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Research in Cold and Arid Regions 2009年第5期1卷 443-447页

作者： ShuHuan Du 1,BaoSheng Li 1,2,DongFeng Niu 1,XiaoHao Wen 1,FengNian Wang 1,XianJiao Ou 1,Yi Yang 1,YueJun Si 1,XinNan Zhao 1 1.Department of geography,South China normal university,Guangzhou,Guangdong 51063.,China 2.State {3. laboratory of Loess and Quaternary Geology,Institute of Earth Environment,Chinese Academy of Sciences,Xi’an,Shaanxi 710061,China South China normal Univ Dept Geog Guangzhou 510631 Guangdong Peoples R China Chinese Acad Sci Inst Earth Environm State Key Lab Loess & Quaternary Geol Xian 710061 Shaanxi Peoples R China

Layer LJ3.of Linjiang stratigraphic section in Dongjiang River valley in the south of the Nanling Mountains is a set of red sandy *** by thermoluminescence(TL) dating,it was found to be formed in MIS2-9,500 ± 800 yr to 19,600 ± 1,800 yr *** analy-sis of the grain sizes of the 16 samples(LJ3.100 to LJ3.85) in this layer,it was discovered that(1) The contents of each grain group in dif-ferent samples are similar.(2) The values of Md,Mz,,Sk,and Kg vary from LJ3.100 to LJ3.85 in a narrow range.(3. The segments of each sample in the accumulative curves extend parallel with similar *** the three aspects reveal the Aeolian characteristics of Layer ***,it is thought that Layer LJ3.consists of red sandy sediments formed in MIS2 in the south of Nanling Mountain,which reflects the arid climate at that time.

关键词： Nanling Mountain Range Dongjiang River valley red sandy sediment grain-size analysis arid environment

Polysaccharide release by Aphanothece halophytica inhibits cyanobacteria/clay flocculation

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Polysaccharide release by Aphanothece halophytica inhibits c...

博斯腾湖流域山区地表径流对近期气候变化的响应

庆祝中国藻类学会成立3.周年暨第十五次学术讨论会

作者： CHEN Li~1,MEN Xiao~1,MA Meirong~1,LI Pengfu~(1,*),JIAO Qingcai~1,LU Shan~1, KONG Fanxiang~2 and WU Shengcai~3.1 School of Life Sciences,Nanjing university,Nanjing 210093.P.R.China 2 State key laboratory of Lake Science and Environment,Nanjing Institute of {3. and Limnology,Chinese Academy of Sciences,73.East Beijing Road, Nanjing 210008,P.R.China 3.Department of Biology,Yancheng normal university,Yancheng 224002,Jiangsu,P. R.China

＜正＞Many microalgae release polysaccharides,but the effects of the polysaccharides on mutual flocculation of microalgae and clay in aquatic environments have not been well *** halophytica is a bloom-forming cyanobac...

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山地学报 2010年第2期28卷 206-211页

作者：孙占东 Christian Opp 王润高前兆中国科学院南京地理与湖泊研究所湖泊与环境国家重点实验室马尔堡大学地理系中国科学院城市环境研究所中国科学院寒区与旱区环境与工程研究所

近年来,在全球和区域气候变化影响下,新疆博斯腾湖主要产流区开都河出山径流呈现异常波动,引起气候变化研究的关注。鉴于产流区复杂地形和径流补给特征以及传统观测资料的不足,借助雷达、微波及可见光等多源遥感数据从山区降水、积雪和... 详细信息

近年来,在全球和区域气候变化影响下,新疆博斯腾湖主要产流区开都河出山径流呈现异常波动,引起气候变化研究的关注。鉴于产流区复杂地形和径流补给特征以及传统观测资料的不足,借助雷达、微波及可见光等多源遥感数据从山区降水、积雪和冰川等方面与出山径流变化关系进行比较来揭示径流突变原因。结果表明,产流区平均径流深与降水量关系的转变是引起出山径流异常波动直接原因;进一步的冰川变化分析显示,径流深的波动主要由冰川融水径流变化引起:20世纪80年代中期后的温度上升加速了山顶冰川消融,导致1987～2002年的径流增加和湖泊水位升高;1984～2000年间,流域山顶冰川面积消退近40%,随着分布在较低海拔,对温度升高最敏感的中小冰川的消失,冰雪消融带来的径流增加效应开始减弱;2002年后,在流域气温、降水等变化并不显著的情况下,出山径流量却急剧降低,反映了特定冰川分布条件地区在气候变暖中融水径流先升后降的现象。

关键词：天山博斯腾湖气候变化地表径流水文响应

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论环境古地理学

干旱区资源与环境 1989年第2期3卷 90-97页

作者：史培军北京师范大学地理系

本文根据现代地球科学的发展,基于地理系统学说的思想,为系统地评价区域环境质量、制定长远国土开发策略,提出一门新的地理学边缘学科—“环境古地理学(Environ—Paleogeography)”。文中讨论了它的研究对象、研究目的、研究方法等有关... 详细信息

本文根据现代地球科学的发展,基于地理系统学说的思想,为系统地评价区域环境质量、制定长远国土开发策略,提出一门新的地理学边缘学科—“环境古地理学(Environ—Paleogeography)”。文中讨论了它的研究对象、研究目的、研究方法等有关问题。

关键词：古地理学地球科学区域环境质量国土开发地理系统地理学研究大气科学综合研究地质科学第四纪古地理

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秦巴山区自然条件与农业立体布局设计

山地研究 1991年第1期9卷 53-58页

作者：李锦秀华中师范大学地理系

本文从分析鄂境秦巴山区农业自然条件着手,着重论述光、热、水、土等农业自然条件对发展立体农业的有利因素和限制因素。在揭示自然结构分异特征的基础上,探讨划分山区农业自然资源地带,从而进行山区农业布局的宏观立体设计。

关键词：秦巴山区农业自然条件农业自然资源地带立体布局设计

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点源入渗理论及其模型研究进展

水土保持研究 2005年第6期12卷 159-162页

作者：张振华蔡焕杰杨润亚烟台师范学院地理与资源管理学院山东烟台264025 西北农林科技大学教育部旱区农业水土工程重点实验室陕西杨陵712100

就与滴灌水分动态密切相关的点源入渗过程的数学模拟方法进行了综述,对解析解、数值解和经验解的结构、特点及主要存在的问题进行了论述,并介绍了考虑作物根系吸水的滴灌入渗水分运动模型。在分析国内外研究历史和现状后,指出在点源入... 详细信息

就与滴灌水分动态密切相关的点源入渗过程的数学模拟方法进行了综述,对解析解、数值解和经验解的结构、特点及主要存在的问题进行了论述,并介绍了考虑作物根系吸水的滴灌入渗水分运动模型。在分析国内外研究历史和现状后,指出在点源入渗数值模型中对多维作物根系吸水问题的精确处理是需要进一步研究的关键问题。

关键词：点源入渗解析解数值解经验解

Designing regional pattern for ecosystem restoration:A case study

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Science China(Technological Sciences) 2006年第z1期49卷 86-97页

作者： LI Guoqiang , MA Keming, FU Bojie & LIU Shiling State key Lab of Systems Ecology, Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China Department of Water Environment, China Institute of Water Resources and Hydropower Research, Beijing 10003., China School of Environmental Sciences, Beijing normal university, Beijing 100875, China 1. State key Lab of Systems Ecology Research Center for Eco-environmental Sciences Chinese Academy of Sciences Beijing 100085 China 2. Department of Water Environment China Institute of Water Resources and Hydropower Research Beijing 100038 China 3. School of Environmental Sciences Beijing Normal University Beijing 100875 China

Designing regional pattern is challenging for ecosystem restoration both in theory and in practice. The present study proposed a new approach to design regional pattern for ecosystem restoration with a case in the arid valley of Upper Minjiang River, SW China. The procedures are: (1) Determine the regional pattern of main environmental factors based on the relationships between the important environmental factors and the main geographical factors generated from DEM data. (2) Overlay the maps of the main environmental factors. (3. Generate a lookup table according to the species selection rule we proposed to link the candidate restoration species to the main environmental factors.(4) Determine the regional pattern of ecosystem restoration by positioning the restoration species in the map of environmental factors according to the lookup table. The regional restoration pattern designed in this way would be applicable not only to restoring a region, but also to predicting the future landscape change.

关键词： environmental factors, GIS, restoration species, Upper Minjiang River Valley.

“Co-culture Engineering”for Enhanced Phytoremediation of Metal Contaminated Soils

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Pedosphere 2004年第4期14卷 475-482页

作者： NICai-Ying SHIJi-Yan LUOYong-Ming CHENYing-Xu DepartmentofEnvironmentalEngineering SchoolofEnvironmentandResourceSciencesZhejiangUniversityHangzhou310029（China）. SoilandEnvironmentBioremediationResearchCentre InstituteofSoilScienceChineseAcademyofSciencesNanjing210008（China）

A co-culture of two plant materials, Astragalus sinicus L., a leguminous plant with concomitant nodules, and Elsholtzia splendens Naki-a Cu accumulator, along with treatments of a chelating agent (EDTA), root excretions (citric acid), and a control with E. splendens only were used to compare the mobility of heavy metals in chelating agents with a co-culture and to determine the potential for co-culture phytoremediation in heavy metal contaminated soils. The root uptake for Cu, Zn, and Pb in all treatments was significantly greater (P ＜ 0.05) than that of the control treatment. However with translocation in the shoots, only Cu, Zn, and Pb in plants grown with the EDTA treatment and Zn in plants cocropped with the A. sinicus treatment increased significantly (P ＜ 0.05). In addition, when a co-culture in soils with heavy and moderate contamination was compared, for roots in moderately contaminated soils only Zn concentration was significantly less (P ＜ 0.05) than that of heavily contaminated soils, however, Cu, Zn, and Pb concentrations of shoots were all significantly lower (P ＜ 0.05). Overall, this 'co-culture engineering' could be as effective as or even more effective than chelating agents, thereby preventing plant metal toxicity and metal leaching in soils as was usually observed in chelate-enhanced phytoremediation.

关键词： Astragalus sinicus chelating agents co-culture Elsholtzia splendens phytoremediation

Impacts of landscape fragmentation on breeding habitats of Oriental White Stork in the Sangjiang Plain,China

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Impacts of landscape fragmentation on breeding habitats of O...

Sediment records of persistent organic pollutants (POPs) in relation to regional economic development: A comparison study in both Pearl River Delta and Yangtze River Delta, China

第三世界生态高峰会

作者： Liu HongYu~1 Li Zhaofu~2 1.College of geography,Nanjing normal university.122,Ninghai Road.Nanjing,China,210097 2.College of Resources and Environmental Sciences,Nanjing Agricuitural university.l,Weigang Road,Nanjing 210095,China

Since the fragmentation of natural habitat is one of the most serious problems for many species,it is highly interesting to study the impacts of landscape fragmentation on habitats of endangered *** Oriental White Stork,as a representative wetland waterfowls in the Sanjiang Plain,China,has sharply declined in population during the last decades apparently due to forest harvesting and fragmentation of natural wetland *** measures have led to the establishment of a wetland reserve to assure the persistence of Oriental White Stork at a regional ***,little is known about the effects of landscape structure on the distribution of Oriental White *** identified six key breeding habitat variables and tested them by field censuses during 2004 ***,establishing a HSI model and integrated it into GIS to evaluate the breeding habitats of Oriental White Stork and their dynamic changes over the past *** show that the positive role of particular landscape features on stork distribution indicates that both the wetland landscape complex and the surrounding matrix of breeding habitats has an important role in determining the distribution of *** the habitats of Oriental White Storks was composed of complex landscape of wetland types,in which island-like forest swamps were as nesting area and marshes, lakes and ponds as food area for Oriental White Storks in the study area, so Breeding habitats located in complex wetland landscapes showed a higher quality habitat of storks than in a fragmented *** disturbance and reclamation of wetlands that resulted wetland fragmentation is the most important factors to impact quality of breeding habitat of storks in the Sanjiang Plain,Patch area of wetlands had more effects on habitats when landscape matrix was in lower fragmented state when wetland area accounted of more than 50% of the total study area and landscape connectivity was larger than 50;and isolation in la

关键词： wetland landscape fragmentation habitat Oriental White Storks

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Acta Geochimica 2006年第S1期 188-189页

作者： Gan ZHANG1, Lingli GUO1, Guoqing LIU1, Jun LI1, Zhangdong JIN2, Shihua QI3. Xiangdong LI4 1 State key laboratory of Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China 2 Nanjing Institute of Limnology and geography, Chinese Academy of Sciences, Nanjing 210008, China 3.School of Environmental Sciences, China {3. of Geosciences, Wuhan 43.074, China 4 Department of Civil and Structural Engineering, Hong Kong Polytechnic {3., Hong Kong, China