CAB/LEG/24.1 Page 4 (ii) (iii) (b) within which the hunting, killing or capture of fauna shall be prohibited except by or under the direction or control of the reserve authorities; (c) where settlement and other human activities shall be controlled or prohibited. “partial reserve” or “sanctuary” which shall denote an area (a) set aside to protect characteristic wildlife and especially bird communities, or to protect particularly threatened animal or plant species and especially those listed in the Annex to this Convention, together with the biotopes essential for their survival; (b) in which all other interests and activities shall be subordinated to this end. “soil” “water” or “forest” reserve shall denote areas set aside to protect such resources. Article IV Soil The contracting States shall take effective measures for conservation and improvement of the soil and shall in particular combat erosion and misuse of the soil. To this end: (a) they shall establish land-use plans based on scientific investigations (ecological, pedological, economic, and sociological) and, in particular, classification of land-use capability; (b) they shall, when implementing agricultural practices and agrarian reforms, (1) improve soil conservation and introduce improved farming methods, which ensure long-term productivity of the land; (2) control erosion caused by various forms of land-use which may lead to loss of vegetation cover.