Author: Paul W. AdamsPublisher:
ISBN:
Category : Forest soils
Languages : en
Pages : 5
Book Description
Soil Compaction on Woodland Properties
Author: Paul W. AdamsPublisher:
ISBN:
Category : Forest soils
Languages : en
Pages : 5
Book Description
Soil Compaction on Woodland Properties
Author: Oregon State University. Extension servicePublisher:
ISBN:
Category :
Languages : en
Pages : 7
Book Description
The Woodland Workbook: Soil Compaction on Woodland Properties
Author: P.W. AdamsSoil Compaction on Woodland Properties
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 8
Book Description
Provides background on the nature and effects of soil compaction, how it can be recognized and some management alternatives for reducing impacts.
Soil Compaction on Forest and Range Lands
Author: Howard William LullPublisher:
ISBN:
Category : Soil stabilization
Languages : en
Pages : 36
Book Description
The purpose of this report is to review available information on soil compaction as related to soil and water conservation on forest and range lands.
Compaction Effects on Physical Properties on Three Forest Soils in the Upper Great Lakes Region
Author: Michael James MungovenPublisher:
ISBN:
Category :
Languages : en
Pages : 186
Book Description
Assessing Soil Compaction on Forest Inventory & Analysis Phase 3 Field Plots Using a Pocket Penetrometer
Author: Michael C. AmacherPublisher:
ISBN:
Category : Forest soils
Languages : en
Pages : 18
Book Description
Soil compaction is an important indicator of soil quality, yet few practical methods are available to quantitatively measure this variable. Although an assessment of the areal extent of soil compaction is included as part of the soil indicator portion of the Forest Inventory & Analysis (FIA) program, no quantitative measurement of the degree of soil compaction is made. We tested a small, lightweight pocket penetrometer that measures soil compression strength as a simple, quantitative measure of the degree of compaction of mineral soils under forested conditions. Soil compression strengths were significantly higher in compacted trails and areas than in adjacent undisturbed locations. In contrast, no significant difference in soil compression strength was found between rutted trails and adjacent undisturbed areas. A protocol is suggested for further pilot testing of this device as part of the soil indicator assessment. The main disadvantage of this device is that many of the compacted soils had compression strengths higher than the maximum measurable value of 4.5 tons/ft2. Despite this limitation, this device can rapidly and easily distinguish between compacted and uncompacted areas in the field. Time previously spent by field crews trying to identify qualitative evidences of compaction can instead be used to provide a quantitative measure of the degree of compaction, which would strengthen the analysis and interpretation of the soil quality indicator.
Factors Affecting Compaction of 14 California Upland Soils
Author: Richard F. HowardRelative Bulk Density as an Index of Soil Compaction and Forest Productivity in British Columbia
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Soil compaction often limits conifer regeneration on sites degraded by construction of landings and roads, but inadequate understanding of compaction characteristics has sometimes led to inappropriate rehabilitation efforts. This warrants development of new methods to assess compaction and its relation to tree growth. The objective of this study was to develop a high-level integration indicator that will characterize compaction of forest soils and that could be correlated to tree height growth. Mineral particle density of soils from interior British Columbia (BC) forests varied significantly among the geographic locations. Oxalate-extractable Fe- and Al-oxides and particle size distribution (PSD) were related to soil and mineral particle densities, while soil organic matter (SOM) and Al- and Fe-oxides were important soil properties in relation to soil particle density. The significance of levels of single soil properties in predicting maximum bulk density (MBD) were in the order: plastic and liquid limits, organic matter content, oxalate-extractable oxide, and PSD. Stratification of the sample according to Atterberg limits improved the predictability of MBD, and variation in particle density was included in the prediction by other soil properties used in the models. Height growth of interior Douglas-fir (Pseudotsuga menziesii var. glauca [Bessin] Franco) was restricted when relative bulk density (RBD) was> 0.72. For lodgepole pine (Pinus contorta Dougl. ex Loud. var. latifolia Engelm.) and hybrid white spruce (Picea glauca [Moench] Voss × engelmannii Parry ex Engelm.), an RBD of 0.60 - 0.63 corresponded to maximum height growth, while that of 0.78 - 0.84 appeared to limit height growth. The presence of surface organic material mitigated compaction and was often associated with lower RBD. Interior Douglas-fir and lodgepole pine planted in low elevation sites in north-central BC did not grow well and their height growth was weakly related to RBD. The results suggest.
Annotated Bibliography on Soil Compaction
Author: American Society of Agricultural Engineers. Soil Compaction CommitteePublisher:
ISBN:
Category : Soil stabilization
Languages : en
Pages : 38
Book Description