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GB/T 46336.1-2025 Active
GB/T 46336.1-2025 Guidelines for rivers and lakes happiness evaluation—Part 1:Rivers with a watershed area of 3 000 km2 or less
Abstract
This document establishes an evaluation index system for happy rivers and lakes, stipulates the rules for calculating the happiness index of rivers and lakes, describes the rules for generating evaluation results, and provides requirements for preparing evaluation reports.
This document is applicable to the evaluation of happy rivers and lakes in rivers that flow through towns (streets) and have a basin area of less than or equal to 3,000 km2.
General Product Information
| Document Type | National standards |
|---|---|
| Standard Status | Active |
| Standard Code | GB/T 46336.1-2025 |
| CCS | \nWatershed planning and river regulation projects |
| ICS | Industrial water |
| Implement Date | 2026-05-01 |
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