Why, according to the passage compensatory afforestation for Sardar Sarovar Dam project not satisfactory?
The evidence on compensatory afforestation in a big project such as the Sardar Sarovar Dam, for instance, is not encouraging. About 13,000 hectares were compensated there, but only with patchy outcomes: healthy monoculture plantations having low biodiversity value came up in some places, while others resulted in unhealthy plantations with few trees.