甘肃农业大学学报
甘肅農業大學學報
감숙농업대학학보
JOURNAL OF GANSU AGRICULTURAL UNIVERSITY
2014年
2期
112-115,119
,共5页
陈亚伟%冯永忠%郭思岩%缐国敏
陳亞偉%馮永忠%郭思巖%缐國敏
진아위%풍영충%곽사암%선국민
废弃窑洞%复垦%土地利用%土壤物理性质%黄土高原
廢棄窯洞%複墾%土地利用%土壤物理性質%黃土高原
폐기요동%복은%토지이용%토양물이성질%황토고원
discarded cave%reclamation%land utilization%soil physical property%Loess Plateau
为了评价不同利用类型废弃窑洞复垦的适宜性,在甘肃省西峰区随机选取胡同式和靠崖式废弃窑洞样点6个,布设剖面15个,采集土样150个,以研究不同窑洞利用方式对土壤物理性质的影响。结果表明:不同窑洞利用方式对土壤质地没有明显的影响,但对土壤容重具有显著影响。土壤容重在窑洞利用过程中均显著增加,增加的幅度随土壤深度的增加而降低。两种废弃窑洞的土壤水分分布规律相似,均呈随土壤深度的增加而降低的趋势;但在土壤表层(小于20 cm)的范围内,废弃窑洞的土壤水分含量明显高于对照;20 cm 以下的土层,废弃窑洞的土壤水分含量明显低于对照。建议废弃窑洞在土地复垦过程中,应采用恢复土壤结构、改变土壤孔隙性等有利于土壤利用天然降水的农艺措施。
為瞭評價不同利用類型廢棄窯洞複墾的適宜性,在甘肅省西峰區隨機選取鬍同式和靠崖式廢棄窯洞樣點6箇,佈設剖麵15箇,採集土樣150箇,以研究不同窯洞利用方式對土壤物理性質的影響。結果錶明:不同窯洞利用方式對土壤質地沒有明顯的影響,但對土壤容重具有顯著影響。土壤容重在窯洞利用過程中均顯著增加,增加的幅度隨土壤深度的增加而降低。兩種廢棄窯洞的土壤水分分佈規律相似,均呈隨土壤深度的增加而降低的趨勢;但在土壤錶層(小于20 cm)的範圍內,廢棄窯洞的土壤水分含量明顯高于對照;20 cm 以下的土層,廢棄窯洞的土壤水分含量明顯低于對照。建議廢棄窯洞在土地複墾過程中,應採用恢複土壤結構、改變土壤孔隙性等有利于土壤利用天然降水的農藝措施。
위료평개불동이용류형폐기요동복은적괄의성,재감숙성서봉구수궤선취호동식화고애식폐기요동양점6개,포설부면15개,채집토양150개,이연구불동요동이용방식대토양물이성질적영향。결과표명:불동요동이용방식대토양질지몰유명현적영향,단대토양용중구유현저영향。토양용중재요동이용과정중균현저증가,증가적폭도수토양심도적증가이강저。량충폐기요동적토양수분분포규률상사,균정수토양심도적증가이강저적추세;단재토양표층(소우20 cm)적범위내,폐기요동적토양수분함량명현고우대조;20 cm 이하적토층,폐기요동적토양수분함량명현저우대조。건의폐기요동재토지복은과정중,응채용회복토양결구、개변토양공극성등유리우토양이용천연강수적농예조시。
In order to evaluate the reclamation suitablity and the soil physical property of different dis-carded caves,the 6 discarded alley and hillside caves,which included 15 soil profiles and 150 soil samples, were chosed by random selection .The results showed that the using type of caves had no significant effects on the soil texture,but had significant effects on the soil bulk density.The soil bulk density were signifi-cantly raised during the caves using,and the rising degree were reduced along with the depth of the soil. The distribution of the caves soil water were similar with the natural soil,but in the surface layer,the soil water of caves were higher than the same layer of natural soil,while under the surface layer,the soil water of caves were lower than the same layer of natural soil.It was suggested that agricultural measures should be used to improve soil constructure and porocity in the reclamation.