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Eastern Himalayas

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336:), and chilly winters mainly on higher elevations. The hot season commences around the middle of April reaching its maximum temperature in June, and finishing by the end of August. The average summer temperature is generally 20 °C (68 °F). The average annual rainfall is 10,000 mm (390 inches). A significantly large amount of snowfall is rare, and it is uncommon even at higher elevations. This belt of Himalayas is wetter as it receives more rain than the drier 390: 264: 103: 20: 502: 355:
most precipitation during winter takes the form of snowfall. Snow accumulation in the valleys greatly reduces the area's wintertime temperature. The northeast monsoon is the predominant feature of the Eastern Himalayan region's weather, while on the southern slopes cold season precipitation is more
94:, the western end of a group of uplands in Nepal. Most of the Sub-Himalayas are in Nepal; a small portion reaches into Sikkim, India and a fragment is in the southern half of Bhutan. The region's topography, in part, has facilitated the region's rich biological diversity and ecosystem structure. 623:. In 2017, after three years of field work and taxonomic studies, its classification was corrected by Bhutanese and Japanese researchers. It was theorised this misclassification may have arisen due to the finding that some Himalayan flora readily 249:
region was probably connected with it. The Chomolhari tourmaline granites of Bhutan, stretching westwards from the Paro Chu and adds much depth below the present surface, were formed during this period of uplift, fracture and subsidence.
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species and 8% of the world's bird species. Preserving this diverse wilderness is essential for the area's and the world's biodiversity. The area has many ecological projects intended to ensure the survival and growth of many species.
368:, and the hill slopes are cut by the locals into successive steps or terraces only a few meters broad, thus preventing water run-off and allowing spring crops to thrive. The region's economy relied mostly on 376:
levels for centuries due to the lack of capital, investor access, or entrepreneurial knowledge. Inhabitants also relied heavily on wild and semi-cultivated species for food and herbal medicines.
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The Buxa range of Indo-Bhutan is also a part of the ancient rocks of the Himalayas. The ancient folds, running mainly along an east-west axis, were worn down during a long period of
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metamorphic belt may be found overlying Chasilakha-Soraya gneiss in some places. Silurian metamorphics in other places suggest long denudation of the surface. This was the time of
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agriculture, supplemented by hunting, fishing and barter trade. Agricultural does not produce sufficient yields to meet local needs. The region's economy remained stagnant and at
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deposits are preserved in discontinuous basins. Limestone deposits also appear in Bhutan on the southern flanks of the Lower Himalayas. The rocks of the highlands are mainly
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deposits formed from seawater tides oscillating between land and sea levels. During subsequent periods, tertiary rocks were laid down. The
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mountain and large number of "active volcanoes" formation which act as backbone of the Himalayas and much of the movement in the
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has a more varied geomorphic history and pervasive topographic features than the Central Himalayas. In the southwest of the
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age, with limestones and shales of the same period in places. The core of the mountain is exposed across the centre, where
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rocks disappeared from the surface, except in its north near Hatisar in Bhutan and in the long trench extending from
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grasslands occur up to 4,500 m (14,800 ft)), and above this elevation snow and ice occupies the space.
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and Takhstasang gneiss outcrops are visible in the northwest and northeast, the latter extending to western
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The Eastern Himalayas sustain a diverse array of wildlife, including many rare species of fauna and flora.
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era the whole of the worn-down plateau was under sea. In this expansive shallow sea, which covered most of
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on the lower slopes up to 900 m (3,000 ft) in the foothills. At higher elevations, wet
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species. Himalayan high-elevation wetlands are also notable for their biodiversity.
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in the foothills of the Himalayas, making the country one of the world's greatest
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with each other and produce viable seeds, causing wider morphological diversity.
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Agricultural conditions vary throughout the region. In the highlands the soil is
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A political/geographical representation of the Eastern Himalayas. Image credits:
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Climate change in the Eastern Himalayas: observed trends and model projections
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The Eastern Himalayas consist of 6 distinct political/national territories:
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is in India and China at 2,000–3,300 m (6,600–10,800 ft), and
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are common around higher elevations, and also on the Tibetan plateau.
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times, possibly over a hundred million years. During this time the
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O'Neill, A.R.; Badola, H.K.; Dhyani, P.P.; Rana, S.K. (2017).
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The picture seen right is of the national flower of Bhutan
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basins, feature dense forests and provide habitat for
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The climate of the Eastern Himalayas is of a tropical
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(2010). 379: 858:– World Wildlife Fund projects 416:adding citations to reliable sources 383: 330:Köppen Climate Classification System 290:adding citations to reliable sources 257: 129:adding citations to reliable sources 96: 687:Jammu and Kashmir (union territory) 13: 513:) is the national flower of Bhutan 77: 14: 948: 849: 877:Mountain ranges of the Himalayas 388: 262: 101: 66:from June to September. It is a 802:Global Ecology and Conservation 822: 708: 359: 1: 702: 525:in its Himalayan region, and 7: 907:Mountain ranges of Pakistan 815:10.1016/j.gecco.2019.e00715 630: 496: 10: 955: 897:Mountain ranges of Myanmar 830:"Himalayas | Places | WWF" 253: 757:10.1186/s13002-017-0148-9 642:Indus-Yarlung suture zone 912:Mountain ranges of Tibet 902:Mountain ranges of Nepal 892:Mountain ranges of India 657:Ecology of the Himalayas 937:Physiographic divisions 887:Mountain ranges of Asia 796:O'Neill, A. R. (2019). 682:Indian Himalayan Region 662:Geology of the Himalaya 461:Darjeeling Sub-Himalaya 48:Tibet Autonomous Region 882:Flora of East Himalaya 514: 27: 652:Lower Himalayan Range 647:Main Himalayan Thrust 591:Macaca arunachalensis 539:biodiversity hotspots 511:Meconopsis gakyidiana 504: 72:biocultural diversity 64:monsoon of South Asia 22: 672:Geography of Myanmar 412:improve this section 370:shifting cultivation 286:improve this section 125:improve this section 68:biodiversity hotspot 34:extend from eastern 697:Indo-Gangetic Plain 567:tropical rainforest 380:Political divisions 927:Regions of Myanmar 677:Eastern South Asia 621:Meconopsis grandis 515: 343:In the valleys of 28: 856:Eastern Himalayas 587:Arunachal macaque 579:Himalayan vulture 561:The most diverse 527:Indian rhinoceros 519:Wildlife in Nepal 484:Arunachal Pradesh 448: 447: 440: 338:Western Himalayas 326:montane ecosystem 322: 321: 314: 220:Arunachal Pradesh 161: 160: 153: 32:Eastern Himalayas 944: 932:Regions of Nepal 922:Regions of India 844: 843: 841: 839: 826: 820: 819: 817: 793: 780: 779: 769: 759: 735: 726: 725: 723: 712: 637:Western Himalaya 575:Asian black bear 443: 436: 432: 429: 423: 392: 384: 317: 310: 306: 303: 297: 266: 258: 156: 149: 145: 142: 136: 105: 97: 954: 953: 947: 946: 945: 943: 942: 941: 862: 861: 852: 847: 837: 835: 828: 827: 823: 794: 783: 736: 729: 721: 713: 709: 705: 633: 499: 466:Sikkim (Indian) 444: 433: 427: 424: 409: 393: 382: 362: 318: 307: 301: 298: 283: 267: 256: 157: 146: 140: 137: 122: 106: 92:Singalila Ridge 80: 78:Geologic strata 70:, with notable 40:Northeast India 17: 12: 11: 5: 952: 951: 940: 939: 934: 929: 924: 919: 914: 909: 904: 899: 894: 889: 884: 879: 874: 860: 859: 851: 850:External links 848: 846: 845: 821: 781: 727: 706: 704: 701: 700: 699: 694: 689: 684: 679: 674: 669: 664: 659: 654: 649: 644: 639: 632: 629: 595:Rhesus macaque 531:Asian elephant 498: 495: 494: 493: 490:Garhwal/Kumaon 487: 481: 475: 469: 463: 458: 446: 445: 396: 394: 387: 381: 378: 361: 358: 320: 319: 270: 268: 261: 255: 252: 207:rocks, mainly 181:Jaldhaka River 159: 158: 109: 107: 100: 79: 76: 15: 9: 6: 4: 3: 2: 950: 949: 938: 935: 933: 930: 928: 925: 923: 920: 918: 915: 913: 910: 908: 905: 903: 900: 898: 895: 893: 890: 888: 885: 883: 880: 878: 875: 873: 870: 869: 867: 857: 854: 853: 834: 831: 825: 816: 811: 807: 803: 799: 792: 790: 788: 786: 777: 773: 768: 763: 758: 753: 749: 745: 741: 734: 732: 720: 719: 711: 707: 698: 695: 693: 692:Transhimalaya 690: 688: 685: 683: 680: 678: 675: 673: 670: 668: 667:Sivalik Hills 665: 663: 660: 658: 655: 653: 650: 648: 645: 643: 640: 638: 635: 634: 628: 626: 622: 618: 616: 610: 608: 604: 600: 596: 592: 588: 584: 580: 576: 572: 568: 564: 559: 556: 552: 548: 547:Gandaki River 544: 540: 536: 535:water buffalo 532: 528: 524: 520: 512: 508: 503: 491: 488: 485: 482: 479: 476: 473: 470: 467: 464: 462: 459: 456: 453: 452: 451: 442: 439: 431: 428:February 2019 421: 417: 413: 407: 406: 402: 397:This section 395: 391: 386: 385: 377: 375: 371: 367: 357: 354: 350: 346: 341: 339: 335: 331: 327: 316: 313: 305: 302:February 2019 295: 291: 287: 281: 280: 276: 271:This section 269: 265: 260: 259: 251: 248: 244: 240: 236: 232: 228: 223: 221: 217: 214: 210: 206: 202: 198: 194: 190: 186: 182: 178: 174: 173:carboniferous 170: 167:lasting into 166: 155: 152: 144: 134: 130: 126: 120: 119: 115: 110:This section 108: 104: 99: 98: 95: 93: 89: 88:Sub-Himalayas 85: 75: 73: 69: 65: 61: 58:and northern 57: 53: 49: 45: 41: 37: 33: 26: 21: 836:. Retrieved 833: 824: 805: 801: 747: 743: 717: 710: 620: 613: 611: 598: 590: 563:cloud forest 560: 523:snow leopard 516: 510: 474:Sub-Himalaya 449: 434: 425: 410:Please help 398: 363: 342: 323: 308: 299: 284:Please help 272: 233:and Bhutan, 224: 162: 147: 138: 123:Please help 111: 82:The Eastern 81: 31: 29: 551:Koshi River 374:subsistence 360:Agriculture 356:important. 185:Torsa River 141:August 2020 866:Categories 838:29 January 808:: e00715. 703:References 617:gakyidiana 615:Meconopsis 599:M. mulatta 507:blue poppy 247:palaeozoic 222:in India. 197:sandstones 169:cretaceous 165:denudation 917:East Asia 872:Himalayas 750:(1): 21. 625:hybridize 555:butterfly 521:includes 399:does not 273:does not 205:Paleozoic 189:limestone 112:does not 90:lies the 84:Himalayas 776:28356115 631:See also 607:pheasant 543:Ghaghara 497:Wildlife 492:Himalaya 486:Himalaya 480:Himalaya 468:Himalaya 366:morainic 227:Mesozoic 213:Silurian 209:Cambrian 201:Devonian 187:, where 767:5372287 603:sunbird 420:removed 405:sources 345:Rangeet 294:removed 279:sources 254:Climate 225:In the 199:of the 177:permian 133:removed 118:sources 60:Myanmar 38:across 774:  764:  593:) and 581:, and 571:páramo 478:Bhutan 455:Nepali 353:Chumbi 351:, and 349:Teesta 243:Alpine 216:slates 52:Yunnan 46:, the 44:Bhutan 25:ICIMOD 722:(PDF) 583:pikas 472:Assam 235:chalk 231:Assam 56:China 36:Nepal 840:2016 772:PMID 605:and 549:and 533:and 505:The 403:any 401:cite 277:any 275:cite 239:Paro 211:and 193:coal 191:and 175:and 116:any 114:cite 30:The 810:doi 762:PMC 752:doi 414:by 288:by 183:to 127:by 54:in 50:to 868:: 832:. 806:20 804:. 800:. 784:^ 770:. 760:. 748:13 746:. 742:. 730:^ 577:, 545:, 529:, 347:, 340:. 334:Af 74:. 42:, 842:. 818:. 812:: 778:. 754:: 597:( 589:( 509:( 441:) 435:( 430:) 426:( 422:. 408:. 332:( 315:) 309:( 304:) 300:( 296:. 282:. 154:) 148:( 143:) 139:( 135:. 121:.

Index

A political/geographical representation of the Eastern Himalayas (credits: ICIMOD)
ICIMOD
Nepal
Northeast India
Bhutan
Tibet Autonomous Region
Yunnan
China
Myanmar
monsoon of South Asia
biodiversity hotspot
biocultural diversity
Himalayas
Sub-Himalayas
Singalila Ridge

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sources
improve this section
adding citations to reliable sources
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denudation
cretaceous
carboniferous
permian
Jaldhaka River
Torsa River
limestone
coal

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