Bøger udgivet af Canadian Forest Service,Canada

This is a handbook of more than 200 traditional plants and their usage among First Nations people in Canada's northwest boreal forest (northern Manitoba, Saskatchewan, and Alberta).

An ecological classification system was developed for Northern Albertathrough the analysis of vegetation, soil, site, and forest productivityinformation. The hierarchical classification system has three levels -ecosite, ecosite phase and plant community type. Thirty-eight ecositesare described with further detail provided by subdivision into ecositeand ecosite phase and plant community type. A soil type classificationsystem that describes 17 soil types was also developed. Managementinterpretations were made for drought, excess moisture, soil ruttinghazard, soil compaction hazard, puddling hazard, soil erosion hazard,frost heave hazard, soil temperature limitations, vegetationcompetition, and windthrow hazard. Colour photos and drawings for 87common plants of northern Alberta are presented.

Describes the germination of 123 species of trees indigenous to Tanzania. Methods of seed extraction and storage are detailed, along with recommended pretreatments and various germination and viability tests. English, Kiswahili and vernacular species names are listed with scientific equivalents.

rThis guide to approximately 90 species is designed to enable people interested in trees to identify the insects and mites that cause noteworthy damage to pines in Canada, east of the Rocky Mountains.

Covering some 450 species, this work is designed to aid identification of the insects and mites that cause damage to hardwood trees to the east of the Rocky Mountains. Identification is grouped under 20 tree genera with flowchart keys that lead to individual species or groups of similar organisms.

This CD-ROM uses video, audio, text, graphics, photographs and animation to teach the Forest Fire Behavior Prediction System, a systematic method for assessing fire behaviour. There are many examples, exercises and tests, along with three interactive case studies and an FBP System calculator.