不同土壤水分对核桃树存活率的影响  

Effects of Different Soil Moisture on Survival of Juglans regia

作　　者：程犇[1,2] 达娃 范丽卿 李忠和[4] 李淑芳[4] 王秀飞[4] 孟德臣[5] CHENG Ben;DA Wa;FAN Liqinga＊;LI Zhonghe;LI Shufang;WANG Xiufei;MENG Dechen(Res.Institute of Tibet Plataeu Ecology,Tibet Agricultural and Animal Husbandry University,Nyingchi Tibet,860000 China;Station of Agro-ecology Research on Agropastoral Integration OVyingchi）,Nyingchi Tibet,860000 China;Plant Science Colloge,Tibet Agricultural and Animal Husbandry University,Nyingchi Tibet,860000 China;Jilin Academy of Agricultural Sciences,Changchun,Jilin 130033;Songyuan Academy of Agricultural Sciences,Songyuan Jilin 138000,China)

机构地区：[1]西藏农牧学院高原生态研究所,西藏林芝860000 [2]"农牧一体化"农业生态试验站(林芝),西藏林芝860000 [3]西藏农牧学院植物科学学院,西藏林芝860000 [4]吉林省农业科学院,长春130033 [5]松原市农业科学院,吉林松原138000

出　　处：《高原农业》2018年第2期176-179,219,共5页Journal of Plateau Agriculture

基　　金：西藏特色农牧资源研发协同创新中心高原生态研究平台资助

摘　　要：本实验就林芝地区核桃苗种植后第一年越冬的成活率、高度和直径等指标进行了调查,并对三种水分环境下的越冬核桃苗进行了比较。结果表明人工浇水的实验组越冬成活率和平均高度高于两组不进行人工浇水的对照组,同时有水渠流经的对照组Ⅱ高于仅有自然降水的对照组Ⅰ;而对照组Ⅱ的平均直径最高,人工灌溉的实验组次之,只有自然降水的对照组Ⅰ平均直径最小。这说明林芝地区冬季自然降水不能满足核桃苗越冬所需,于自然降水外增加的额外水分来源有利于核桃苗的存活和生长。In this experiment, the survival rate, height and diameter of the first wintering of walnut seedlings in Nyingchi area were investigated, and the walnut seedlings under three kinds of water environment were compared. The results showed that the survival rate and average height of the artificial watering group were higher than that of the two control groups which did not make artificial watering, and that of the control group with the channel flow of the water channel was higher than that of the control group with only natural precipitation. The average diameter of the control group was the highest, and the experimental group of artificial irrigation was the second. Only the natural precipitation control group had the smallest average diameter. This showed that the winter natural precipitation in Nyingchi can not meet the needs of the walnut seedling overwintering, and the extra water source added to the natural precipitation is beneficial to the survival and growth of the walnut seedlings.

关 键 词：核桃幼苗 栽培 水分管理 

分 类 号：Q948.11[生物学—植物学]