干旱区生态环境知识资源中心(Arid): 古尔班通古特沙漠降雨过程中梭梭与白梭梭冠层养分的变化特征

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	古尔班通古特沙漠降雨过程中梭梭与白梭梭冠层养分的变化特征
其他题名	Variation characteristics of canopy nutrients during the rainfall process of Haloxylon ammodendron and Haloxylon persicum in the Gurbantunggut Desert
	岳跃蒙; 李晨华; 徐柱; 唐立松
来源期刊	干旱区研究
ISSN	1001-4675
出版年	2020
卷号	37 期号:5
中文摘要	干旱区养分相对匮乏,雨水流经冠层后有效的养分输入对干旱区植物的生长发育意义重大。本文通过对古尔班通古特沙漠南缘主要建群种梭梭(Haloxylon ammodendron)与白梭梭(Haloxylon persicum)降雨过程中冠层养分的研究,分析树干茎流、穿透雨以及雨水中碳、氮、磷的浓度差异,明确雨水流经植物冠层后各离子的变化特征。结果表明 ,雨水在经过梭梭与白梭梭冠层后总有机碳(TOC)、总氮(TN)浓度增加显著,总磷(TP)增加并不显著。铵态氮(NH_4~+-N)浓度变化与TN基本一致,硝态氮(NO_3~--N)、亚硝态氮(NO_2--N)浓度差异性不完全显著;其中,树干茎流有机氮(TON)的比例最高,在TN中所占比例始终大于50%。对于不同养分输入的平均浓度,除TP、NO_3~--N外,其他离子均有所增加;TP、NO_3~--N、NO_2--N浓度较低,在树干茎流、穿透雨以及雨水中的变异系数较大。
英文摘要	Nutrients are relatively scarce in arid regions, and adequate nutrient input after rainwater flows through the canopy is of great significance to the growth and development of plants in arid regions. Through the study of canopy nutrients during the rainfall process of Haloxylon ammodendron and H.persicum, which were the main dominant species in the southern margin of the Gurbantunggut Desert, the concentration differences of carbon, nitrogen, and phosphorus in stemflow, throughfall, and rainwater were analyzed, and the concentration degree of ions after rainwater flows through the plant canopy was determined. The results showed that the total organic carbon(TOC) and total nitrogen(TN) concentrations of rainwater increased significantly after passing through the canopy of Haloxylon ammodendron and Haloxylon persicum, and the total phosphorus(TP) did not increase significantly. The change of ammonium nitrogen( NH_4~+ -N) concentration is basically consistent with that of TN, and the difference between nitrate-nitrogen( NO_3~- -N) and nitrite-nitrogen( NO_2~- -N) concentrations is not completely significant. Among them, the trunk organic nitrogen(TON) has the highest proportion, and its proportion in TN is always greater than 50%. For the average concentration of different nutrient inputs, in addition to TP and NO_3~- -N, other ions have increased. The concentrations of TP, NO_3~- -N, and NO_2~- -N are lower, and they flow in the stems of stemflow, throughfall, and rain. The coefficient of variation is larger in.
中文关键词	白梭梭(Haloxylon persicum) ; 冠层 ; 离子浓度 ; 古尔班通古特沙漠
英文关键词	梭梭(Haloxylon ammodendron) Haloxylon ammodendron Haloxylon persicum canopy ion concentration Gurbantunggut Desert
类型	Article
语种	中文
收录类别	CSCD
WOS类目	Forestry
CSCD记录号	CSCD:6868861
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/353533
作者单位	岳跃蒙, 中国科学院新疆生态与地理研究所;;中国科学院阜康荒漠生态实验站;;中国科学院大学, 荒漠与绿洲生态国家重点实验室;;中国科学院阜康荒漠生态实验站;;, 乌鲁木齐;;阜康;;, 新疆;;新疆;;北京 830011;;831505;;100049, 中国. 李晨华, 中国科学院新疆生态与地理研究所;;中国科学院阜康荒漠生态实验站, 荒漠与绿洲生态国家重点实验室;;中国科学院阜康荒漠生态实验站, 乌鲁木齐;;阜康, 新疆;;新疆 830011;;831505, 中国. 唐立松, 中国科学院新疆生态与地理研究所;;中国科学院阜康荒漠生态实验站, 荒漠与绿洲生态国家重点实验室;;中国科学院阜康荒漠生态实验站, 乌鲁木齐;;阜康, 新疆;;新疆 830011;;831505, 中国. 徐柱, 新疆天池管理委员会博格达生态环境监测站, 阜康, 新疆 831500, 中国.
推荐引用方式 GB/T 7714	岳跃蒙,李晨华,徐柱,等. 古尔班通古特沙漠降雨过程中梭梭与白梭梭冠层养分的变化特征[J],2020,37(5).
APA	岳跃蒙,李晨华,徐柱,&唐立松.(2020).古尔班通古特沙漠降雨过程中梭梭与白梭梭冠层养分的变化特征.干旱区研究,37(5).
MLA	岳跃蒙,et al."古尔班通古特沙漠降雨过程中梭梭与白梭梭冠层养分的变化特征".干旱区研究 37.5(2020).