Farmers carry freshly picked vegetables at the vegetable planting base in Laojunshan Village in Yubei District of southwest China's Chongqing Municipality, June 16, 2020. Making use of its geographical advantages and natural conditions, Laojunshan Village in recent years has vigorously developed alpine vegetable industry, so as to help the surrounding villagers to find jobs near their homes and increase income. (Xinhua/Wang Quanchao)

A farmer shows pumpkins at the vegetable planting base in Laojunshan Village in Yubei District of southwest China's Chongqing Municipality, June 16, 2020. Making use of its geographical advantages and natural conditions, Laojunshan Village in recent years has vigorously developed alpine vegetable industry, so as to help the surrounding villagers to find jobs near their homes and increase income. (Xinhua/Wang Quanchao)

Farmers pick water spinach at the vegetable planting base in Laojunshan Village in Yubei District of southwest China's Chongqing Municipality, June 16, 2020. Making use of its geographical advantages and natural conditions, Laojunshan Village in recent years has vigorously developed alpine vegetable industry, so as to help the surrounding villagers to find jobs near their homes and increase income. (Xinhua/Wang Quanchao)

A farmer shows freshly picked peppers at the vegetable planting base in Laojunshan Village in Yubei District of southwest China's Chongqing Municipality, June 16, 2020. Making use of its geographical advantages and natural conditions, Laojunshan Village in recent years has vigorously developed alpine vegetable industry, so as to help the surrounding villagers to find jobs near their homes and increase income. (Xinhua/Wang Quanchao)

Farmers pick eggplants at the vegetable planting base in Laojunshan Village in Yubei District of southwest China's Chongqing Municipality, June 16, 2020. Making use of its geographical advantages and natural conditions, Laojunshan Village in recent years has vigorously developed alpine vegetable industry, so as to help the surrounding villagers to find jobs near their homes and increase income. (Xinhua/Wang Quanchao)

A farmer picks pumpkins at the vegetable planting base in Laojunshan Village in Yubei District of southwest China's Chongqing Municipality, June 16, 2020. Making use of its geographical advantages and natural conditions, Laojunshan Village in recent years has vigorously developed alpine vegetable industry, so as to help the surrounding villagers to find jobs near their homes and increase income. (Xinhua/Wang Quanchao)

Aerial photo taken on June 16, 2020 show the vegetable planting base in Laojunshan Village in Yubei District of southwest China's Chongqing Municipality. Making use of its geographical advantages and natural conditions, Laojunshan Village in recent years has vigorously developed alpine vegetable industry, so as to help the surrounding villagers to find jobs near their homes and increase income. (Xinhua/Wang Quanchao)

Aerial photo taken on June 16, 2020 show the vegetable planting base in Laojunshan Village in Yubei District of southwest China's Chongqing Municipality. Making use of its geographical advantages and natural conditions, Laojunshan Village in recent years has vigorously developed alpine vegetable industry, so as to help the surrounding villagers to find jobs near their homes and increase income. (Xinhua/Wang Quanchao)

Farmers carry freshly picked water spinach at the vegetable planting base in Laojunshan Village in Yubei District of southwest China's Chongqing Municipality, June 16, 2020. Making use of its geographical advantages and natural conditions, Laojunshan Village in recent years has vigorously developed alpine vegetable industry, so as to help the surrounding villagers to find jobs near their homes and increase income. (Xinhua/Wang Quanchao)