0364 Wadsworth , F.H. Techniques for surveys and the ecological exploitation of tropical forests . Anais da Academia Brasileira de Ciencias ( Brasil ) . ( 1969 ) . v . 41 ( supl . ) p . 101-109 . 1 tab . 11 ref . Sum .

01947 01563 02325 00803 SURVEY INSTRUCTIONS 6. = SURVEY METHODS AND FOREST INDUSTRY PRE - INVESTMENT O SURVEYS IN SURVEY METHODS FROM THE STANDPOINT OF O EFFECTIVE RANGE MANAGEM 01466 SURVEY METHODS OF TROPICAL FORESTS 0.

Throughout the colony's history economic circunstances had favoured forest exploitation to the neglect of agricultural ... the evolution in survey methods from the first rapid reconnaissances to the more elaborate ecological surveys now ...

In 1950 very few land holders had shown any interest in adopting the methods demonstrated on this fazenda , but by 1956 some 1500 ... Up to now Brazilian agriculture has , in the main , been applied to the semideciduous forest .

The company is guided by the principle that the best way to save the tropical rainforest is by managing it in a sustainable ... The first arises from the fact that it is not possible to exploit the forest beyond its growth rate or to ...

The reports cover such subjects as improving predictions of volcanic eruptions , better methods of identifying and delineating ... a lowland tropical rain forest at La Selva , Costa Rica ; the Luquillo experimental forest in Puerto Rico ...