Download or read book Nature and Extent of Macropores in Forest Soils and Their Influence on Subsurface Water Movement written by Gerald M. Aubertin and published by . This book was released on 1971 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: S2Rain, falling on a sloping forested soil, may enter the soil quickly and move considerable distances through the soil by way of macropores. A macropore is a large pore, cavity, passageway, channel, tunnel, or void in the soil, through which water usually drains by gravity. Large quantities of water can move through the soil by way of these macropores-without appreciably wetting the soil mass. This phenomenon complicates the study and management of forested watersheds. A series of studies was undertaken to provide information about the nature, extent, and influence of macropores, as an aid to future studies and management of forest soils. This is a report on those studies.S3.
Download or read book Agricultural Reviews and Manuals written by and published by . This book was released on 1978 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Forest Service Research Accomplishments written by and published by . This book was released on 1972 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Precipitation Partitioning by Vegetation written by John T. Van Stan, II and published by Springer Nature. This book was released on 2020-01-01 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents research on precipitation partitioning processes in vegetated ecosystems, putting them into a global context. It describes the processes by which meteoric water comes into contact with the vegetation's canopy, typically the first surface contact of precipitation on land. It also discusses how precipitation partitioning by vegetation impacts the amount, patterning, and chemistry of water reaching the surface, as well as the amount and timing of evaporative return to the atmosphere. Although this process has been extensively studied, this is the first review of the global literature on the partitioning of precipitation by forests, shrubs, crops, grasslands and other less-studies plant types. The authors offer global contextualization combined with a detailed discussion of the impacts for the climate and terrestrial ecohydrological systems. As such, this comprehensive overview is a valuable reference tool for a wide range of specialists and students in the fields of geoscience and the environment.
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1972 with total page 1932 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book How to Use Two 2 Computational Strategies to Solve Simple System Identification Problems written by Rolfe A. Leary and published by . This book was released on 1972 with total page 706 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research Accomplishments written by and published by . This book was released on 1972 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Forest Hydrology and Catchment Management written by Leon Bren and published by Springer Nature. This book was released on 2023-01-18 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides scientific evidence to underline the notion that forests offer the most reliable water catchments in the natural environment. The unique Australian ecosystem provides valuable information on the water yields and hydro-ecology of forests. Insights can be transferred to other climate zones and conditions. In this second edition, the author puts a particular focus on the most prominent challenges of our time, in relation to water management. Ground salinity, climate change, and droughts have all been newly added to this updated edition. One of the most important concepts is highlighting the accumulated contribution of smaller catchments and minor streams. Finally, readers will also get information on the economic dimension of water management. With its incisive, disciplined, and quantitative (and occasionally humorous) approach, this book helps scientists, students, and regulators to understand water-driven conflicts and offers guidance on management.
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1991 with total page 806 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book U S D A Forest Service Research Paper NC written by and published by . This book was released on 1968 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book U S D A Forest Service Research Paper NE written by Northeastern Forest Experiment Station (Radnor, Pa.) and published by . This book was released on 1971 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Yields of Eastern White Pine in New England Related to Age Site and Stocking written by William B. Leak and published by . This book was released on 1970 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt: S2The Universities of Maine, Massachusetts, and New Hampshire, in cooperation with the Northeastern Forest Experiment Station, initiated in 1959-60 a study of the effects of site and stocking on the growth of eastern white pine. The primary purposes of the study were to develop equations for: (1) predicting the volume increment per acre of pure, even-aged, white pine stands from observable characteristics of the stand, soil, and topography; and (2) predicting the increment of individual white pine trees related to characteristics of the tree, stand, and site. By 1965, measurements of stand growth and development for a 3-year period were available from nearly all field plots. A preliminary analysis revealed that one or more additional remeasurements should be taken before a final summary of the periodic growth of trees and stands is made. Nevertheless, useful and accurate relationships were developed between stand yield, or volumes per acre, and stand age, site, and stocking; and this information is presented in this paper. Yield tables based on the plot data from New Hampshire, using stand height in place of age and site index, have been published by Barrett and Allen (1966).S3.
Download or read book Forest Hydrology written by Devendra Amatya and published by CABI. This book was released on 2016-09-14 with total page 309 pages. Available in PDF, EPUB and Kindle. Book excerpt: Forests cover approximately 26% of the world's land surface area and represent a distinct biotic community. They interact with water and soil in a variety of ways, providing canopy surfaces which trap precipitation and allow evaporation back into the atmosphere, thus regulating how much water reaches the forest floor as through fall, as well as pull water from the soil for transpiration. The discipline "forest hydrology" has been developed throughout the 20th century. During that time human intervention in natural landscapes has increased, and land use and management practices have intensified. The book will be useful for graduate students, professionals, land managers, practitioners, and researchers with a good understanding of the basic principles of hydrology and hydrologic processes.
Download or read book Evaluation of Several Methods of Applying Sewage Effluent to Forested Soils in the Winter written by Alfred Ray Harris and published by . This book was released on 1978 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications Cumulative Index written by United States. Superintendent of Documents and published by . This book was released on 1976 with total page 1466 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book River Ecology and Management written by Robert Naiman and published by Springer Science & Business Media. This book was released on 2001-02-16 with total page 734 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the vast expanses of natural forests and the great populations of salmonids are harvested to support a rapidly expanding human population, the need to understand streams as ecological systems and to manage them effectively becomes increasingly urgent. The unfortunate legacy of such natural resource exploitation is well documented. For several decades the Pacific coastal ecoregion of North America has served as a natural laboratory for scientific and managerial advancements in stream ecology, and much has been learned about how to better integrate ecological processes and characteristics with a human-dominated environment. These in sightful but hard-learned ecological and social lessons are the subject of this book. Integrating land and rivers as interactive components of ecosystems and watersheds has provided the ecological sciences with impor tant theoretical foundations. Even though scientific disciplines have begun to integrate land-based processes with streams and rivers, the institutions and processes charged with managing these systems have not done so successfully. As a result, many of the watersheds of the Pacific coastal ecoregion no longer support natural settings for environmental processes or the valuable natural resources those processes create. An important role for scientists, educators, and decision makers is to make the integration between ecology and con sumptive uses more widely understood, as well as useful for effective management.
Download or read book The Laurel Hill Study written by John Clark and published by William Curry. This book was released on 1975 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt:
