 The main human activity in this part of the delta is the exploitation of the willow forest for commercial purposes, and human impact is low.The region has suffered from a loss of human population and today there are only 3,600 inhabitants living there (2001).The establishment of the Biosphere Reserve aims at revitalizing the economy of the region at the same time as conserving the natural and cultural values of the area and support the investigation and study of the ecosystem with the possibilities of national and international investment in projects of sustainable growth and the grouping of the region in reference of organic cultivation and varied ways of land-forest production with certification of ecological quality.