摘要
采用结构化的系统设计方法，以ＰＣ－ＡＲＣ／ＩＮＦＯ或Ｓｐａｃｅｍａｎ为工具软件，在微机上设计和建立了南丰县水土保持信息系统。应用系统中开发的应用模型，进行了南丰县水土流失的因子分析，得出影响水土流失的因素有地面坡度、地表覆盖率、土壤砂砾含量、土壤抗冲性和土层厚度；然后应用系统中的叠加分类模型、层次分析模型和综合评价模型，进行了南丰县水土流失的综合评价与分区，将南丰按水土流失轻重分为５个区，为水土保持提供科学依据。
By using the system SD design method, microcomputer soil and water conservation information system was designed and established on tool software of PC-ARC/INFO or Spaceman. By using developed analystic models in the system, factors influencing soil and water loss was analysed and it was known that the factors are slope, rate of land cover, soil content of sand and gravel, soil erosion resistance index and soil depth. Then by using overlay model, AHP model and comprehensive evaluation model, soil and water loss in Nanfeng county was evaluated and regionalized into 5 regions comprehensively regarding as the scientific basis for soil and water conservation.
出处
《江西农业大学学报》
CAS
CSCD
1999年第2期233-236,共4页
Acta Agriculturae Universitatis Jiangxiensis
基金
国家自然科学基金
关键词
水土保持
信息系统
设计
综合评价
soil and water conservation
information system
design
comprehensive evaluation
