ABSTRACT
The three elements of biodiversity such as taxonomic diversity, ecological diversity, and morphological diversity are linked with each other. Understanding of the integral relationship between species, ecosystems, populations, and genes in the Earth are vital issues and a global concern. Wetland ecosystems of Nepal fall into two broad categories: natural wetlands, comprising of lakes and ponds, riverine floodplains, swamps and marshes; and man-made wetlands, including water reservoirs, ponds, and deep-water paddy fields. Using floristic and phytogeographical data, Stearn divided Nepal into three regions which is equivalent to Karnali, Gandaki, and Koshi of Nepal: Western Nepal; Central Nepal; and eastern Nepal. The maintenance of viable populations of species in their natural habitat is identified as a fundamental requirement for the conservation of biological diversity by the Convention on Biological Diversity (CBD). Nepal tried various conservation approaches to conserve the biodiversity.
