Foreword |
|
xi | |
Preface |
|
xv | |
|
|
1 | (14) |
|
Dimensions of the problem |
|
|
5 | (7) |
|
History and background of dryland usage |
|
|
|
Current conditions in the drylands |
|
|
|
The future of the drylands |
|
|
|
|
12 | (3) |
|
2 Dryland Characteristics and the Degradation Process |
|
|
15 | (28) |
|
Physical and biological characteristics |
|
|
15 | (9) |
|
|
|
Surface water and groundwater resources |
|
|
|
|
|
|
|
|
|
|
24 | (13) |
|
|
|
|
|
|
|
|
|
Forestry and agroforestry |
|
|
|
|
|
Social and institutional factors |
|
|
37 | (4) |
|
|
|
Institutional and political factors |
|
|
|
|
41 | (2) |
|
3 The Role of Public Policy in Dryland Development and Management |
|
|
43 | (19) |
|
Policies towards the drylands |
|
|
43 | (6) |
|
Diversity of dryland problems |
|
|
|
The case for public assistance |
|
|
|
General policy issues in development planning |
|
|
|
Formulation of policies, programmes and projects |
|
|
|
Economics and the policy process |
|
|
|
Designing appropriate policies |
|
|
49 | (10) |
|
Economic issues in designing remedial action |
|
|
|
Determining the appropriate level of protection |
|
|
|
Desirable characteristics of policies, programmes and projects |
|
|
|
Social, cultural and institutional factors |
|
|
59 | (1) |
|
|
|
|
|
|
60 | (2) |
|
4 General Economic Principles and Techniques of Analysis |
|
|
62 | (20) |
|
Concepts of economic welfare |
|
|
63 | (1) |
|
Measurement of benefits and costs |
|
|
64 | (15) |
|
|
|
|
|
Use rights and resource management systems |
|
|
|
|
|
Breakdown of resource management systems |
|
|
|
Renewable and non-renewable resources |
|
|
|
Irreversible damage to resources |
|
|
|
|
|
Design of an economic analysis |
|
|
79 | (1) |
|
Techniques of economic analysis |
|
|
79 | (1) |
|
|
80 | (2) |
|
5 Managing Drylands as Renewable Economic Resources |
|
|
82 | (27) |
|
Renewable production systems in dryland areas |
|
|
82 | (5) |
|
Sustainable production from dryland ecosystems |
|
|
|
Products of dryland areas |
|
|
|
Economic management objectives |
|
|
|
Degradation: causes and corrective actions |
|
|
87 | (7) |
|
Perspective of the land user |
|
|
|
Externalities and open-access common property resource effects |
|
|
|
Corrective policies and strategies |
|
|
|
Dryland agriculture and forestry |
|
|
94 | (6) |
|
|
|
|
|
Appropriate farm technology |
|
|
|
Soil and water conservation |
|
|
|
|
100 | (6) |
|
Key variables in grazing management |
|
|
|
Handling stochastic conditions |
|
|
|
Computer simulation modelling of dryland grazing systems |
|
|
|
|
106 | (3) |
|
6 Economic Appraisal of Investments in Dryland Programmes and Projects |
|
|
109 | (32) |
|
|
110 | (7) |
|
Social benefit-cost analysis |
|
|
117 | (15) |
|
|
|
Physical boundaries of analysis |
|
|
|
|
|
|
|
|
|
Calculation of net social benefits |
|
|
|
|
|
|
132 | (5) |
|
Choosing a decision criterion |
|
|
|
Cost-effectiveness analysis |
|
|
137 | (2) |
|
|
139 | (2) |
|
7 Valuation of On-Site and Off-Site Effects |
|
|
141 | (22) |
|
Valuation of productivity changes |
|
|
141 | (9) |
|
On-site productivity changes |
|
|
|
Off-site productivity changes |
|
|
|
Effects of production changes on prices, factor markets and consumer's and producer's surplus |
|
|
|
Valuation of other effects |
|
|
150 | (6) |
|
Damage to property and materials |
|
|
|
|
|
|
|
Dealing with intangibles and non-quantifiables |
|
|
|
|
156 | (5) |
|
|
|
|
|
Opportunity-cost approach |
|
|
|
|
|
|
161 | (2) |
|
8 Risk and Uncertainty in Dryland Development and Management |
|
|
163 | (30) |
|
Handling risk and uncertainty |
|
|
163 | (8) |
|
Sources of risk and uncertainty in dryland decision-making |
|
|
|
Definitions of risk and uncertainty |
|
|
|
|
171 | (9) |
|
Applications of risk analysis |
|
|
|
A framework for risk analysis |
|
|
|
Interpretation of results of risk analysis |
|
|
|
Decision-making under conditions of uncertainty |
|
|
180 | (6) |
|
Decisions based on available information |
|
|
|
|
|
Decision analysis techniques |
|
|
|
Uncertainty associated with irreversible damage to resources |
|
|
|
Defensive strategies to cope with risk and uncertainty |
|
|
186 | (5) |
|
Overcoming the effects of risk |
|
|
|
Investment in information |
|
|
|
|
|
Adaptive environmental assessment and management |
|
|
|
Critical zones and safe minimum standards |
|
|
|
|
191 | (2) |
|
9 Models for Dryland Development Planning |
|
|
193 | (31) |
|
General policy issues in dryland development planning |
|
|
193 | (1) |
|
Linear programming models |
|
|
194 | (12) |
|
General properties and applications of linear programming models |
|
|
|
Setting up a linear programming model |
|
|
|
Finding the optimum solution |
|
|
|
Introducing an environmental externality |
|
|
|
Limitations of the linear programming approach |
|
|
|
|
206 | (9) |
|
General properties of input---output models |
|
|
|
Solving an input---output system |
|
|
|
Simulating the effects of new production |
|
|
|
Incorporating consumption expenditure |
|
|
|
Data sources and construction of input---output models |
|
|
|
Application of multipliers to dryland development planning |
|
|
|
Natural-resource accounts |
|
|
215 | (4) |
|
|
|
|
219 | (2) |
|
|
221 | (3) |
|
10 Implementation of Policies, Programmes and Projects |
|
|
224 | (26) |
|
Presenting results to decision-makers |
|
|
225 | (2) |
|
Characteristics of a useful economic analysis |
|
|
|
Important elements of an economic analysis |
|
|
|
Creation of implementation incentives |
|
|
227 | (6) |
|
Direct government expenditure |
|
|
|
Influencing private behaviour |
|
|
|
Characteristics of efficient incentives |
|
|
|
Selecting the appropriate incentives |
|
|
233 | (1) |
|
Constraints on the use of economic incentives |
|
|
|
A checklist of incentive characteristics |
|
|
|
Social and cultural constraints to implementation |
|
|
234 | (2) |
|
Policies on land tenure and use rights |
|
|
236 | (10) |
|
|
|
|
|
Management of programmes and projects |
|
|
246 | (2) |
|
|
|
|
|
|
|
Administrative management |
|
|
|
|
248 | (2) |
|
11 Case Study: Benefit---Cost Analysis of Soil Conservation in Maphutseng, Lesotho |
|
|
250 | (39) |
|
|
|
250 | (4) |
|
The FISC project and the Maphutseng area |
|
|
|
|
254 | (21) |
|
Choice of evaluation criteria |
|
|
|
|
|
Quantification of benefits |
|
|
|
Valuation of costs and benefits in economic prices |
|
|
|
|
|
|
|
|
|
|
|
Uncertainty and sensitivity analysis |
|
|
|
Summary of sensitivity analysis |
|
|
|
Policy implications of the economic analysis |
|
|
|
|
275 | (4) |
|
|
|
|
|
Policy implications of the financial analysis |
|
|
|
|
279 | (1) |
|
List of persons contacted in Lesotho |
|
|
|
|
280 | (6) |
|
|
286 | (3) |
Index |
|
289 | |