安徽农业大学学报
安徽農業大學學報
안휘농업대학학보
JOURNAL OF ANHUI AGRICULTURAL UNIVERSITY
2013年
2期
219-224
,共6页
贾瑞琪%刘华*%李宏%李丕军
賈瑞琪%劉華*%李宏%李丕軍
가서기%류화*%리굉%리비군
漫灌%枣树林地%土壤含水量%下渗速率%湿润区间%灌水周期
漫灌%棘樹林地%土壤含水量%下滲速率%濕潤區間%灌水週期
만관%조수임지%토양함수량%하삼속솔%습윤구간%관수주기
flood irrigation%Ziziphus jujuba forest land%soil water content%infiltration rate%moisture inter-val%irrigation cycle
以枣树林中空地为对照,研究漫灌条件下新疆阿克苏地区幼龄枣树林地土壤水分的运移规律,并用EM50测定土壤含水量的变化,以确定不同灌水量下的枣树林地土壤水分的下渗速率、土壤湿润区间、灌溉周期,为枣树的精准灌溉提供科学依据.结果表明:(1)灌水量为80、120和160 m3·亩-1时,枣树林地土壤最大含水量分别为36.8%、38.7%和39.0%,含水量最高的土层分别在-20 cm、-60 cm和-60 cm范围处.(2)在灌溉过程中,土壤水分的运移速率平均为3.74 min·cm-1.(3)随灌水量的增加,幼龄枣树林地土壤湿润区间也在增大,灌水量为80、120和160 m3·亩-1的土壤湿润区间分别为0~-60 cm、0~-80 cm和0~-100 cm.(4)土壤水分湿润区间和灌水量和灌溉时间存在线性函数关系,表达式为Y=0.347 X1+0.364 X2-65.538.(5)灌水量每增加40 m3·亩-1,相应的灌水周期将延长2~4 d.
以棘樹林中空地為對照,研究漫灌條件下新疆阿剋囌地區幼齡棘樹林地土壤水分的運移規律,併用EM50測定土壤含水量的變化,以確定不同灌水量下的棘樹林地土壤水分的下滲速率、土壤濕潤區間、灌溉週期,為棘樹的精準灌溉提供科學依據.結果錶明:(1)灌水量為80、120和160 m3·畝-1時,棘樹林地土壤最大含水量分彆為36.8%、38.7%和39.0%,含水量最高的土層分彆在-20 cm、-60 cm和-60 cm範圍處.(2)在灌溉過程中,土壤水分的運移速率平均為3.74 min·cm-1.(3)隨灌水量的增加,幼齡棘樹林地土壤濕潤區間也在增大,灌水量為80、120和160 m3·畝-1的土壤濕潤區間分彆為0~-60 cm、0~-80 cm和0~-100 cm.(4)土壤水分濕潤區間和灌水量和灌溉時間存在線性函數關繫,錶達式為Y=0.347 X1+0.364 X2-65.538.(5)灌水量每增加40 m3·畝-1,相應的灌水週期將延長2~4 d.
이조수림중공지위대조,연구만관조건하신강아극소지구유령조수임지토양수분적운이규률,병용EM50측정토양함수량적변화,이학정불동관수량하적조수임지토양수분적하삼속솔、토양습윤구간、관개주기,위조수적정준관개제공과학의거.결과표명:(1)관수량위80、120화160 m3·무-1시,조수임지토양최대함수량분별위36.8%、38.7%화39.0%,함수량최고적토층분별재-20 cm、-60 cm화-60 cm범위처.(2)재관개과정중,토양수분적운이속솔평균위3.74 min·cm-1.(3)수관수량적증가,유령조수임지토양습윤구간야재증대,관수량위80、120화160 m3·무-1적토양습윤구간분별위0~-60 cm、0~-80 cm화0~-100 cm.(4)토양수분습윤구간화관수량화관개시간존재선성함수관계,표체식위Y=0.347 X1+0.364 X2-65.538.(5)관수량매증가40 m3·무-1,상응적관수주기장연장2~4 d.
In order to know the characteristics of soil water transportation in young Ziziphus jujuba forest land in Akesu area, south of Xinjiang area under flood irrigation, infiltration rate, moisture interval of soil, and irrigation cycle were measured by EM50 soil temperature and humidity meter . The results were as follows:(1) The maximum soil water content was 36.8%, 38.7%, and 39.0%in-20 cm,-60 cm, and-60 cm soil layers when the quantity of water supply was 80 m3, 120 m3, and 160 m3 per acreage, respectively. (2) During the irrigation, the mean transportation rate of soil water was 3.74 min per cm. (3) The moisture interval of soil was increased with a great quantity of water supply, while it was low with a small quantity of water supply. The moisture interval was 0-60 cm, 0-80 cm, and 0-100 cm when the quantity of water supply was 80 m3, 120 m3, and 160 m3 per acreage, respectively. (4) In the process of irrigation, the relationship among the moisture interval of soil (Y), quantity of water supply(X1), and irrigation time(X2) was fitted for Y=0.347X1+0.364X2﹣65.538. (5) When the quantity of water supply increased 40 m3 per acreage, the irrigation cycle would increase 2-4 d, correspondingly.
