南昌市地下水特征及其应急水源地分析

该文从地下水类型、含水岩(层)组的空间分布和地下水的补给、迳流、排泄条件及动态变化规律等方面介绍了南昌地区地下水的基本特征。以城市规划为基础,根据区域水文地质条件,选择扬子洲—南新一带和广福—向塘一带作为地下水应急水源地。并阐述了各水源地水文地质条件、地下水资源量、水质及开发利用现状。     

江西崇义八仙脑钨锡多金属矿床特征及找矿方向

江西省崇义县八仙脑破碎蚀变岩型钨锡多金属矿床产于燕山期花岗岩内外接触带,受一组近东西向断裂控制。矿区已知矿化带(体)12条。以V3矿带为主的6条矿化带(体),主要有用组分钨、锡,并伴生有铅、锌、铜、银等元素,品位高、规模大、矿床类型独特、具良好找矿远景。本文重点阐述矿床的地质特征、成因,及该类型矿床的找矿方向。     

江西火山岩型铀矿成矿特征及找矿前景

江西省居华南铀成矿区(省)的中心地带。省区内地层发育齐全，岩浆活动频繁，地质构造复杂，成矿条件优越，矿产资源丰富。火山岩型铀矿是我国四大铀矿工业类型之一，江西火山岩型铀矿在我国已探明的铀矿资源量中占相当重要的地位。本文在分析江西地质构造背景和江西铀矿分布特征的基础上，详细阐述了江西火山岩型铀矿成矿规律，分析了江西火山岩型铀矿的找矿前景，为华东火山岩型富大铀矿的寻找提供依据。     

江西省丹霞地貌发育规律及旅游区划研究

江西省燕山—喜马拉雅运动以块断作用为主,形成了一系列断裂隆起带和断陷盆地,白垩纪、早第三纪红层发育齐全。丹霞地貌主要发育于上白垩统紫红色含钙粗碎屑岩中,受盆缘断裂和中幼年河流控制,是晚第三纪以来新构造运动间歇性隆升,伴随着断裂切割、流水冲刷和风化剥蚀的产物。根据陆地卫星TM图像解译和野外实地调查,查明了全省共有丹霞地貌景观资源123处,其中新发现景点78处。丹霞地貌景观主要分布在该省周边丘陵低山区,明显受不同级别河流的流域控制,具带状分布规律,可划分出9个景观集中分布区域。赣东、赣东南丹霞地貌景观最为密集,结合红色旅游和客家文化特色,该区具有强劲的丹霞地貌旅游开发潜力。     

江西武山铜矿稀土元素特征

武山铜矿是由两件类型的铜矿体组成,即产于上石炭统黄龙组底部的碎屑岩与碳酸盐岩之间的层状含铜黄铁矿矿体和产于花岗闪长班岩内外接触带的矽卡岩型铜矿体。稀土元素组成特征研究结果表明,上述两种类型矿体的矿石和矿石矿物在稀土元素组成持征上具有明显区别．这为探讨武山铜矿的成因提供了一个方面的信息。     

西藏南部地区旅游资源特征

受复杂地质作用、强烈新构造运动以及藏族传统文化的影响,在西藏这块广袤无垠的高原环境中孕育了丰富而独具特色的自然景观、地质遗迹景观和人文景观等多种多样的旅游资源,其中西藏南部地区居多而集中,为今天充分开发该地区的旅游资源提供了基础和前提。但西藏地区自然环境恶劣,生态系统极其脆弱,很容易受到破坏,且难以恢复。本文在介绍西藏南部地区旅游资源的基础上,初步提出了开发该地区旅游资源的措施性建议。     

Multiscale Plume Transport from the Collapse of the World Trade Center on September 11, 2001

The collapse of the world trade center (WTC) produced enhanced levels of airborne contaminants in New York City and nearby areas on September 11, 2001 through December, 2001. This catastrophic event revealed the vulnerability of the urban environment, and the inability of many existing air monitoring systems to operate efficiently in a crisis. The contaminants released circulated within the street canyons, but were also lifted above the urban canopy and transported over large distances, reflecting the fact that pollutant transport affects multiple scales, from single buildings through city blocks to mesoscales. In this study, ground-and space-based observations were combined with numerical weather forecast fields to initialize fine-scale numerical simulations. The effort is aimed at reconstructing pollutant dispersion from the WTC in New York City to surrounding areas, to provide means for eventually evaluating its effect on population and environment. Atmospheric dynamics were calculated with the multi-grid Regional Atmospheric Modeling System (RAMS), covering scales from 250 m to 300 km and contaminant transport was studied using the Hybrid Particle and Concentration Transport (HYPACT) model that accepts RAMS meteorological output. The RAMS/HYPACT results were tested against PM2.5 observations from the roofs of public schools in New York City (NYC), Landsat images, and Multi-angle Imaging SpectroRadiometer (MISR) retrievals. Calculations accurately reproduced locations and timing of PM2.5 peak aerosol concentrations, as well as plume directionality. By comparing calculated and observed concentrations, the effective magnitude of the aerosol source was estimated. The simulated pollutant distributions are being used to characterize levels of human exposure and associated environmental health impacts.     

Designing a Conservation Landscape for Tigers in Human-Dominated Environments

Abstract:  Wildlife populations in small, isolated reserves face genetic and demographic threats to their survival. To increase the probability of long-term persistence, biologists promote metapopulation management, in which breeding subpopulations are protected as source pools. Animals that disperse from the source pools increase the probability of persistence of the metapopulation across the greater landscape. We used a geographic information system (GIS)–based, cost-distance model to design a conservation landscape along the Himalayan foothills for managing a metapopulation of Asia's largest predator, the tiger ( Panthera tigris ). The model is based on data from 30 years of field research on tigers, recent satellite imagery, and a decade of buffer-zone restoration in this region. We used the model to (1) identify potential dispersal corridors for tigers; (2) identify strategic transit refuges; and (3) make recommendations for off-reserve land management and restoration to enhance the potential of corridors for tigers. This tool can aid the design of conservation landscapes for other endangered, wide-ranging species in human-dominated environments.     

Building on IUCN Regional Red Lists to Produce Lists of Species of Conservation Priority: a Model with Irish Bees

Abstract:  A World Conservation Union (IUCN) regional red list is an objective assessment of regional extinction risk and is not the same as a list of conservation priority species. Recent research reveals the widespread, but incorrect, assumption that IUCN Red List categories represent a hierarchical list of priorities for conservation action. We developed a simple eight-step priority-setting process and applied it to the conservation of bees in Ireland. Our model is based on the national red list but also considers the global significance of the national population; the conservation status at global, continental, and regional levels; key biological, economic, and societal factors; and is compatible with existing conservation agreements and legislation. Throughout Ireland, almost one-third of the bee fauna is threatened (30 of 100 species), but our methodology resulted in a reduced list of only 17 priority species. We did not use the priority species list to broadly categorize species to the conservation action required; instead, we indicated the individual action required for all threatened, near-threatened, and data-deficient species on the national red list based on the IUCN's conservation-actions template file. Priority species lists will strongly influence prioritization of conservation actions at national levels, but action should not be exclusive to listed species. In addition, all species on this list will not necessarily require immediate action. Our method is transparent, reproducible, and readily applicable to other taxa and regions.     

江西珍稀濒危植物资源与保护

经调查统计，江西分布有国家第一批珍稀濒危保护植物７４种，比《中国珍稀濒危植物》记载本省的种类（４８种）增加了２６种。本文论述了本省珍稀植物濒危的原因和我省自然保护的实际情况，提出了保护、发展和合理利用珍稀濒危植物资源的意见。