Coastal erosion
Coastal erosion is the wearing away and movement of shoreline land by waves, currents, storms, sea level rise, and changes in sediment supply.
Discovery
Explore Qlopedia
Search topics by keyword, scan categories, and jump between core site pages without losing context.
2050 topics available. Showing 1825-1848 on page 77 of 86.
Topics
Riparian buffers
Riparian buffers are vegetated strips beside streams, rivers, lakes, or wetlands that help protect water, stabilize banks, and connect habitats.
Groundwater recharge
Groundwater recharge is the process that moves water from the surface through soil and rock into aquifers, helping refill underground water stores.
River delta
A river delta is a low, often branching landform built where a river drops sediment as it slows near a lake, sea, ocean, or other standing water.
Erosion
Erosion is the movement of soil, rock, or sediment by water, wind, ice, waves, or gravity, reshaping landscapes while also creating risks for land and water.
Stormwater
Stormwater is rain or melting snow that runs off land and hard surfaces, carrying water and pollutants through neighborhoods, pipes, streams, and watersheds.
Estuary
An estuary is a sheltered coastal water body where river water and seawater mix, creating productive habitats shaped by tides, runoff, sediment, and salinity.
Floodplain
A floodplain is the low land beside a river or stream that can spread with water during floods, storing water, sediment, nutrients, and risk.
Watershed
A watershed is the land area where water drains toward a shared outlet, linking hillsides, streets, soils, streams, groundwater, and downstream communities.
Wildfire
Wildfire is an unplanned fire burning through vegetation such as forests, grasslands, shrublands, or peat. Fire can be an important ecological process, but severe or fast-moving wildfires can threaten lives, homes, ecosystems, air quality, water supplies, and infrastructure.
Drought
Drought is a period of unusually dry conditions long enough to create water shortages or ecological stress. It can affect soil moisture, crops, rivers, reservoirs, aquifers, ecosystems, energy, public health, and food systems, and it often develops slowly before impacts become obvious.
Aquifers
Aquifers are underground layers of rock or sediment that store and transmit groundwater in usable amounts. They supply wells, springs, rivers, farms, and cities, but they can be depleted or polluted if pumping, recharge, and land use are not managed carefully.
Urban forests
Urban forests are the trees and wooded green spaces in and around cities. They include street trees, parks, yards, campuses, river corridors, and remnant woodlands, and they can cool neighborhoods, manage stormwater, support wildlife, improve public spaces, and reduce some environmental stresses.
Pollinators
Pollinators are animals that move pollen between flowers, helping many plants make seeds and fruit. Bees, butterflies, moths, flies, beetles, birds, bats, and other animals support wild ecosystems, farms, gardens, and much of the food people enjoy.
Invasive species
Invasive species are nonnative organisms that spread and can harm ecosystems, economies, or human health. They may be plants, animals, fungi, microbes, parasites, or diseases, and they often become difficult to control once established.
Habitat fragmentation
Habitat fragmentation happens when continuous habitat is broken into smaller, more isolated patches. It can limit movement, shrink populations, increase edge effects, reduce genetic exchange, and make species more vulnerable unless landscapes keep enough connected habitat.
Wetlands
Wetlands are places where water shapes the soil, plants, and animal life. They may be wet all year or only seasonally, and they can store floodwater, filter pollutants, recharge groundwater, protect shorelines, support biodiversity, and lock away carbon.
Soil health
Soil health describes how well soil functions as a living ecosystem that supports plants, animals, water, climate, and people. Healthy soil stores and cycles nutrients, holds water, resists erosion, supports roots and microbes, and can make farms and landscapes more resilient.
Ecosystem services
Ecosystem services are the benefits people receive from functioning ecosystems. They include food, fresh water, pollination, flood protection, climate regulation, recreation, cultural meaning, and the ecological processes that keep these benefits available over time.
Biodiversity
Biodiversity is the variety of life, from genetic differences within species to the many species and ecosystems on Earth. It supports food, clean water, medicine, climate resilience, culture, and the ecological processes that make human and nonhuman life possible.
Light pollution
Light pollution is excessive, misdirected, or poorly timed artificial light at night. It can brighten the night sky, create glare, disrupt sleep and wildlife, waste energy, and make it harder to see stars, while better lighting design can reduce many of its effects.
Rain gardens
Rain gardens are shallow planted areas that collect runoff from roofs, streets, driveways, and other hard surfaces. They slow water down, let some of it soak into the ground, and use soil and plants to filter pollutants before the water reaches drains, streams, or lakes.
Yellowstone National Park
Yellowstone National Park is a protected landscape in the western United States, famous for geysers, hot springs, wildlife, volcanic geology, Indigenous history, and the idea that public lands can preserve ecosystems while welcoming visitors.
World War II
World War II was the deadliest and most destructive conflict in modern history. From 1939 to 1945, the Allied and Axis powers fought across continents and oceans, while occupation, genocide, bombing, forced labor, famine, and displacement transformed civilian life. The war ended fascist regimes in Germany, Italy, and Japan, reshaped global power, and left legacies that still shape international law, memory, technology, and politics.
Site Pages
Home
Landing page with quick search and featured learning paths.
Explore
Browse and search all available Qlopedia topic pages.
Categories
See how topics are grouped across fields.
About
What Qlopedia is and how its article model is designed.
Contact
Send feedback, corrections, and topic suggestions.
Privacy
How Qlopedia handles privacy, analytics, and basic site data.
Terms
Site terms for reading, linking, and using Qlopedia content.
Sitemaps
Find the sitemap index and localized sitemap links.