CAJ | 학술논문

本文以砒砂岩地区沙棘生态工程为研究对象，探讨沙棘生态修复工程实施对表层土壤理化性状的改良作用，初步研究结果表明：实施造林工程8年后，沙棘林地表层土壤的总孔隙度比荒坡地提高7.4%，土壤粘粒含量占49.15%，比荒地增加了75%；>5mm的大团粒含量为43.38%，是荒地的2.99倍，有机质含量为13.92g/kg，是荒地的3.68倍；全氮、全磷、全钾的含量分别为荒地的1.72倍、1.13倍与1.36倍，有效氮、速效钾、速效磷含量分别为荒地的4.54倍、3.29倍与7.6倍。说明沙棘造林使造林区的土壤结构得到显著改善，沙棘生态修复工程的生态效益突出，可有效降低该地区降雨对土壤的侵蚀和地表径流的冲刷。
본문이비사암지구사극생태공정위연구대상，탐토사극생태수복공정실시대표층토양이화성상적개량작용，초보연구결과표명：실시조림공정8년후，사극임지표층토양적총공극도비황파지제고7.4%，토양점립함량점49.15%，비황지증가료75%；>5mm적대단립함량위43.38%，시황지적2.99배，유궤질함량위13.92g/kg，시황지적3.68배；전담、전린、전갑적함량분별위황지적1.72배、1.13배여1.36배，유효담、속효갑、속효린함량분별위황지적4.54배、3.29배여7.6배。설명사극조림사조림구적토양결구득도현저개선，사극생태수복공정적생태효익돌출，가유효강저해지구강우대토양적침식화지표경류적충쇄。
This paper, taking the seabuckthorn ecological engineering as the research object, discussed the soil amelioration of physical and chemical properties after the seabuckthorn project in Arsenic sand-stone areas, the results showed that:eight years after the implementation of afforestation project, com-pared with the wasteland, the total porosity ratio shortage of topsoil soil in seabuckthorn forest in-creased 7.4 percent,the clay content accounted for 49.15%,increased 75%; large aggregate (diameter>5mm) content was 43.379%,about 2.99 times of wasteland,the organic matter content was 13.92g/kg, 3.68 times of wasteland;the total nitrogen, phosphorus and potassium content were respectively 1.72, 1.13 and 1.36 times of which in wasteland, the available nitrogen, potassium and phosphorus levels were 4.54, 3.29 and 7.6 times of which in wasteland. These all show that soil structure has been sig-nificantly improved by seabuckthorn afforestation, the ecological benefits of seabuckthorn ecological engi-neering is so effective with the reduction of soil erosion and surface runoff erosion which caused by rainfall.