There are only 11 global pilot projects in the country, of which Zhejiang accounts for 2.

A few days ago, Qingtian County, Lishui welcomed a heavyweight international guest, Mr. Jose Graziano da Silva, Director-General of the Food and Agriculture Organization of the United Nations.

Mr. da Silva and his party are here to visit the Qingtian Rice-Fish Symbiosis system, an important agricultural cultural heritage (GIAHS) around the world. What is the magic of this system to attract the Director-General of the Food and Agriculture Organization of the United Nations to visit?

At present, a total of 36 projects from 15 countries have been listed as pilot projects for the protection of important agricultural cultural heritage in the world, including 11 in China and 2 in Zhejiang. Qingtian rice-fish symbiosis system is one of them, in addition to Shaoxing Huaiji Mountain ancient torreya group system. What is the uniqueness of these two "systems"? Let's learn about their unique charm.

Green field rice-fish symbiosis system is a kind of resource compound utilization system, which is characterized by rice raising fish, promoting rice with fish, ecological mutual benefit and double harvest of rice and fish.

Rice provides shade and organic food for fish. Fish play the functions of weeding, loosening the soil, providing oxygen and swallowing pests.

This ecological circulation system greatly reduces the dependence on chemical fertilizers and pesticides, increases the biodiversity of the system, ensures the ecological balance of farmland, and realizes a bumper harvest of rice and fish.

Take Renzhuang, a big town of paddy fish farming in Qingtian, as an example, the town has an area of 6000 mu of paddy fish culture, with an annual output of 600 tons of field fish and 2700 tons of rice, with a total output value of more than 40 million yuan, and farmers' income has increased significantly.

Qingtian rice-fish symbiosis system not only makes the traditional ecological circular agriculture model full of vitality, but also carries out a useful exploration for the protection and inheritance of important agricultural cultural heritage in the world.

Characteristics of ancient torreya group in Huaiji Mountain, Shaoxing, there are a large number of ancient Torreya trees and concentrated resources.

There are 105000 strong Torreya grandis trees in the Huaiji Mountain Mountains, of which there are more than 72000 Torreya grandis over 100 years old and more than 4500 over 1000 years old.

Cultivation has a long history.

The cultivation of Torreya grandis in Huaiji Mountain has a history of more than 2000 years. The ancient torreya tree, known as the "King of Chinese Torreya", is located in Torreya Wang Village, Zhaojia Town, Zhuji City, covering an area of more than 500 square meters; the ancient Torreya tree, known as the "King of Torreya grandis", is located in Zhanchuan Village, Jidong Town, Keqiao District (former Shaoxing County). It was planted in 581 AD and the tree age is 1435 years old. These two ancient Chinese torreya trees are fruitful year after year, and the output value of these two ancient torreya trees reaches 20-40,000 yuan.

"living specimen" of Ancient improved Variety selection and grafting Technology

Ancient Torreya grandis is an excellent variety cultivated from wild Torreya grandis by artificial selection and grafting. The ancestors of Huaiji Mountain mastered the grafting technology of fruit trees as early as 1400 years ago.

A unique mode of production

Torreya grandis dioecious, flower bud differentiation in the first year, flowering and fruiting in the second year, fruit maturity in the third year, from flowering and fruiting to seed maturity, as long as 18 months. Torreya grandis generally needs to be cultivated for more than 15 years to harvest Torreya grandis to produce benefits, and the production period is more than 30 years after cultivation. The economic life of Torreya grandis can reach more than a thousand years.

Excellent mountain utilization system

The ancestors of Huaiji Mountain built fish scale pits (dams) on steep slopes and planted Torreya grandis in terraced fields. intercropping (intercropping) tea, miscellaneous grains, vegetables and forages were used to carry out the compound management of Torreya grandis forest and the compound management system of "Torreya grandis-terraced fields-crops under the forest". A unique mountain utilization system with good ecology and high economic value has been formed.

Beautiful landscape and rich culture

Torreya grandis male and female trees, male trees straight straight, female trees in a variety of forms, ancient trees have a huge crown, luxuriant branches and leaves. For thousands of years, people in Huaiji Mountain have formed an inextricable bond with Torreya grandis in the aspects of culture, diet, medicine, marriage, fengshui and so on.

Source: Zhejiang Agriculture, Zhuji release