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At a time when threats to the marine environment have never seemed greater, the importance of marine biological diversity and its conservation have never been more clear. While the traditional measure...
In the twentieth century many fens in The Netherlands were reclaimed for agriculture. The few fens left have a large biodiversity, which make them valuable nature reserves. Land use influences largel...
A subsurface dam is a facility that stores groundwater in the pores of strata and uses groundwater in a sustainable way. These dams have many merits that surface dams do not, e.g., land is not submerg...
Precipitation is one of the most important factors which can determine the type and productivity of rangeland vegetation in arid and semi arid regions. In the present study, a widely used drought anal...
Learned societies, their international co-operation, and sustainable use of minerals promote development of human society This issue of the Estonian Journal of Earth Sciences is published...
Estonia is rich in peatlands, which cover 22.3% of its territory. About 1/4 of them are under protection, ~ 2% have been assigned for peat production, and ~ 1% is abandoned. Several peatlands are drai...
Current Major Activities on the Conservation and Sustainable Use of Biological Diversity。
In this paper,the theory of Muhi-Objective Optimal Sustainable Yield is developed based on the theory of optimal sustainable yield,which makes multiple objectives about biology,environment. economy ...
he International Tropical Timber Organization (ITTO) is an intergovernmental organization promoting the conservation and sustainable management, use and trade of tropical forest resources. Its 60 me...

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