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Geological features and genesis of Gaotaigou borate deposit, jilin, china

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Global Geology 2005年第Z1期 65-71页

作者： XIAO Li-mei, SUN Feng-yue College of Earth Sciences, jilin University, Changchun 130061, jilin, china

Gaotaigou borate deposit in Ji’an area, southeastern jilin, is located in the easten end of Liaoning-jilin (Liaoji) Proterozoic paleo-rift, which is a medium-sized deposit and makes up 67% of the total borate reserves in jilin Province. The original borate ore bodies were formed by sedimentary exhalative process in Paleoproterozoic, but were activated and enriched by later metamorphism. In late stage of metamorphistn, hydrothermal fluid of metamorphic origin made wallrocks be altered and the borate ore bodies be reformed. Ore bodies are strictly controlled by strata and their lithologies. In addition, the shape and spatial distribution of ore bodies are also defined by the Gaotaigou syncline. Combined with the ore-controlling factors and mineralizing features, it has been proposed that Gaotaigou borate deposit is a metamorphosed and hydrothermally altered sedimentary exhalative deposit.

关键词： Gaotaigou borate deposit ascharite metamorphism Liaoji Paleo-rift genesis of deposit

IDENTIFICATION OF PHYSIOLOGICAL RACES OF MAGNAPORTHE GRISEA AND RESISTANCE MONITORING OF RICE TO RICE BLAST IN jilin PROVINCE, china

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IDENTIFICATION OF PHYSIOLOGICAL RACES OF MAGNAPORTHE GRISEA ...

A STUDY ON THE FERRIFAYALITE (LAIHUNITE) DISCOVERED IN jilin PROVINCE, china

The ⅩⅤth International Plant Protection Congress

作者： WANG Ji-chun1 2 REN Jin-ping1 YANG Xin-dong2 GUO Xiao-li1 HAN Run-ting1 and LIU Xiao-mei1 1Institute of Plant Protection jilin Academy of Agricultural Sciences Gongzhuling jilin 136100 china 2Department of Plant Protection jilin Agricultural University Changchun 130118 china

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Chinese Science Bulletin 1983年第5期28卷 661-665页

作者：赵良超于学信胡雅安 jilin Institute of Geological Sciences Changchun The Sixth Geological Survey of jilin Geological Bureau Jilin Province jilin Institute of Geological Sciences Changchun? INTRODUCTION In 1978 a mineral similar to fayalite with brilliant black color and perfect crystal form was found at the Changbaishan paleo-crater in Jilin Province China. The mineral occurred in pumiee and aegyriteaugite trachyte in the Middle Pleistocene

Ⅰ. INTRODUCTION In 1978, a mineral similar to fayalite with brilliant black color and perfect crystal form was found at the Changbaishan paleo-crater in jilin Province, china. The mineral occurred in pumiee, and aegy... 详细信息

关键词： brilliant Pleistocene jilin perfect Middle analogous belongs oxidized Liaoning Hebei

CHARACTERISTICS OF CHANGE IN TEMPERATURE DURING THE PAST 50 YEARS IN jilin PROVINCE OF china

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Chinese Geographical Science 2002年第4期12卷 329-332页

作者： ZHAO Xin -yi,WAN Jun,WU Xiu -qin(Department of Urban and Environment al Sciences,Peking University,Beijing 100871,P.R.china) Department of Urban and Environmental Sciences Peking University Beijing P. R. China

Based on the monthly mean temperatu re,the changing processes and tendencies of temperature during1951-2000in jilin Province,which i s in Northeast china,are analyzed.A nd the spatial characteristics of th e change are *** the past 50years the te mperature of jilin Province was increasing just like the other areas in th e *** 1990,the increasing of temperature has been more obvious th an that in the previous *** the west to the east,the province has larger tem perature *** to Principal Component Analysis(PCA)of temperature field,jilin Province is divided int o 3regions and the degree of becoming warmer is different from region to re *** the period of 1951to 2000,the annual temperature in jilin Province has been rising,so has the temperature in winter and *** average temperature in t he 1990s was 0.5-2.0℃higher than that in the *** the west to the east,the increasing of temperature becam e smaller.

关键词： temperature change spatial characteristics jilin province

Impact of Long-Term Atrazine Use on Groundwater Safety in jilin Province, china

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Journal of Integrative Agriculture 2013年第2期12卷 305-313页

作者： GENG Yue MA Jing JIA Ran XUE Li-qin TAO Chuan-jiang LI Chong-jiu MA Xiao-dong LIN Yan College of Science China Agricultural University Institute for the Control of Agrochemicals Ministry of Agriculture

The long-lasting application of representative herbicide atrazine （ATR） has given rise to the accumulation of its residues in the groundwater. To investigate the impact of long-term ATR use on groundwater safety, the residues of ATR and its metabolites, desethylatrazine （DEA）, deisopropylatrazine （DIA） and hydroxyatrazine （HA） were monitored in groundwater and top soil at the major corn growing region of Qian＇an and Gongzhuling in jilin Province, china. The residues of the target compounds were analyzed by UPLC-MS/MS. The limits of detection （LODs） ofATR, DEA, DIA, and HA were 0.5, 0.5, 5, and 0.5 ng L-1 in groundwater and 0.33, 0.33, 3.3, and 0.33 μg kg-1 in soil. The target compounds were found in 94% of groundwater samples and 100% of soil samples. The compounds detected most frequently in groundwater were ATR （89%）, DEA （64%） and HA （17%）, whereas in soil were ATR （97%）, DEA （36%） and HA （97%）. DIA was not detected in any determined groundwater and soil sample. Average residues were 106.8 ng L-1 for ATR, 0.9 ng L-1 for DEA and 0.3 ng L-1 for HA in groundwater, whereas 11.1 μg kg-1 for ATR, 0.4 μg kg-1 for DEA and 7.8 μg kg-1 for HA in soil. ATR residues detected in groundwater samples were below standards for drinking water quality （GB5749-2006, 2 μg L-1）, while the total residues of ATR and its chloro-s-triazine metabolites （DEA and DIA） were below current WHO （World Health Organization） guideline value （GV, 0.1 mg L-1）. In addition, concentrations of HA in groundwater were determined below current WHO GV （0.2 mg L-1）. The results indicated that ATR is safe to be used in jilin Province under the current application scheme. However, total residues of ATR and DEA were detected in nearly all wells, thus, it is necessary to pay attention on groundwater monitoring for ATR and its metabolites.

关键词： atrazine desethylatrazine deisopropylatrazine hydroxyatrazine groundwater soil UPLC-MS/MS

COMPARISON OF THE ALKALI MARSH SOIL ANDAGRICULTURE SOIL ON NUTRIENT RETENTIONIN WESTERN jilin, china

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湿地科学 2003年第2期1卷 147-152页

作者： XU Xiao-feng, SONG Chang-chun, SONG Xia, YAN Bai-xing, WANG Yi-yong.WANG Guo-ping,ZHANG Yu-xiaNortheast Institute of Geography and Agricultural Ecology, CAS, Changchun, 130012, china The Institute of Geography Science and the Natural Resource Research, CAS, Beijing 100101, china Northeast Institute of Geography and Agricultural Ecology CAS Changchun 130012 China The Institute of Geography Science and the Natural Resource Research CAS Beijing100101China

An intact alkali marsh soil (MS) core and an agriculture soil (AS) core were studied by the simulated test in order to get the comparison of the nutrients retention in alkali MS and AS. The soil cores extracted from the Xiang hai Wetland, western jilin Province, china, were leached with solution contained carbon, nitrogen and *** the effluent water from the outlets of soil core with different depths was measured, including chemical oxygen demand (COD), total phosphorus (TP), phosphate (PO3-4 - P) and nitrogen existed as nitrate (NO-3 - N), nitrite (NO-2 - N) and ammonia nitrogen (NH+4 - N) and the total nitrogen (TN) in the effluent water. COD and TP are decreased with the depth, the changing trends of TN, NO-3 - N and NH+4 - N contents are similar to COD and TP,whereas NO-2 - N in both MS and AS effluent have a little transition at 40cm depth. It is similar efficiency of MS to AS in significantly cutting down COD, TP, PO3-4 - P, TN, NO-3 - N, NH+4 - N and NO-2 - N in nutrient *** function of MS would be same efficiency of the nutrients retention as the AS. Although the SOM and pH have some impacts on nutrients retention in the soil, the MS with higher soil organic matter (SOM) and pH have the same effluent water as the AS with the lower SOM and pH at the depth of 60 cm, the bottom of the soil cores.

关键词： marsh soil agriculture soil COD nitrogen phosphorus

Nesting biology and population dynamics of Jankowski's Bunting Emberiza jankowskii in Western jilin,china

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Nesting biology and population dynamics of Jankowski's Bunti...

COMPARISON　THEOREMS　TO　BOUNDARY　VALUE　PROBLEMS　FOR　ORDINARY　DIFFERENTIAL　EQUATIONS

吉林省第六届生命科学大型学术报告会

作者： YUN-LEI JIANG WEI GAO FU-MIN LEI DONG-MEI WAN JIANG ZHAO HAI-TAO WANG (School of Life Sciences,Northeast Normal University Key Laboratory of Vegetation Ecology,Ministry of Education,Changchun 130024,china)

Jankowski’s Bunting (Emberizajankowskii) was first recorded by Taczanowski (1888). It is a small-sized (c. 20 cm, bill-tail) grassland passerine, and is endemic to china, Russia and North Korea. Its breeding sites are restricted to Inner Mongolia, Heilongjiang, western and eastern jilin provinces in china, extreme south-east Russia and the boundary region between Russia, china and

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Chinese Annals of Mathematics,Series B 1994年第2期15卷 165-172页

作者： LI YONG WANG HUAIZHONG(Department of Matehematics,jilin University, Changchun 130023, jilin, china) jilin UNIV DEPT MATHCHANGCHUN 130023PEOPLES R CHINA

A unified approach is given to several classes of nonlinear boundary value problems, and some previous existence theorems are extended.

关键词： Boundary value problem Existence theorem Brouwer degree,Schauder's fixed point theorem.

SUPERPLASTICITY OF Al-Zn-Mg-Zr-RE AND Al-Zn-Mg-Ti ALLOYS AND THEIR CAVITATION BEHAVIOUR DURING DEFORMATION

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Acta Metallurgica Sinica(English Letters) 1991年第8期4卷 134-138页

作者： ZHAO Youchang LIU Aihong jilin University,Changchun,china jilin Univ Changchun China

The superplasticity of the Al-Zn-Mg-Zr-RE(alloy A)and Al-Zn-Mg-Ti(alloy B),their change of volume fraction of metastable micro-cavities under various reduction of area and strain rates,as well as the growth of stable cavities in them have been studied by means of small angle X-ray scattering analyses and quantitative metalloraphy ***- tal results show that the volume fraction of metastable micro-cavities of the alloy A is more than that of the alloy B,but the growth rate of stable cavities in alloy A is less than that in al- loy ***,it is believed that the superplasticity of alloy A is superior to that of alloy B.

关键词： Al-Zn-Mg alloy superplasticity cavity strain rate