protection of grassland

例句：

1. 1.The government has launched a campaign to protect the natural habitat of endangered species.
   政府已经发起了一场运动来保护濒危物种的自然栖息地。
2. 2. The conservationists are working hard to protect the ecosystem that supports so many animals.
   保护主义者正在努力工作，以保护支持如此多动物的生态系统。
3. 3.The protection of the grassland is crucial for maintaining biodiversity and preventing soil erosion.
   草原的保护对于维持生物多样性和防止土壤侵蚀至关重要。