The importance of Uromie Lake National park and Biosphere Reserve associated with is known worldwide and thus, maintaining its optimized well-being and values are on the priority list of preserving, rehabilitation and ecologic management programs. Plants, as primary producers of the greater Uromie Lake ecosystem, despite their greater diversity have covered much lesser areas primarily becaus...

wetlands in the lower reaches of songhua river (lrsr), northeast china, are rich in biodiversityand natural resources, which provide crucial staging and wintering habitats for various endangered species.however, in the past five decades, the size of this wetland area has decreased, and its quality has deteriorated because of increased natural and human activities. wetland restoration is critica...

economic value of natural resources is increased via tourism resources function. natural environment in the desert area has great potential for attracting tourists and in this respect it has a nonmarketable value. making these values marketable may lead to rise up the economic value of natural environment in the desert area. one of the most important natural environments in the desert areas of ...