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1.
THE ORIGIN AND CHARACTERISTICS OF THE GLACIAL DEBRIS FLOW IN THE DUKU HIGHWAY OF TIANSHAN MOUNTAINS，
ＴＨＥＯＲＩＧＩＮＡＮＤＣＨＡＲＡＣＴＥＲＩＳＴＩＣＳＯＦＴＨＥＧＬＡＣＩＡＬＤＥＢＲＩＳＦＬＯＷＩＮＴＨＥＤＵＫＵＨＩＧＨＷＡＹＯＦＴＩＡＮＳＨＡＮＭＯＵＮＴＡＩＮＳ，ＣＨＩＮＡ￥ＸｉｏｎｇＨｅｉｇａｎｇ（ＤｅｐａｒｔｍｅｎｔｏｆＧｅｏｇｒａｐｈｙ... 相似文献
2.
ＡＮＡＮＡＬＹＳＩＳＯＦＷＡＴＥＲＲＥＳＯＵＲＣＥＣＨＡＲＡＣＴＥＲＩＳＴＩＣＳＯＦＴＨＥＲＩＶＥＲＳＩＮＴＨＥＮＯＲＴＨＥＲＮＳＬＯＰＥＯＦＴＨＥＫＵＮＬＵＮＭＯＵＮＴＡＩＮＳＸｕＹｏｕｐｅｎｇ（许有鹏）；ＧａｏＹｕｎｊｕｅ（高蕴珏）（Ｄｅｐａｒｔ... 相似文献
3.
樊杰 《中国地理科学(英文版)》1994,4(1):43-54
ＡＮＡＮＡＬＹＳＩＳＯＦＴＨＥＰＯＬＩＣＹ－ＭＡＫＩＮＧＩＮＲＥＧＵＬＡＴＩＮＧＴＨＥＩＮＤＵＳＴＲＩＡＬＳＴＲＵＣＴＵＲＥＡＮＤＤＩＳＴＲＩＢＵＴＩＯＮＩＮＴＲＡＤＩＴＩＯＮＡＬＩＮＤＵＳＴＲＩＡＬＢＡＳＥＩＮＭＩＤＤＬＥＬＩＡＯＮＩＮＧＰＲＯＶＩ... 相似文献
4.
ＴＨＥＩＮＶＥＳＴＭＥＮＴＣＩＲＣＵＭＳＴＡＮＣＥＳＡＮＤＩＴＳＣＬＡＳＳＩＦＩＣＡＴＩＯＮＡＰＰＲＡＩＳＡＬＯＦＣＨＡＮＧＪＩＡＮＧＲＩＶＥＲＤＥＬＴＡＸｕＧａｎｇ（许刚）ＳｈｅＺｈｉｘｉａｎｇ（佘之祥）ＮａｎｊｉｎｇＩｎｓｔｉｔｕｔｅｏｆＧｅｏｇ... 相似文献
5.
ＦＡＣＴＯＲＳ ＡＦＦＥＣＴＩＮＧ ＦＯＲＭＡＴＩＯＮ ＡＮＤ ＤＥＶＥＬＯＰＭＥＮＴ ＯＦ ＴＨＥ ＵＲＢＡＮ ＩＮＤＵＳＴＲＩＡＬ ＤＩＳＴＲＩＣＴ ＩＮ ＣＨＩＮＡ──Ａ Ｃａｓｅ ＳｔｕｄｙｏｎＣａｏｈｅｊｉｎｇＨｉ－ＴｅｃｈＰａｒｋｉｎＳｈ... 相似文献
6.
THE CAUSES AND DEVELOPMENTAL TREND OF DESERTIFICATION IN THE MIDDLE REACHES OF THE YARLUNG ZANGBO RIVER AND ITS TWO TRIBUTARIES IN XIZANG 总被引：3，自引：0，他引：3
ＴＨＥＣＡＵＳＥＳＡＮＤＤＥＶＥＬＯＰＭＥＮＴＡＬＴＲＥＮＤＯＦＤＥＳＥＲＴＩＦＩＣＡＴＩＯＮＩＮＴＨＥＭＩＤＤＬＥＲＥＡＣＨＥＳＯＦＴＨＥＹＡＲＬＵＮＧＺＡＮＧＢＯＲＩＶＥＲＡＮＤＩＴＳＴＷＯＴＲＩＢＵＴＡＲＩＥＳＩＮＸＩＺＡＮＧＤｏｎｇＧｕａｎｇ... 相似文献
7.
8.
ＴＨＥＣＨＡＲＡＣＴＥＲＩＳＴＩＣ，ＤＩＳＴＲＩＢＵＴＩＯＮＡＮＤＣＡＵＳＩＮＧＦＡＣＴＯＲＣＯＦＴＨＥＤＩＳＡＢＬＥＤＩＮＨＥＮＡＮＰＲＯＶＩＮＣＥ￥ＬｉｎＦｕｒｕｉ（林富瑞）（ＨｅｎａｎＡｃａｄｅｍｙｏｆＳｃｉｅｎｃｓ，Ｚｈｅｎｇｚｈｏｕ４５００... 相似文献
9.
THE VERTICAL DISTRIBUTION OF AGROTOPOCLIMATIC RESOURCES IN THE WARM SECTORS OF THE THREE GORGES AREA OF THE CHANGJIANG RIVER 总被引：1，自引：0，他引：1
罗洪，邓先瑞ＴＨＥＶＥＲＴＩＣＡＬＤＩＳＴＲＩＢＵＴＩＯＮＯＦＡＧＲＯＴＯＰＯＣＬＩＭＡＴＩＣＲＥＳＯＵＲＣＥＳＩＮＴＨＥＷＡＲＭＳＥＣＴＯＲＳＯＦＴＨＥＴＨＲＥＥＧＯＲＧＥＳＡＲＥＡＯＦＴＨＥＣＨＡＮＧＪＩＡＮＧＲＩＶＥＲ￥ＤｅｎｇＸｉａｎｒｕｉ；... 相似文献
10.
许学工 《中国地理科学(英文版)》1996,6(3):212-222
ＴＨＥＳＹＳＴＥＭＡＴＩＣＳＴＲＵＣＴＵＲＥＯＦＴＨＥＥＮＶＩＲＯＮＭＥＮＴＡＮＤＲＥＳＯＵＲＣＥＳＯＦＴＨＥＨＵＡＮＧＨＥＲＩＶＥＲＤＥＬＴＡ￥ＸｕＸｕｅｇｏｎｇ（ＤｅｐａｒｔｍｅｎｔｏｆＧｅｏｇｒａｐｈｙ，ＰｅｋｉｎｇＵｎｉｖｅｒｓｉｔｙ，Ｂｅｉ... 相似文献
11.
On the basis of lacustrine sedimentary profile of Ebinur Lake, sequences of evolution of paleoclimate and paleoenvironment
in Ebinur Lake area have been rebuilt by analysing the sedimentary stratigraphy, bio-stratigraphy and geochemistry as well
as the chronological records. The results show that, during the last 10 ka years, the general change trends of the paleoclimate
in E-binur Lake area can be divided into three stages: (1) 10. 2 – 8.3 ka B. P., a warm-cool dry climate stage; (2) 8.3–3.5
ka B. P., a warmer moist climate stage (specially, 7.3–6.4 ka B. P., a relatively stable humid temperate stage); (3) 3.5 ka
B. P. —present, adraught temperate climate stage, similar to the present climate. In addition, there existed clearly several
times of secondary undulations of dry-humid climate, i.e. 8.3 ka and 7.3 ka for dry climate 相似文献
12.
ImODareNThelast3Oycars'~tilicproductinnofsalts,andnawh,andexpIorationofsaltlakes,haveyboedmuCinfonnationonQarhanInke.Thereisliteraturedetailingthelakebpaleo-dhate,paboenvbonment,paboerelogy,evolution,etC-since5OkaB.P.(ZhengPenShinCtal.,l993,ChenKereoetal.,l986;HuangQiCtal.,l98l),butfewonthebefore5OkaB-P-eventS.CoreCk6thattheFirsttheloghalExplorationTeamoftheQinghaibologicalBu-rmudrilledat9lOmdePthinQarhanLakeyallasetofcontinuouslylacustrinetali-rnentdataveryvaluableforstudyofpabo… 相似文献
13.
Isotopic evidence for holocene climatic changes in Bosten Lake, Southern Xinjiang, China 总被引：2，自引：0，他引：2
ＩＳＯＴＯＰＩＣＥＶＩＤＥＮＣＥＦＯＲＨＯＬＯＣＥＮＥＣＬＩＭＡＴＩＣＣＨＡＮＧＥＳＩＮＢＯＳＴＥＮＬＡＫＥ,ＳＯＵＴＨＥＲＮＸＩＮＪＩＡＮＧ,ＣＨＩＮＡＺｈｏｎｇＷｅｉ（钟巍）ＸｉｏｎｇＨｅｉｇａｎｇ（熊黑钢）ＤｅｐａｒｔｍｅｎｔｏｆＧｅｏｇｒａｐ... 相似文献
14.
Information on the palaeoenvironment from Late Pleistocene to Holocene in northwestern Yannan Plateau has been deduced from a study of a 28.81m-long core taken from Napahai Lake.The results from Relative Brightness In-dex(RBI) as well as those from the lithological analyses of bulk sediments,total organic carbon and granulometric analy-ses have been used to reconstruct the environmental and climatic evolution of the area.The ages were provided by three ^14C datings.The record suggested a climate fluctuation between warm-dry and cool-wet from ca.57 to 32ka B.P.which led a shallowing and swamping of the lake.The water level again increased quickly at ca.32ka B.P.,reached itˊs peak during LGM(Last Glacial Maximum,ca.18-20kaB.P.)and remained relative high until ca.15kaB.P.The high wa-ter level at LGM is attributed to cold-wet conditions.The area experienced an abrupt and unstable climatic changes dur-ing the transition period form 15 to 10ka B.P.with a dominated littoral environment.Awarm-dry climate led to the contrac-tion of the lake during the Holocene and reed-swamps became dominant..After a minor wet-cool pulse during the Late Holocene,the modern climate became to be established. 相似文献
15.
Based on the δ13C and δ18O fluctuation of lacustrine carbonate, CaCO3 content and sporo-pollen data, a palaeoclimatic history of Bosten Lake during the Holocene has been outlined, several stages
of climatic changes are divided, and the following result es are obtained: (1) Palaeoclimatic changes revealed by carbonate
isotope around Bosten Lake are basically identical with that revealed by other geological records in Xinjiang. Environmental
changes presented apparent Westlies Style model: during cold period, relative humidity increased, δ18O, δ13C and CaCO3 appeared low; but in warm periods, the dry regime aggravated. (2) The temperature reflected by δ18O exist evident features being increase in the late period during the Holocene. Together with the δ13C, pollen and CaCO3 analyses, several cold and warm phases which are of broad regional significance can be identified. The warm peaks occurred
at about 11.0 ka B.P., 9.4 ka B.P., 7.5 ka B.P., 5.0 ka B.P., 3.0 ka B.P. and 2.0 ka B.P.; the cold peaks at 11.5 ka B.P.,
10.5 ka B.P., 8.8 ka B.P., 5.5 ka B.P., 3.3 ka B.P., 2.2 ka B.P. and 1.5 ka B.P.. (3) Several climatic events with the nature
of “abrupt climatic changes” are revealed in the periods of 11.0 ka B.P. −10.5 ka B.P., 9.4 ka B.P. −8.8 ka B.P., 5.5 ka B.P.
−5.0 ka B.P. and 2.0 ka B.P. −1.5 ka B.P.. (4) The results show that carbonate isotopic record of lacustrine sediment in arid
area is very sensitive to climatic changes, and may be play a very important role in understanding the features and mechanism
of palaeoclimatic changes. 相似文献
16.
Depositing ages of sediment in Core Ck6 of Qarhan Lake were dertermined by14C,230Th and geomagnetic polarity methods. Results of analyses of stable isotopes composition in carbonate and organic matter were
used to set up a model of fluctuating paleoclimate (since 750 ka B. P.) consisting of 11 warm and humid stages and 10 dry
and cold stages. 相似文献
17.
Sporo-pollen Assemblage and Paleoclimate Events in Shelf Area of the Southern Yellow Sea Since 1.5 ka B.P. 总被引：1，自引：0，他引：1
Based on the authors‘ 1986 to 1994 sporo-pollen assemblage analysis in the southern Yellow Sea area, data from 3 main cores were studied in combination with ^14C, palaeomagnetic and thermoluminescence data. The evolution of the paleoclimate environments in the southern Yellow Sea since 15ka B.P. was revealed that, in deglaciation of the last glacial period, the climate of late glaciation transformed into that of postglaciation, accompanied by a series of violent climate fluctuations. These evolution events happened in a global climate background and related to the geographic changes in eastern China. We distinguished three short-term cooling events and two warming events. Among them, the sporo-pollen assemblage of subzone A1 showed some cold climate features indicating that a cooling event occurred at about 15 - 14ka. B .P. in early deglaciation. This subzone corresponds to the Oldest Dryas. In subzone A3 , many drought-enduring herbal pollens and some few pollens of cold-resistant Picea, Abies, etc. were found, which indicated that a cooling event, with cold and arid climate, occurred at about 12- 11ka. B.P. in late deglaciation. This subzone corresponds to the Younger Dryas. The sporo-pollen assemblage of zone B showed warm and arid climate features in postglaciation. Although the assemblage of subzone B2 indicated a cold and arid climate environment, the development of flora in subzone B2 climate was less cold than that in A3 . Subzone B2 indicated a cooling event which occurred at about 9ka B.P. in early Holocene. Subzone A2, with some distinct differences from subzone A1 and A3 , indicated a warming event which occurred at 14 - 13ka. B.P. and should correspond to a warming fluctuation. The sporo-pollen assemblage of zone C showed features of warm-moist flora and climate, and indicated a warming event which universally occurred along the coast of eastern China at 8 - 3ka B.P. in middle Holocene, and its duration was longer than that of any climate events mentioned above. This period was climatic optimum and belonged to an altithermal period in postglaciation. 相似文献
18.
Traditionally, the mid-Holocene in most parts of China was thought to be warmer with higher precipitation, resulting from a strong Asian summer monsoon. However, some recent researches have proposed a mid-Holocene drought interval of millennial-scale in East Asian monsoon margin areas. Thus whether mid-Holocene was dry or humid remains an open issue. Here, Zhuyeze palaeolake, the terminal lake of the Shiyang River Drainage lying in Asian monsoon marginal areas, was selected for reconstructing the details of climate variations during the Holocene, especially mid-Holocene, on the basis of a sedimentological analysis. Qingtu Lake (QTL) section of 6.92m depth was taken from Zhuyeze palaeolake. Multi-proxy analysis of QTL section, including grain size, carbonate, TOC, C/N and δ13C of organic matter, was used to document regional climatic changes during 9-3 cal ka B.P. The record shows a major environmental change at 9.0-7.8 cal ka B.P., attributed to a climate trend towards warmth and humidity. This event was followed by a typical regional drought event which occurred during 7.8-7.5 cal ka B.P. And a warm and humid climate prevailed from 7.5 to 5.0 cal ka B.P., attributed to the warm/humid Holocene Optimum in this region. After that, the climate gradually became drier. Moreover, comparison of the climate record from this paper with the summer insolation at 30°N indicates that the climate pattern reflecting the Asian monsoon changes was caused by insolation change. 相似文献
19.
TheestuarineplainoftheJiulongRiver,whichisthesecondlargestrivernexttotheMinjiangRiverinFujianPrc)vince,intervenesbetweenXi~enandZhangzhoucitiesinthesouthoftheprovince.'I'heplainconsistsofthreeparts:thenorthernplain,thesouthernPlainandZiniIsles.Withsoutllcrn--Subtr<)picoceanicm(>nasexinclimate,itdevelol>saregionalvegetationtypeofeveTgreen13r(Jad--lcav(3dfores[,ofwhicll,however,mosthasbeendestroyedbyhumanbeing.Nowaday-s.shruborgrasslandvegetationcanbeseenonthehillsintheviciTlily'ofthisarea… 相似文献
20.
Widespread aeolian sediments have been found in the middle reaches of the Yarlung Zangbo River, China. The grain-size characteristics of sediments from Cha'er Section in the area were analyzed. The results show that the section include one stratum of paleo-mobile dunes, four strata of paleo-semi-fixed dunes, two strata of paleo-fixed dunes, one stratum of sandy immature soils. The paleo-mobile and paleo-somi-fixed dune sand in this section are similar to modern aeolian sand in either grain-size composition or Mz and σ distribution. Compared the above types of dunes each other, the content of sand substance decreases, while the content of silt and clay increases for palco-fixed dunes and sandy immature soils. Combined with age data for each stratum, the analysis shows that these strata are the products of climate changes and the evolution of aeolian landforms. The evolutionary sequence of the paleoclimate and of acolian activities in the valley since 8600 yr B.P. reveals four stages: 8600-5700 yr B.P., when the paleoclimate was cold and dry, with strong winds, thereby activating dunes; 5700-3600 yr B.P., when it was warm and wet, with weak winds, causing dunes to undergo soil-forming processes; 3600-1900 yr B.P., when climate shifted from cold-dry with strong winds to warm-wet with weak winds, and activated dunes were fixed again; and 1900 yr B.P. -present, when the climate became fine, with weak winds, fixing dunes again. 相似文献