Assessment and Management Strategies for Ungulate Population in Jiangxi Matoushan National Nature Reserve: Predicting the Prey-base from Empirical Field Data     

PAN Guoliang  LAGUARDIA Alice  HUETTMANN Falk  SHI Kun 《资源与生态学报(英文版)》2016,7(5):397-406

In order to investigate the feasibility of reintroducing the South China tiger (Panthera tigris amoyensis) in the Jiangxi Matoushan National Nature Reserve, field surveys were conducted to assess prey distribution in the reserve. Twelve permanent transects were set in three distinct functional zones from February to April 2012 and May to July 2013. A total of 112 ungulate signs were recorded on these transects. In addition, 20 camera traps were used to survey ungulates and predators in 2012, while the following year we extended the survey site by using 30 cameras. Overall, 6641 capture events on 2930 camera days were obtained, presenting a variety of ungulate species: muntjak (Muntiacus muntjak), tufted deer (Elaphodus cephalophus), serow (Capricornis sumatraensis) and wild boar (Sus scrofa). Population structure and composition of ungulates was compared in different functional zones using a single factor of variance analysis in SPSS software. Significant differences in the distribution of ungulates were recognized between the core zone and experimental zone, but not in other zones due to differences in habitat types and management practices of the nature reserve. Using ArcGIS analysis and Salford Predictive Modeler software, we ran several predictive models to understand which areas are most suitable for ungulates. We conclude that muntjac and wild boar are mainly distributed in the experimental zone, serow are more common in the core zone, while tufted deer are located evenly in the three functional zones. Finally, suggestions for effective and feasible management strategies and techniques for Matoushan National Nature Reserve were recommended based on the results and analysis in this study.  相似文献   

REINTERPRETING THE WASHITA BATTLEFIELD NATIONAL HISTORIC SITE*     

DOUGLAS A. HURT 《Geographical review》2010,100(3):375-393

Geographers have long attempted to interpret sacred and symbolic landscapes as representative of the ideals of individuals, communities, and cultures. This article assesses the changing historical and contemporary interpretations of the Washita Battlefield National Historic Site and gauges the impact of these conflicting viewpoints. The Washita Valley in western Oklahoma was the location of a November 1868 engagement between U.S. military forces commanded by George Custer and the Cheyenne camp of Black Kettle. Since that date, non‐native narratives have dominated Washita interpretation. Today, plans are being developed to emphasize Cheyenne viewpoints of the Washita and to alter the commemorative landscape of the site in order to better present a balanced historical narrative to visitors. Since 1868 three themes have dominated interpretation of the Washita: conflict, indifference, and memorialization.  相似文献   

近30年珠穆朗玛峰国家自然保护区冰川变化的遥感监测   总被引：18，自引：2，他引：16  

聂勇  张镱锂  刘林山  张继平 《地理学报》2010,65(1):13-28

利用1976、1988和2006年的3期陆地卫星遥感数据,采用面向对象的解译方法并结合专家知识分类规则自动提取珠穆朗玛峰国家自然保护区(以下简称珠峰保护区)3个时期的冰川信息,并利用遥感、地理信息系统和图谱的方法对冰川时空分布特征和变化及其原因与不确定性进行了分析。结果如下:(1)2006年珠峰保护区内冰川面积为2710.17±0.011km²,为研究区总面积的7.41%,主要分布在研究区南部海拔4700～6800m的高山区;(2)1976-2006年,珠峰保护区冰川持续退缩明显,总面积减少501.91±0.035km²,冰湖扩张迅速(净增加36.88±0.035km²);研究区南坡子流域冰川退缩率(16.79%)高于北坡子流域(14.40%);珠峰保护区冰川以退缩为主,退缩冰川主要分布于海拔4700～6400m,退缩区上限海拔为6600～6700m;(3)1976年以来,气温显著上升和降水减少是冰川退缩的关键因素。  相似文献   

北京市制造业分布的圈层结构演变——基于第一、二次基本单位普查资料的分析   总被引：10，自引：4，他引：6  

刘涛  曹广忠 《地理研究》2010,29(4):716-726

基于第一、二次基本单位普查的企业数据,以邮区为基本空间单元,以制造业密度突变和总量增减为标准,将北京市划分为三个圈层:制造业衰退的中心城区已蔓延至四环;投资和外迁企业的集中区也已不限于城八区,而是迅速扩展至平原地区大部;远郊区县和山区的制造业发展缓慢。各产业类型、所有制类型和规模等级的制造业圈层结构及其演变均有较大差异。因素分解表明,北京市制造业圈层结构演变的主要推动力是电气电子和金属与矿物类产业、私有企业和大中型企业;企业规模结构的小型化和产业结构调整也有一定的促进作用。研究认为应充分重视产业结构调整与空间布局调整的结合,遏止和扭转各圈层内产业结构均衡化和圈层间产业结构同质化的趋势。近郊平原制造业的核心地位仍将长期保持,用地集约化至关重要;中心城区可以适度发展都市型制造业,促进就业多样化;远郊化的谨慎推进则应以生态保育为前提。  相似文献   

龙虎山世界地质公园丹霞景观特征及其科学价值     

胡中华  郭福生 《火山地质与矿产》2010,(1):71-78

江西龙虎山世界地质公园是一个集地质、地貌、人文、自然生态景观为一体的综合性地质公园,其中以丹霞地貌景观最具特色。它是国内发育老年早期丹霞地貌的典型地区之一,以孤峰、峰林、残丘等丹霞地貌景观为特色。公园内拥有丹霞地貌景观、丹霞水体景观、丹霞生态景观和丹霞文化景观等4大丹霞类型。地质公园的地质遗迹记录了中生代以来地球历史的丰富信息和演化过程,展示了世界上一些重要地质事件的突出证据;孕育了分布最密集、造型最精美的造型石;是世界上极具濒危的中华秋沙鸭最大群体的越冬地;古崖墓文化、道教文化、佛教文化等历史人文遗迹以其独特的方式融汇在具有突出价值的自然美之中,构成了人与自然和谐共处的最富特色的例证。这些具有国际意义的自然现象、自然演化过程和杰出的天然美景集中展示于公园,具有不可替代的美学价值、科学价值和重要的保护意义。  相似文献   

论国家安全的概念及其特点   总被引：8，自引：0，他引：8  

刘卫东  刘毅  马丽  刘玉 《世界地理研究》2002,11(2):1-7

国家安全是世界各国国家战略的核心内容之一;本文着重讨论国家安全概念、特点以及全球化下国家安全的新趋势。本文认为,国家安全是一个内涵简单、但外延广泛且不断演化的概念。从根本上讲,国家安全是维持主权国家存在和保障其根本利益的各种要素的总和。既包括传统的政治安全和军事安全,也包括非传统的、非军事领域的经济安全、社会安全、科技安全和资源环境安全等。国家安全具有假设性、复杂性、演变性、层次性和非显性等特点。不断加强的全球化趋势为主权国家的国家安全带来新的内容和挑战;经济竞争力的较量、文化价值观念的冲突、信息“侵略”和“反侵略”等在国家安全事务中的地位将越来越重要。  相似文献   

Impact of the National Tsunami Hazard Mitigation Program on Operations of the Richard H. Hagemeyer Pacific Tsunami Warning Center     

Charles?S.?McCreeryEmail author 《Natural Hazards》2005,35(1):73-88

The first 7 years of the National Tsunami Hazard Mitigation Program (NTHMP) have had a significant positive impact on operations of the Richard H. Hagemeyer Pacific Tsunami Warning Center (PTWC). As a result of its seismic project, the amount and quality of real-time seismic data flowing into PTWC has increased dramatically, enabling more rapid, accurate, and detailed analyses of seismic events with tsunamigenic potential. Its tsunameter project is now providing real-time tsunameter data from seven strategic locations in the deep ocean to more accurately measure tsunami waves as they propagate from likely source regions toward shorelines at risk. These data have already been used operationally to help evaluate potential tsunami threats. A new type of tsunami run-up gauge has been deployed in Hawaii to more rapidly assess local tsunamis. Lastly, numerical modeling of tsunamis done with support from the NTHMP is beginning to provide tools for real-time tsunami forecasting that should reduce the incidence of unnecessary warnings and provide more accurate forecasts for destructive tsunamis.  相似文献   

华北峡谷珍品--河北野三坡"百里峡构造-冲蚀嶂谷"的成因   总被引：4，自引：0，他引：4  

宋志敏聂泽同  赵崇贺梁定益 《地质通报》2005,24(6):582-587

野三坡国家地质公园位于紫荆关大断裂北端,河北涞水县境内。百里峡构造一冲蚀嶂谷由3条分裂嶂谷组成,总长达52．5h,发育在紫荆关大断裂东侧的中元古界雾迷山组燧石条带白云岩中。中一新生代4期宏大而直立的构造节理,特别是喜马拉雅期南北向追踪张节理,是嶂谷形成的先决条件;更新世阶段地壳迅速的抬升、外力的物理风化作用,特别是晚更新世间歇性山区洪水的冲蚀,是形成嶂谷的直接原因。百里峡构造一冲蚀嶂谷是喀斯特地貌中一种特殊的类型。  相似文献   

河北省涞水县野三坡国家地质公园：地质遗迹的地质意义和4期节理的导控作用   总被引：4，自引：1，他引：3  

梁定益赵崇贺  聂泽同宋志敏 《地质通报》2005,24(2):189-195

野三坡国家地质公园位于太行山断隆与燕山“台褶带”的结合部,两构造单元以紫荆关大断裂为界。公园内地质遗迹丰富,其地质内涵是华北地质的精髓。发育4期宏大构造节理,分别与印支期华南板块、燕山期伊佐奈歧板块、华北期太平洋板块和喜马拉雅期印度板块的挤压有关。4期节理,特别是喜马拉雅期南北向“追踪张节理”,对园区构造地貌景观的形成起着关键作用。  相似文献   

基于ASP技术的空间数据交换中心安全性问题研究     

张立  龚健雅 《武汉大学学报(信息科学版)》2000,25(1)

针对国家空间数据交换中心的安全性问题,通过一个实例从数据存储、数据库维护、动态网页技术（ＡＳＰ）进行了深入的研究和探讨,并进一步说明了ＡＳＰ技术在动态站点安全性维护中的诸多优势。  相似文献