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2013 Vol. 32, No. 4

Display Method:
Spatial differentiation of soil carbonic anhydrase under different types of land use
HE Yuanyuan, LI Qiang, CAO Jianhua, LIANG Jianhong, ZHU Minjie
2013, 32(4): 365-370.
Abstract:
Carbonic anhydrase (CA) plays an important role in catalyzing the reversible hydration of CO2, which connects with chemical weathering (including the carbonate rock dissolution and silicate weathering) in atmospheric CO2 sink and the mysterious missing sink in carbon cycling. In order to explore the...
The effect of rocky desertification on the soil’s organic carbon storage in karst peak cluster: A case study in Yanbei town, Yingde City, Guangdong Province
WEI Xinghu, XU Xizhen, LEI Li, ZHOU Hongyan, LI Zhongyun
2013, 32(4): 371-376.
Abstract:
In order to analyze the effect of rocky desertification on the storage of soil organic carbon, sample plots with different degrees of rock desertification in a typical karst peakcluster in the Tangbian village, Yanbei town, Yingde City, the north of Guangdong Province are selected in this paper, an...
Transport process of arsenic in karst subterranean stream and analysis on the influence factors: A case in Lihu subterranean stream of Nandan county, Guangxi
ZHANG Liankai, , YANG Hui
2013, 32(4): 377-383.
Abstract:
The arsenic pollutants generated by the arsenic industries and mining enterprises in karst area flow into subterranean streams and contaminate groundwater easily because of the unique hydrogeological characteristics of karst area, which is a serious threat to the water ecologic security and local re...
Application of fuzzy mathematics in risk evaluation in geothermal resources exploration in karst reservoir: A case in mountain type karst thermal storage in Chongqing
YANG Hualin, LI Minglun, LIU Bangxian
2013, 32(4): 384-390.
Abstract:
Geothermal resources of karst reservoir are rich in Chongqing, belonging to the mountain type. The karst thermal reservoir, stripped in shape and distributing independently in the thermal field, is located in both wings beside 23 high uplift anticlines and 1-2 km from the axis of the anticlines in t...
Artificial neural network simulation to zero flow of the Heilongtan spring groups in Lijiang
ZENG Cheng, YANG Rui, YANG Mingming, HU Junchun, WU Guihua, FAN Yuhong
2013, 32(4): 391-397.
Abstract:
Zero flow of the Heilongtan spring group that is famous scenery in Lijiang, Yunnan Province frequently occurs recently, which severely threatening the sustainable development of Lijiang tourism. In order to know the real reason for zero flow of the Heilongtan spring group and its occurrence regulari...
Hydrogeologic features and influence factors of zero flow of the Heilongtan spring group in Lijiang
KANG Xiaobo, WANG Yu, ZHANG Hua, CAO Jin
2013, 32(4): 398-403.
Abstract:
Water from the Heilongtan spring group is one of the main sources for living, landscape and the service in the old town of Lijiang. In recent years, the amplitude of the spring group flows between wet and dry period is increasing. Seasonal or annual drought event is occurred when in drought or extre...
Analysis on stability of ecologically restored slope in Qianlingshan, Beijing
ZHANG Huixu, WANG Xiaolie, WANG Hongcai, GUO Binbin, ZHU Linxin, ZHAO Weihua, LI Awei, SUN Dongsheng, MA Yue
2013, 32(4): 404-410.
Abstract:
The analysis on high-steep rocky slope stability is a research focus for a long time, because it is considered as the reason why geological disasters occurres, such as slope instability and landslide. Ecological restoration of slope is an urgent issue that can improve environment but may reduce the ...
On the stability of slide type crag in Wu gorge bank slope,Yangtze River: A case study in Wangxia
HE Xiao, CHEN Hongkai, ZHAO Peng, LIU Li
2013, 32(4): 411-418.
Abstract:
Crag is one of the major geologic disaster in the Three Gorges Reservoir Region, forming serious threaten to human life and property and to the navigation safety of the river way of the Three Gorges Reservoir Region. As the slide type crag, accounting for 60 %-70 % of the total crags, it is of signi...
Features of the shallow karst development and control of karst collapse in Wuhan
LUO Xiaojie
2013, 32(4): 419-432.
Abstract:
In order to reveal the shallow karst development laws and provide the basis for prevention and control measures of karst collapse disaster, the development characteristics of covered karst in Wuhan are studied by the means of comprehensive analysis and mathematical statistics method. There are 6 ind...
Formation conditions of the karst collapse and treatment technology at raker’s substrate in a karst mine
WANG Jun, ZHAO Qia
2013, 32(4): 433-436.
Abstract:
The raker’s substrate, situated in a karst mine in southern China, is composed of silty clay, pebbles and limestone. In June 2009 a 3m long and 2m wide collapse took place, causing the raker being buried in a cave. The collapse seriously threatens the safety of the surrounding tailing depot and ceme...
Preliminary thinking of quantitative research on the mechanism of karst collapse
JIN Xiaowen, CHEN Zhihua, ZENG Bin, ZHANG Wenhui, SHI Tingting
2013, 32(4): 437-446.
Abstract:
The karst collapse, as most widespread geological disasters and environmental geological problems in karst areas in the world, has had a serious hazard for the development of human society and the construction of engineering projects as well as other aspects. Since the 1970s, both domestic and forei...
Diagnosis of eco-environment quality in Wujiang River watershed based on RS and GIS
YI Wuying, SU Weici
2013, 32(4): 447-452.
Abstract:
The Wujiang river watershed lies on the Yunnan-Guizhou plateau slope, is the largest branch of the south bank of the upper Yangtze River, has unique geology and geomorphology and widely developed karst landform. Owing to long-term irrational exploitation and utilization on a large scale, the river w...
Ecologic land protection and development of new urban district in karst mountain:A case study in the Jinyang new district
FENG Yuansong, YANG Qingyuan
2013, 32(4): 453-461.
Abstract:
It is of great significance to study the protection and planning of ecologic land in the process of town construction in karst mountain. The Jinyang new district is located to the northwest of the old city of Guiyang City. It has irreplaceable advantage in promoting regional economic development in ...
Distribution of land use pattern at different terrain gradients in karst area based on GIS: A case in Benxi village,Youyang county
LIU Ling, WANG Yong, XIE Shiyou, LONG Mi, PENG Anqi, HAN Yaowei
2013, 32(4): 462-471.
Abstract:
Studying land use change and its spatial expansion along the terrain gradient is of great significance for identifying the direction of land use change and its sustainable use. In this paper, a case study is conducted in Banxi village, Youyang county, Chongqing City. The regional differentiation in ...
Variation characteristics of the radon’s concentration and protection to the harm in the Xueyu cave, Chongqing
YANG Xiaoxia, ZI Tao, CHEN Bingqing, XIANG Xu, WANG Xiaoxiao
2013, 32(4): 472-479.
Abstract:
PRM-2100 (Radon RAE Progeny) is used to measure the equivalently effective concentration (EECRn) of radon’s daughter in the Xueyu cave for 12 months. The average EECRn is 2 135.7 Bq/m3. Take the balance factor as 0.5, the average concentration of radon in the Xueyu cave is 4 271.4 Bq/m3. The EECRn i...
The self-potential method and its application in karst collapses
CHEN Yixiang, GAN Fuping, LU Chengjie, WEI Jiyi
2013, 32(4): 480-486.
Abstract:
The groundwater that flowing through soil cave or karst collapse pit destroys the balance of positive and negative charges in the ion double electrode layer between the solid - liquid interface in soil, which induces spontaneous polarization of underground medium (soil layer) and forms downward natu...