By David Carle
Following his acclaimed publications to air, fireplace, and water, David Carle now bargains a desirable exploration of 1 extra fundamental section of the ordinary world—the land underneath our ft. From earthworms and earthquakes to Earth Day, this concise, enticing consultant is a multifaceted primer at the literal starting place of California’s surroundings. Carle tells how soil ecosystems functionality, discusses what lives within the soil, and examines a number of soil varieties. He then turns to the connection among people and the land, and investigates a number of the makes use of and abuses that land in California endures: huge scale agriculture, mining, and improvement, in addition to fires, floods, and erosion. The consultant additionally info the historical past of land use within the country, making it an important source for realizing our overall reliance on soil, the wonderful substrate that's the foundation of life.
- Covers the full nation, together with California’s wildlands, farmland, towns, and landfills
- Assesses California’s ecological footprint on planet Earth
- Discusses many various existence varieties present in soil, together with micro organism, fungi, bugs, and mammals
- Features ninety two colour pictures and 18 maps
A ebook within the Californians and Their Environment subseries, devoted to figuring out human affects at the state's ecology and usual assets.
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Extra info for Introduction to Earth, Soil, and Land in California (California Natural History Guides, Volume 101)
Atmospheric carbon enters land ecosystems when carbon dioxide is captured through photosynthesis by green plants or cyanobacteria (fig. 4). Photosynthesis (literally, “making with light”) uses solar energy to transform carbon dioxide and water into glucose, which is used by plants to build complex carbon molecules. Oxygen gas is released into the atmosphere during photosynthesis. This reaction is summarized as: carbon dioxide 1 water 1 sunlight (energy) → sugars 1 oxygen. Aerobic respiration reverses the equation: it breaks apart complex carbon molecules in the presence of oxygen and releases carbon dioxide, water, and energy.
A grid of mutually beneficial connections between trees and neighboring plants that gives the concept of “plant communities” new meaning. Fungi that surround and attach to the outside of a root are called “ectomycorrhizal” and are commonly associated with forest trees. Examples are Boletus, Aminita, truffles, portobellos, and the common white button mushrooms sold in grocery stores. ” They penetrate the roots but also extend long hyphae threads into the soil. The health of all coniferous trees and of California’s oak trees depends on symbiotic relationships with mycorrhizal fungi (pl.
1948). e c o s y s t e m s b e n e at h o u r f e e t 29 Decomposers, Partners, and Parasites Bacteria Bacteria perform many tasks besides nitrogen fixation in soil ecosystems. Some species of these microscopic singlecelled organisms make other essential elements available to plants, including sulfur, phosphorus, potassium, magnesium, calcium, and iron. Other species manufacture and release hormones that stimulate root growth. Bacteria protect plants by exuding a slime that can trap disease-causing microbes.
Introduction to Earth, Soil, and Land in California (California Natural History Guides, Volume 101) by David Carle