CAJ | 학술논문

盐渍化会造成土地功能下降，影响生态环境稳定性，评价盐渍化威胁下土地利用的脆弱性成为环境风险评价的重要问题之一。以滨海盐碱区黄骅为例，研究了土地利用变化与盐渍化致灾危险性关系，并构建了各土地利用盐渍化脆弱性曲线。结果表明：①1988-2009年间，主要土地利用类型退化为盐荒地的面积比重分别为建设用地21％、耕地19％和沼泽16％；②盐渍化致灾危险总体上从西南内陆向东北沿海逐渐上升；③根据土地利用盐渍化脆弱性曲线，脆弱性由高到低依次为盐田、耕地、建设用地、水域和沼泽，脆弱性越高，土地越容易发生退化。本研究可以为盐渍化风险评价和土地利用优化模式提供参考。
염지화회조성토지공능하강，영향생태배경은정성，평개염지화위협하토지이용적취약성성위배경풍험평개적중요문제지일。이빈해염감구황화위례，연구료토지이용변화여염지화치재위험성관계，병구건료각토지이용염지화취약성곡선。결과표명：①1988-2009년간，주요토지이용류형퇴화위염황지적면적비중분별위건설용지21％、경지19％화소택16％；②염지화치재위험총체상종서남내륙향동북연해축점상승；③근거토지이용염지화취약성곡선，취약성유고도저의차위염전、경지、건설용지、수역화소택，취약성월고，토지월용역발생퇴화。본연구가이위염지화풍험평개화토지이용우화모식제공삼고。
Salinization can contribute to land function decline and have impact on sustainability of bio-envi-ronment.Land use vulnerability assessment of salinization has been one of the major issues of environment risk as-sessment.This study took Huanghua,a coastal saline region,as a case.The relationship between salinization haz-ard and land use changes is studied,and land-use vulnerability curves are developed.The results show as follows:1 )From 1 988 to 2009,the area proportions of main land use types degraded into saline wasteland are construction land 21 %,cultivated land 1 9% and wetland 1 6%;2)Salinization hazard increases from southwest to northeast and from inner land to coastal land;3)Based on the land-use vulnerability curves of salinization,land-uses ranked in vulnerability from high to low are saltpans,cultivated land,construction land,waterbody and wetland.Land-use with high vulnerability can be easily salinizated.The results can be references to salinization risk assessment and land-use optimize mode decision-making.