CAJ | 학술논문

采用时间序列分析方法中的 Kendall 秩相关检验，对潼关水文站1980-2010年的水沙过程及降水量变化趋势进行检验，结果表明年均流量、年均输沙率、多年年均降水量均有明显的减小趋势；通过选取1980年、1990年、2000年、2010年同期。感影像数据以及2005年2月、6月、8月、11月。感影像，在 ENVI 中利用非监督分类方法、最大似然法及人工辅助方法进行。感影像湿地信息专题解译，解译后将专题数据导入 GIS 中进行空间信息处理，分析水沙情势变化对三门峡库区湿地景观格局演变的影响。结果显示：流量和输沙率的减小导致库区湿地水面面积和滩涂面积明显下降，2010年库区水体面积较1980年减小19%，滩涂湿地面积减小37.4%；水库调度对年际库区湿地面积影响不大，对年内湿地景观格局影响显著；水库蓄泄水导致水面面积增减及滩涂面积反向变化。
채용시간서렬분석방법중적 Kendall 질상관검험，대동관수문참1980-2010년적수사과정급강수량변화추세진행검험，결과표명년균류량、년균수사솔、다년년균강수량균유명현적감소추세；통과선취1980년、1990년、2000년、2010년동기。감영상수거이급2005년2월、6월、8월、11월。감영상，재 ENVI 중이용비감독분류방법、최대사연법급인공보조방법진행。감영상습지신식전제해역，해역후장전제수거도입 GIS 중진행공간신식처리，분석수사정세변화대삼문협고구습지경관격국연변적영향。결과현시：류량화수사솔적감소도치고구습지수면면적화탄도면적명현하강，2010년고구수체면적교1980년감소19%，탄도습지면적감소37.4%；수고조도대년제고구습지면적영향불대，대년내습지경관격국영향현저；수고축설수도치수면면적증감급탄도면적반향변화。
Using Kendall rank correlation test of time series analysis methods,this paper analyzed the hydrological processes of water and sediment trend during the period of 1980 - 2010 in Tonngguan Station. The results show that the average annual flow and the average annual sediment trans-port rates have significantly decreased. At the same time,selecting four remote sensing image data of 1980,1990,2000 and 2010 and four images of February,June,August and November of 2005 as reference data,in ENVI using unsupervised classification method,maximum likelihood meth-od and the method of artificial wetland information thematic remote sensing image interpretation and interpreting data into a GIS project to be carried out spatial information extraction,it analyzed the influence to the wetland landscape in water and sediment. The results show that the inter-annual water area of 2010 has been decreased by 19% comparing with that of in 1980,wetlands area has been decreased by 37. 4% ;the reservoir opera-tion has little effect on inter-annual reservoir wetlands area,but has influenced on annual reservoir wetlands significantly;the reservoir storage and draining lead to the increase and decrease of surface area and the reverse change of beach area.