日韩精品久久一区二区三区_亚洲色图p_亚洲综合在线最大成人_国产中出在线观看_日韩免费_亚洲综合在线一区

Global EditionASIA 中文雙語Fran?ais
China
Home / China / Newsmaker

Researchers enrich shrimp farming returns

Sustainable model enables Pacific shrimp to be raised in rugged Ningxia

By HU DONGMEI in Yinchuan and ZHOU HUIYING | China Daily | Updated: 2025-05-06 08:50
Share
Share - WeChat
Duan Yunling checks water treatment equipment at a Pacific white shrimp farm in Helan county, Ningxia Hui autonomous region. [Photo provided to China Daily]

A retired professor from Tsinghua University has revolutionized shrimp farming in Northwest China, developing a sustainable model that uses recycled water to raise Pacific white shrimp in the arid climes of the Ningxia Hui autonomous region.

To diversify the local aquaculture species, farmers in Helan county's Sishilidian village started raising Pacific white shrimp around 2018. However, farmers encountered a series of difficulties, such as low survival rates, difficult wastewater treatment and high equipment maintenance costs.

In the same year, the city's agriculture and rural affairs bureau contacted Duan Yunling, a structural engineer and water treatment expert at Tsinghua University in Beijing, inviting him to help solve the issues.

He spent the next six years developing a model for growing Pacific white shrimp using recycled water.

"Basic water treatment wasn't a challenge for me," said Duan. "The real issue was that, after multiple treatment processes, the income from shrimp farming couldn't cover the costs."

He discovered that due to the lack of a large amount of fresh water inflow, high stocking densities and excessive feeding, traditional pond farming methods would lead to water deterioration over time.

"It not only resulted in low shrimp survival rates but also caused environmental pollution," said Duan.

"As a result, we suggested switching to small-scale facility farming with water recycling."

According to Duan, compared to traditional open-air pond farming, facility farming has the advantages of lower water usage, controllable temperatures and year-round production.

In late 2018, local enterprises had attempted the method, but failed at the nursery stage.

"I made the decision to stay and solve the challenges of inland shrimp farming," Duan said.

1 2 Next   >>|
Top
BACK TO THE TOP
English
Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online 0108263

Registration Number: 130349
FOLLOW US
 
主站蜘蛛池模板: 美女狠狠干 | 成年网站在线观看 | 免费黄色a视频 | 粉嫩粉嫩芽的虎白女18在线视频 | 天天噜天天干 | 欧美高清hd | 一级毛片视频免费观看 | 日韩在线观看视频免费 | 免费成人高清在线视频 | 91久久99热青草国产 | 久久天天拍天天爱天天躁 | 婷婷97狠狠的狠狠的爱 | 婷婷涩五月 | 大香萑75久久精品免费 | √天堂在线| 91精品欧美久久久久久动漫 | 免费国产成人午夜在线观看 | 精品96久久久久久中文字幕无 | 久久综合一 | 成人国产精品视频 | 国产在线91精品入口首页 | 欧美综合激情网 | 精品欧美一区手机在线观看 | 韩国精品一区 | 日本一区视频在线播放 | 欧美美女动态图 | 国产成人综合网 | 日本黄色激情视频 | 欧美日韩在线视频不卡一区二区三区 | 色婷婷综合网 | 中文字幕一区二区三区四区 | 国产男女爽爽爽免费视频 | 91美女在线观看 | 天天看天天爽天天摸天天添 | 欧美变态口味重另类日韩毛片 | 午夜视频一区二区 | 久久精品黄色 | 欧美日韩福利视频 | 在线观看视频亚洲 | 日本不卡一区 | 无限看片在线版免费视频大全 |