【作者】 黄海琴； 陈凯； 余长洪； 陈海波； 李就好；

【Author】 Haiqin Huang1,2 Kai Chen1 Changhong Yu1 Haibo Chen1 Jiuhao Li1 (1.South China Agricultural University,Guangzhou 510642 2.Luoding Polytechnic College,Luoding 527200)

【机构】 华南农业大学水利与土木工程学院； 广东省罗定职业技术学院；

【摘要】 针对雷州半岛甘蔗生长阶段出现季节性干旱的问题,研究了四种不同耕作措施对土壤水分动态变化和降水的保蓄能力影响。结果表明,不同耕作措施对0～40cm土壤贮水量影响较大,在整个试验阶段内免耕覆盖各层土体内土壤贮水量均居于最高水平,免耕覆盖保蓄能力优于其他处理,浅耕在整个试验阶段内在各层土体内处于最低水平。在0～40cm土体内免耕覆盖与浅耕之间差异显著性达到α=0.05水平,深松覆盖和深耕土壤贮水量随时间增加交替变化,深松覆盖保水能力优于深耕,而深耕的蓄水能力优于深松覆盖。更多还原

【Abstract】 Effect of different treatments on dynamics of soil water and maintenance of rainfall was studied considering the seasonal drought during growth stage of sugarcane in Leizhou Peninsula. The results can be summarized as follows: Effect of different treatment on soil water storage greatly influenced within depth of 0-40cm. The soil water maintenance of non-tillage with mulch was superior to other tillage treatments and the soil water maintenance of shallow tillage was the least during the whole experiment stage. The difference of soil water storage within the depth of 0-40cm between non-tillage with mulch and shallow tillage was significant (α =0.05). Soil water storage of deep loosening with mulch and deep tillage alternated with time. The soil water maintenance under deep loosening with mulch was superior to that of deep tillage, but the soil water storage under deep tillage with mulch was superior to that of deep loosening with mulch.更多还原