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Experimental remolding on the caprock's 3. strain field of the Indosinian-Yanshanian epoch in Tongling deposit concentrating area

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Science china Earth Sciences 2005年第7期48卷 863-874页

作者： DENG Jun1,HUANG Dinghua2,WANG Qingfei1,WAN Li1,SUN Zhongshi3.YANG Liqiang1 & GAO Bangfei1 1. State Key Laboratory of Geological Processes and Mineral resources,china University of Geosciences,Beijing 100083.china 2. Faculty of Earth Sciences,china University of Geosciences,Wuhan 43.074,china 3. Department of Earth Sciences,Jilin University,Changchun 13.061,china State Key Laboratory of Geological Processes and Mineral resources China University of Geosciences Beijing 100083 China Faculty of Earth Sciences China University of Geosciences Wuhan 430074 China Department of Earth Sciences Jilin University Changchun 130061 China

Based on field observations and rheology analysis, we perform one analogue experiment and remold the 3. structural frame of Tongling deposit concentrating area firstly. Then we disassemble and dialyze the 3. structures of the model using the methods of "slicing" and "stripping". A series of sliced planes vertical to the fold hinges show similar landscapes of that in the drill hole profiles. Meanwhile, layer stripping analysis indicates that the deformation features of each layer in the model are qualitatively analogical to those obtained from field observations. Through contrasting the 3. structure between the experimental model and the field phenomena, we verify the following 3. deformation features of the caprock in this area: (1) the Tongling area mainly consists of three series of NE S-typed fold groups; (2) in the uniform stress field, the incoherent folds universally develop in different positions, along different axes as well as in different strata; (3. the faults propagate upward which are mostly inter-bedded detachment faults, while the fold amplitudes decrease while going deeper; and (4) the folds and cleavages are highly developed in the Silurian System indicating that the deformation effect of the Indosin-ian-Yanshanian structural layer terminates at this layer, which suggests that the Silurian System is the crucial layer for the inversion between brittle and plastic deformation domains and the underlying strata are subject to the control of another deformation system with distinct properties.

关键词： Tongling deposit concentrating area Indosinian-Yanshanian epoch 3. structural frame of the caprock analogue experiment slicing and stripping analysis structural model.

3. visualization model and key techniques for digital mine

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中国有色金属学会会刊：英文版 2011年第S3期21卷 748-752页

作者： JIN Bao-xuan1,FANG Yuan-min2,SONG Wei-wei2 1. Yunnan Provincial Geomatics Centre, Kunming 65003., china 2. Faculty of land resource Engineering, Kunming University of Science and Technology, Kunming 650093. china Yunnan Provincial Geomatics Centre Kunming 650034 China Faculty of land resource Engineering Kunming University of Science and Technology Kunming 650093 China

Digital mine is the inevitable outcome of the information processing, and is also a complicated system engineering. Firstly, for the 3. visualization application of the digital mine, the ground and underground integrative visualization framework model was proposed based on the mine entity database. So, the visualization problem was availably resolved, as well as the professional analytical ability was improved. Secondly, aiming at the irregularities, non-uniformity, dynamics of mine entities, mix modeling method based on the entity character was put forward, in which 3. expression of mine entities was realized. Lastly, the 3. visualization project for a copper mine was experimentally studied. Satisfactory results were acquired, and the rationality of visualization model and feasibility of 3. modeling were validated.

关键词： digital mine three dimension visualization framework model spatial data modeling

SOIL CONSERVATION EFFICIENCY OF DIFFERENT MODELS CONVERTING FROM STEEP FARMING SLOPE PLOTS IN YA'AN, sichuan, china

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International Journal of Sediment Research 2003年第4期18卷 340-345页

作者： Yulin DENG, Yan PENG, Yukuan WANG and Zongting YANG institute of Mountain Hazards and Environment, Chinese Academy of sichuan 61004., P. R.{3. College of Forestry and Horticulture of sichuan Agricultural University, sichuan 625000, P. R.{3.. Water resources Administration in Ya'an, sichuan 625000, P. R.{3.. institute of Mountain Hazards and Environment Chinese Academy of Sichuan 610041 P. R. China College of Forestry and Horticulture of sichuan Agricultural University Sichuan 625000 P. R. China College of Forestry and Horticulture of sichuan Agricultural University Sichuan 625000 P. R. China institute of Mountain Hazards and Environment Chinese Academy of Sichuan 610041 P. R. China Water resources Administration in Ya'an Sichuan625000P.R.China

Converting farming slope land into artificial forestland or grassland is a major measure of soil/water conservation. Five conversion practices, namely, 1) a control plot still tilled with a crop (maize), 2) a folder grass-growing plot seeded with Lolium perenne , 3. a young alder tree-growing plot, 4) a pear orchard plot and 5)a bamboo plot intercropped with folder grass, were monitored to compare the soil conservation efficiency of those changes in Ya'an,{3.for 3.years between September 1998 and August 2001. Results showed that the 5 designed converting models functioned differently in erosion control. The most effective model was bamboo groves intercropped with folder grass (Lolium perenne). The folder grass (Lolium perenne) growing model was more effective than the pure pear orchard model. The least effective model was the young alder tree-growing slope, which was even less effective than the control (a slope without converted cultivation). Meanwhile, changes in the soil's physical properties r

关键词： Soil and water conservation effect. Watershed land use. sichuan Province

Analysis on Anthropogenic and Physical Influencing Factors of CO2 Concentration in Karst Cave Systems:A case study of Xingwen World Geopark

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Analysis on Anthropogenic and Physical Influencing Factors o...

Study on the Spreading of Environmental Impact of Human Being' s Activities and Its Crucial Factors in Upper Minjiang River

2011 International Symposium on Water resource and Environmental Protection(ISWREP 2011)

作者： Wei Shui Department of Eco-agriculture and Rural Development sichuan Agricultural University chengdu china Zheng-an Su {3. of Mountain Hazards and Environment Chinese Academy of Sciences chengdu china

The hand-held Carbon Dioxide Meter GM70 was used to measure CO 2 concentration in Tianquan cave of Xingwen World Geopark. The study was done in Tianquan cave in August, 2008. Data sources include the human and physical influence factors of distribution of CO 2 : tourists, wide of the cave and distance from main cave to lateral cave. Results indicated tourists have strong impacts on the CO 2 concentration in the lateral unventilated cave, while no significant differences could be found in the ventilated main cave. Furthermore, significant correlation could be found between the distance from main cave and the CO 2 concentration in the lateral unventilated cave. Results also indicate that the CO 2 concentration in the Tianquan cave has no threat to the health of tourists and deterioration of speleothems. However, more attention should also be paid to the change of CO 2 concentration in the narrow and unventilated cave when it opens to tourists to insure tourists’ health and speleothems development.

关键词： Xingwen WorldGeopark Tianquan cave CO 2 concentration influence factor

来源： cnki会议评论

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Wuhan University Journal of Natural Sciences 2003年第S2期 949-956页

作者： Fan Hong, Zhao Hong-da College of resources and Environment, Lanzhou University, Lanzhou 73.000, Gansu, china institute of Mountain Hazards and Environment, Chinese Academy of Sciences,{3., sichuan, china

This paper focuses on the historical transition of human being's activities and the eco-environment in the upper reaches of Minjiang River. The history is divided into 4 periods, each with its own feature. During the period of nomad immigration, the top-line of the subalpine forest was forced downward by the expanding subalpine meadow. During the period of farming nationality immigration, the bottom-line of middle mountain forest had moved upward forced by the needs for land or timber of the increasing population in the valley basia During the period of the early exploiting, the focus resource was the timber. The total output was limited, comparing with the later period, because of the bad accessibility. But it was large enough to impact the forest ecosystem of the deforesting area. The recent 50 years is the crucial period of economic development and eco-environment degradation. This paper points out that the impact of human being's activities for environment lies on 3.factors: 1) physical features con

关键词： historical period human being’s activities environmental impact crucial factors

Variation of δ^(13.C in karst soil in Yaji Karst Experiment Site, Guilin

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Chinese Science Bulletin 2002年第6期47卷 500-503页

作者： PAN Genxing, HE Shiyi, CAO Jianhua, TAO Yuxiang & SUN YuhuaCollege of resource and Environment Science, Nanjing Agricultural University, Nanjing 210095, china Karst Dyanmics Laboratory, Ministry of land and resources, Guilin 541004, china College of resource and Environment Science Nanjing Agricultural University Nanjing China Karst Dyanmics Laboratory Ministry of Land and Resources Guilin China

This study deals with δ13. variation in karst soil system of Yaji Karst Experiment Site, Guilin, a typical region of humid subtropical karst formations. Samples of near ground air, plant tissue, soil and water (soil solution and karst spring) were respectively collected on site in different seasons during 1996-1999. Considerable variation of δ13. values are not only found with different carbon pools of soil organic carbon, soil air CO2 and soil water HCO3., but also with the soil depths and with different seasons during a year. The δ13. values of CO2 both of near ground air and soil air are lower in July than those in April by 1‰-4‰ PDB. Our results indicate that the δ13. values of carbon in the water and air are essentially dependent on interface carbon interaction of air-plant-soil-rock-water governed by soilorganic carbon and soil CO2 in the system.

关键词： karst soil carbon δ13..

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赋权:组织内部知识共享的必要环节

图书情报工作 2004年第12期48卷 119-121页

作者：刘熙申传斌四川大学信息资源管理系成都610064 重庆渝西学院永川402168

通过分析传统组织向知识型组织过渡中管理方式发生的变化,指出赋权作为一种管理思想和方法,是组织内部实现知识共享的必要环节,赋权和知识共享存在相互依存的关系。在此基础上,从组织结构、文化和技术3.层面探讨如何在组织内部建立起... 详细信息

通过分析传统组织向知识型组织过渡中管理方式发生的变化,指出赋权作为一种管理思想和方法,是组织内部实现知识共享的必要环节,赋权和知识共享存在相互依存的关系。在此基础上,从组织结构、文化和技术3.层面探讨如何在组织内部建立起面向知识共享的赋权机制。

关键词：知识共享赋权知识管理

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长江上游退耕还林工程合理规模与模式

山地学报 2004年第6期22卷 675-678页

作者：朱波罗怀良杜海波木拥君中国科学院水利部成都山地灾害与环境研究所四川成都盐亭县林业局盐亭县林业局　61004. 61004.四川师范大学四川成都　610066 四川盐亭　621600

陡坡耕地的水土流失对生态环境和农业可持续发展构成双重压力。退耕还林是促进人与自然协调,推动农业可持续发展的有效途径,但应避免退耕还林工程规模的盲目扩大。退耕还林的规模应根据自然条件、生态功能定位并考虑粮食安全保障以确定... 详细信息

陡坡耕地的水土流失对生态环境和农业可持续发展构成双重压力。退耕还林是促进人与自然协调,推动农业可持续发展的有效途径,但应避免退耕还林工程规模的盲目扩大。退耕还林的规模应根据自然条件、生态功能定位并考虑粮食安全保障以确定。地广人稀的金沙江中上游、盆周山地是长江上游最重要的水源涵养、水土保持功能区,其退耕还林规模可适度扩大,但川中丘陵区、三峡库区人口稠密,退耕还林不应过分追求规模,退耕后的林草地不应突破土地面积的40%。而退耕还林工程的实施更应注重模式的选择,防止一刀切,川中丘陵区、三峡库区退耕还林宜采用'旱坡地粮经弹性结构种植'技术,建立坡地农林复合系统,逐步实施退耕还林。

关键词：陡坡耕地复合农林业生态功能粮食安全退耕还林

Ecological planning for land use and ruraldevelopment of Taojiang County

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Journal of Environmental Sciences 1995年第3期7卷 304-316页

作者： Ouyang Zhiyun Wang Rusong Jason Weisman(Research Center for Eco-Environmental Sceiences ,Chinese Acadetny of Sceiences, Beijing 100085, china)Fu Guinan(Taojiang County land management Bureau, Hunan Province. china)

ＥｃｏｌｏｇｉｃａｌｐｌａｎｎｉｎｇｆｏｒｌａｎｄｕｓｅａｎｄｒｕｒａｌｄｅｖｅｌｏｐｍｅｎｔｏｆＴａｏｊｉａｎｇＣｏｕｎｔｙＯｕｙａｎｇＺｈｉｙｕｎ；ＷａｎｇＲｕｓｏｎｇ；ＪａｓｏｎＷｅｉｓｍａｎ（Ｒｅｓｅａｒｃｈ... 详细信息

ＥｃｏｌｏｇｉｃａｌｐｌａｎｎｉｎｇｆｏｒｌａｎｄｕｓｅａｎｄｒｕｒａｌｄｅｖｅｌｏｐｍｅｎｔｏｆＴａｏｊｉａｎｇＣｏｕｎｔｙＯｕｙａｎｇＺｈｉｙｕｎ；ＷａｎｇＲｕｓｏｎｇ；ＪａｓｏｎＷｅｉｓｍａｎ（ＲｅｓｅａｒｃｈＣｅｎｔｅｒｆｏｒＥｃｏ－Ｅｎｖｉ...

关键词： ecological planning land use land quality land suitability.