Soils
Their formation, properties, composition, and relations to climate and plant growth in the humid and arid regionsBy Eugene W. Hilgard
Length20h 13m
About this audiobook
Eugene W. Hilgard's "Soils" stands as a seminal text in the field of soil science, offering a comprehensive examination of the complex interplay between soil formation, composition, and ecology. Written in an accessible yet academically rigorous style, Hilgard adeptly navigates the intricate processes of soil development while situating them within the broader context of natural science and agriculture. His analytical approach is paired with vivid descriptions and illustrations that enhance the reader's understanding of soil as a critical component of the Earth's biosphere. Hilgard, often referred to as the "Father of Soil Science," brought to the text a wealth of experience from his extensive work in agronomy and geology. His passion for understanding the natural world was cultivated at a time when soil science was emerging as a distinct discipline. Drawing from practical field studies and scientific observation, Hilgard's scholarship reflects a dedication to improving agricultural practices and addressing the environmental challenges of his era. This book is recommended for scholars, practitioners, and students alike, serving as an essential reference for those invested in agricultural science, environmental studies, or ecology. Hilgard's "Soils" is not only a foundational text that offers vital insights into soil health and sustainability, but it also inspires a deeper appreciation for the intricate systems that sustain life on Earth.
Audiobook details
GenreScience and Nature
Length20 hrs 13 mins
Narrated byListen with 1,000+ voices
FormateBook with Audio
Publish dateMar 2, 2025
LanguageEnglish
Table of contents
1Introduction
41WINDS.
2PREFACE.
42INFLUENCE OF TOPOGRAPHY.
3INTRODUCTION.
43CHAPTER XVII. RELATIONS OF SOILS AND PLANT GROWTH TO HEAT.
4CLASSIFICATION OF SOILS.
44HISTORICAL REVIEW OF SOIL INVESTIGATION.
5Chemical Disintegration, or Decomposition.
45Change of Views.
Show all chaptersShow less
6Action of Plants and their Remnants in Soil Formation.
46PHYSICAL AND CHEMICAL CONDITIONS OF PLANT GROWTH.
7INFLUENCE OF RAINFALL ON SOIL FORMATION; LEACHING OF THE LAND.
47THE SOLVENT ACTION OF WATER UPON SOILS.
8SILICATE MINERALS.
48ASCERTAINMENT OF THE IMMEDIATE PLANT-FOOD REQUIREMENTS OF CULTIVATED SOILS BY PHYSIOLOGICAL TESTS. PHYSIOLOGICAL SOIL-ANALYSIS.
9CALCITE AND LIMESTONES.
49CHEMICAL TESTS OF IMMEDIATE PRODUCTIVENESS.
10GENERAL CLASSIFICATION OF ROCKS.
50LIMITS OF ADEQUACY OF THE SEVERAL PLANT-FOODS IN VIRGIN SOILS.
11Generalities regarding the Soils derived from various Rocks.
51INFLUENCE OF LIME UPON SOIL FERTILITY.
12“Colloidal” Clay.[17]
52DISCUSSION OF THE TABLE.
13(A.) MINERALS USED AS FERTILIZERS.
53The “Insoluble Residue.”
14(B.) MINERALS UNESSENTIAL OR INJURIOUS TO SOILS.
54Insoluble and Soluble Silica and Alumina.
15Clay as a Soil Ingredient.
55SOILS OF THE TROPICS.
16Rock Powder; Sand, Silt and Dust.
56SOILS OF SAMOA AND KAMERUN.
17WEATHERING IN HUMID AND ARID REGIONS.
57THE SOILS OF MADAGASCAR.
18PHYSICAL ANALYSIS OF SOILS.
58THE SOILS OF INDIA.
19CHAPTER VII. THE DENSITY AND VOLUME-WEIGHT OF SOILS.
59INFLUENCE OF ARIDITY UPON CIVILIZATION.
20CAUSES AND PROCESS OF DIFFERENTIATION. HUMUS.
60COMPOSITION AND QUANTITY OF ALKALI SALTS.
21THE ORGANIC AND ORGANIZED CONSTITUENTS OF SOILS.
61TOLERANCE OF VARIOUS CROP PLANTS.
22MICRO-ORGANISMS OF THE SOIL.
62Saltbushes, and Herbaceous Crops.
23DISTRIBUTION OF THE HUMUS WITHIN THE SURFACE SOIL.
63Tolerance of Shrubs and Trees.
24CHAPTER X. SOIL AND SUBSOIL (Continued)
64Deciduous Orchard Trees.
25HYGROSCOPIC WATER.
65Timber and Shade Trees.
26Capillary Water.
66INDUCEMENTS TOWARD THE RECLAMATION OF ALKALI LANDS.
27SURFACE, HYDROSTATIC AND GROUND WATER; PERCOLATION.
67NATURAL VEGETATION THE BASIS OF AGRICULTURAL LAND VALUES IN THE UNITED STATES.[184]
28ABSORPTION AND MOVEMENTS OF WATER IN SOILS.
68INVESTIGATION OF CAUSES GOVERNING THE DISTRIBUTION OF NATIVE VEGETATION.
29METHODS OF IRRIGATION.[89]
69VEGETATIVE BELTS IN NORTHERN MISSISSIPPI.
30QUALITY OF THE IRRIGATION WATER.
70SOIL BELTS IN SOUTHERN MISSISSIPPI.
31EVAPORATION.
71DIFFERENCES IN THE FORM AND DEVELOPMENT OF TREES.[188]
32EVAPORATION THROUGH THE ROOTS AND LEAVES OF PLANTS.
72EUROPEAN OBSERVATIONS AND VIEWS ON PLANT DISTRIBUTION AND ITS CONTROLLING CAUSES.
33DISTRIBUTION OF MOISTURE IN THE SOIL AS AFFECTED BY VEGETATION.
73Calciphile, Calcifuge and Silicophile plants.
34ABSORPTION OF SOLIDS FROM THEIR SOLUTIONS.
74THE VEGETATION OF ALKALI LANDS.
35ABSORPTION, OR CONDENSATION, OF GASES BY SOILS.
75RECLAIMABLE AND IRRECLAIMABLE ALKALI LANDS AS DISTINGUISHED BY THEIR NATURAL VEGETATION.
36THE COMPOSITION OF GASES ABSORBED FROM THE ATMOSPHERE BY VARIOUS SOLIDS.
76APPENDIX A.
37THE AIR OF SOILS.
77APPENDIX B.
38CHAPTER XV. THE COLORS OF SOILS.
78APPENDIX C.
39TEMPERATURE.
79INDEX.
40RAINFALL.
80AUTHORS REFERRED TO.
Life On Earth 40th Anniversary EditionSir David Attenborough12h 27m$29 · $0.00
BeyondStephen Walker15h 39m$33 · $0.00
A Brief History of IntelligenceMax S. Bennett12h 18m$29 · $0.00
The Collected Works of John MuirJohn Muir96h 8m$2 · $0.00
LiftoffEric Berger9h 4m$29 · $0.00
Distant SkiesMelissa A. Priblo Chapman12h 39m$23
ApolloCharles Murray, Catherine Bly Cox18h 15m$30
The Story of BirdsSteve Brusatte11h 49m$29 · $0.00
Black Earth WisdomLeah Penniman11h 54m$8 · $0.00
Crystals for BeginnersKaren Frazier3h 49m$20
What If? 10th Anniversary EditionRandall Munroe7h 29m$23
Nikola Tesla - Ultimate Collection: 70+ Scientific Works, Lectures & EssaysNikola Tesla48h 43m$2 · $0.00
Total Cat MojoJackson Galaxy10h 13m$23 · $0.00
Earth at NightNational Aeronautics and Space Administration2h 31m$1 · $0.00
My Life Among the UnderdogsTia Torres5h 51m$24 · $0.00
What It Takes to Save a LifeKwane Stewart6h$24 · $0.00
Pastoral SongJames Rebanks8h 35m$26 · $0.00
How Stella Learned to TalkChristina Hunger7h$24 · $0.00
Craig & FredCraig Grossi8h 6m$26 · $0.00
Celebrating BirdsNatalia Rojas, Ana Maria Martinez6h 47m$24 · $0.00
You may also like
Earth and LifeAndrew H. Knoll8h 11m$30 · $0.00
About Orchids: A ChatFrederick Boyle5h 20m$2 · $0.00
Blackboard SketchingFrederick Whitney51m$2.30
The Diatomaceæ of Philadelphia and VicinityCharles S. Boyer9h 11m$1 · $0.00
A Mechanico-Physiological Theory of Organic EvolutionCarl Nägeli2h 33m$2 · $0.00
Tunneling: A Practical TreatiseCharles Prelini$2 · $0.00
Quadrupeds, What They Are and Where Found: A Book of Zoology for BoysMayne Reid5h 46m$1 · $0.00
Learn Beekeeping for Beginners - From Beekeeping to Honey: How to Easily Learn the Basics of Beekeeping, Keep Bees and Produce Your Own Honey in No Time at AllSabine Graß3h 45m$18 · $0.00
How We Are Fed: A Geographical ReaderJames Franklin Chamberlain2h 27m$2 · $0.00
Handwork in WoodWilliam Noyes6h 46m$1 · $0.00
Pearse's Commercial Directory to Swansea and the Neighbourhood, for 1854Ebenezer Pearse3h 44m$1 · $0.00
British Museum (Natural History) General GuideBritish Museum3h 21m$1 · $0.00
Textile Traditions: 3 Classic Books on Fabric Art and DesignWillard M. Smith, Kate Heintz Watson16h 48m$2 · $0.00
The World of Pigeons: 3 Classic Books on Raising and BreedingJohn S. Trecartin, John H. Robinson, Carl Dare11h 50m$2 · $0.00
Fragments of Earth Lore: Sketches & Addresses Geological and GeographicalJames Geikie16h 25m$2 · $0.00
The Botanist's Repository for New and Rare Plants Vol 1& 2Henry Cranke Andrews8h 4m$2.30
An Introduction to the Birds of PennsylvaniaGeorge Miksch Sutton7h 34m$2.30
The Elements of Botany, For Beginners and For SchoolsAsa Gray$2 · $0.00
The Story Of The Universe Volume 2 (of 4) : The Earth, Land and SeaEsther Singleton12h 49m$2.40
On the various forces of nature and their relations to each otherMichael Faraday3h 24m$2 · $0.00