The Wang River ( Thai : แม่น้ำวัง , RTGS : Maenam Wang , pronounced [mɛ̂ː.náːm wāŋ] ; Northern Thai : น้ำแม่วัง , pronounced [náːm mɛ̂ː.wāŋ] ) is a river in northern Thailand .
27-525: The Wang River is 335 kilometres (208 mi) long. Its waters flow from north to south. The Wang River has its source in the Phi Pan Nam Range in Wiang Pa Pao District , Chiang Rai Province . One of the principal settlements along the river is Lampang , which is on the north bank of a curve in the river. From Lampang, the river flows southwards passing by Thoen into Tak Province . It joins
54-613: Is 67,473 km (26,051 sq mi), while the total forest area is 22,374 km (8,639 sq mi) or 33.2 percent of this regional area. There are several different systems of dividing modern Thailand into different regions, which gives slightly different boundaries for Central Thailand. In the geographic six-region system, the central region includes the following 22 provinces, divided into three groups: The four-region system includes 26 provinces in its definition of Central Thailand. Especially for statistical purposes, they are divided into four groups: The eastern region
81-574: Is bound by the Mekong River . There are columnar basalt formations in Mon Hin Kong ( Thai : ม่อนหินกอง ) in an area in the mountains near Na Phun, Wang Chin District , Phrae Province. In Phae Mueang Phi there are mushroom rocks and other bizarre rock formations caused by erosion . The Phi Pan Nam range system is often divided into two physiographic longitudinal sections: The highest point
108-594: Is composed of many smaller mountain chains roughly aligned in a north–south direction in its northern part and, further south, in a northeast–southwest direction. These ranges cover an extensive area and are often separated by intermontane basins or lowlands. They end in the west with the Khun Tan Range , in the east with the Luang Prabang Range , and with the Central Plain of Siam in the south. The northern tip
135-433: Is listed by eastern Thailand. For FY 2018, Central Region had a combined economic output of 863.328 billion baht (US$ 27.85 billion), or 5.3 percent of Thailand's GDP. Ayutthaya province had an economic output of 412.701 billion baht (US$ 13.3 billion). This amounts to GPP per capita of 454,953 baht (US$ 14,676), 40 percent more than Saraburi province, next in the ranking and three times more than for all subsequent provinces in
162-651: Is now a historical site and a forest park at Doi Phaya Phipak, also known as Phaya Phipak. A controversial dam was planned in the central area of the range on the Yom River in Kaeng Suea Ten in 1991 but this project was later abandoned in the face of popular opposition. The debate about the dam, however, resumed in 2011. Two smaller dams on the Yom River may be built instead of the Kaeng Suea Ten mega-dam. Generally
189-504: Is on the Wang River about 38 kilometres (24 mi) from Lampang town. This article related to a river in Thailand is a stub . You can help Misplaced Pages by expanding it . Phi Pan Nam Range The Phi Pan Nam Range , also Pee Pan Nam , ( Thai : ทิวเขาผีปันน้ำ , pronounced [tʰīw kʰǎw pʰǐː pān náːm] ) is a 400 km (249 mi) long system of mountain ranges in
216-613: Is one of the regions of Thailand , covering the broad alluvial plain of the Chao Phraya River . It is separated from northeast Thailand ( Isan ) by the Phetchabun mountain range . The Tenasserim Hills separate it from Myanmar to the west. In the north it is bounded by the Phi Pan Nam Range , one of the hilly systems of northern Thailand . The area was the heartland of the Ayutthaya Kingdom (at times referred to as Siam ) and
243-495: Is sometimes listed as a separate region distinct from Central Thailand: sometimes only the four coastal provincesand sometimes the above list excluding Nakhon Nayok. None of those regions are political subdivisions; they are only geographical or statistical groupings. For economic statistics of Central Thailand by National Statistical Office (NSO) the following six provinces are listed: 1.Ang Thong 2.Ayutthaya 3.Chai Nat 4.Lopburi 5.Saraburi 6.Sing Buri However Nakhon Nayok province
270-412: Is still the dominant area of Thailand since it contains the world's most primate city , Bangkok . The grouping of Thai provinces into regions follow two major systems in which Thailand is divided into either four or six regions . In the six-region system, commonly used in geographical studies, central Thailand extends from Sukhothai and Phitsanulok Provinces in the north to the provinces bordering
297-429: Is the 1,694 metres (5,558 ft) high summit known as Doi Luang . It is in the northwestern area of the range near Phayao town, but there are a number of lesser mountains with the name ' Doi Luang ' throughout the range. Other noteworthy peaks are: The Phi Pan Nam range of mountains is not as high as neighboring mountain systems. It is, however, significant from the hydrographic point of view. These mountains divide
SECTION 10
#1732848442921324-570: The Bengal monitor deserve mention. A variety of birds are found in the range such as the blue-winged siva , white-rumped shama , scaly-breasted munia , black bulbul , blue-throated barbet , pin-striped tit-babbler , blue-bearded bee-eater , crested kingfisher , sooty-headed bulbul , coppersmith barbet , great hornbill , chestnut-headed bee-eater and the red-billed blue magpie . Central Plain of Siam Central Thailand (Central Plain) (historically also known as Siam or Dvaravati )
351-597: The Gulf of Thailand in the south, excluding the mountainous provinces bordering Myanmar to the west and the coastal provinces of the east. The four-region system includes provinces only as far north as Chai Nat , Sing Buri and Lopburi and extends west and east to the borders of Myanmar and Cambodia. The central region, as defined by Royal Forest Department in 2019, consists of 18 provinces (7 provinces of Greater Bangkok, 8 provinces of South Central Thailand and 3 provinces of Western Thailand). The total area of this central region
378-766: The Mekong from the Chao Phraya watershed and important rivers of Thailand have their source in the Phi Pan Nam area. Its name in Thai "ทิวเขาผีปันน้ำ" roughly means "the mountains of the spirits dividing the waters", 'spirits' (ผี phi ) here referring to ancient mountain deities of Thai folklore . Among the Thai rivers that originate in the Phi Pan Nam Mountains the main ones are the Wang and Yom River , with their tributaries such as
405-657: The Ngao , flowing towards the Chao Phraya. The Ing and the Lao , a tributary of the Kok River , flow northwards and are part of the Mekong basin. A great number of smaller rivers have their sources in mountains across the range. The Sirikit Dam is at the southeastern edge of the Phi Pan Nam mountains. There were formerly large teak forests in some areas of the range. However, at the beginning of
432-720: The Ping River near Mae Salit , Ban Tak District , north of the town of Tak . The Ping River is a tributary of the Chao Phraya River . Tributaries of the Wang include the Mo , Tui , Chang , and Soi Rivers The Wang basin is part of the Greater Ping Basin and the Chao Phraya Watershed . The total land area drained by the Wang River and its tributaries is 10,792 square kilometres (4,167 sq mi). Kiu Lom Dam (เขื่อนกิ่วลม)
459-678: The Wiang Ko Sai National Park but there have been no sightings in recent years. The green peafowl , now rare in the wilderness and threatened by habitat destruction throughout Southeast Asia , breeds in the central mountains of the range from January to March. Among the other animals, the Indian muntjac , Burmese hare , Indian hare , Indochinese flying squirrel , black giant squirrel , Java mouse-deer , jungle cat , mainland serow , masked palm civet , Asian palm civet , Malayan civet , bamboo rat and northern treeshrew , as well as
486-456: The 20th century concessions were given to logging companies and the forest cover dwindled dramatically especially in lowland areas between ranges. Deforestation also has affected areas that were cleared for local agriculture. Often wildfires are deliberately set off by local farmers, as well as by speculators who hire people to set forests on fire in order to claim land title deeds for the areas that have become " degraded forest ". Owing to
513-519: The Phi Pan Nam mountains. Both are on the south side of the range: the 130.2 m Huai Mae Lan Tunnel in Phrae Province and the 362.4 m Khao Phlueng Tunnel in Uttaradit and Phrae Provinces. In the mountains north of Thoeng , at the northeast end of the range, Hmong people live in small villages such as Ban Saen Than Sai and Ban Phaya Phripak, the latter on top of a mountain pass. The Phi Pan Nam Range
540-639: The area of the mountain system and both have fewer than 20,000 inhabitants each. Larger towns, like Chiang Rai and Uttaradit , are near the limits of the Phi Pan Nam Range, in the north and in the south, respectively. Phahonyothin Road , part of the AH2 Highway system, crosses the Phi Pan Nam Range area from north to south, between Tak and Chiang Rai. There are two railway tunnels of the Northern Line across
567-622: The eastern half of the Thai highlands . The range lies mostly in Thailand , although a small section in the northeast is within Sainyabuli and Bokeo provinces of Laos . In Thailand the range extends mainly across Chiang Rai , Phayao , Lampang , Phrae , Nan , Uttaradit and Sukhothai Provinces , reaching Tak Province at its southwestern end. The population density of the area is relatively low. Only two sizable towns, Phayao and Phrae , are within
SECTION 20
#1732848442921594-457: The forested areas of the Phi Pan Nam are known for their teak and bamboo forest. The mountain ranges are covered with tropical dry broadleaf forests , including sections of moist evergreen forest , mixed deciduous forest , dry deciduous forest , as well as hill evergreen forest at higher altitudes. There is great biodiversity in these mountains and their few unspoilt valleys, with a wide range of animal and plant species. The whole area of
621-578: The fragmented, although relatively undisturbed Phi Pan Nam forests are the fishing cat , sun bear , Asiatic black bear , Chinese pangolin , Indochinese tiger , sambar deer , gaur , Bengal slow loris , Sunda pangolin , as well as the Asiatic softshell turtle and the big-headed turtle . There are also Asian elephants in their natural habitat in a few protected areas, such as in the Si Satchanalai National Park . Formerly there were also in
648-779: The influence of the edge effect . Besides the national parks and wildlife reserves, there are the Huai Tak Teak Biosphere Reserve in Lampang Province and the Phu Langka Forest Park , located in Chiang Kham District and Pong District of Phrae Province. The main attractions of the forest park are Doi Hua Ling , Doi Phu Lang Ka and Doi Phu Nom ; the latter is a breast-shaped hill rising in an area of grassland . Formerly there were large extensions of teak ( Tectona grandis ) forests in
675-508: The range is part of the Central Indochina dry forests ecoregion . There are a number of protected areas in the Phi Pan Nam mountains, mostly encompassing mountainous terrain. These are patchily distributed across the range, and the largest national parks are in its central part, roughly around Phayao town. Protected sectors are typically surrounded by agricultural zones, often near roads and villages and thus with vast surfaces under
702-996: The range, including the highly appreciated golden teak variety. These forests are now much reduced. Forest fires are common during the dry season. Some of the other species of trees found in the forests of the mountains are: Afzelia xylocarpa , Ailanthus triphysa , Anisoptera costata , Artocarpus lacucha , Berrya ammonilla , Betula alnoides , Cinnamomum iners , Dalbergia oliveri , Dillenia pentagyna , Dipterocarpus obtusifolius , Dipterocarpus alatus , Dipterocarpus turbinatus , Duabanga grandiflora , Garcinia indica , Hopea odorata , Irvingia malayana , Lagerstroemia loudonii , Lagerstroemia calyculata , Lagerstroemia tomentosa , Lithocarpus densiflorus , Mangifera caloneura , Michelia champaca , Michelia floribunda , Pterocarpus macrocarpus , Schleichera oleosa , Terminalia bellirica , Toona ciliata , Vitex pinnata and Xylia xylocarpa . The endangered animal species sheltered by some of
729-575: The relative isolation of the area there was Communist insurgency in the mountainous forests of the Phi Pan Nam Range during the Cold War . A memorial was erected on 1,118 m high Doi Phaya Phipak (ดอยพญาพิภักดิ์) to commemorate the victims of the battles between troops of the Royal Thai Armed Forces and the insurgents of the Communist Party of Thailand between the 1950s and the 1970s. There
#920079