As a medical herbalist specializing in herbs of tropical Asia, I witness daily the health benefits (aside from the obvious food benefits) that the plant kingdom of this region provides us humans. My hobby is to take regular walks into the Malaysian rain forest with its enormous biodiversity of plants species of which only a minute percentage have yet been explored for their therapeutic, medicinal, culinary, aromatic and aesthetic potential. Malaysia has the fourth most biodiversity rich country in the world behind only the much larger countries of China, India and Indonesia. Here we have an almost unlimited opportunity for new useful plant discoveries if this invaluable resource is preserved and researched wisely. Unfortunately, regulations and implementation of virgin forest protection is still lacking and threaten the survival of many unique species of plants and animals.
Our daily lives are filled with contact with products originating from the rain forest. Whether it is the tropical fruits we just ate or the vegetables we had for lunch, as well as the spices used in cooking them, we may be unaware that these are all originated from tropical rain forest plants. Other common products we use that have originated from the world’s rain forests include rubber and palm oil and how would our day be without the daily enjoyment we get from coffee, cocoa and sugar?
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| The Spice Islands, Ribero 1529 |
To better appreciate this fragile rain forest environment and the complex diversity of plant life it supports it helps to picture the distinct layers on which all rain forest life depend and the high rainfall and humidity that allows for life to flourish. The balance of the sensitive ecosystem begins at the forest roof at a height of around 240 feet (that's as high as a 20 story building) where the forest canopy basks in almost constant sunlight and provides a cooling shade from the tropical sun while acting as an umbrella, protecting the lower levels from heavy tropical rainfall. The lower canopy is the richest layer in terms of animal and plant life and most of the mammals that live here are nocturnal.
The understory extends from the forest floor up to about 80 feet. Leaves are often long and pointed, the ends of which form 'drip tips' allowing excess water to run off quickly. Little sunlight filters into the understory which makes it dark and humid. With intense competition for nutrients, understory plants have evolved to take advantage of every available space, from herbs, shrubs and trees to creepers and climbers. Where the only climatic changes between the seasons are from “hot” to “wet," plants take advantage of this environment for rapid growth. It is here where the majority of our medicinal herbs grow, in that area that is teeming with life of all kinds, insects, mammals, birds and so on. The variety of plant life all contribute to the characteristic leaf litter bed, which together with tree roots holds the thin layer of organic matter in place, so as not to be washed away in the tropical downpours. This nutrient-filled soil is only around around 4 inches deep with red clay or sandy soil beneath it. It is in this rich compost leaf litter bed that the decomposition and renewal process occurs that allows for the rapid flow cycle of nutrients through the whole system.
The living things in each of these levels (canopy, understory and leaf litter bed) are interdependent for their existence. If you take out a single player, such as the majestic rain forest tree's with their massive buttressed roots then a cascade effect destroys the entire balance with the washing away of the organic leaf litter bed as evidenced in the brown rivers visible in all unprotected over-logged rain forests. Without organic nutrients the exposed clay soil cannot support the understory plants and the loss of species is permanent. In time, the secondary forest that arises will have considerably less biodiversity than the pristine forest that been essentially unchanged for millions of years. Species of fauna and flora become extinct forever when each hectare of rain forest is destroyed for its land and timber.
Sustainable use of the rain forest means that to safeguard and maintain the rain forest ecosystem, the needs of the present must be met without compromising the needs of future generations. Considering the wealth of products that humanity has derived from the rain forests of the world, it becomes increasingly evident that the tropical rain forests of Malaysia are an irreplaceable treasure house of immense importance to all humanity. While the rain forest provides us with the necessary requirements for our life, the balance must be met whereby profits are not at the expense of the environment. Let us step up our education of the importance of pristine rain forest preservation and the intrinsic value it contains.
“In the end,
we will conserve only what we love,
we will love only what we understand,
we will conserve only what we love,
we will love only what we understand,
we will understand only what we are taught.”


