应用生态学报2017，Vol.28Issue(5)：1557-1562,6.DOI:10.13287/j.1001-9332.201705.013
青藏高原栽培大麦β-葡聚糖含量空间分布特征及其影响因子
β-glucan content spatial distribution characteristics and its influencing factors of cultivated barley in Qinghai-Tibet Plateau, China
摘要
Abstract
β-glucan content spatial distribution characteristics of cultivated barley in Qinghai-Tibet Plateau were investigated based on the data measured from 83 sampling sites.The results showed that β-glucan content exhibited a macrocosm pattern of spatial distribution along the horizontal direction in Qinghai-Tibet Plateau,with staggered patches of different values.Two regions of higher β-glucan content were observed with centers of Guide and Tongde in Qinghai Province and Xiahe and Hezuo in Gansu Province (northeast),and Jiangzi,Bailang,Xietongmen,Shigatse,Lazi,Kangma,Gongga and Qushui in Tibet (southwest).Along the vertical direction,β-glucan content distribution pattern appeared with double peak curves.There were two high value zones between the altitudes from 2700 m to 3000 m and from 3600 m to 3900 m,with average β-gluean content value of (5.7 ± 1.7) ％ and (4.6± 1.1) ％,respectively.Influencing factors of β-glucan content with importance value index more than 40.0％ were as follows:grain color ＞ ear density ＞ average relative humidity in September ＞ soil available N content ＞ soil available K content ＞ average diurnal temperature range in June ＞ ≥ 10 ℃ accumulated temperature ＞ average annual temperature ＞ soil available P content ＞ average diurnal temperature range in September.关键词
青藏高原/栽培大麦/β-葡聚糖/分布特征Key words
Qinghai-Tibet Plateau/cultivated barley/β-glucan/distribution characteristics引用本文复制引用
王建林,钟志明,冯西博,付刚,余成群,侯维海,王改花,大次卓嘎..青藏高原栽培大麦β-葡聚糖含量空间分布特征及其影响因子[J].应用生态学报,2017,28(5):1557-1562,6.基金项目
本文由国家自然科学基金项目(31360300,31370458,31560362)、西藏自治区重点项目(XZXTCX-2015-03,XZXTCX-2016-3,XZZWCXPT-2015-01)、西藏农牧学院雪域英才工程人才发展支持计划项目(2015XYB01)和西藏农牧学院作物学科建设项目(2015ZWXKJS)资助 This work was supported by the National Natural Science Foundation of China (31360300,31370458,31560362),the Key Project of Tibet Autonomous Region (XZXTCX-2015-03,XZXTCX-2016-3,XZZWCXPT-2015-01,the Talent Development Program of Excellence Engineering in Snow Fields of Tibet Institute of Agriculture and Animal Husbandry (2015XYB01),and the Crop Science Project of Tibet Institute of Agriculture and Animal Husbandry (2015ZWXKJS). （31360300,31370458,31560362）
