CAJ | 학술논문

针对江苏沿海开发尤其是辐射沙脊群海域潜在土地资源开发、利用和保护问题,本文以维护辐射沙脊群宏观地貌情势为前提基础,以滩涂地形为数据源,采用起围高程为指标,分析了不同开发强度下辐射沙脊群潜在土地资源的数量与分布；以低潮特征的多时相遥感影像为数据源,采用滩涂遥感低潮出露重现率这一稳定性间接特征为指标,重点分析了条子泥、高泥、东沙这三个匡围核心区不同稳定性分级的潜在土地资源质量特征与分布；结合围垦规划需求探讨了条子泥等匡围核心区适宜围垦规模特征.结果表明：(1)根据不同起围高程,辐射沙脊群潜在土地资源数量巨大,可达1552~6827 km2,其中沙洲潜在土地资源面积约为480~4141 km2；(2)根据1973-2011年近40年和2005-2014年近10年低潮特征遥感影像的稳定性特征分析,以理论深度基面0 m为界,条子泥、高泥和东沙稳定区优质土地资源面积总量分别为605.65 km2和762.77 km2,稳定等级呈圈层状分布,内部为稳定区,主要分布在沙脊中心滩脊线两侧,其次为基本稳定区,受潮沟活动影响反复冲刷,最外围则为不稳定区,出露较少；(3)条子泥、高泥和东沙三者,最适宜的匡围高程为废黄河口基面0 m,局部区域东沙可降低至理论深度基面0 m以上,适宜匡围规模为612~712 km2.
침대강소연해개발우기시복사사척군해역잠재토지자원개발、이용화보호문제,본문이유호복사사척군굉관지모정세위전제기출,이탄도지형위수거원,채용기위고정위지표,분석료불동개발강도하복사사척군잠재토지자원적수량여분포；이저조특정적다시상요감영상위수거원,채용탄도요감저조출로중현솔저일은정성간접특정위지표,중점분석료조자니、고니、동사저삼개광위핵심구불동은정성분급적잠재토지자원질량특정여분포；결합위은규화수구탐토료조자니등광위핵심구괄의위은규모특정.결과표명：(1)근거불동기위고정,복사사척군잠재토지자원수량거대,가체1552~6827 km2,기중사주잠재토지자원면적약위480~4141 km2；(2)근거1973-2011년근40년화2005-2014년근10년저조특정요감영상적은정성특정분석,이이론심도기면0 m위계,조자니、고니화동사은정구우질토지자원면적총량분별위605.65 km2화762.77 km2,은정등급정권층상분포,내부위은정구,주요분포재사척중심탄척선량측,기차위기본은정구,수조구활동영향반복충쇄,최외위칙위불은정구,출로교소；(3)조자니、고니화동사삼자,최괄의적광위고정위폐황하구기면0 m,국부구역동사가강저지이론심도기면0 m이상,괄의광위규모위612~712 km2.
The development,utilization and protection of the potential land resources of the radial sand ridges are important for the Jiangsu coast.This article based on topographic data of tidal flats,considering geomorphology situation of radial sand ridges,focused on acquiring the amount and distribution of potential land resources under different development intensity with different reclaiming elevation.Using multi-temporal remote sensing images in low tide,stability of potential land resources was analyzed by calculating the outcropping repetition rate of tidal flats. Appropriate scale reclamation and layout of Tiaozini Gaoni Dongsha as the main zone of radial sand ridges was il-lustrated from the land demand and different reclaiming elevation.The results show that:(1 )potentially land resources are huge and the area ranges from 1552 to 6827 km2 ,including 480 to 4141 km2 on sandbars according to different reclaiming elevations;(2)on the basis of stability analysis during 40 years (1973 2011)and 10 years (2005 2014),the areas of Tiaozini and Gaoni above 0 meter (Chart Datum)respectively are 605.65 km2 and 762.77 km2 (the stable area is distributed on the interior of sand ridges,the secondary stable areas around the key stable area and eroded by repeated tidal creeks,and the peripheral area is instability region which is less exposed);and(3)the most appropriate elevation interval for reclaimation is between 0 m of the Old Yellow River Datum and the 0 m of the Chart Datum.In this case,a large space can be conserved for sedimentation promotion.The stable zone above the 0 m (the Old Yellow River Datum)should be the priority in the reclamation planning.