农业机械学报
農業機械學報
농업궤계학보
TRANSACTIONS OF THE CHINESE SOCIETY OF AGRICULTURAL MACHINERY
2010年
1期
63-67
,共5页
王燕%郑健%冀宏%樊新建%张卫勇
王燕%鄭健%冀宏%樊新建%張衛勇
왕연%정건%기굉%번신건%장위용
土壤水扩散率%入渗速率%湿润锋%土壤含水量%混掺物
土壤水擴散率%入滲速率%濕潤鋒%土壤含水量%混摻物
토양수확산솔%입삼속솔%습윤봉%토양함수량%혼참물
Soil water diffusivity%Infiltration rate%Wetting front%Water content of wetted region%Mixing substance
通过室内试验,研究了不同混掺物及不同混掺比例对土壤水分入渗特性及湿润体含水量分布规律的影响.结果表明:指数函数能较好地描述含有混掺物的土壤水扩散率;添加一定比例混掺物的土体能有效延长水分对耕层土壤的湿润,增大水分在耕层的滞留时间;混掺3%玉米叶处理和1%玉米叶处理能够有效提高耕层土壤含水量.
通過室內試驗,研究瞭不同混摻物及不同混摻比例對土壤水分入滲特性及濕潤體含水量分佈規律的影響.結果錶明:指數函數能較好地描述含有混摻物的土壤水擴散率;添加一定比例混摻物的土體能有效延長水分對耕層土壤的濕潤,增大水分在耕層的滯留時間;混摻3%玉米葉處理和1%玉米葉處理能夠有效提高耕層土壤含水量.
통과실내시험,연구료불동혼참물급불동혼참비례대토양수분입삼특성급습윤체함수량분포규률적영향.결과표명:지수함수능교호지묘술함유혼참물적토양수확산솔;첨가일정비례혼참물적토체능유효연장수분대경층토양적습윤,증대수분재경층적체류시간;혼참3%옥미협처리화1%옥미협처리능구유효제고경층토양함수량.
Through laboratory experiments, the soil moisture infiltration characteristics and the distribution rule of soil moisture in wetting front are studied under the condition of different additives and proportions. Results show that the relationship between soil moisture diffusivity and soil water content can be better described by an exponential function. The soil with a certain additive can prolong the time of high moisture in the arable layer. The treatment with 3% and 1% maize leaf can improve soil water content effectively. The results can provide an engineering method for large scale soil improvement.