血水草营养元素含量及贮量特征研究  

Nutrient concentration and storage characteristic of Eomecon chionantha Hance

作　　者：刘铭[1] 田大伦[2,3,4] 梁小翠[2,3,4] 闫文德[2,3,4] 宁晨[2,3,4] 

机构地区：[1]湖南师范大学,湖南长沙410081 [2]中南林业科技大学,湖南长沙410004 [3]南方林业生态应用技术国家工程实验室,湖南长沙410004 [4]国家野外科学观测研究站,湖南会同418307

出　　处：《中南林业科技大学学报》2012年第12期167-171,180,共6页Journal of Central South University of Forestry & Technology

基　　金：湖南省科技厅项目(2011NK3049);湖南省教育厅项目(11C0832);湖南师范大学博士基金项目(120506);国家林业局项目([2010]42号)

摘　　要：采用样方法和取样法,对血水草的生物量、土壤营养元素含量、植株各器官营养元素含量及贮量特征进行了研究。结果表明:血水草生物量为1 744.70 g·kg-1,以地下根系生物量最高,占总生物量的73.3%。血水草生长的土壤呈酸性,pH为5.53,有机质含量为52.74 g·kg-1,N 2.67 g·kg-1,P 0.66 g·kg-1,K 5.68 g·kg-1,Ca和Mg分别为1.73 g·kg-1和7.78 g·kg-1。血水草体内有机营养成分中,总糖含量为46.59 g·kg-1,蛋白质为291.17 g·kg-1,脂肪37.74 g·kg-1,纤维素303.58 g·kg-1;矿质营养元素含量中,N 36.08 g·kg-1,P 1.33 g·kg-1,K 29.89 g·kg-1,Ca 15.13 g·kg-1,Mg 7.80 g·kg-1,S 2.88 g·kg-1。营养元素总贮量为106.99 kg·hm-2,其中叶贮量占23.0%、茎占14.0%、根占63.0%。研究结果,可为进一步深入地研究血水草的生态功能,评价血水草的经济、社会和生态效益,科学保护和利用血水草资源,提供科学依据。Through quadrat sampling method, the biomass, nutrient concentration and storage in soil and different organs of Eomecon chionantha Hance were studied. The results show that the biomass of E. chionantha was 1744.70 g·kg^-1, and the root biomass was the highest, which accounted for 73.3%. Soil appeared acid and pH was 5.53. The concentrations of organic matter, nitrogen, phosphorus, potassium, calcium and magnesium were respectively 52.74 g·kg^-1, 2.67 g·kg^-1, 0.66 g·kg^-1, 5.68 g·kg^-1, 1.73 g·kg^-1, 7.78 g·kg^-1. The concentrations of total sugar, protein, fat and cellulose in E. chionantha were 46.59 g·kg^-1, 291.17 g·kg^-1, 37.74 g·kg^-1 and 303.58 g·kg^-1. The concentrations of nitrogen, phosphorus, potassium, calcium, magnesium and sulfur were 36.08 g·kg^-1, 1.33 g·kg^-1, 29.89 g·kg^-1, 15.13 g·kg^-1, 7.80 g·kg^-1 and 2.88 g·kg^-1. Nutrients storage ofE. chionantha was 106.99 kg·hm^2, which leaf, stem and root accounted for 23.0%, 14.0% and 63.0%. The research results provide a scientific reference for deeply researching ecological function, evaluating economic, social and ecological benefits, and protecting and utilizating the resources of E. chionantha.

关 键 词：血水草 生物量 有机营养成分 营养元素 养分贮量 

分 类 号：S727.34[农业科学—林木遗传育种]