浅析泥石流堆积物的光谱特征：以蒋家沟泥石流堆积物为例

运用１００ＢＭＴＳ野外光谱仪探测了小江支流蒋家沟新、老泥石流堆积物的光谱反射率，总结了新、老堆积物的反射光谱特性，分析了曩泥石流堆积物反射光谱特性的因素（岩性、水分含量、植被覆盖），最后讨论了应用高空间分辨率遥感图像解译泥石流堆积物的可能性。     

应用卫星遥感技术调查和评价潮白河密云水库流域的植被

本研究应用卫星遥感技术将区内植被解译成16种类型，编绘了植被分布图，侧重研究和评价了植被蓄水保土的功能，结论是，流域植被生态功能较好，对密云水库水源保护十分有利，提高植被覆盖率的限制因素是水，应从封山育草开始，促进植被次生演替的进行，才能确保密云水库的长久利用。     

矿区生态环境遥感监测数据库系统设计与实现

以肥城矿区为背景,基于Personal Geodatabase模型构建了空间数据库,采用C#作为开发语言,借助ArcGIS Engine的控件开发了矿区生态环境遥感监测数据库系统.根据数据获取方式不同,将空间数据库分为基础地理数据库、专题数据库、实地监测数据库和表格数据库4部分,系统实现了矿区空间数据和属性数据的统一存储和管理,多时相遥感数据的对比分析,水质、土壤湿度的动态监测,矿区各类地物面积的统计分析等功能.     

遥感技术在生态环境监测与管理中的应用

近些年来,卫星及无人机技术在我国生态环境的监测与管理中应用越来越广泛。本文针对遥感技术在水环境、大气环境、土壤环境、土地利用等方面的监测原理及应用现状进行了简要分析,对遥感技术在我国环境管理上的应用进行了简要回顾与展望。     

土壤遥感分类识别专家系统的结构设计

介绍了土壤遥感分类识别专家系统的设计原理与实现方法，阐述了土壤遥感分类识别专家系统的土壤分类决策判断树的构造原理，讨论了土壤遥感分类识别专家知识表示的基本原则和系统知识库中专家知识的组织方式，以及专家系统推理机的设计原理和推理规则的构建方法。系统采用压缩编码方式存储地学专题图形和遥感图像数据，具有数据与图像的存储更新、查询检索、分析处理、特征提取和信息输出等功能。该系统可以对遥感图像进行土壤类型的分类识别，并对分类精度进行监测与评价。用该系统对新疆天山北麓阜康试验区的土壤分类识别进行了试验研究，并对试验结果进行了讨论与评价。     

Remote sensing of the urban heat island and its changes in Xiamen City of SE China

World-wide urbanization has significantly modified the landscape, which has important climatic implications across all scales due to the simultaneous removal of natural land cover and introduction of urban materials. This resulted in a phenomenon known as an urban heat island(UHI). A study on the UHI in Xiamen of China was carried out using remote sensing technology. Satellite thermal infrared images were used to determine surface radiant temperatures. Thermal remote sensing data were obtained from band 6 of two Landsat TM/ETM^ images of 1989 and 2000 to observe the UHI changes over l l-year period. The thermal infrared bands were processed through several image enhancement technologies. This generated two 3-dimension-perspective images of Xiamen‘s urban heat island in 1989 and 2000, respectively, and revealed heat characteristics and spatial distribution features of the UHI. To find out the change of the UHI between 1989 and 2000, the two thermal images were first normalized and scaled to seven grades to reduce seasonal difference and then overlaid to produce a difference image by subtracting corresponding pixels. The difference image showed an evident development of the urban heat island in the 11 years. This change was due largely to the urban expansion with a consequent alteration in the ratio of sensible heat flux to latent heat flux. To quantitatively compare UHI, an index called Urban-Heat-Island Ratio Index(URI) was created. It can reveal the intensity of the UHI within the urban area. The calculation of the index was based on the ratio of UHI area to urban area. The greater the index, the more intense the UHI was. The calculation of the index for the Xiamen City indicated that the ratio of UHI area to urban area in 2000 was less than that in 1989. High temperatures in several areas in 1989 were reduced or just disappeared, such as those in old downtown area and Gulangyu lsland. For the potential mitigation of the UHI in Xiamen, a long-term heat island reduction strategy of planting shade trees and using light-colored, highly reflective roof and paving materials should be included in the plans of the city planers, environmental managers and other decision-makers to improve the overall urban environment in the future.     

卫星遥感技术在环境监测和管理中的应用期望

简介了遥感技术的发展过程和发展趋势，以及这一新技术在海洋、森林、土地资源与城市环境监测等方面的应用，以说明卫星遥感在环境监测与管理中所起的作用。采用先进的卫星遥感技术可以帮助我们突破传统污染监测方法的局限，提高环境保护和污染监控能力，为保护生态环境的平衡、提高环境质量作出贡献。     

生态监测

该文简要阐述了生态监测的基本概念，生态监测基本生态学理论以及开展生态监测的技术支持系统，为日后开展生态监测工作提供基本思路。     

基于遥感技术的环境监测应用研究

本文旨在探讨基于遥感技术的环境监测在现代科学和管理中的关键作用。深入研究遥感技术的基础概念、在环境监测中面临的问题、应用策略以及数据分辨率、传感器技术、时间序列分析等关键主题。通过对这些方面的深入分析,将展示遥感技术如何帮助更好地理解和解决环境问题,从而推动可持续发展和环境保护的目标。     

An analysis on spatial variation of urban human thermal comfort in Hangzhou, China

Urban human thermal comfort (UHTC) is affected for interacting of weather condition and underlying surface framework of urban area. Urban underlying surface temperature value and Normalized Difference Vegetation Index(NDVI) were calculated using image interpreting and supervised classification technique by ERDAS IMAGE software using 1991 and 1999 Landsat TM images data. Reference to the relational standard of assessing human thermal comfort and other meteorology data of Hangzhou City in summer, air temperature and relative humidity variation of different land types of underlying surface were inversed. By choosing discomfort index as an indictor, the spatial distribution characteristic and the spatial variation degree of UHTC were estimated and mapped on a middle scale, that is, in six districts of Hangzhou. The main characteristics of UHTC spatial variation from 1991 to 1999 were revealed using a GIS-based calculation model. The variation mechanism were analyzed and discussed from the viewooint of citv olannino, construction and environmental orotection.