相关实验视频

Updated: Jun 28, 2025

Measuring Phosphorus Release in Laboratory Microcosms for Water Quality Assessment

Measuring Phosphorus Release in Laboratory Microcosms for Water Quality Assessment

Published on: July 22, 2019

在中国的社会经济发展下,缓解资源压力

Jingyu Miao^1,2, Xiuheng Wang^1,2, Gang Liu³

¹State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, PR China.

Environmental science & technology

|April 11, 2024

概括

中国中国中国中国.

科学领域:

农业科学农业科学
环境科学环境科学
资源管理资源管理

背景情况:

(P) 对粮食安全和生态系统健康至关重要.
由于人口和经济增长,对酸盐岩的需求增加.
自1949年以来,中国的发展成为矿开采和农业的全球主要参与者.

研究的目的:

绘制中国政策对 (P) 资源效率的长期影响.
量化P流量并评估70年来的效率变化.
确定P资源效率变化的驱动因素,并告知未来的管理层.

主要方法:

实质流量分析 (SFA) 用于量化P流量.
统计分析 (SEA) 来评估P的资源效率.
对资源利用和废物产生政策影响的分析.

主要成果:

中国的资源效率呈现出U型趋势,总体提高了22.7%,在1975年出现下降.
资源利用和废物产生在2015年左右达到峰值 (20万开采,11万浪费).
水产养殖废水和某些废物管理做法会对P的效率产生负面影响.

结论:

政策实施,特别是循环农业食品系统战略,从1975年至2018年大幅提高了P资源效率.
持续有效的P循环管理对于中国的零废物社会目标至关重要.
具体的做法,如将工业废物与建筑材料混合,以及水产养殖发展,需要对P的效率进行重新评估.

关键词:

农业政策农业政策水产养殖废水废水水产养殖废水在中国,中国的中国.基石灰是一种.是一种的物质.资源效率是指资源的使用效率.统计分析的统计分析.分析物质流量分析物质流量分析

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