3种不同土壤结皮类型对黄花补血草种子萌发的影响  

Effects of Three Soil Crust Types on Seed Germination of Limonium aurenu

作　　者：吴昊[1] 李昌龙[1,2] 姜生秀 宋达成[1] 段晓峰 WU Hao;LI Chang-long;JIANG Sheng-xiu;SONG Da-cheng;DUAN Xiao-feng(Gansu Desert Control and Research Institute,Lanzhou Gansu 730070;Minqin Desert Botanical Garden;Gansu Minqin National Field Observation and Research Station on Ecosystem of Desertification Rangeland)

机构地区：[1]甘肃省治沙研究所,甘肃兰州730070 [2]民勤沙生植物园 [3]甘肃民勤荒漠草地生态系统国家野外科学观测研究站

出　　处：《现代农业科技》2020年第5期49-51,53,共4页Modern Agricultural Science and Technology

基　　金：国家自然科学地区基金资助项目(31660124)。

摘　　要：通过模拟干旱荒漠区结皮发育过程中的流动风沙土、物理结皮沙地、生物结皮沙地等3种关键阶段的生境样地,研究不同土壤结皮类型对土壤含水率及黄花补血草种子萌发的影响。结果表明,物理结皮类型下黄花补血草的萌发率最高,达到了69.00%,显著优于对照组的2.83%。不同结皮类型对土壤含水率影响显著,对照风沙土土壤含水率最低,仅为0.02%,物理结皮处理土壤含水率最高,能够达到0.20%。不同结皮类型中以物理结皮处理最有利于黄花补血草种子的生长,平均高度达到3.34 cm,平均冠幅达到100.11 cm^2,显著优于对照风沙土处理。The effects of different types of soil crust on soil moisture content and seed germination of Limonium dahuricum were studied by simulating three key stages of habitat plots,i.e.mobile aeolian soil,physical crust sand and biological crust sand.The results showed that under physical crust type,the germination rate of Limonium dahuricum was the highest(69.00%),which was significantly higher than that of the control group(2.83%).Different crust types had significant influence on soil moisture content.The soil moisture content of the aeolian sand soil control was the lowest,which reached 0.02%.The soil moisture content of physical crust treatment was the highest,which reached 0.20%.The physical skinning was the most beneficial to the growth of the seeds of Limonium dahuricum,with an average height of 3.34 cm and an average crown diameter of 100.11 cm^2,which was significantly better than the aeolian sand soil control.

关 键 词：黄花补血草 土壤结皮 土壤含水率 萌发率 

分 类 号：S567.239[农业科学—中草药栽培]