PPT-Lecture 7: Trees & Forests

Econ 404 Jacob LaRiviere Guest Lecture Brian Quistorff May 10 2017 Agenda Review CART CrossValidation How apply to heterogeneity Problems Causal Tree Random Forests Tree Benefits Intuition. Patrycja Gajo. kl. VIa. What is deforestation?. Deforestation. . is. . destruction. of . trees. By men. By NATURE. Why. do . people. . destroy. . forests. ?. . There. . are. a lot of . causes. Please Do Now: Why are migrations so common in the open ocean?. Why are population densities so low in desert biomes?. Agenda. Do Now. Reminders. Temperate Forest Notes. Forest Biomes. Temperate Forests. Canada’s Forests. Lumber. Clean air. habitat. Food. Hiking. Paper. recreation. Task: Brainstorm different uses for forests. So….why are trees important to Canada?. Economic. Social. Environmental. We as . humans, . can either . enhance. or . threaten. the trees and forests based on what we choose to do. . For example: . Humans…. P. lanting . new trees to replace the dead or cut down . trees. forest – an . inseparable part of the European Green Treasure. ”. . There are nearly 4 million hectares of forests in Bulgaria, which represent 34% of our territory. . Our forests are on average 49 years old. Nearly 55% of them are young, 30% are 40 – 80 years old and centuries – old forests are 9.2%.. by themselves. or we . destroy them. ?. Our team is:. Anthi. . Vafeiadi. Elina. . Tsakalaki. Ios. . Partheniou. Filio. . Soulioti. Dimitris. . Koronaios. Forest fires naturally caused. A forest fire can begin by several natural factors.. 2. From yesterday’s video, how has the technology changed with forestry?. What has been the impact of these technological changes? Good/bad explain.. Quick HW pg. 49 Review. History of Forests. A. Indiscriminant cutting. How did they form?. Research by:. . Harold Coffin, PhD . Arthur Chadwick, PhD. Collaborators from Geoscience Research Institute and Loma Linda University. Introduction:. In the 1970’s the Yellowstone fossil forests were being argued. Geography. Can be found between 30 . - . 55 . ° latitude. Most lie between 40 degrees and 50 degrees latitude. Originally covered. In Asia, much of Japan, eastern China, Korea, and eastern Siberia. In western Europe, extended from southern Scandinavia to northwestern Iberia and from the British Isles through eastern Europe. Heatherly. Salyer. Period 3. APES. Locations. Coniferous forests are found mostly in Canada, and Asia. However, they are also commonly found in the US, and Europe.. Northern boreal forests, a type of coniferous forest, are typically found between 50 and 60 degrees North latitudes. Natural Vegetation The grasses, shrubs and trees, which grow on their own without interference or help from human beings are called natural vegetation. Different types of natural vegetation are dependent on different climatic conditions, among which the amount of rainfall is very important. kl. VIa. What is deforestation?. Deforestation. . is. . destruction. of . trees. By men. By NATURE. Why. do . people. . destroy. . forests. ?. . There. . are. a lot of . causes. , . but . the. Tropical . Rain Forest. The . equatorial or tropical broadleaf evergreen rainforest is mainly found in S. America, central Africa and the equatorial west coast of Africa, west coast of India, Burma, Malaysia, Indo-China Indonesia, Philippines, and Papua New Guinea. natural resources.. Nature has gifted us with lots of good things such as;. Types of Natural Resources. Types of Natural Resources. Watch video here – Click Link. Forest Resources and its Conservation.