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Development of comprehensive environmental information processing system for multi-purpose land evaluation

多用途土地评价综合环境信息处理系统开发

基本信息

批准号：
06660077
负责人：
KOSAKI Takashi
金额：
$ 1.28万
依托单位：
KYOTO UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (C)
财政年份：
1994
资助国家：
日本
起止时间：
1994 至 1995
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-06660077/
关键词：
Land Evaluation GIS Soil Information System Fertility Evaluation Global Environmental Problems Rice-based Cropping System Southeast Asia Desertification

项目摘要

Comprehensive environmental information processing system was established. The system consists of pentium-prosessor based personal compute, printer, image scanner, HDD and MO and enable us to exchange any available data on internet. In order to evaluate the function of the system, following two case studies were conducted.1) Preparation of suitability map for rice based cropping system in tropical Asia.Source data such as type and distribution of soils, topography temperature, precipitation, hours of sunshine were obtained on internet from UNEP/GRID of US Geological Survey to be fed for the preparation of suitability map of rice based cropping system.2) Quantitative evaluation of soil fertility and land suitability for rice in East Kalimantan.Thirty-seven soils from upland and lowland were collected from East Kalimantan and analyzed for soil physico-chemical properties. Principal component analysis extracted factors controlling soil fertility, i.e.inherent potentiality, base status, and available phosphorus. Among these three factors, only base status was significantly highly correlated with land suitability degree obtained in FAO framework for land evaluation. The combination of FAO system with fertility evaluation system, inherent potentiality and available phosphorus factors in particular, is expected to provide us with more detail information for land suitability studies.

建立综合环境信息处理系统。该系统由基于奔腾处理器的个人计算机、打印机、图像扫描仪、硬盘和MO组成，使我们能够在互联网上交换任何可用的数据。为了评估该系统的功能，进行了以下两个案例研究：1)热带亚洲水稻种植制度适宜性图的编制。从美国地质调查局的UNEP/GRID网上获取土壤类型和分布、地形温度、降水量、日照时数等原始数据，为编制水稻种植制度适宜性地图提供依据。2)定量评价东加里曼丹地区的土壤肥力和水稻土地适宜性。主成分分析提取了控制土壤肥力的因素，即内在潜力、盐基状况和速效磷。在这三个因素中，只有基本状况与粮农组织土地评价框架中获得的土地适宜度高度相关。粮农组织系统与肥力评价系统，特别是内在潜力和有效磷因素的结合，有望为土地适宜性研究提供更详细的信息。