利用遥感技术和地理信息系统动态监测天山草地与农业资源研究

Dynamic Monitoring of Grassland and Agricultural Resources by Means of RS and GIS

利用１９９３～１９９６年在中国新疆天山北坡不同草地类型上观测的牧草与作物产量、环境资料和气象卫星资料，进行了相关分析和草地类型图与产量分级图的制作，建立了ＮＯＡＡ卫片目视判读和计算机自动解译标志等，并使用遥感技术和ＧＩＳ系统结合的方法，对新疆阜康县草地与其它农业资源做了动态监测与分析．结果表明，１９９６年该县的草地与其它农业资源比１９８６年前有较大的变化，其中草地、森林面积比１０年前降低了１７．５％和５１．０％，研究证明该方法可用于草地与农业资源动态监测．该监测方法与结果对实现农牧业科学管理和决策具有重要的参考价值．

The relationship between the observed grassland yield, climatic data and NOAA data was analyzed from 1993 to 1996 in the northern slope of Tianshan mountains. The results showed that there existed an obvious correlation between the yields and environmental factors and various vegetation indices (P<0.05).The maps of grassland types and yield classification were made by these data and ERDAS software in Fukang. The marks of explaining the NOAA satellite films were set up by the sight and computer technology. The dynamic monitoring of grassland and other agricultural resources was achieved by the use of RS and GIS technology in the Fukang county, Xinjiang. It was found that the grassland and other agricultural resources in 1996 changed more greatly than those in 1986 in Fukang. The results also showed that there were greater reductions of grassland and forest areas in 1996 than those in 1986 by 17.5% and 51.0%, respectively, and that the dynamic monitoring of grassland and agricultural resources could be made feasible by using NOAA satellite data and GIS. The dynamic monitoring method and the results could be used for the scientific management of grassland and agricultural resources.