CAJ | 학술논문

黑土区沟状侵蚀分布广泛，已经严重损毁农田并影响商品粮基地的大型机械化生产作业。在GIS和RS技术支持下，结合地形地貌数据、野外侵蚀沟调查数据，运用GIS的空间分析功能，研究和讨论了黑龙江省引龙河农场侵蚀沟数量、毁地面积、分布规律、以及受自然因素和人为干扰主要影响因子的关系。研究表明：在研究区农地内，单位面积内的侵蚀沟数量、沟壑密度和毁地面积均随着坡度的增大而增多，沟壑密度和毁地面积在分别到达峰值0.19 km· km-2和0.09 hm2· km-2后开始下降；阴坡的沟蚀大于阳坡；自1985年，耕地面积增加达6000 hm2，增加了26.9％，均来自于草地和林地开垦，分别为3200 hm2和2700 hm2，占1985年草地总面积和林地总面积的20％以上。在不同土地利用类型转化为耕地的过程中，草地开垦更易发生土壤侵蚀形成侵蚀沟。图4，表2，参14。
흑토구구상침식분포엄범，이경엄중손훼농전병영향상품량기지적대형궤계화생산작업。재GIS화RS기술지지하，결합지형지모수거、야외침식구조사수거，운용GIS적공간분석공능，연구화토론료흑룡강성인룡하농장침식구수량、훼지면적、분포규률、이급수자연인소화인위간우주요영향인자적관계。연구표명：재연구구농지내，단위면적내적침식구수량、구학밀도화훼지면적균수착파도적증대이증다，구학밀도화훼지면적재분별도체봉치0.19 km· km-2화0.09 hm2· km-2후개시하강；음파적구식대우양파；자1985년，경지면적증가체6000 hm2，증가료26.9％，균래자우초지화임지개은，분별위3200 hm2화2700 hm2，점1985년초지총면적화임지총면적적20％이상。재불동토지이용류형전화위경지적과정중，초지개은경역발생토양침식형성침식구。도4，표2，삼14。
Farmland has been seriously destroyed and restricted machines traffic by gully erosion in the black soil regions in Northeast China.The amounts,densities,area destroyed,their distributions and their driving factors of the gullies formed in the farmland in Yin-longhe State Farm of Heilongjiang province were studied by GIS and RS technologies combined with topography data and field sur -vey.The results showed the amounts ,densities and area destroyed of gullies in farmland increased with slope steepness.The densities and area destroyed of gullies decreased when they reached 0.19 km· km-2 and 936.5 m2· km-2 , respectively.The gullies located in the shady side were much more than those in the other side.The area of farmland increased 6 000 hm2 from the year of 1985 to 2010 , 3 200 hm2 from grassland, and other 2 700 hm2 from forest land, about 20 percent of the total area of grassland and forest land.Compared the gullies in the farmland from grassland to forestry , more gullies were found in the former.