Provide a brief summary differentiating conservation and preservation.

There is not much difference in ordinary usage. Some folks who like to restrict words to their own usage will on conserve emphasize management, and on preserve emphasize protect.

but i need detail on how they are different.....

Conservation of a forest would allow limited lumbering along with replanting.

Preservation of a forest doesn't allow any human interference.

http://wiki.answers.com/Q/What_is_the_difference_between_conservation_and_preservation

Conservation and preservation are two approaches used in environmental management, with each having a distinct focus and goal.

Conservation aims to sustainably manage natural resources for the present and future use, while also considering the needs of human communities. It involves finding a balance between resource utilization and preservation, focusing on the wise use of resources and the protection of habitats and ecosystems. Conservation practices may include sustainable agriculture, responsible forestry, and the establishment of protected areas where natural resources can be used in a controlled manner. The key principle of conservation is the sustainable yield, where resources are used at a rate that allows them to replenish over time.

Preservation, on the other hand, focuses on maintaining the natural environment in its current state, protecting it from any human interference. It emphasizes the protection of pristine and untouched ecosystems, with the primary objective being to safeguard the natural world from degradation and destruction. Preservation practices involve creating nature reserves, national parks, and wilderness areas where human activities are minimal or strictly regulated. The primary principle of preservation is to maintain the ecological integrity of ecosystems and prevent any disturbance to the natural balance.

In summary, conservation is about sustainable resource management, finding a balance between human needs and environmental protection, while preservation is concerned with protecting and maintaining ecosystems in their original state, free from human intervention.