---
title: "Resource utilization vs conservation: hydropower"
subject: "Technology, Environment and Society"
chapter: 4
key: "semester_7/technology_environment_and_society:resource-use-vs-conservation"
source: https://www.bctengineer.com/q/semester_7/technology_environment_and_society/resource-use-vs-conservation
site: BCT Engineering
---

# Resource utilization vs conservation: hydropower

Technology, Environment and Society · Chapter 4: Environment

- Asked in: 2083 Bhadra, 4 marks
- Answer checked by Claude Opus 5.5 (high effort) on 2026-10-14
- Page: https://www.bctengineer.com/q/semester_7/technology_environment_and_society/resource-use-vs-conservation
- Whole chapter: https://www.bctengineer.com/md/semester_7/technology_environment_and_society/chapter-4

## Question

There is a direct conflict between natural resource utilization and ecological conservation. Use a scenario of development of a major hydropower project to analyze how an engineer should solve this problem.

## Short answer

An engineer resolves the hydropower conflict by conducting an EIA, ensuring environmental flow release, installing fish ladders, compensating forest loss, fairly resettling affected people, and establishing benefit-sharing and monitoring, thus balancing energy production with ecological conservation.

## Answer

Developing a resource (e.g. a river for hydropower) gives energy and income, but it can damage the river ecosystem, forests and local people's livelihood. The engineer's job is to find a **balanced, sustainable** solution, not to choose one side.

**Scenario (assumed):** a 600 MW storage hydropower project on a hill river in Nepal: dam and reservoir flood about 2,000 ha including community forest and farmland, displace 500 households, block fish migration (e.g. asala, mahseer) and reduce downstream flow.

#### How the engineer should solve it

1. **Option and site study** – compare alternative sites, dam heights and run-of-river vs storage; choose the one with least ecological and social loss per MW.
2. **EIA and public hearing** – carry out a full Environmental Impact Assessment as per the Environment Protection Act, 2076; involve local people, experts and the forest office.
3. **Mitigation hierarchy** – *avoid* (avoid protected areas, shift alignment), *minimise* (lower dam height, smaller roads), *restore*, then *offset*.
4. **Environmental flow** – release a minimum flow (in Nepal, generally at least 10% of the minimum monthly average flow, or as set by the EIA) to keep the river alive; build fish ladders or hatcheries.
5. **Forest compensation** – plant trees for those cut (as per forest rules), protect the catchment to reduce sedimentation.
6. **Fair resettlement** – compensation, land-for-land, skills training, local jobs and **local share investment** (e.g. 10% shares for affected people).
7. **Benefit sharing** – royalty to local governments, rural electrification, roads, schools and health posts.
8. **Monitoring** – environmental management plan with regular monitoring of water quality, fish and slope stability.

```text
 Resource use  <---- balance ---->  Conservation
 (power, jobs)    EIA, e-flow,     (river, forest,
                  fish ladder,      fish, people)
                  benefit sharing
```

Thus, with careful design and community participation, the project can produce clean energy while protecting the ecology, achieving sustainable development.

## Check yourself

The answer's key points as multiple-choice questions, with the correct option and why.

1. What should the engineer aim for in the conflict between resource use and conservation?
   A. Choose development only
   B. Choose conservation only
   C. A balanced, sustainable solution
   D. Delay the project forever
   Answer: C. The engineer finds a balanced solution rather than choosing one side. (Key point: Engineer's role)

2. What is the order of the mitigation hierarchy?
   A. Offset, restore, minimise, avoid
   B. Avoid, minimise, restore, offset
   C. Minimise, offset, avoid, restore
   D. Restore, avoid, offset, minimise
   Answer: B. First avoid, then minimise, restore, and finally offset. (Key point: Mitigation hierarchy)

3. Why release an environmental flow downstream?
   A. To produce more power
   B. To keep the river alive and support fish and ecosystem
   C. To fill the reservoir
   D. To avoid EIA
   Answer: B. A minimum flow keeps the river ecosystem alive. (Key point: Environmental flow)

## Related in Technology, Environment and Society

- [Optimum utilization of natural resources](https://www.bctengineer.com/question.md?key=semester_7%2Ftechnology_environment_and_society%3Aoptimum-utilization-resources) — Technology, Environment and Society, chapter 4
- [Conservation of environment without hindering development](https://www.bctengineer.com/question.md?key=semester_7%2Ftechnology_environment_and_society%3Aconservation-without-hindering) — Technology, Environment and Society, chapter 4
- [Conflict of resources and ecology](https://www.bctengineer.com/question.md?key=semester_7%2Ftechnology_environment_and_society%3Aconflict-of-resources-ecosystem) — Technology, Environment and Society, chapter 4
- [Ecosystem, interventions, conservation and preservation](https://www.bctengineer.com/question.md?key=semester_7%2Ftechnology_environment_and_society%3Aecosystem-conservation-preservation) — Technology, Environment and Society, chapter 4
- [Community, management, empowerment and engineer's role](https://www.bctengineer.com/question.md?key=semester_7%2Ftechnology_environment_and_society%3Acommunity-empowerment-engineer) — Technology, Environment and Society, chapter 2
- [LEP, approaches and engineer's role in community](https://www.bctengineer.com/question.md?key=semester_7%2Ftechnology_environment_and_society%3Alep-engineer-community-development) — Technology, Environment and Society, chapter 2

## Related in other subjects

- [Natural resource management approaches and sustainability](https://www.bctengineer.com/question.md?key=semester_6%2Fenergy_resources%3Aenvironment-development-society-resource-management) — Energy Resources, chapter 8
- [Appraisal aspects of a hydropower project](https://www.bctengineer.com/question.md?key=semester_7%2Fproject_engineering%3Aappraisal-aspects-hydropower) — Project Engineering, chapter 2, asked 4×
- [Stages of hydropower project study](https://www.bctengineer.com/question.md?key=semester_6%2Fhydro_power%3Ahydropower-study-stages) — Hydro Power, chapter 3, asked 3×
- [High dam hydropower project components](https://www.bctengineer.com/question.md?key=semester_8%2Fpower_plant_design%3Ahigh-dam-components) — Power Plant Design, chapter 3