Thursday, December 19, 2013

By Harriett Crosby


Paulownia trees feature amongst the oldest and best trees around the globe. The term tree holds many definitions. Under botany trees are defined as perennial plants with trunks, supporting leaves, and branches. Under special circumstances the definition is narrowed to woody plants or the plants of a predetermined height. Palms, ferns, bamboo, and bananas are included in the wider definition of trees.

Plants have varying lifespan some live up to a thousand years while some are seasonal. They grow to varying heights. The tallest existing tree is believed to be 379 feet, which is equivalent to 115.6 meters. It is assumed that plants can only attain a maximum height of 130 meters or 426 feet. They are among the earliest living things to have existed on the Earth. They are approximated to have been on the Earth 370 million years back.

Vegetation has evolved over time in response to varying climatic conditions and aspects such as competition. The increase in height is a significant feature of evolutionary adaptation. They grow tall as a result of increased competition over sun-light and space. Tall species easily access sunlight rays, which allow them to make food unlike dwarf species. The dwarf species have altered structures for their survival. They twist on taller species so as to access sunlight rays and for support.

Plants grow in big numbers in tropical locations. The tropical has the required growth conditions such as adequate rainfall, fertile soils, and sufficient sunlight. The range of trees is unclear as different species grow in various regions under varying environmental conditions. Botanists are still collecting data and surveying the various species.

A normal tree comprises of many parts such as stem, branches, leaves, and roots. Every part has a unique role that it serves. The trunks or stems support branches. Roots are for support besides absorption of mineral ions from the ground. Leaves make food using sunlight, which is necessary for development of plants.

Plants play a great role in moderating the climate, controlling pollution, and reducing soil erosion. They clear carbon dioxide from the atmosphere through carbon cycle. They hold soil firmly around their roots hence reducing soil erosion. They are a source of fruits and habitat to birds. They are applied as medicine in treatment of many illnesses and diseases. Some serve as shrines and worship places for various communities.

Vegetation is currently threatened by human activities. Individuals are cutting down several plants during opening up of land for farming or cultivation. They are of very important to the surrounding and humans. The need to protect vegetation resulted in creation of worldwide organizations whose major job is to encourage planting of more plants. The world environment day is marked as a reminder to call upon people to protect the environment.

Paulownia trees are grown under the best conditions to increase chances of survival and growth in all types of climate. The tree nurseries in this region are tended to by the best agriculturalists. Professionals in this area conduct enough research to ensure they can adequately deal with all diseases affecting plants. They can be contacted through their websites on the internet.




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