envi lecture8[2]

Environmental EconomicsLecture 8 (Biological diversity)

The variety of organisms considered at all levels, from genetic variants belonging to the same species through arrays of species to array of genera,family, and still higher taxonomic levels;includes the variety of ecosystems, which comprise both the communities of organisms within particular habitats and the physical conditions under which they lives (Wilson,1992 ,2538)

(Species diversity)

2. (Genetic diversity)

3. (Ecological diversity)

(Species diversity) 2 1.1.(Species richness) 1.2 (Species evenness) 2 4 A B C D 1 25 % 2 70% A B C D 10%

(Species diversity)(2) 1.7 12 950,000

(Genetic diversity)

(Ecological diversity) (habitat)

:

1. 4 (Croton sublyratus) Plaunotol Kelnac Kelnac 2.

: 2538 39

(use value) (non-use value) 1. (Use Value)1.1. (direct use value)

(2)1.2. (indirect use value) 1.3. (option value)

(3)2. (Non-use Value)2.1 (bequest value) 2.2 (existence value)

1.) - (Mutation) -

(2)2.)

(3)3.)

- - -

(2)- 2535- 1.) 2.) 3.)

--- (Global Environmental Facility:GEF)

1. .2538 13 2538

2. .2538

3. http://www.swu.ac.th/royal/book2/index.html