喀斯特岩溶地区“草—畜”农业生产模式初探——以古周村为例  

Primary Research “Forage grasses—Livestock” Ecological Product Mode, the Karst Region of Zhougu Villige in Northwest Guangxi

作　　者：宋希娟[1,2] 刘淑娟[2] 寻瑞[2] 王克林[2] SONG Xi-juan;LIU Shu-juan;XUN Rui;WANG Ke-lin(Tongren Collage, Tongren 554300, PRC;Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, PRC)

机构地区：[1]铜仁学院经济与管理学院,贵州铜仁554300 [2]中国科学院亚热带农业生态研究所,湖南长沙410125

出　　处：《湖南农业科学》2017年第6期66-69,共4页Hunan Agricultural Sciences

基　　金：铜仁学院博士科研启动基金项目(trxy DH1603);中国科学院西部行动计划项目(KZCX2-XB3-10)

摘　　要：以喀斯特地区的古周村为例,比较了当地"草—畜"生产模式与传统生产模式固碳能力、土壤水分含量和土壤养分情况,并介绍了古周村养殖业及沼气利用情况。结果表明:桂牧一号人工草地的净初级生产力和碳固定量均高于玉米,呈极显著差异;2种土地利用方式对土壤SOC无显著影响;牧草地TP、TK含量显著低于玉米地,牧草对养分需求远高于玉米;古周村的沼气利用情况说明该地的农业生产模式正初步向"草—畜—沼"循环农业模式转变,但利用方式和效率还有待于进一步改善和提高。Taking the Karst gegion of Guzhou Village in northwest Guangxi as example,the solid carbon capacity,soil moisture contentand soil nutrient status under“forage grasses-livestock”production mode and traditional production mode were compared,and theutilization of aquaculture and biogas were introduced.The results indicated the net primary productivity and carbon fixation of theartificial grassland in Guimu1were significantly higher than that of maize.Two kinds of land-use types have no significant effect on SOC.The content of TP and TK is significantly lower than that in corn field,and grass is much more nutrient demand than maize.The biogasutilization situation of Guzhou Village showed that agricultural production mode is preliminarily change to“grass-livestock-bog”cycleagriculture mode,but utilization type and efficiency have yet to be further enhance efficiency.

关 键 词：古周村 喀斯特 牧草 玉米地 “草-畜”生产模式 

分 类 号：S812.2[农业科学—草业科学]