Abstract
The area of root disease centers on the Coeur d'Alene National Forest in northern Idaho was effectively estimated from large-scale color infrared aerial photographs. An estimated 5.1% (12 160.7 ha) of the commercial forest land was occupied by infection centers. Root disease centers were identified in 113 of 364 stands actually surveyed. Although most of these 113 stands were of the Tsugaheterophylla – Pachistimamyrsinites habitat type, the highest percentage of stands with root disease was found in the Abiesgrandis – Pachistimamyrsinites habitat type.Observations made during these studies suggest that occurrence of Pseudotsugamenziesii (Mirb.) Franco, Abiesgrandis (Dougl.) Lindl., or both in a stand is the most important factor in the expression of root disease centers. Accuracy of interpretation of photographs was 92%; incorrect interpretations were consistently associated with stands in the Abieslasiocarpa series of habitat types or with stands stocked with conifers tolerant of root pathogens.
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Claims 7
Claim · model-written summary
An estimated 5.1% (12 160.7 ha) of commercial forest land was occupied by root disease infection centers.
Verbatim
e0“The area of root disease centers on the Coeur d'Alene National Forest in northern Idaho was effectively estimated from large-scale color infrared aerial photographs”
e1“An estimated 5.1% (12 160.7 ha) of the commercial forest land was occupied by infection centers”
Claim · model-written summary
Root disease centers were identified in 113 of 364 surveyed stands.
Verbatim
t1“estimate area of root disease centers in forests”
e2“Root disease centers were identified in 113 of 364 stands actually surveyed”
Claim · model-written summary
Most of the 113 stands with root disease were of the Tsugaheterophylla – Pachistimamyrsinites habitat type.
Verbatim
e3“Although most of these 113 stands were of the Tsugaheterophylla – Pachistimamyrsinites habitat type, the highest percentage of stands with root disease was found in the Abiesgrandis – Pachistimamyrsinites habitat type”
Claim · model-written summary
The highest percentage of stands with root disease was found in the Abiesgrandis – Pachistimamyrsinites habitat type.
Verbatim
e3“Although most of these 113 stands were of the Tsugaheterophylla – Pachistimamyrsinites habitat type, the highest percentage of stands with root disease was found in the Abiesgrandis – Pachistimamyrsinites habitat type”
Claim · model-written summary
Occurrence of Pseudotsugamenziesii, Abiesgrandis, or both in a stand is the most important factor in the expression of root disease centers.
- Taxon
- Pseudotsugamenziesii (Mirb.) Francoe4
- Material
- Abiesgrandis (Dougl.) Lindl.e4
- Outcome
- expression of root disease centerse4
- Qualifier
- the most important factore4
Not reportedDirection
Verbatim
e4“occurrence of Pseudotsugamenziesii (Mirb.) Franco, Abiesgrandis (Dougl.) Lindl., or both in a stand is the most important factor in the expression of root disease centers”
Claim · model-written summary
Accuracy of photo interpretation for root disease centers was 92%.
Verbatim
e5“Accuracy of interpretation of photographs was 92%”
Claim · model-written summary
Incorrect interpretations were associated with stands in the Abieslasiocarpa series of habitat types or with stands stocked with conifers tolerant of root pathogens.
- Taxon
- conifers tolerant of root pathogense6
- Material
- Abieslasiocarpa series of habitat typese6
- Outcome
- incorrect interpretationse6
Not reportedDirection
Verbatim
e6“incorrect interpretations were consistently associated with stands in the Abieslasiocarpa series of habitat types or with stands stocked with conifers tolerant of root pathogens”