基于GIS的湖北省水稻生产潜力研究

使用GIS技术,以分县（市,区）为基本单位研究湖北省近年水稻生产状况。综合气象资料、地形数据、水稻作物生长发育规律和适应性气候指标,划分出湖北省水稻适宜性种植区域;根据各县（市、区）区域水稻实际生产数据,分早、中、晚稻划定出水稻生产的高、中和低产区域;测算湖北省水稻光温生产潜力为 17 000~22 000 kg/hm2,光温生产潜力可利用度为3306%~7830%。按照农业气候资源的相似性和农业气候利用一致性原则研究表明：湖北省水稻综合生产潜力为31742万t。该研究结果和建立的数据库为更好地指导和规〖JP2〗划湖北省水稻种植、生产和实施系列高产科技工程项目提供了依据和参考。该研究方法,能够扩展用于粮食作物种植区划和农业区划研究     

Environmental information sharing: a means to support the legitimization of oyster farmers’ stewardship over water quality management in NSW,Australia

Oyster farmers depend on good water quality. Activities upstream from estuaries result in externalities that impact water quality. Over the last 10 years, oyster farmers have been developing estuary‐wide environmental management systems ( EMSs ) to tackle internal (i.e. industry‐related) and external (i.e. catchment) issues in N ew S outh W ales, A ustralia. Drawing on interview‐based research and document analyses, this paper shows that the process of creating an EMS for the oyster industry, as well as the creation of the EMS itself, resulted in legitimizing the industry's stewardship over the natural resource it depends on (water). For the oyster industry, this result was due to a change in the scale on which EMSs have been developed: instead of viewing issues at the individual business level, the systems expanded their viewpoint to the entire catchment, and included every oyster business in the estuary, as well as all other activities in the upper catchment. By providing a means of communicating internal efforts and with the support of local government bodies, EMSs provided a mechanism with which influence over upstream actors and activities could be exerted. We demonstrate this by using the ‘social‐ecological systems’ and ‘ ENCORE ’ frameworks, emphasizing the transitions that allowed for this change of scale to take place.     

基于GIS技术的环境信息系统在我国的发展及展望

介绍了基于GIS的环境信息系统及其在我国的发展过程,并把这个发展过程分为四个阶段:探索阶段、技术成熟阶段、两极分化阶段、市场化阶段;还介绍了两个重要的环境信息系统:中国省级环境信息系统和中国环境监理信息系统。最后,本文展望了中国环境信息系统的发展方向。     

Model-based information fusion investigation on fault isolation of subsea systems considering the interaction among subsystems and sensors

The offshore oil industry has expanded to deep water and Arctic. The harsh operating conditions (e.g., ice and strong wind) and increasing complicated system raise the occurrence likelihood of system faults. This requires timely fault isolation and management in the subsea system. However, the offshore oil industry mainly relies on humans to isolate faults based on alarms. With harsh operating conditions and increasing complicated system, this industry urgently needs research on more efficient fault isolation and cause diagnosis methods. Unfortunately, limited research is conducted on fault isolation method in the offshore oil industry. Furthermore, in industry 4.0 era, large amounts of information are obtained. This provides precondition for the application of information fusion technique which aims to improve diagnosis results. However, to the authors’ knowledge, information fusion has not been much studied in the fault isolation of the offshore oil industry. Moreover, the interaction of different subsystems contains valuable information. How the interaction of different subsystems can influence the fault diagnosis has not been explored. This paper proposes a Bayesian network (BN) based method for timely fault isolation and cause diagnosis for the offshore oil industry. The work fuses different information, and it also includes the dependency among different subsystems in the fault diagnosis. As an important alarm source, false alarms are also taken into account in the model. A case study on the subject of the subsea wellhead and chemical injection systems is conducted to demonstrate the functions and merits of the proposed method.     

新形势下环境监测科技发展现状与展望

随着新时代的全面到来,我国对于生态环境的重视程度也在不断提高,社会民众的环保意识也变得越来越高。在这种大背景下,环境监测科技得到了全面的发展,同时在我国各个地区也开始广泛的应用。本文先阐述了新形势下环境监测科技的发展现状,从信息化技术的深层次应用、形成多元化与多层次的监测技术格局、构成创新化的环境监测技术体系、逐步实现监测人员专业素质水平的提升四个方面,综合全面探讨了新形势下环境监测科技的发展与展望。     

山东省人口重心迁移研究

采用人口重心模型,在GIS技术支持下着重对1989-2005年山东省人口重心迁移特征进行了研究,并在此基础上分析人口重心迁移的主要影响因素。结果显示,山东省人口重心接近几何中心,人口重心自东北向西南方向迁移的趋势明显,其移动轨迹呈现出一定的曲折和波动。山东省人口重心迁移受自然、社会经济和政策等多种因素的影响。     

徐州市地下水资源信息系统的开发与应用

资源信息系统是资源开发和管理的重要工具。本文以徐州市地下水资源开发利用现状为基础,以先进的地理信息系统软件为平台,设计和建立了徐州市地下水资源信息系统,并应用于生产实践中,取得了较好的效果     

地理信息系统在监测综合技术中应用的评述

空间化监测信息的综合加工和快速而形象的反映是环境管理的迫切需求,亦是当前监测综合技术发展的主要特征。监测信息的综合分析是一个复合型的巨大系统,引入地理信息系统,不仅可满足上述需求,而且可作为支持该系统的有力工具。本文重点讨论了监测综合分析中应用地理信息系统的必要性、现状和特点。     

环境管理与环境信息系统

在分析环境信息系统结构与功能的基础上,提出当前如何充分地利用环境信息系统进行环境管理的具体设想。     

基于MapInfo的松嫩盆地水资源开发管理信息系统

以松嫩盆地水资源开发利用现状为基础 ,以GIS软件 (地理信息系统 )MapInfoProfessional作为开发平台 ,设计和建立了松嫩盆地水资源开发管理信息系统。该系统的建立对松嫩盆地水资源开发管理状况和相关信息的查询、检索提供了方便 ,同时对松嫩盆地水资源的合理开发利用及其管理决策提供了科学依据。