日批在线视频_内射毛片内射国产夫妻_亚洲三级小视频_在线观看亚洲大片短视频_女性向h片资源在线观看_亚洲最大网

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

Transforming barren deserts into pockets of power

By Yuan Shenggao | China Daily | Updated: 2024-11-28 10:18
Share
Share - WeChat

Through long-term field observations and experiments, researchers have discovered the shell-like organisms known as biological soil crusts that appear in grass grid sand barriers can firmly "seal up" shifting desert sands.

"Biological soil crusts play a crucial role in sand surface stabilization, land desertification restoration and desert ecosystem biodiversity maintenance, earning them the title of 'desert ecosystem engineers'," said Zhao Yang, a researcher at the Northwest Institute of Eco-Environment and Resources of the Chinese Academy of Sciences. "Their formation and development are important indicators of surface stability and ecosystem recovery in desert areas."

It takes 10 to 20 years for biological soil crusts to form under natural conditions, but at the Shapotou Desert Research and Experiment Station of the Chinese Academy of Sciences, researchers have developed artificial blue-green algae crust technology that substantially accelerates the process. Zhao said this would not have been possible without the grass grids, which reduce wind speed, prevent the movement of sand and create a safe harbor for micro-organisms. By spraying artificially cultivated blue-green algae liquid within the grass grids, a stable blue-green algae crust layer can be formed within two to three years.

"In dry conditions without water, algae enter a dormant state, but when they encounter water under ideal conditions, they revive. We use this method to store and cultivate blue-green algae. When needed, we rehydrate them and spray them on the sand surface," said researcher Xu Wenwen.

Blue-green algae can grow and reproduce under harsh conditions such as high temperatures, drought, strong UV radiation and nutrient-poor environments. Zhao's team has identified seven dominant species of blue-green algae with good adaptability to desert environments.

Artificial biological soil crusts have played an important role in China's sand-control actions, especially in areas along the Yellow River, which forms a large Chinese character " " shape on the vast landscape of the Kubuqi Desert in western Inner Mongolia. The site is home to China's largest individual-scale photovoltaic desert control project, which produces approximately 4.1 billion kilowatt-hours of green electricity annually, saving about 1.23 million metric tons of standard coal each year while reducing carbon dioxide emissions by approximately 3.19 million tons.

"With vast desert areas and abundant sunshine, Kubuqi provides the necessary land and sunlight resources for photovoltaic power generation. The photovoltaic panels block direct sunlight, reduce desert water evaporation and lower wind speeds, thereby improving the ecological environment for plants," said project construction leader Zhao Jinquan, explaining how photovoltaics complement desert control procedures.

Implementing engineering projects in desolate deserts is no easy task. In Kubuqi, hundreds of bulldozers were used to level the sand dunes before installing 4.4 million photovoltaic panels fixed with 570,000 pile legs. To assist in laying out the panels, reeds played a crucial role in windbreak and sand fixation. Workers spread reeds across the area, and drones evenly scattered seeds of grasses and shrubs that can grow in the photovoltaic field.

Several innovative technologies have been applied at the site, such as dual-sided power generation on panels using double-glass components that increase electricity generation by up to 10 percent. As well, workers have planted high-quality grass and medicinal crops under the photovoltaic panels, and they raise chickens and sheep on-site.

Project engineering leader Wang Jiye said the Kubuqi photovoltaic desert control project is one of the first in China to widely apply flexible support materials in desert areas.

?

Top
BACK TO THE TOP
English
Copyright 1994 - . 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: 黄片毛片在线观看 | 午夜伦理在线 | 中文字幕第69页 | 新97超碰| 国产成人麻豆精品午夜在线 | 国产免费资源 | 成人精品综合 | 国产成人精品一区 | 亚洲第一在线视频 | 四虎少妇做爰免费视频网站四 | 五月天色婷婷丁香 | 亚洲精品一区在线观看 | 美女久久久久久久久久 | 婷婷色一区二区三区 | 放几个免费的毛片出来看 | 国产福利社 | 亚洲区精品 | 久久国产精品一区二区三区 | 四虎网址在线观看 | 大陆av片 | 女人久久 | 99热这里都是精品 | 欧美性a视频 | 欧美亚洲国产一区二区三区 | av在线免费播放网址 | 黄色综合网站 | 成人xxx | 成人黄色在线观看视频 | 一区两区小视频 | 欧美精品一二三区 | 深爱五月激情五月 | 欧美黑人性xxx猛交 欧美日韩在线播放视频 | 亚洲专区区免费 | 影音先锋国产在线 | 国产一区二区三区免费播放 | 91午夜影院 | 国产一区在线视频观看 | 波多野结衣三区 | 欧美巨大荫蒂茸毛毛人妖 | 四虎影院国产 | 久久98 |