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山地学报 2005年第3期23卷 280-287页

作者：隋欣杨志峰北京师范大学环境学院水环境模拟国家重点实验室北京师范大学环境学院水环境模拟国家重点实验室北京100875北京师范大学环境学院水沙科学教育部重点实验室北京100875

以青海省境内黄河干流龙羊峡水库为例,应用基于气象要素分析水库气候效应的数学模型,计算了水库蓄水后对局地气候的净影响,深入探讨了气候效应随时间的变化趋势。结果表明,龙羊峡水库蓄水以来,对局地气候有明显影响,环境风险度有较大提... 详细信息

以青海省境内黄河干流龙羊峡水库为例,应用基于气象要素分析水库气候效应的数学模型,计算了水库蓄水后对局地气候的净影响,深入探讨了气候效应随时间的变化趋势。结果表明,龙羊峡水库蓄水以来,对局地气候有明显影响,环境风险度有较大提高,且水库对不同的气象要素的影响随蓄水时间的增加呈现不同趋势。

关键词：气候效应趋势龙羊峡水库黄河流域

Regional Summer Temperature Decrease against Global Warming in china, Landform Effect?

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Journal of Mountain Science 2007年第1期4卷 86-90页

作者： LU Aigang PANG Deqian HE Yuanqing PANG Hongxi WANG Tianming GE Jianping ministry of education {2. laboratory for Biodiversity Science and Engineering College of Life SciencesBeijing Normal University Beijing 100875 China Institute of C-eography Research Weinan Teachers College Weinan 714000 Shaanxi China Cold and Arid Regions environmental and Engineering Institute Chinese Academy of SciencesLanzhou 730000 Gansu China

The data of 16o national meteorological observatory （NMO） stations with long-term monthly temperature data for china were analyzed in this study to show the basin-centered summer temperature decrease against global warming in the past half century. The summer and winter isotherm structures of 1950s and 1990s worked out by interpolation show the isotherm structure variations： the isotherm structure generally moves northward in winter, but in summer it is characterized with separate high-temperature and low-temperature centers and the isotherm structure moves inward the centers with global warming, indicating that the temperature in the highland areas increases but that in the lowland areas decreases in the summer of the duration. The possible mechanism of the basin-centered temperature decrease in summer is discussed in this paper.

关键词： Isotherm structure seasonal variation summer temperature decrease plateau-basin effect china

Pollen assemblages from different agricultural units and their spatial distribution in Anyang area

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Chinese Science Bulletin 2010年第6期55卷 544-554页

作者： WANG XueLi1,2.LI YueCong1,2.XU QingHai1,2.CAO XianYong1,2.ZHANG LiYan1,2.& TIAN Fang1,2.1 College of Resource and environmental Sciences,Hebei normal {2.,Shijiazhuang 050016,china 2.Hebei key laboratory of environmental change and Ecological Construction,Shijiazhuang 050016,china College of Resource and environmental Sciences Hebei Normal University Shijiazhuang China Hebei key laboratory of {2. change and Ecological Construction Shijiazhuang China

Pollen analysis is one of the best and possible approaches for the quantitative reconstruction of paleobotany and paleoclimate,and discrimination of human *** this paper,we reveal the characteristics of pollen assemblages in different agricultural units and their spatial distribution of major pollen taxa in the Anyang area where the human influences are serious,so as to get more information about climate change and human activities from pollen *** pollen assemblages of total 12. surface soil samples from different agricultural units (farm lands,vegetable plots,wastelands,cape-lands,woodlands,etc.) indicate that herbaceous pollen dominates the pollen assemblages with an average of 73%,mainly from Poaceae,Artemisia,Chenopodiaceae and Cruciferae;arboreal pollen percentages reach 18%,mainly from Pinus and Ulmus;shrub pollen and fern spores have very low *** general,pollen assemblages are consistent with vegetation composition,though some differences also exist in different agricultural *** farmlands and vegetable lands,Poaceae pollen has the highest percentages (averaging 2.%) compared to other agricultural units with dominant corn or wheat pollen,while in wastelands and woodlands,arboreal and Artemisia pollen percentages have higher values (averaging 2.% and 19% respectively).Cruciferae has the highest pollen percentages (70%) in *** pollen assemblages and PCoA can generally identify the vegetable plots,farmlands,woodlands,wastelands,and *** and Artemisia pollens mainly appear in the western part of Anyang,which is consistent with the parent plants;Poaceae pollen mainly exist in the eastern part with more farmlands;Chenopodiaceae pollen mainly appear in the urban areas and near major roads where human influences are stronger,Cruciferae pollen can mainly be found in the urban area and in the northwest part of Anyang where more vegetables are planted.

关键词：安阳地区空间分布花粉组合单位农业

A possible Younger Dryas-type event during Asian monsoonal Termination 3

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Science china Earth Sciences 2006年第9期49卷 982-990页

作者： CHEN Shitao1, WANG Yongjin1, KONG Xinggong1, LIU Dianbing1, CHENG Hai2.& R.L. Edwards2.1. College of Geography Science, Nanjing normal university, Jiangsu {2. laboratory of environmental change and Ecological Construction, Nanjing 2.0097, china 2. Department of Geology and Geophysics, university of Minnesota, Minneapolis MN55455, USA 1. College of Geography Science Nanjing Normal University Jiangsu Key Laboratory of Environmental Change and Ecological Construction Nanjing 210097 China 2. Department of Geology and Geophysics University of Minnesota Minneapolis MN 55455 USA

Seven U-Th dates, 560 δ 18O data and microscopic sequences were measured for sta- lagmites from two high-altitude caves in Shennongjia area, Hubei Province. Variations of the de- cadal-resolution stalagmite δ 18O record from Swan Cave (1600 m elevation) reflect large spatial changes in circulation strength and precipitation of Asian monsoon. The evidence comes from a great similarity among the stalagmite δ 18O records from Nanjing, Jiangsu Province; Libo, Guizhou Province and here studied area during the last deglaciation, including a part interval of Younger-Dryas event and Bolling-Allerod. A 30-year-resolution stalagmite δ 18O record from Yongxing Cave (1400 m eleva- tion), 70 km away from Swan Cave, reveals a rapid transition of Asian monsoon climate during Ter- mination 3 at about 2.5±5 kaBP. Based on 3 U-Th dates and about 5000 continuous annual bands, a millennial dry episode has been observed during Asian monsoonal Termination 3 from the Yongxing δ 18O profile. With respect to its structure, duration and transition, the dry reversal, as indicated by our stalagmite δ 18O record, generally agrees with the pattern of the YD event well-expressed in the Chi- nese stalagmite δ 18O records. This YD-type event is characterized by a large decrease in δ 18O value as much as 2.30‰, more than half of the δ 18O excursion between glacial/interglacial periods, and lasts 1371±59 a determined by the annual counting chronology. After this event, the monsoon climate shifted abruptly into the interglacial period within 74±4 a. Our data corroborate the view that the re- peated occurrence of YD-type event was not an “accident”, possibly resulted from the coupling of ice-sheet and oceanic/atmospheric circulations.

关键词： stalagmite, Termination 3, Asian monsoon, YD-type event, Shennongjia, Hubei Province.

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从环境教育到可持续发展教育

学科教育 2004年第8期 7-11页

作者：田青北京师范大学环境教育中心北京100875

作为人类赖以生存与发展的基础 ,地球环境长期没能受到人类应有的尊重与爱护 ,导致当前人类面临的环境危机。而危机的解决 ,需要人类对现行生产与生活方式全面地反思并进行根本性地改变。教育作为转变思想的工具 ,其作用无可替代。环境... 详细信息

作为人类赖以生存与发展的基础 ,地球环境长期没能受到人类应有的尊重与爱护 ,导致当前人类面临的环境危机。而危机的解决 ,需要人类对现行生产与生活方式全面地反思并进行根本性地改变。教育作为转变思想的工具 ,其作用无可替代。环境教育被看好能承担这样的任务促进这种转变 ,但 30年来的环境教育却被认为是场失败的革新。是现代教育助长了当今的环境问题 ,成为不可持续发展的“贡献者”。在我们目前的状况下 ,可持续发展教育可能是回到那些内在自由、进步的价值观的惟一途径 ,这些价值观曾经是我们教育系统的基础。可持续发展教育是将要改变的教育模式的关键 ,这种教育模式和社会经济组织变化与可持续发展暗含的思想是相和谐的。主流教育观点认为 ,可持续发展教育深深地根植于环境教育之中。目前可持续发展教育的理论和实践都还未完善 ,尚处在探索阶段。在我国新一轮基础教育课程改革中 ,环境教育正在和当前的整体教育改革结合起来 ,推动我国教育的生态化或绿色化。

关键词：环境教育可持续发展基础教育环保意识教学模式

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中国降雨侵蚀力空间变化特征

山地学报 2003年第1期21卷 33-40页

作者：章文波谢云刘宝元北京师范大学资源与环境科学系环境演变与自然灾害教育部重点实验室北京师范大学资源与环境科学系环境演变与自然灾害教育部重点实验室北京　100875

降雨是导致土壤侵蚀的主要动力因素,通用土壤流失方程(USLE)中降雨侵蚀力因子R反映了降雨气候因素对土壤侵蚀的潜在作用。为更精确估算降雨侵蚀力,以全国564个测站1971～1998年的逐日降雨资料为基础,采用一种新方法估算降雨侵蚀力,分析... 详细信息

降雨是导致土壤侵蚀的主要动力因素,通用土壤流失方程(USLE)中降雨侵蚀力因子R反映了降雨气候因素对土壤侵蚀的潜在作用。为更精确估算降雨侵蚀力,以全国564个测站1971～1998年的逐日降雨资料为基础,采用一种新方法估算降雨侵蚀力,分析全国降雨侵蚀力空间变化特征。结果显示全国降雨侵蚀力的空间分布与降雨量近似,但降雨降雨侵蚀力取决于降雨量和降雨强度两个方面,因此二者的空间分布又存在许多差别。一般在降雨侵蚀力较小地区,降雨侵蚀力的年内分配非常集中,全国大部分地区降雨侵蚀力年际变化表现出正的趋势,江西和湖南等交界的部分地区为明显的正趋势中心。

关键词：降雨侵蚀力空间分布时间变化日雨量土壤侵蚀

土地沙漠化过程的土壤风蚀率指标——以青海共和盆地为例

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水土保持学报 2003年第4期17卷 90-93页

作者：张春来邹学勇董光荣北京师范大学中国沙漠研究中心教育部环境演变与自然灾害重点实验室北京100875 中国科学院寒区旱区环境与工程研究所兰州730000

由风蚀所导致的土壤物质再分配过程,决定了土地沙漠化的程度。根据半干旱干草原地区不同程度沙漠化土地土壤风蚀率的137Cs示踪结果,沙漠化各个阶段的土壤风蚀率指标为:潜在沙漠化土地以微弱堆积和微度风蚀为特征,风蚀率小于2.00kg/(hm2...

由风蚀所导致的土壤物质再分配过程,决定了土地沙漠化的程度。根据半干旱干草原地区不同程度沙漠化土地土壤风蚀率的137Cs示踪结果,沙漠化各个阶段的土壤风蚀率指标为:潜在沙漠化土地以微弱堆积和微度风蚀为特征,风蚀率小于2.00kg/(hm2.a);轻度沙漠化土地风蚀率介于2.00～7000kg/(hm2.a)之间;中度沙漠化土地风蚀率大于7000kg/(hm2.a);重度沙漠化土地风蚀和堆积都很强烈,地表物质交换迅速,没有必要制定风蚀指标。

关键词：土地沙漠化土壤风蚀风蚀率指标青海共和盆地半干旱干草原地区

Pollen assemblage characteristics of lakes in the monsoon fringe area of china

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Chinese Science Bulletin 2008年第4期53卷 3354-3363页

作者： TIAN Fang1,2.XU QingHai1,2.3,LI YueCong1,2.CAO XianYong1,2.WANG XueLi1,2.& ZHANG LiYan1,2.1 College of Resources and environmental Sciences,Hebei normal {2.,Shijiazhuang 050016,china 2.Hebei key laboratory of environmental change and Ecological Construction,Shijiazhuang 050016,china 3 key laboratory of Western china’s environmental System(ministry of education),Lanzhou {2.,Lanzhou 730000,china College of Resources and environmental Sciences Hebei Normal University Shijiazhuang 050016 China Hebei key laboratory of {2. change and Ecological Construction Shijiazhuang 050016 China key laboratory of Western{2.’s environmental System (ministry of education) Lanzhou University Lanzhou 730000 China

This paper presents the pollen assemblages from 108 surface sediment samples from 4 lakes(the Lake Daihai,Lake Hongjiannao,Lake Hulunnao and Lake Duikounao) in the monsoon fringe area of *** herb pollen taxa Artemisia,Chenopodiaceae,Poaceae and Compositae are the major components of pollen assemblages of the 4 lakes and Pinus,Betula,Quercus,Ulmus,Populus,Ostryopsis and Elaeagnaceae are frequently presented,which reflect regional and local vegetation *** mean similarity coefficients for samples from the Lake Daihai,Lake Hongjiannao,Lake Hulunnao and Lake Duikounao are 0.66 ± 0.17,0.71 ± 0.11,0.73 ± 0.12.and 0.67 ± 0.12.respectively,so pollen assemblages are relatively consistent in each lake,which shows that focusing and mixing effects have occurred before and after pollen ***,pollen assemblages do differ between sampling sites in each *** largest difference is seen in the Lake Daihai,followed by the Lake Duikounao,Lake Hulunnao and Lake Hongjiannao(The mean Euclidean distance is 2..09 ± 11.11,11.2. ± 3.64,10.67 ± 4.03 and 8.44 ± 4.51 respectively).These differences are possibly caused by the differences of focusing and mixing effects,pollen source areas,drainage areas and regional vegetation *** Lake Daihai and Lake Hongjiannao have water deeper than 5 m and strong re-suspension,focusing and mixing effects occur in the lakeshore and shallow water areas,where pollen concentrations are lower than in deeper lake *** the Lake Hulunnao and Lake Duikounao,with depths less than 5 m,re-suspension and mixing effects are obvious across the whole lake area,so pollen assemblages and pollen concentra-tions are more consistent among sampling sites in each *** between the lake samples and samples from the inflowing river reveals that wind is primary pollen transportation force in the Lake Hongjiannao,where the consistency of pollen assemblage is conspicuous,while there is greater variation in lakes where pollen input is

关键词：湖泊花粉相似系数欧几里得季风

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Effects of Amino Acids Replacing Nitrate on Growth,Nitrate Accumulation,and Macroelement Concentrations in Pak-choi (Brassica chinensis L.)

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Pedosphere 2007年第5期17卷 595-600页

作者： WANG Hua-Jing WU Liang-Huan WANG Min-Yan ZHU Yuan-Hong TAO Qin-Nan ZHANG Fu-Suo ministry of education {2. laboratory of environmental Remediation and Ecosystem Health College of Environmental and Resource Sciences Zhejiang University Hangzhou 310029 （China） College of Geography and Resource Sciences Sichuan Normal University Chengdu 610066 （China） Department of Crop and Soil Sciences the Pennsylvania State University （USA） College of Resources and Environment China Agricultural University Beijing 100094 （China）

A hydroponic experiment was carried out to determine the influence of replacing 2.% of nitrate-N in nutrient solutions with 2. individual amino acids on growth, nitrate accumulation, and concentrations of nitrogen （N）, phosphorus （P）, and potassium （K） in pak-choi （Brassica chinensis L.） shoots. When 2.% of nitrate-N was replaced with arginine （Arg） compared to the full nitrate treatment, pak-choi shoot fresh and dry weights increased significantly （P ≤ 0.05）, but when 2.% of nitrate-N was replaced with alanine （Ala）, valine （Val）, leucine （Leu）, isoleucine （Ile）, proline （Pro）, phenylalanine （Phe）, methionine （Met）, aspartic acid （Asp）, glutamic acid （Glu）, lysine （Lys）, glycine （Gly）, serine （Ser）, threonine （Thr）, cysteine （Cys）, and tyrosine （Tyr）, shoot fresh and dry weights decreased significantly （P ≤ 0.05）. After replacing 2.% of nitrate-N with asparagine （Asn） and glutamine （Gin）, shoot fresh and dry weights were unaffected. Compared to the full nitrate treatment, amino acid replacement treatments, except for Cys, Gly, histidine （His）, and Arg, significantly reduced （P ≤0.05） nitrate concentrations in plant shoots. Except for Cys, Leu, Pro, and Met, total N concentrations in plant tissues of the other amino acid treatments significantly increased （P ≤ 0.05）. Amino acids also affected total P and K concentrations, but the effects differed depending on individual amino acids. To improve pak-choi shoot quality, Gln and Asn, due to their insignificant effects on pak-choi growth, their significant reduction in nitrate concentrations, and their increase in macroelement content in plants, may be used to partially replace nitrate-N.

关键词： amino acids growth N P and K nitrate accumulation pak-choi