CAJ | 학술논문

2000年，焉耆盆地内平均地下水位埋深4．98 m ，耕地面积1656．26 km2，高效节水灌溉面积1．61 km2；盆地内灌溉农业经过11年由常规灌溉向高效节水灌溉的转型发展，到2011年，平均地下水位埋深下降至6．86 m ，耕地面积增加至2426．73 km2，高效节水灌溉面积增加至844．55 km2。针对这一问题，基于大量实测资料和RS及M apGis技术与相关分析方法，通过近10年来区内耕地面积和灌溉方式变化特征对地下水位下降响应机制研究。结果表明：2000年以来常规灌溉耕地面积每增加100 km2或高效节水灌溉面积每增加100 km2，研究区地下水位下降幅度为0．15和0．25 m。
2000년，언기분지내평균지하수위매심4．98 m ，경지면적1656．26 km2，고효절수관개면적1．61 km2；분지내관개농업경과11년유상규관개향고효절수관개적전형발전，도2011년，평균지하수위매심하강지6．86 m ，경지면적증가지2426．73 km2，고효절수관개면적증가지844．55 km2。침대저일문제，기우대량실측자료화RS급M apGis기술여상관분석방법，통과근10년래구내경지면적화관개방식변화특정대지하수위하강향응궤제연구。결과표명：2000년이래상규관개경지면적매증가100 km2혹고효절수관개면적매증가100 km2，연구구지하수위하강폭도위0．15화0．25 m。
In 2000 ,the Yanqi basin average groundwater level depth was 4 .98 m ,the cultivated land area was 1 656 .26 km2 and effi‐cient water-saving irrigation area ,was 1 .61 km2 .After 11 years'transform development from conventional irrigation to efficient wa‐ter-saving irrigation ,in 2011 ,the average groundwater level depth declined to 6 .86 m ,the cultivated land area increased to 2 426 .73 km2 and efficient water-saving irrigation area increased to 844 .55 km2 .The variations and response mechanisms of underground wa‐ter levels decline ,agricultural acreage and irrigation method changes were studied .A large amount of observational data collected in the past 10 years was analyzed by using statistical methods and the RS&MapGis technology .Results show that :since 2000 the com‐mon irrigation agricultural land or the efficient water-saving irrigation land increase by 100 km2 ,and the basin's underground water levels would decrease by 0 .15 m or 0 .25 m .