太实用了!稻田退水“零直排”的嘉兴经验学起来!
Zhong Guo Huan Jing Bao·2025-11-17 00:29

Core Viewpoint - The case study from Pinghu City, Jiaxing, Zhejiang Province, demonstrates the implementation of a "zero discharge" water recycling model in rice paddies, contributing to both agricultural productivity and environmental protection, aligning with the principle that "green mountains and clear waters are invaluable assets" [1] Group 1: Main Practices - Construction of high-standard farmland provides the hardware foundation for irrigation and drainage separation, enhancing water utilization efficiency by 10% [2] - Upgrading ecological drainage channels to intercept and purify water quality, achieving a total nitrogen concentration reduction of 18%-32% and total phosphorus reduction of 15%-29% [3] - Promotion of resource recycling through digital irrigation technologies, resulting in an annual water savings of 549 million cubic meters and a 40% reduction in drainage volume [4] Group 2: Achievements - The implementation of the "zero discharge" model has transformed agricultural landscapes, increasing grain production from 188,000 tons in 2020 to 192,000 tons in 2024, with innovative planting models enhancing per-acre income [6] - The ecological advantages have led to increased rural income, with per capita disposable income reaching 52,997 yuan in 2024, significantly above national and provincial averages [7] - The dual enhancement of ecological and economic value has attracted quality agricultural projects, contributing to a total output value exceeding 10 billion yuan [8]