Sulak Alanlarin Korunmasi : Güncel Konular ve Gerekli çalismalar Üzerine Bir Inceleme
1990
Dugan, Patrick |
There is today a growing awareness that many wetlands are more valuable in their natural, or only slightly modified state, than if drained, dyked or built upon. Past neglect of wetlands has meant that there is insufficient material available on policy guidance, planning techniques, or management methodologies for their conservation and sustainable use in different regions.