In the context of global climate change, this study reviews and discusses the three aspects of ecology, economic development of surrounding communities, ecological balance and snow mountain activities in the Haba Snow...In the context of global climate change, this study reviews and discusses the three aspects of ecology, economic development of surrounding communities, ecological balance and snow mountain activities in the Haba Snow Mountain Reserve through literature collation and research. 1) The Hengduan Mountain Plate of Haba Snow Mountain is affected by the high altitude temperate monsoon and is sensitive to climate change. There has been continuous glacier melting and snow line fluctuations. Although there is no forest line movement, the vegetation at the junction of the forest line has increased. 2) Human activities in the Haba Snow Mountain Reserve have shown an active trend, and the Biomass in various ecosystems in the region is inversely correlated. 3) Climate change will have a negative impact on landscape attraction and tourism safety in snowy mountain areas. 4) Haba Snow Mountain Reserve needs more perfect biological species statistical research and dynamic vegetation research to support the establishment of a perfect ecological protection strategy and ecological early warning in the region. 5) As the frequency of tourist activities in the Haba Protected Area increases, corresponding environmental protection signage, garbage cleaning methods, and tourist education have not been synchronizedly improved.展开更多
Using research approaches such as questionnaire investigation, interview, and Participatory Rural Appraisal (PAR), the relationship between Haba Snow Mountain Nature Reserve and peripheral communities was studied. The...Using research approaches such as questionnaire investigation, interview, and Participatory Rural Appraisal (PAR), the relationship between Haba Snow Mountain Nature Reserve and peripheral communities was studied. The results showed that there are lots of conflicts between Haba Snow Mountain Nature Reserve and peripheral communities. On the one hand, conservation of natural environment brings inconvenience to the development of peripheral communities, such as limiting the use of resources, constraining space of development, resulting in economic losses, reducing tourist income, and low compensation. On the other hand, peripheral communities' development threats conservation of the natural environment, for instance, illegal deforestation, illegal mining, over-harvesting, over-grazing and non-ecotourism. Therefore, effective suggestions were given as "scientific planning of functional areas, enhancing economic compensation, devoting more in ecotourism development, and realizing the cooperation of communities".展开更多
The Yulong and Haba snowcapped ranges in the southeast side of the Qinghai—Xizang (Tibet) Plateau are situated structurally in a corner between the Dianxi Block to the west, the Yangzi Landmass to the southeast and S...The Yulong and Haba snowcapped ranges in the southeast side of the Qinghai—Xizang (Tibet) Plateau are situated structurally in a corner between the Dianxi Block to the west, the Yangzi Landmass to the southeast and Songpan—Ganzi folded belts to the north. Deformations in this area are strongly effected by the Tethys—Himalaya movement and defined by the Jinshajiang\|Honghe fault in the west and the Xiaojinhe fault in the southeast. A Jinshajiang river cut through in the middle with about 200 meters drop height that gives an exposed cross section.The Yulong—Haba range is an N—S trending anticline (F 3/D 3) comprising a metamorphic core of unknown ages and a sedimentary cover from mid\| Devonian onwards. Contact between the metamorphic core and the cover sequence is structurally. Although there is no evidence being found for the unconformity interface, deformation in the core, dominated by mica\|quartz schists, phyllites and quartzite, and the cover rocks, dominated by marbles, are different. The core rocks underwent a metamorphism with well developed foliations (S 1/D 1) in a greenschist facies condition. Occasionally an intrafolial fold (F 1, folded S 0) present in the S 1 layering. The S1 foliation was re\|folded by recumbent folds (F 2/D 2). Orientations of the axes of F 2 recumbent folds, the crenulation and mineral lineations now are shallowly plunged to S or N with angles less than 20° since the intensity of the D 3 deformation, during which both the core and cover rocks are involved to form the regional upright F 3 fold. All of the L\|S fabrics formed during D 2 in the core rocks are cut off by a set of near E—W or SWW—NEE trending normal faults that showing a top to the SSE extensional movement occurred during the D 3 event as a result of syn\|thickening extension (D 3′). Deformations D 4 are characterized by (1) numbers of near S—N trending high\|angle normal faults, and (2) interlayer gliding in the cover rocks, and lower angle detachment zones in the contact. Movement indicators in the D 4 structures showing a NEE in the east side of the F 3 fold, and a SWW in the west side, normal sense of shear that demonstrated a post\|thickening extension in the area.展开更多
The regional geologic and geomorphic observations show that an active arcuate normal fault constitutes the main boundary fault of the Haba-Yulong Snow Mountains (HYSM). This fault is called eastern piedmont fault of H...The regional geologic and geomorphic observations show that an active arcuate normal fault constitutes the main boundary fault of the Haba-Yulong Snow Mountains (HYSM). This fault is called eastern piedmont fault of Haba-Yulong Snow Mountains (HYPF). The fault consists of two segments with differential trend; the northern segment is NW-trending and NE-dipping and the southern section is S-N trending and E-dipping. Three sets of fault scarps cutting late Quaternary landforms and their dating results indicate that the fault is a prominent Holocene active fault and its throw rates are 0.3―1.4 mm/a during late Quaternary. The geometry and kinematics of the fault suggest that the arcuate normal faulting or rifting are typical surface deformation pattern at the two tips of the Z-shaped rift zone of northwestern Yunnan, which is related to regional east-west extension accompanying clockwise rota- tion of micro-block.展开更多
文摘In the context of global climate change, this study reviews and discusses the three aspects of ecology, economic development of surrounding communities, ecological balance and snow mountain activities in the Haba Snow Mountain Reserve through literature collation and research. 1) The Hengduan Mountain Plate of Haba Snow Mountain is affected by the high altitude temperate monsoon and is sensitive to climate change. There has been continuous glacier melting and snow line fluctuations. Although there is no forest line movement, the vegetation at the junction of the forest line has increased. 2) Human activities in the Haba Snow Mountain Reserve have shown an active trend, and the Biomass in various ecosystems in the region is inversely correlated. 3) Climate change will have a negative impact on landscape attraction and tourism safety in snowy mountain areas. 4) Haba Snow Mountain Reserve needs more perfect biological species statistical research and dynamic vegetation research to support the establishment of a perfect ecological protection strategy and ecological early warning in the region. 5) As the frequency of tourist activities in the Haba Protected Area increases, corresponding environmental protection signage, garbage cleaning methods, and tourist education have not been synchronizedly improved.
基金Supported by the Program of China Huaneng Group: Comprehensive Scientific Research on the Haba Snow Mountain in Yunnan Province~~
文摘Using research approaches such as questionnaire investigation, interview, and Participatory Rural Appraisal (PAR), the relationship between Haba Snow Mountain Nature Reserve and peripheral communities was studied. The results showed that there are lots of conflicts between Haba Snow Mountain Nature Reserve and peripheral communities. On the one hand, conservation of natural environment brings inconvenience to the development of peripheral communities, such as limiting the use of resources, constraining space of development, resulting in economic losses, reducing tourist income, and low compensation. On the other hand, peripheral communities' development threats conservation of the natural environment, for instance, illegal deforestation, illegal mining, over-harvesting, over-grazing and non-ecotourism. Therefore, effective suggestions were given as "scientific planning of functional areas, enhancing economic compensation, devoting more in ecotourism development, and realizing the cooperation of communities".
文摘The Yulong and Haba snowcapped ranges in the southeast side of the Qinghai—Xizang (Tibet) Plateau are situated structurally in a corner between the Dianxi Block to the west, the Yangzi Landmass to the southeast and Songpan—Ganzi folded belts to the north. Deformations in this area are strongly effected by the Tethys—Himalaya movement and defined by the Jinshajiang\|Honghe fault in the west and the Xiaojinhe fault in the southeast. A Jinshajiang river cut through in the middle with about 200 meters drop height that gives an exposed cross section.The Yulong—Haba range is an N—S trending anticline (F 3/D 3) comprising a metamorphic core of unknown ages and a sedimentary cover from mid\| Devonian onwards. Contact between the metamorphic core and the cover sequence is structurally. Although there is no evidence being found for the unconformity interface, deformation in the core, dominated by mica\|quartz schists, phyllites and quartzite, and the cover rocks, dominated by marbles, are different. The core rocks underwent a metamorphism with well developed foliations (S 1/D 1) in a greenschist facies condition. Occasionally an intrafolial fold (F 1, folded S 0) present in the S 1 layering. The S1 foliation was re\|folded by recumbent folds (F 2/D 2). Orientations of the axes of F 2 recumbent folds, the crenulation and mineral lineations now are shallowly plunged to S or N with angles less than 20° since the intensity of the D 3 deformation, during which both the core and cover rocks are involved to form the regional upright F 3 fold. All of the L\|S fabrics formed during D 2 in the core rocks are cut off by a set of near E—W or SWW—NEE trending normal faults that showing a top to the SSE extensional movement occurred during the D 3 event as a result of syn\|thickening extension (D 3′). Deformations D 4 are characterized by (1) numbers of near S—N trending high\|angle normal faults, and (2) interlayer gliding in the cover rocks, and lower angle detachment zones in the contact. Movement indicators in the D 4 structures showing a NEE in the east side of the F 3 fold, and a SWW in the west side, normal sense of shear that demonstrated a post\|thickening extension in the area.
基金Supported by Department of International Cooperation of Ministry of Science and Technology of China (Grant No. 2006DFA21320)China Geological Survey of Ministry of Land and Resources (Grant No. 1212010541404)National Natural Science Foundation of China (Grant No. 40501006)
文摘The regional geologic and geomorphic observations show that an active arcuate normal fault constitutes the main boundary fault of the Haba-Yulong Snow Mountains (HYSM). This fault is called eastern piedmont fault of Haba-Yulong Snow Mountains (HYPF). The fault consists of two segments with differential trend; the northern segment is NW-trending and NE-dipping and the southern section is S-N trending and E-dipping. Three sets of fault scarps cutting late Quaternary landforms and their dating results indicate that the fault is a prominent Holocene active fault and its throw rates are 0.3―1.4 mm/a during late Quaternary. The geometry and kinematics of the fault suggest that the arcuate normal faulting or rifting are typical surface deformation pattern at the two tips of the Z-shaped rift zone of northwestern Yunnan, which is related to regional east-west extension accompanying clockwise rota- tion of micro-block.
