红壤丘岗地区不同种植模式下土壤肥力状况的研究  

Status of Soil Fertility under Different Cropping Patterns in Red Hilly Region

作　　者：杨甲华[1,2] 张杨珠[1,2] 高菊生[1,2] 和利钊[1,2] 雷盼[1,2] 黄运湘[1,2] 廖超林[1,2] 

机构地区：[1]湖南农业大学资源环境学院,湖南长沙410128 [2]中国农业科学院红壤实验站,湖南祁阳426182

出　　处：《湖南农业科学》2012年第2期41-45,共5页Hunan Agricultural Sciences

基　　金："十一五"国家科技支撑计划重点项目(2009BADC6B005)

摘　　要：对湘南红壤丘岗区不同种植模式下的土壤进行了野外调查和室内分析,研究了其酸性和交换性以及大、中、微量养分含量状况。结果表明:柑橘套种西瓜(A1)和西瓜单作(C1)两种种植模式下土壤的交换性酸和交换性Al3+要低于其他模式,而CEC、ECEC和盐基饱和度高于其他模式,说明二者的潜性酸也低于其他模式的,保肥能力强于其他模式;柑橘套种西瓜(A1)和西瓜单作(C1)两种种植模式土壤的有机质和大量养分含量高于其他模式;柑橘套种油菜(A4)和西瓜单作(C1)两种种植模式下土壤的绝大部分中微量养分含量高于其他模式的。The soils under different cropping patterns in red hilly regions of southern Hunan Province were investigated in field and analyzed in laboratory, and its acidification, exchangeability and contents of large, medium and micro- nutrient were researched. The results showed that under cropping patterns of A1 （intercropping citrus with watermelon） and C1 （monoculture of watermelon）, the exchangeable acid and exchangeable A13＋ in soil were lower than those under other cropping patterns, while cation exchange capacity （CEC）, effective cation exchange capacity （ECEC） and base saturation were higher than those under other cropping patterns, indicating that potential acid under these two cropping patterns was lower than that under other cropping patterns, and fertilizer preserving capacity was stronger than that under other cropping patterns; the contents of organic matters and majority nutrient in soil under A1 and C1 were higher than those under other cropping patterns; the content of majority medium and micro-nutrient in soil under A4 （intercropping citrus with rape） and C 1 was higher than that under other cropping patterns.

关 键 词：种植模式 交换性酸 CEC 土壤肥力 

分 类 号：S153[农业科学—土壤学]