基于地理信息服务的土壤肥力评价工作流模型实现  

Implementing workflow of the soil fertility evaluation model based on geographic information services

作　　者：任艳[1,2] 陈兰康 陈家赢[1] 张海涛[1] 张钶[1] 

机构地区：[1]华中农业大学资源与环境学院,武汉430070 [2]广西壮族自治区国土测绘院,南宁530000

出　　处：《华中农业大学学报》2015年第4期51-58,共8页Journal of Huazhong Agricultural University

基　　金：国家自然科学基金项目(41101192)

摘　　要：基于桌面的传统肥力评价受到数据更新、运算复杂等影响很难实时获取评价结果。根据工作流技术及开放地理空间信息联盟(Open Geospatial Consortium,OGC)的地理信息服务规范,提出一种在网络环境下实现土壤肥力评价的方法,该方法所有数据获取和处理功能都包装成符合OGC标准的服务,并在工作流平台中通过调用服务相关操作将各操作转换为标准的活动,连接各操作活动来实现自动处理功能。为验证该方法,对湖北省宜都市红花套镇土壤属性进行分析,将该区域土壤数据部署成数据服务,将肥力评价相关操作步骤制作成工作流模型,在工作流模型中调用数据服务来实现网络环境的土壤肥力评价。研究结果表明,通过地理信息服务和工作流技术的结合,能实现网络环境下的肥力评价,同时,该方法提高了肥力评价效率。The traditional desktop-based fertility evaluation was affected by the frequently updated data,the complex operations and so on.The impact was difficult to obtain real-time evaluation results.According to the workflow technology and Open Geospatial Consortium（OGC）specification,a method was proposed to achieve fertility evaluation in the network environment.All data acquisition and processing functions in this method are packaged into OGC-compliant services.By calling the service-related operations,each operation will be converted to comply with OGC standard＇s activities in workflow platform.In this way,it will be able to realize automatic processing function connecting the operation activities.In order to verify the method,the soil data of Honghuatao Town in Yidu City,Hubei Province was used as an example to achieve soil fertility evaluation under the network environment.The example deployed all soil data into data services and procedures related to fertility evaluation into WPS services.The results showed that the combination of the geographical information service with the workflow technology could realize the fertility evaluation under the network environment and improve the efficiency of the fertility evaluation.

关 键 词：开放地理空间信息联盟 地理信息服务 工作流 肥力评价模型 

分 类 号：S143[农业科学—肥料学]