Beijing is the capital city of China. It     1     (cover) an area of around 17, 000 square kilometers, in which there are different kinds of bird habitats (栖息地),     2     (include) grassland, scrubland (灌木丛林地), wetland, and also agricultural land. Researchers call these areas “service stations,” where migrating (迁徙) birds stop     3     (rest) and feed. But the birds ‘“service stations” re     4     (rapid) closing in Beijing, as the city considers scrubland, grassland and old agricultural land to be “dirty” and “ugly”.

The loss of grassland and scrubland is already having a major influence     5     Beijing’s bird life. In the north of Beijing, the land around Miyun used to be visited by thousands of cranes (鹤). Now, much of that land is covered with man-made forest and     6     number of cranes there has greatly fallen.

“Cranes are rare and valuable animals in China. At Miyun, a festival     7     (hold) to celebrate the migration of cranes every year,” one researcher, Townshend, says. “Because it is Beijing, we can attract many people—both local people     8     visitors.”

“More cooperation (合作) between     9     (country) is needed,” Townshend adds. “Migratory birds are a shared natural heritage (遗产), and with this comes a common     10     (responsible) to protect them and the places they need,” he says.

2 . The Okapi Wildlife Reserve, located in the Democratic Republic of the Congo, is a UNESCO World Heritage Site and home to one-sixth of the remaining wild okapi in the world. It protects many other wildlife species as well as one-fifth of the Ituri forest. But despite its status, the reserve is under threat from human activities.

Mining, deforestation (森林破坏), and illegal hunting are all threatening the reserve, and criminals have murdered several people, including forest guards, since 2012. Forest loss is expanding rapidly. In 2020, the most deforestation in the Okapi Wildlife Reserve since records began in 2002 was recorded via satellite data. Since 2002, the area has lost about 7% of its total forest cover. Most recently, satellite data shows deforestation along the Ituri River in late 2021, likely from illegal gold mining.

“Miners are actually eating the reserve out of its wildlife by hunting animals for food. There is almost no wildlife left around the mine itself, and wildlife numbers are greatly reduced around mining towns,” said John Lukas, co-founder of the Okapi Conservation Project.

Protecting the reserve is important for the endangered okapi and other wildlife that call the region home, but preserving the area’s forests is of particular significance in dealing with climate change.

“The forests of Congo, more than forests in the Amazon and in Asia, store carbon even in times of drought and rising temperatures,” explained Lukas. “Preserving the forests not only provides habitats for okapi, elephants and chimpanzees but gives humans time to adjust our source of energy to be more sustainable and carbon neutral (碳中和). Hopefully the Western world will financially support the countries of the Congo basin to value their forests as sources of life and not just a kind of goods to be sold.”

3 . A change to organic dairy farming around the nature reserves could significantly reduce damage done to the areas by nitrogen produced by solid waste from cows, according to a research.

Concentrated animal farming near Natura 2000 areas was banned in 2002. However, 800 farms still remain in the outer edge of these protected areas, some of which are particularly damaging to the environment.

Researchers looked at 34 organic farms to see how organic farming practices compared with those large-scale factory farms. They found that cows at organic farms produced 22% less nitrogen in their waste, while the amount of emissions per hectare(公顷)was 53% lower.

“The reason why organic farming is less polluting is that farms generally have fewer cows and don’t use fertilizer,” said researchers. Organic cows are also put out to grassland more often and aren’t given concentrates(精饲料)to the same degree, which also limits emissions.

While organic dairy farms would make a good protective barrier against nitrogen around the nature reserves, this doesn’t hold true for organic chicken and pig farms, the research showed.

“Despite the good it would do, not many dairy farmers are likely to make the change,” researcher Gerard Migchels said. “The organic sector is currently relatively small. Growth is only possible if there is enough market demand. That would make it possible to come to a realistic price for organic milk,” he said.

In 2019, some 40,000 cows in the Netherlands were farmed organically, accounting for just 1% of the Dutch herd of 3.8 million.

According to a government report, 46% of nitrogen compound(复合物)pollution around nature reserves is down to agriculture, to which dairy farming contributes 60%. The new law on nitrogen emissions aims to reduce pollution by 40% by 2025 and 74% by 2035.