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Table 4 Diagnosis criteria and indicators to evaluate sustainability in the systems of natural resources management analyzed

From: Use of columnar cacti in the Tehuacán Valley, Mexico: perspectives for sustainable management of non-timber forest products

System attribute Critical points Diagnosis criteria Indicators
Productivity Low productivity Efficiency Yield
Low rentability Cost/benefit relation
Demand of labour hand
Equity Low differentiated access level Equity in access to the systems Differential access to resources
Stability Biological diversity Diversity Species richness
Shannon diversity index
Risk Inter-annual rainfall variation Variation in maize production
System stability Maintenance of biotic interactions Impact on biotic interactions
Adaptability Adoption of new systems Capacity of technical innovation Acceptance of the system
Autonomy Dependence from outside Self-sufficiency Degree of inputs dependence
  1. Based on the “framework for sustainability evaluation of natural resources management systems”, MESMIS [37]. Yield of the scenarios analyzed corresponds to the amount of fruits per hectare according to the percentage of fruit of each species collected in each vegetation type. The relation cost/benefit was calculated in terms of the amount of fruit and monetary incomes generated in each scenario. Labour hand demanded was calculated in terms of hours per person based on real actual observations of time invested in gathering. Differential access to resources was estimated in terms of rights and permits differently asked from local authorities to ejidatarios and comuneros. Information on biological diversity based on vegetation sampling in both forests and maize fields. Information on variation in maize production based on interviews to local people. Impact on biotic interactions is a qualitative estimation of the impact of harvesting fruits on frugivorous and granivorous species of the biotic community.