Stock

{
  "id": "MLC-T-ENV-026827",
  "term": "Stock",
  "field": "Environment",
  "definition": "1. a term for unprinted paper.\n\n2. A stock variable represents a quantity existing at a point in time, which may have accumulated or been produced in the past. Units of measurement are typically expressed in levels - e.g., wealth (dollars), physical assets (number of machines), and nutrient concentration (milligrams per liter) -- that are present at a specific point in time. Economic goods can be represented as a stock when they are accumulated, stored, or stockpiled-- e.g., the stock of produce in a grocery store's inventory at the beginning of the year. Natural capital is also a stock concept, representing the level wealth embodied within natural systems at a point in time. Context: The distinction between \"stocks\" and \"flows\" is an essential concept for measuring natural capital (which is a stock concept) and the contributions of natural capital to human well-being (which is a flow concept).",
  "subject": "Ecosystems",
  "references": [
    "Communications Stylebook Glossary",
    "National Ecosystem Classification System (NESCS) Plus Glossary"
  ],
  "url": "https://mlchart.com/terminology/environment/stock/"
}