干旱地区农业研究
榦旱地區農業研究
간한지구농업연구
AGRICULTURAL RESEARCH IN THE ARID AREAS
2014年
3期
220-224,255
,共6页
古丽克孜·吐拉克%李新国%阿斯耶姆·图尔迪%赖宁
古麗剋孜·吐拉剋%李新國%阿斯耶姆·圖爾迪%賴寧
고려극자·토랍극%리신국%아사야모·도이적%뢰저
土壤盐分%变异系数%土壤盐渍化%主成分分析%开都河流域下游绿洲
土壤鹽分%變異繫數%土壤鹽漬化%主成分分析%開都河流域下遊綠洲
토양염분%변이계수%토양염지화%주성분분석%개도하류역하유록주
soil salinity%variation coefficient%soil salinization%principal component analysis%oasis of the lower reaches of Kaidu River
以开都河流域下游绿洲为研究区,通过野外调查、采样与室内实验分析,采用数值统计方法与主成分分析方法对区域土壤盐分特征进行研究。研究结果表明:(1)0~10 cm土层,土壤盐分含量为0.7348 g · kg-1,10~30 cm土层为0.2070 g·kg-1,30~50 cm土层为0.1852 g·kg-1。随土层深度增加土壤盐分含盐量减少,土壤盐分含盐量的变异系数分别为319%、211%和193%,呈现强变异性。(2)0~10 cm、10~30 cm和30~50 cm土层中,随着土层深度的增加,Cl-、SO42-、Mg2+和K++Na+离子的均值逐渐减少,总体上盐分分布具有较强的表聚性。(3)土壤盐渍化状况的特征因子是Cl-与SO42-。(4)未利用地土壤总盐分均值高于其它土地利用类型,耕地次之,林地的最小,分别为0.4420 g·kg-1、0.0755 g·kg-1和0.0414 g·kg-1。
以開都河流域下遊綠洲為研究區,通過野外調查、採樣與室內實驗分析,採用數值統計方法與主成分分析方法對區域土壤鹽分特徵進行研究。研究結果錶明:(1)0~10 cm土層,土壤鹽分含量為0.7348 g · kg-1,10~30 cm土層為0.2070 g·kg-1,30~50 cm土層為0.1852 g·kg-1。隨土層深度增加土壤鹽分含鹽量減少,土壤鹽分含鹽量的變異繫數分彆為319%、211%和193%,呈現彊變異性。(2)0~10 cm、10~30 cm和30~50 cm土層中,隨著土層深度的增加,Cl-、SO42-、Mg2+和K++Na+離子的均值逐漸減少,總體上鹽分分佈具有較彊的錶聚性。(3)土壤鹽漬化狀況的特徵因子是Cl-與SO42-。(4)未利用地土壤總鹽分均值高于其它土地利用類型,耕地次之,林地的最小,分彆為0.4420 g·kg-1、0.0755 g·kg-1和0.0414 g·kg-1。
이개도하류역하유록주위연구구,통과야외조사、채양여실내실험분석,채용수치통계방법여주성분분석방법대구역토양염분특정진행연구。연구결과표명:(1)0~10 cm토층,토양염분함량위0.7348 g · kg-1,10~30 cm토층위0.2070 g·kg-1,30~50 cm토층위0.1852 g·kg-1。수토층심도증가토양염분함염량감소,토양염분함염량적변이계수분별위319%、211%화193%,정현강변이성。(2)0~10 cm、10~30 cm화30~50 cm토층중,수착토층심도적증가,Cl-、SO42-、Mg2+화K++Na+리자적균치축점감소,총체상염분분포구유교강적표취성。(3)토양염지화상황적특정인자시Cl-여SO42-。(4)미이용지토양총염분균치고우기타토지이용류형,경지차지,임지적최소,분별위0.4420 g·kg-1、0.0755 g·kg-1화0.0414 g·kg-1。
Taking the oasis in the lower reaches of the Kaidu River as the case study area ,through the field investi-gation ,sampling and laboratory experimental analysis ,adopted the application of statistical method and principal compo-nent analysis method to research the characteristics of regional soil salinity .The results showed that :(1 ) In 0~10 cm soil layer ,the soil salinity content was 0 .7348 g·kg-1 ,in 10~30 cm ,the soil salinity was 0 .2070 g·kg-1 ,in 30~50 cm ,the soil salinity was 0 .1852 g·kg-1 .The soil salinity was decreased with the increasing soil depth .The variation coefficient of the soil salinity was 319% ,211% and 193% ,respectively .It was shown strong variability . (2 ) In the soil layer of 0~10 cm ,10~30 cm and 30~50 cm ,with the increasing soil depth ,the average value of Cl - ,SO42- , Mg2+ and K+ +Na+ ions was gradually reduced ,on the whole salt distribution possessed a strong surface accumulation . (3) The characteristic factors of soil salinization were Cl - and SO42- .(4) The average value of total soil salt for unused land ,farmland and forestland was 0 .4420 g·kg-1 ,0 .0755 g·kg-1 and 0 .0414 g·kg-1 ,respectively .The unused land was higher than other land use types ,the farmland was the second and forestland was the minimum .