse or fine texture, may have poor moisture holding capacity and be low in natural fertility. The most common limitations (often in combination) are: moisture deficiency or excess, shallowness to bedrock, adverse regional or local climate, low natural fertility, exposure, particularly in maritime areas, excessive stoniness and high levels of carbonates. Productivity will usually be from 31 to 50 cubic feet per year.Severe limitations to the growth of commercial forest (Productivity 11 to 30 ft2/yr) - Lands having severe limitations to the growth of commercial forest. The mineral soils are frequently shallow, stoney, excessively drained, of coarse texture and low in fertility. A large percentage of the land in the class is composed of poorly drained organic soils. The most common limitations (frequently in combination) are: shallowness to bedrock, deficiency or excess of soil moisture, high levels of soluble salts, low natural fertility, exposure, inundation and stoniness. Productivity will usually be from 11 to 30 cubic feet per acre per year.Severe limitations which preclude the growth of commercial forest - Lands having severe limitations which preclude the growth of commercial forest. Mineral soils are usually extremely shallow to bedrock, subject to regular flooding, or contain toxic levels of soluble salts. Actively eroding or extremely dry soils may also be placed in this class. A large percentage of the land is very poorly drained organic soils. The most common limitations are: shallowness to bedrock, excessive soil moisture, frequent inundation, active erosion, toxic levels of soluble salts and extremes of climate or exposure. Productivity will usually be less than 10 cubic feet per acre per year.

Copyright Text: Originator: Department of Natural Resources- Forestry Division, GIS Section Publication_Date: UnknownTitle: Land Capability for Forestry Geospatial_Data_Presentation_Form: vector digital data Other_Citation_Details: As per the license agreement: The USER agrees to acknowledge DNR as the source of the DATA, if using or distributing it in its original form, whether in whole or in part, or as part of a value added product. Online_Linkage: http://www.gov.ns.ca/natr/forestry/gis/licence.asp?url=../gis/landcap.asp

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