Notes     

《The Journal of geography》2012,111(3):132-143

Abstract

J. N. L. Baker. The History of Geography. Barnes &; Noble, Inc., 105 Fifth Ave., New York 3, N.Y., 1963. xxviii and 266 pages with table of contents and index. $7.50.

R. J. Harrison Church. Environment and Policies in West Africa. D. Van Nostrand Co. Inc., 120 Alexander St., Princeton, N.J., 1963. 135 pages with table of contents, maps, diagrams and general index. $1.45.

Richard M. Highsmith, and J. Granville Jensen. Geography of Commodity Production, Second Edition. J. B. Lippincott Co., East Washington Sq., Philadelphia 5, Pa., 1963. 515 pages with table of contents, maps, photographs, graphs and index. $7.95.

Oliver H. Heintzelman and Richaid M. High-smith, Jr., World Regional Geography. Prentice-Hall, Inc., Englewood Cliffs, N.J., 1963, 2nd edition. 391 pages with table of contents, pictures, maps, diagrams, and index. $7.95.

Gerd Fraenkel with Lindley J. Stiles. Today's World in Focus: Israel. Ginn and Co., Statler Building, Boston 17, Mass., 1963. 122 pages with table of contents with black and white photographs with colored illustrations, appendices and bibliography. $1.40.

Thomas Sterling. Exploration of Africa. Horizon Caravel Books, 551 Fifth Ave., New York 17, N.Y., 1963. 153 pages with table of contents, maps, color and black and white illustrations and index. $3.95.

C. W. Harrison. Conservationists and What They Do. Franklin Watts, Inc., 575 Lexington Ave., New York 22, N.Y., 1963. 170 pages with table of contents and index. $3.95.

William Trout Chambers and Lorrin Kennamer, Jr. Texans And Their Land. The Steck Co., P.O. Box 16, Austin, Tex., 1963. 232 pages with table of contents, black and white pictures, colored maps, appendix, bibliography and index. $4.88.

Olive Burt. The First Book of Utah. Franklin Watts, Inc., 575 Lexington Ave., New York 22, N.Y., 1963. 66 pages with table of contents, general map of Utah, photographs and an index. $2.50.

Bernt Lloyd Wills. North Dakota: The Northern Prairie State. B. L. Wills, University of North Dakota, Grand Forks, N.D., 1963. 318 pages with table of contents, black and white pictures and black and white illustrations and index. $4.80.

Mary Foley Horkheimer and John W. Differ, (compilors and editors). Educators Guide to Free Filmstrips. Educators Progress Service, Randolph, Wis., 1963. 15th Annual Edition with 159 pages, table of contents and indices. $6.00.

Patricia Horkheimer Suttles, (editor). Educators Guide to Free Social Studies Materials. Educators Progress Service, Randolph, Wis., 1963. 402 pages with XV pages editorial comment and table of contents. $6.75.

C. B. Hitchcock and O. M. Miller. Nine Glacier Maps, Northwestern North America with Text. Special Publication No. 34. American Geographical Society, 156th St. and Broadway, New York 32, N.Y., 1960. 22 pages with table of contents, three appendices, one table, one locational text map, 15 photographs and nine separate topographic maps. $3.00.

Harry M. Caudill. Night Comes To The Cumberlands. Little, Brown &; Co., 128 Oliver St., Paterson 1, N.J., 1963. 394 pages with table of contents and black and white photographs. $6.75.  相似文献   

陕北风沙区大保当煤矿开采的生态影响分析     

钱者东  秦卫华  李道进 《西部资源》2012,(1):84-86

陕北风沙区位于毛乌素沙地东南缘,是毛乌素沙地向黄土高原的过渡地带,自然环境十分脆弱。本文通过对陕北风沙区大保当井田进行实地调查研究,结合遥感影像,运用图形叠置法、类比分析法和生态机理法分析了在该地区进行煤矿开采对当地自然植被、野生动物以及神木臭柏自然保护区的影响,并提出相应的生态保护措施。  相似文献   

莫莫格国家级自然保护区的鱼类多样性     

杨富亿  吕宪国  娄彦景  娄晓楠  薛滨  姚书春  肖海丰  王波 《湿地科学》2012,10(2):214-222

2008～2010年,在鱼类资源调查的基础上,分析了莫莫格国家级自然保护区的鱼类多样性特征。调查结果显示,莫莫格国家级自然保护区有鱼类物种5目11科42属49种,其中本区土著种5目10科38属45种,包括中国特有种4种,中国易危种5种,冷水种8种,国家II级保护动物1种。土著种群落中,有鲤形目(Cyprini-formes)鱼类32种,鲤科(Cyprinidae)鱼类29种,鮈亚科(Gobioninae)鱼类13种;古北界北方区黑龙江亚区黑龙江分区的物种为22种;源于东部平原和北方平原生态类群的鱼类有27种;适应于江—湖缓流环境和淡水定居生活的鱼类有33种;草上产卵和水层产卵繁殖的鱼类有37种;杂食性和初级肉食性种类有28种,它们均相对占优势。莫莫格国家级自然保护区与嫩江的鱼类群落物种结构Jaccard系数和Morisita-Horn相似性指数分别为0.918和0.838;稀有种(包括中国易危种)和常见种分别为14种和25种;物种多度格局近似于对数正态分布。这些结果表明,莫莫格国家级自然保护区的鱼类多样性与嫩江密切相关,鱼类区系复杂,物种组成与生态类型多样;群落结构相对较稳定,多样性程度相对较高,但仍面临着稀有种(包括中国易危种)尚占有一定比例而导致群落结构脆弱的潜在威胁。保持嫩江鱼类群落结构的稳定,对维护和发展莫莫格国家级自然保护区的鱼类多样性具有特别重要的意义。  相似文献   

遗传算法优化的支持向量机湿地遥感分类——以洪河国家级自然保护区为例   总被引：6，自引：1，他引：5  

臧淑英  张策  张丽娟  张玉红 《地理科学》2012,(4):434-441

湿地遥感分类作为湿地管理、监测与评价的重要手段,受到了广泛的关注。遗传算法(GA)借鉴了生物进化规律进行启发式搜索寻优,支持向量机(SVM)是一种新型的空间数据挖掘方法,二者相结合可以发挥各自的优势,寻找到支持向量机的全局最优参数,从而较准确地对湿地进行遥感分类。以洪河自然保护区为例,采用遗传算法优化的支持向量机方法进行了湿地遥感分类研究。同格网搜索下的支持向量机湿地遥感分类及最大似然监督分类对比,结果表明,遗传算法优化较格网搜索方式总精度提高了7.29%,较最大似然监督分类提高了12.06%,方法改善了沼泽、草地与裸地三种地物间的区分,是湿地遥感分类的有效手段。  相似文献   

近30年羌塘自然保护区气候特征分析   总被引：1，自引：0，他引：1  

李林  杨秀海  扎西央宗  巴桑顿珠 《四川气象》2010,(1):62-65

本文利用羌塘自然保护区周边6个气象站1978～2007年30年数据,利用气候统计方法,分析了温度、积温、降水的趋势变化。结果表明：该地区年平均温度、年平均最高温度、年平均最低温度都呈上升趋势,且上升幅度远远大于全球、全国平均水平;≥0℃积温、≥5℃积温呈增加趋势,初日提前,终日推迟,持续日数增加;降水的区域特征明显,自东向西呈递减趋势。年降水量呈上升趋势。  相似文献   

MATLAB 平台下基于克立格理论的固体资源储量估算 系统的开发与实践     

陈聆 《地质与勘探》2009,45(3):287-291

文章以MATLAB技术为平台,以西藏自治区雄村铜矿床为实例,详细讨论了如何开发以克立格理论为基础的固体资源储量估算系统,其中包括模块:数据预处理、变异函数分析、克立格估值、储量估算、地质可靠度评价等.论文使用该系统对西藏自治区雄村铜矿床进行储量预测,得出结果数据表格;并对原生矿体、次生矿体、氧化矿体、总矿体、矿体的自然形态以及在工业品位规范下的矿体形态进行拟合.通过与专业储量估算软件Minesjght的估算结果对比,证明了本系统的可靠性和实用性.  相似文献   

基于GIS的盐城国家级自然保护区生态安全评价（英文）     

李海萍  高戈  李菁 《资源与生态学报(英文版)》2020,11(1):38-49

本研究利用遥感和GIS技术,分析盐城自然保护区1983–2018年的景观格局变化,建立了基于区域自然-社会-经济复合生态系统安全格局的评价指标体系,分析了生态安全变化的空间特征和成因。结果表明,1983–2018年由于人类活动加剧,研究区内景观格局变化强烈,从以自然景观为主发展到自然景观与人工景观并存。在整体生态安全方面,目前保护区的生态安全状况不容乐观,从保护区丹顶鹤的生存状态看,保护区总体上还是适宜丹顶鹤栖息的,但由于人类活动的增加以及政策的调整,丹顶鹤的栖息地呈现破碎化并向核心区和缓冲区等局部区域聚集。我们应从管理、政策制定以及当地居民的环境保护意识上增加宣传和投入,并相应减少保护区内人类活动的强度。  相似文献   

广东雷州珍稀海洋生物国家级自然保护区水体和沉积物中石油类含量与分布特征          下载免费PDF全文

刘芳  柯盛  周立喜  陈成琼  陈耀 《海洋开发与管理》2020,37(1):69-74

为了探讨广东雷州珍稀海洋生物国家级自然保护区海域水体和沉积物中石油类的含量及其分布特征,文章于2017年和2018年分别对保护区海域的石油类进行了调查。结果表明,保护区表层水体石油类含量为0.003~0.066mg/L,平均含量为0.015mg/L,平均污染指数为0.30,保护区水体中的石油类基本符合一类海水水质标准。保护区表层沉积物中石油类含量为3.0~54.8mg/kg,平均值为11.109mg/kg,符合海洋沉积物第一类质量标准。保护区水体和沉积物中石油类含量的变化规律基本相似,但是沉积物中石油类含量的变化更大。根据调查数据分析,保护区水体中石油类的主要来源是保护区社区小型渔船航行排放的石油类,以及保护区周边渔船在航行过程排放的石油类扩散到保护区海域。  相似文献   

An assessment of land cover change as a source of information for conservation planning in the Vhembe Biosphere Reserve     

《Applied geography (Sevenoaks, England)》2017

Determining changes in land use/land cover (LULCC) can be used to assess and monitor habitat loss as one of the five global priority causes of biodiversity loss. In South Africa, two national land-cover (NLC) datasets have been developed from satellite imagery obtained in circa 1990 and 2013/2014. The Vhembe Biosphere Reserve (VBR), designated in 2009, is located in the north of the Limpopo Province in South Africa and has a surface area of 30,457 km². The aim of biosphere reserves is to provide a landscape-scale framework for conservation and sustainable development of an area. The area within a biosphere reserve is prioritised by designating it into one of three zones 1) Core, 2) Buffer, and 3) Transitional Zones. Two national parks and six provincial reserves (PAs) are the current and form part of the proposed updated core areas (pCAs) of the VBR. Intensity analyses was used to assess LULCC in the VBR. The pCAs cover 39.7% of the surface area of the VBR. The PAs cover 39.7% and only 15.8% of the surface area of the pCAs and VBR respectively. Based on the NLC 2013/2014 a majority of the VBR, pCAs and PAs consisted of indigenous vegetation dominated by Woodland/Open bush, Grassland, and Thicket/Dense bush. The extent of transformed land in the VBR declined from 1990 to 2013 by 1697.7 km². The total amount of change and mean annual change in the VBR was 53.1% and 2.31% respectively. The overexploitation of fuel wood by rural communities in rural areas of the VBR, was partly responsible for the targeted loss of Woodland/Open bush to Thicket/Dense bush and Grasslands. The unquantified presence of novel vegetation and alien invasive plants means that the NLC 1990 and 2013/2014 overestimates the quantity and distribution of the remaining indigenous vegetation in the VBR. In order to address this the distribution of alien and indigenous invasive plant species in the VBR needs to be determined and used to update future NLCs. Assuming a worse-case-scenario of all the coal deposits in the VBR, including the Kruger National Park, being mined it would amount to 24.7% of the surface area of the VBR. Only 6.8% of the area of all the coal deposits in the VBR was transformed with 93.2% currently remaining untransformed. It is recommended that transformation of indigenous vegetation to one of the seven transformed land cover categories and more specifically from coal mining should be restricted to the VBR's Transition Zones.  相似文献   

基于HJ-1A高光谱影像的湿地精细分类     

张雅春  那晓东  臧淑英 《地理科学进展》2018,37(12):1705-1712

混合像元的存在不仅影响了基于高光谱影像的地物识别和分类精度,而且已成为遥感科学向定量化发展的主要障碍。本文以扎龙湿地为试验区,以环境一号卫星采集的高光谱影像为数据源,分别采用传统的全约束最小二乘光谱解混算法(fully constrained least squares spectral unmixing algorithm, FCLS)与基于稀疏约束最小二乘光谱解混算法(sparse constrained least squares spectral unmixing algorithm, SUFCLS)实现了试验区湿地的精细分类,并对两种分类结果的表现及其分类精度进行了对比分析。研究结果表明：SUFCLS算法能够自适应的从光谱库中选择场景中所占比例最高的一组端元,并将此端元的组合应用于传统的全约束最小二乘光谱解混中实现不同湿地类型丰度的提取,该算法充分考虑了端元的空间异质性,弥补了FCLS算法在端元选取过程中的不足。精度验证结果表明与FCLS算法相比,SUFCLS算法分类结果的均方根误差更小,丰度的相关系数更高,因此该方法对于提高湿地解混精度以及实现湿地精细化分类具有重要意义。  相似文献