Abstract
BackgroundThe Hani people in the Honghe Prefecture of Southeastern Yunnan, China, have practiced terraced rice paddy farming for more than 1300 years. These rice fields, combined with the surrounding forests and water systems, form a special agroecosystem that has attracted both tourists and scientists. For centuries, the local people have traditionally collected wild edible plants (WEP) from the agroecosystem, but this unique traditional practice in this area has never been reported.MethodsEthnobotanical fieldwork was conducted in four counties (Yuanyang, Honghe, Jinping, and Lüchun) between 2014 and 2019. Local self-identified Hani people (186) were interviewed, and information concerning local WEP species was obtained, documented, and analyzed. Plant samples and voucher specimens were collected for taxonomic identification.ResultsA total of 224 WEP species, belonging to 90 families and 170 genera, were recorded as used by the Hani people in Honghe. The most common WEP parts used include fruits, stems, and leaves, and the most common preparation methods include eating as a potherb (wild vegetable) and eating fresh. Some WEPs, like Phyllanthus emblica and Dioscorea subcalva, have unique preparation methods. The use-value (UV) and frequency of utilization index (FUI) of WEP species were analyzed. The 20 WEP species with the highest UV were noted as particularly important to the Hani people’s daily life in Honghe.ConclusionA large majority of these WEP species possess tremendous economic potential for future development. However, the diversity of WEP species, the associated traditional knowledge, and the broader agroecosystem are facing challenges such as biodiversity loss and pollution from chemical pesticides and fertilizers. This study may help local people to recognize the value of local WEP species and associated traditional knowledge, as well as provide ethnobotanical information for the future development of this tourism region.
Highlights
The Hani people in the Honghe Prefecture of Southeastern Yunnan, China, have practiced terraced rice paddy farming for more than 1300 years
Zhu et al [6] carried out a series of experiments in the terraced rice paddy fields in Honghe Hani and found that crop heterogeneity could solve the vulnerability of monoculture crops to disease; Li et al [7] studied the agricultural soils by molecular methods and revealed the dynamics of organic matter in Yuanyang Terrace
There have been no studies on the wild edible plants (WEP species) collected and consumed by the Hani people in Honghe Hani terraced rice paddy system
Summary
The Hani people in the Honghe Prefecture of Southeastern Yunnan, China, have practiced terraced rice paddy farming for more than 1300 years. These rice fields, combined with the surrounding forests and water systems, form a special agroecosystem that has attracted both tourists and scientists. The terraced rice paddy fields of the Hani people of Southeastern Yunnan, China, represent a unique agroecosystem with significant economic, ecological, and esthetic values [1]. There have been no studies on the wild edible plants (WEP species) collected and consumed by the Hani people in Honghe Hani terraced rice paddy system. Due to their interests in local foods, tourists have driven a demand for WEP species on the menus of local restaurants
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