当前位置: 首页 > 文章 > GIS支持下贵州省普安县耕地土壤肥力模糊评价 贵州农业科学 2006,34 (5) 15-17
Position: Home > Articles > Fuzzy Evaluation on the Soil Fertility of Cultivated Land in Pu-an County of Guizhou Based on GIS Guizhou Agricultural Sciences 2006,34 (5) 15-17

GIS支持下贵州省普安县耕地土壤肥力模糊评价

作  者:
周旭;安裕伦
单  位:
贵州师范大学地理与生物科学学院;西华师范大学国土资源学院
关键词:
GIS;土壤肥力;改进层次分析法;模糊评价;普安县;贵州
摘  要:
土壤肥力是影响作物单产的主要因素,也是耕地分级的重要依据。选择海拔、坡度、耕层厚度、pH值、有机质、全氮、速效磷、速效钾8个评价指标,用改进层次分析法确定指标权重,以模糊数学理论为基础,在ArcGIS8.3和ArcView3.3平台上,实现普安县耕地土壤肥力可视化评价,并对土壤肥力空间分布差异进行分析,为土壤培肥、治理、耕地分级和退耕还林(还草)科学决策提供依据。
译  名:
Fuzzy Evaluation on the Soil Fertility of Cultivated Land in Pu-an County of Guizhou Based on GIS
作  者:
ZHOU Xu 1,2,AN Yu-lun 2(1.College of Land Resource,China West Normal University,Nanchong,Sichuan 637002;2.College of Geographic and Biologic Sciences,Guizhou Normal University,Guiyang 550001,China)
关键词:
GIS;soil fertility;improved AHP;fuzzy evaluation,Pu-an county;Guizhou
摘  要:
The soil fertility is the important factor affecting the output of crops and important basis for classification of cultivated land.The video evaluation for soil fertility of cultivated land is realized on the Arc GIS 8.3 and Arc View 3.3 by 8 evaluation index of elevation,slope,cultivated thickness,pH,organic material,total nitrogen,active P and active K,the improved AHP,the fuzzy evaluation mathematical model.The scientific decision for the fertility improvement and management of soil,classification of cultivated land and planting grass by withdrawing from cultivation is made by analyzing the space distribution of soil fertility.

相似文章

计量
文章访问数: 8
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊