Wild plant folk nomenclature of the Mongol herdsmen in the Arhorchin national nature reserve, Inner Mongolia, PR China

Background Folk names of plants are the root of traditional plant biodiversity knowledge. In pace with social change and economic development, Mongolian knowledge concerning plant diversity is gradually vanishing. Collection and analysis of Mongolian folk names of plants is extremely important. During 2008 to 2012, the authors have been to the Arhorchin National Nature Reserve area 5 times. Fieldwork was done in 13 villages, with 56 local Mongol herdsmen being interviewed. This report documents plant folk names, analyzes the relationship between folk names and scientific names, looks at the structure and special characteristics of folk names, plant use information, and comparative analysis were also improved. Methods Ethnobotanical interviewing methods of free-listing and open-ended questionnaires were used. Ethnobotanical interview and voucher specimen collection were carried out in two ways as local plant specimens were collected beforehand and then used in interviews, and local Mongol herdsmen were invited to the field and interviewed while collecting voucher specimens. Mongolian oral language was used as the working language and findings were originally recorded in Mongolian written language. Scientific names of plants are defined through collection and identification of voucher specimens by the methods of plant taxonomy. Results A total of 146 folk names of local plants are recorded. Plant folk names corresponded with 111 species, 1 subspecies, 7 varieties, 1 form, which belong to 42 families and 88 genera. The correspondence between plant folk names and scientific names may be classified as one to one correspondence, two or three to one correspondence, and one to multitude correspondence. The structure of folk names were classified as primary names, secondary names and borrowed names. There were 12 folk names that contain animal names and they have correspondence with 15 species. There are nine folk names that contain usage information and they have correspondence with 10 species in which five species and one variety of plant are still used by the local people. The results of comparative analysis on the Mongol herdsmen in the Arhorchin National Nature Reserve and the Mongolians in the Ejina desert area shows that there are some similarities, as well as many differences whether in language or in the structure. Conclusion In the corresponding rate between plant folk names and scientific names yielded a computational correspondence of 82.19%, which can be considered as a high level of consistency between scientific knowledge and traditional knowledge in botanical nomenclature. Primary names have most cultural significance in the plant folk names. Special characteristic of plant folk names were focused on the physical characteristics of animals which were closely related to their traditional animal husbandry and environment. Plant folk names are not only a code to distinguish between different plant species, but also a kind of culture rich in a deep knowledge concerning nature. The results of comparative analysis shows that Mongolian culture in terms of plant nomenclature have characteristics of diversity between the different regions and different tribes.

Methods: Ethnobotanical interviewing methods of free-listing and open-ended questionnaires were used. Ethnobotanical interview and voucher specimen collection were carried out in two ways as local plant specimens were collected beforehand and then used in interviews, and local Mongol herdsmen were invited to the field and interviewed while collecting voucher specimens. Mongolian oral language was used as the working language and findings were originally recorded in Mongolian written language. Scientific names of plants are defined through collection and identification of voucher specimens by the methods of plant taxonomy.
Results: A total of 146 folk names of local plants are recorded. Plant folk names corresponded with 111 species, 1 subspecies, 7 varieties, 1 form, which belong to 42 families and 88 genera. The correspondence between plant folk names and scientific names may be classified as one to one correspondence, two or three to one correspondence, and one to multitude correspondence. The structure of folk names were classified as primary names, secondary names and borrowed names. There were 12 folk names that contain animal names and they have correspondence with 15 species. There are nine folk names that contain usage information and they have correspondence with 10 species in which five species and one variety of plant are still used by the local people. The results of comparative analysis on the Mongol herdsmen in the Arhorchin National Nature Reserve and the Mongolians in the Ejina desert area shows that there are some similarities, as well as many differences whether in language or in the structure.

Background
Article 8 (j) of the "Convention on Biological Diversity" (CBD) describes that subject to its national legislation, respect, preserve and maintain knowledge, innovations and practices of indigenous and local communities embodying traditional lifestyles relevant for the conservation and sustainable use of biological diversity and promote their wider application with the approval and involvement of the holders of such knowledge, innovations and practices and encourage the equitable sharing of the benefits arising from the utilization of such knowledge, innovations and practices [1]. Article 2 (Definitions) of "The Convention for the Safeguarding of Intangible Cultural Heritage" (ICH) describes that the intangible cultural heritage means the practices, representations, expressions, knowledge, skillsas well as the instruments, objects, artifacts and cultural spaces associated therewiththat communities, groups and, in some cases, individuals recognize as part of their cultural heritage [2]. "Oral traditions and expressions, including language as a vehicle of the intangible cultural heritage" and "knowledge and practices concerning nature and the universe" were parts of the domains of ICH.
Folk names of plants are the root of traditional plant biodiversity knowledge. Indigenous knowledge is the systematic information that remains in diverse social structures. It is usually unwritten and preserved only through oral tradition, and it refers to the knowledge system of indigenous people and minority cultures. Traditional knowledge of biodiversity concerns the names, uses, and management of plants and animals as perceived by the local and or indigenous people of a given area. In the ethnobiological and anthropological area, Berlin has indicated a strong need for linking the scientific and folk systems of classification [3]. Examples of such links have been quoted by Berlin et al. who has looked at the relationship between folk names and scientific names [4][5][6][7]. The earliest research on plant folk nomenclature of minority nationalities of China was launched in Xishuangbanna which aims were to study the plant folk nomenclature and taxonomic system of Dai nationality [8], and folk nomenclature of rattan by Hani nationality [9]. These works have laid the foundation for folk taxonomical study of the minority nationalities in China.
In pace with social change and development, the Mongols are changing from nomadic people into settlement residents. The knowledge concerning grassland ecosystems is vanishing gradually because the related knowledge is no longer useful to the Mongols who are settled down or engaged in farming or other economic pursuits. The Mongolians in Inner Mongolia have been influenced by other cultures, e.g. in some areas Han Chinese words, including plant names, are more or less mixed up with the Inner Mongolians' spoken language. This may be leading to Mongols forgetting traditional botanical knowledge related to the language of plant folk names and classifications. Both artificial and natural factors lead to the degradation of the grassland and desertification. As a result, plant diversity that Mongolians traditionally named and used has decreased. The reduction of plant diversity may also lead to the extinction of the related knowledge of biodiversity. Thus it will be impossible to hand down to future generations. For this reason, collection and analysis of Mongolian plant folk names is extremely important.
Ethnobotanical surveys and analysis on wild plant folk names in the Mongolian language have been carried out since the 1990s [10][11][12][13]. However, studies on the relationship between Mongolian plant folk names and scientific names were only developed in the Ejina desert area, one of the Banners of western Inner Mongolia [14]. Therefore, ethnobotanical findings related to the Mongolian plant folk nomenclature are still fragmentary. Biodiversity has social, economic, ecological and ethical value. Understanding ecological functions of biodiversity, respecting the ethics and social importance of biodiversity, and the appropriate exploitation and use of biodiversity are the global issues facing biodiversity today. Scientists have paid close attention to the relationships between biodiversity and cultural diversity [15][16][17][18]. Mongolian traditional knowledge of biodiversity includes aspects of folk nomenclature, and traditional use and management of regional biodiversity. In this paper, in accordance with the ethnobotanical collections of the Mongolian folk names of wild plants in the Arhorchin National Nature Reserve, the relationship between folk names and scientific names are studied, and the structure of folk botanical nomenclature is also analyzed.

Study area and ethnic group
The Arhorchin National Nature Reserve is located in northeastern Inner Mongolia, China, at 43°48'30" -44°28'31"N and 119°55'02"-120°41'27"E ( Figure 1), with a land area of 1367.94 km 2 . The altitude ranges from 350 m to 400 m. This area has a temperate zone continental climate, with an average annual temperature of 6°C, and a mean rainfall of about 300 mm. The frostfree period in the area is from 130 to 140 days [19]. The Arhorchin National Nature Reserve is situated in the transitional zone area where mountain and hill of the Greater Hinggan Mountains transition to Horqin Sandy Land. There are many geomorphic types: sand, hills, river lowlands and lake. The zonal soil classification is chestnut soil. Other types of soil such as grey meadow soil is distributed in the swamp and ancient river area, and aeolian sandy soil is the soil type of sandy desertification land. This area belongs to the typical steppe subband of mesothermal steppe zone in the flora regional system of Inner Mongolia [20]. The vegetation form in the area is mainly shrub, steppe, meadow, swamp and aquatic vegetation. The steppe vegetation may be further classified as sparse forest steppe, typical steppe, and degenerated steppe. The meadow vegetation includes typical meadow, swamp meadow and saline meadow. According to related materials [21][22][23][24][25][26] and our investigations, about 350 species of vascular plants are distributed in this area.
Arhorchin, a Mongol word meaning northern archer, is the name of one of the descendent tribes of Genghis Khan's brother Khasar. At the beginning of the Qing dynasty, the Arhorchin tribe and their occupied area was established as a Banner, and the tribe's name was used as the Banner name [19]. In 1998, the Banner-level nature reserve was established. After two years, the Arhorchin Nature Reserve was approved by the People's Government of Inner Mongolia as a provincial level nature reserve. In 2004, the nature reserve was promoted to a national nature reserve, and was named "Arhorchin National Nature Reserve of Inner Mongolia". As an open-ended type of nature reserve, there are more than 9500 local Mongol herdsmen's pasture ranges involved in the nature reserve area. The local Mongol people still engaged in their traditional animal husbandry depend on wild plant resources in this area, and the local people still traditionally use local wild plants for various purposes.

Methods
During 2008 to 2012, the authors have been to the nature reserve area 5 times. Field study was done in 13 villages of Agtanhua, Arbolag, Bayannuur, Burental, Chabintal, Chagantal, Dalha, Hagintal, Hunit, Nugustai, Shangxinmod, Tuburig, and Wuhercholuu, and 56 local Mongol herdsmen were interviewed as key informants, including 42 males and 14 females. Among them, 2 informants were over the age of 80, 15 informants at the age of 70-79, 17 informants at 60-69, 17 informants at 50-59, and 5 informants at 40-49. Ethnobotanical interviewing methods of free-listing and open-ended questionnaires were used [27][28][29][30][31]. Ethnobotanical interview and voucher specimen collection were carried out in two ways as local plant specimens were collected beforehand and then used in interviews, and local Mongol herdsmen were invited to the field and interviewed while collecting voucher specimens. Mongolian oral language was used as the working language and findings were originally recorded in Mongolian written language. Scientific names of plants were defined through collection and identification of voucher specimens by the methods of plant taxonomy. The voucher specimens were deposited in the Herbarium of the College of Life Science and Technology, Inner Mongolia Normal University.

Results and discussion
A total of 146 folk names of local plants are recorded. Among them, more than 20 folk names are used two or three times for plant names by the local people. Based on the results of identifying the specimens, the folk names corresponded with 111 species, 1 subspecies, 7 varieties, 1 form, which belong to 42 families and 88 genera (Table 1). Among them, only one species of Equisetum arvense L. belonged to Pteridophyta and Ephedra sinica Stapf belonged to Gymnosperm. In the Table 1, plant families are arranged in accordance with the order of the Cronquist (Arthur John Cronquist, 1919-1992) system [32].

The correspondence between plant folk names & scientific names
The plants folk names and scientific names (species) are not a simple one to one correspondence. It may be organized as below: (a) One to one correspondence One folk name has correspondence with one scientific species. For example, the folk name zhergen with Ephedra sinica Stapf, ber checheg with Delphinium grandiflorum L., delt with Ulmus macrocarpa Hance, hailson mod with Ulmus pumila L. etc. In this case, a total of 78 single folk names has correspondence with 78 taxon, specifically as 72 species, 1 subspecies and 5

Structure of the local Mongolian folk botanical nomenclature
A basic step in analyzing the structure of folk botanical nomenclature is to tell the difference between primary and secondary names and to distinguish between the various primary names [27]. According to the result of the linguistic analysis, the Mongolian folk names of wild plants in the Arhorchin National Nature Reserve are distinguished as primary names, secondary names and borrowed names.

Primary names
A primary name is considered to be 'semantically unitary' which means that it is a single expression, even if composed of more than one constituent.  [33]. The Mongol herdsmen in the Arhorchin National Nature Reserve use morin shabag and honin shabag for distinguish two different species of Artemisia. However, other species of Artemisia were used different names as agi, suih-ebes, erem by the the Mongol herdsmen in the Arhorchin National Nature Reserve. In the village of Theth, which has traditionally been inhabited by the Catholic Kelmendi and Shala tribes in the Northern Albanian Alps, Chenopodium bonushenricus, Amarathus retroflexus and Amarathus lividus represent what are known in ethnotaxonomy as prototypes. They are simply called nena, or nena e butë. The other members of this "nena group" (Chenopodium album and Rumex longifolius) are classified by the locals with the folk specifics nena e egër or nena elpjet [34]. In the Arhorchin National Nature Reserve, the Mongol herdsmen called Chenopodium album as morin noil, and called Amarathus retroflexus as arbai or wulaan bada. From this we can see that the classification of the same plant species is different between different ethnic groups.
Special characteristic of the plant folk names of the Mongol herdsmen in the Arhorchin national nature reserve Since herdsmen are most familiar with the physical characteristics of animals, when naming plants they easily transferred some of the applicable characteristics of animals to describe the plants. Hasbagan and Chen had discussed the fact that the Mongolians were accustomed to using the physical characteristics of animals in traditional plant nomenclature [10] As an important part of all Mongolians, the Mongol herdsmen in the Arhorchin National Nature Reserve also have this tradition. Typical kind is that the animal's physical characteristics are used to describe features of the parts of plants. In this case, (an) animal's beard, ear, eye, feet, hoof, horn, palate, tail, teat, and tongue are traditionally used to describe morphological characteristics of the parts of plants which (were) related (to) 15 species (Table 2).

Plant use information among the plant folk names
It can be seen that plant folk names are carrying important information about plant use in accordance with the meaning of the words of plant folk names (Table 3). Among them, local use information of five species and one variety of plants are showing no difference between folk names and the ethnobotanical interview.
According to the information from folk names, Amaranthus retroflexus and Lepidium apetalum may be edible plants. Unfortunately, ethnobotanical interviews have not found related materials in this area. However, according to related reports, seeds of Amaranthus retroflexus are used as grain by Arhorchin Mongol herdsmen in same area [35], and aboveground parts of Astragalus melilotoides, with leaves removed, were used to make pan brushes [36]. We think that this problem may be caused by two kinds of circumstances. It may be because our ethnobotanical interviews failed to cover more people in this area. Another possibility is the rapid disappearance of traditional knowledge on plant use. The reality is that the tradition of wild plant use is losing its practical utilization value with the economic development of this area. It's not necessary to collect and make pan brushes for herdsmen today, because it's so convenient to go to the store to buy pan cleaning brushes made of synthetic materials for the present day herdsmen.

Comparison of plant folk names between the Mongol herdsmen in the Arhorchin national nature reserve with the Mongolians in Ejina desert area
In 2008, Khasbagan and Soyolt analyzed wild plants' folk names used by the Mongolians in the Ejina desert area. A total of 119 folk names of local plants were recorded; the folk names corresponded with 91 scientific species [14]. The statistic results showed that some 16 species and 1 variety are still the same despite different vegetation types between the two areas. Therefore, the comparisons must be carried out within the scope of these 16 species and 1 variety, others are incomparable. Folk names of 6 species were totally different between the two areas, they are also incomparable (Table 4). Among them, a folk name "hongolzuur" is a simple primary name, and it cannot be translated into any other language. From the folk names in the Table 4, it can be seen that the words which used as plant names and their meanings are completely different.
Among the other 10 species and 1 variety, folk name taan of Allium polyrhizum was completely the same, comparison will not be needed. In the remaining 9 species and 1 variety, the relationship between the plant folk names from two areas are complicated. Firstly, Agriophyllum pungens was called churgul in Arhorchin and called sulker in Ejina. In modern Mongolian language, churgul and sulker are called [culihir]. The authors considered that churgul and sulker represented Mongolian dialects in different regions. Glyeyrrhiza uralensis was called xiher ebes in Arhorchin, and called xiker buyaa in Ejina. The first word of the name xiher and xiker were a different pronunciation of the same word [sihir] which means sugar in modern Mongolian language. In the name of xiher ebes, the second word  [ebes] means grass, so the whole name means 'sweet grass'. In Ejina, a folk generic buyaa usually is used to name the plants which have fleshy roots [14]. Secondly, at least one name is the same between the two areas.
Achnatherum splendens has only one name, deres, in Arhorchin, but has two names, deres and tongge, in Ejina. The name deres was the same in both areas. Iris lactea var. chinensis has only one name, chahirma, in Arhorchin, but has two names, cakildag and cakirma, in Ejina. The name cakirma was the same in both areas. Artemisia frigida has two names agi and altan agi in Arhorchin, and has two other names xiaralji and agi in Ejina. The name agi was the same in both areas.
Phragmites australis has only one name hulus in Arhorchin, but has six names, hulus, acamag, shagxig hulus, shaorag hulus, hana hulus, and ajirgan hana in Ejina. Only one name hulus was the same between two area. Thirdly, the Mongol primary name noil of Chenopodium was used in different ways between the two areas. In Arhorchin, the Mongol folk name of Chenopodium acuminatum and Chenopodium album was called honin noil and morin noil, which belong to the secondary name based on the primary name noil. However, the primary name noil is used as a species name in Ejina. Fourthly, Sonchus arvensis has three different names in Arhorchin and only one name in Ejina. stage, which caused them to have certain differences in language and culture. The difference of their traditional botanical knowledge and culture also caused this reason. Arhorchin Mongolians belongs to the Mongolian Horchin tribe, from the area of Ergun (Argun) River and Hulun Buir Lake moved to the present place for more than 400 years. However, the majority of Ejina Mongolians belongs to the Mongolian Oirat tribe, from the area of Volga River Basin moved to the present place for more than 300 years. The distance between Arhorchin Banner and Ejina Banner is about 2000 kilometers. They hardly have contact with each other, they did not have the opportunity and needs to exchange traditional botanical knowledge. This confirms the regional characteristics of the traditional botanical knowledge.

Conclusion
The Mongol herdsmen in the Arhorchin National Nature Reserve were capable of naming 120 species including infraspecific taxa in their own language-Mongol language. In the corresponding rate between plant folk names and scientific names, there are 146 folk names that have correspondence with 120 scientific names of plant species and infraspecific taxa, yielding a computational correspondence of 82.19%. The authors think that this corresponding rate was quite high, the local Mongol herdsmen's plant nomenclature have very high accuracy. It also can be considered as one of the typical case that the level of consistency between scientific knowledge and traditional knowledge in botanical nomenclature.
Structurally, folk names of the Mongol herdsmen in the Arhorchin National Nature Reserve were classified as primary names, secondary names and borrowed name. Primary names have the most cultural significance in the plant folk names. However, Secondary names indicated the existence of folk generic, and have important meanings for folk classification. Borrowed names indicated that local Mongols have had cultural exchanges with other ethnic groups for a long time.
Special characteristic of the local Mongol herdsmen's wild plant nomenclature was undoubtedly focused on physical characteristics of animals, particularly familiar domestic animals like cow, sheep, goat, horse, camel, and steppe wild animals like the wolf, marten, rabbit, We have seen plant folk names carrying important information about plant use from this case study. In this sense, plant folk names are not only a code to distinguish between different plant species, but also a kind of culture rich in a deep knowledge concerning nature.
The results of comparative analysis of the Mongol herdsmen in the Arhorchin National Nature Reserve and the Mongolians in the Ejina desert area shows that there are some similarities, as well as many differences in language and in the structure of plant names. From this we can infer that Mongolian culture, in terms of plant nomenclature, have characteristics of diversity between the different regions and different tribes.
Folk botanical nomenclature and classification of the Mongol herdsmen in the Arhorchin National Nature Reserve is an important part of their natural culture. This type of knowledge and culture has a great effect on their adaptation to the environment, utilization of plant resources and traditional biodiversity management on the community level.
Why the establishment of a nature reserve in that place? Because the ecosystem and its biodiversity has been preserved so well. Then, Why is the ecosystem there so good? The land of the Arhorchin National Nature Reserve today used to be the grazing areas of the herdsmen in the near past. In this area, local herdsmen were engaged in animal husbandry from generation to generation. However, the environment here is not damaged yet, the ecosystem there is still very healthy. All of these are due to herdsmen, past and the present. It has been preserved because of the herdsmen's mode of production, model of life, and traditional culture concerning the natural environment. Luckily, the herdsmen were not moved from this area after the establishment of the nature reserve. The local Mongol people still traditionally use local wild plants for various purposes, and actively cooperate with the administration bureau of the nature reserve.