Back تعاقب أولي Arabic جانشینی اولیه Persian Siksesyon primè HT Առաջնային սուկցեսսիա Armenian Ecese Portuguese Первичная сукцессия Russian Primärsuccession Swedish การเปลี่ยนแปลงแทนที่ขั้นปฐมภูมิ Thai Первинна сукцесія Ukrainian 原生演替 Chinese

Primary succession

Primary succession occurring over time. The soil depths increase with respect to the increase in decomposition of organic matter, and there is a gradual increase of species diversity in the ecosystem. The labels I-VII represent the different stages of primary succession. I-bare rocks, II-pioneers (mosses, lichen, algae, fungi), III-annual herbaceous plants, IV-perennial herbaceous plants and grasses, V-shrubs, VI-shade intolerant trees, VII-shade tolerant trees.
Primary succession on Rangitoto Island, New Zealand

Primary succession is the beginning step of ecological succession after an extreme disturbance, which usually occurs in an environment devoid of vegetation and other organisms. These environments are typically lacking in soil, as disturbances like lava flow or retreating glaciers scour the environment clear of nutrients.

In contrast, secondary succession occurs on substrates that previously supported vegetation before an ecological disturbance. This occurs when smaller disturbances like floods, hurricanes, tornadoes, and fires destroy only the local plant life and leave soil nutrients for immediate establishment by intermediate community species.[1]

  1. ^ Baldocchi, Dennis. "Ecosystem Succession: Who/What is Where and When" (PDF). Biomet Lab, University of Ohio, Berkeley. Retrieved 9 December 2015.

Rich TVX News Network Site

Rich TVX News Network Info

© MMXXIII Rich X Search. We shall prevail. All rights reserved. Rich X Search