干旱区生态环境知识资源中心(Arid): 干旱区流动沙地建植梭梭(Haloxylon ammodendron)林后细粒物质输入对土壤碳氮积累的影响

Arid

	干旱区流动沙地建植梭梭(Haloxylon ammodendron)林后细粒物质输入对土壤碳氮积累的影响
其他题名	Effects of fine particulate matter input on soil carbon and nitrogen accumulation after establishment of Haloxylon ammodendron plantations on shifting sand dunes in arid area
	安芳娇; 苏永中; 牛子儒; 刘婷娜
来源期刊	中国沙漠
ISSN	1000-694X
出版年	2021
卷号	41 期号:5 页码:147-156
中文摘要	在河西走廊中段临泽荒漠绿洲过渡带选择不同建植时间序列(0、3、6、11、19、28、46 a)的固沙梭梭(Haloxylon ammodendron)林,取冠层下和冠层外表层土样(0-10 cm),研究人工固沙梭梭林生长发育过程中土壤粒级组成和碳氮的变化,分析细粒物质变化对碳氮积累的贡献。结果表明:随着梭梭的生长发育土壤碳氮含量显著增加,无机碳(SIC)是有机碳(SOC)的2.7-11.2倍;黏粉粒和碳酸钙含量与土壤可侵蚀因子(EF)显著负相关,与结皮厚度显著正相关,冠层下结皮厚度是冠层外的1.9-2.6倍;土壤各粒级中SOC、SIC和全氮(TN)含量显著增加,黏粉粒中含量显著高于其他粒级,且对SOC、SIC和TN贡献由0 a的25.4%、8.5%和16.1%增至46 a的59.7%、33.9%和51.9%。干旱区土壤黏粉粒和碳酸钙含量的增加共同促进了土壤物理结皮的形成和发育,进而导致沙面的稳定,同时黏粉粒增加也是土壤碳氮固存的主要机制。
英文摘要	Different ages(0-,3-,6-,11-,19-,28- and 46-years)of Haloxylon ammodendron plantations in Linze desert-oasis ecotone of northwestern China were selected and surface soil(0-10 cm)under and outside the canopy were sampled,to explore the changes of soil particle size and carbon and nitrogen in particle-size fractions during the development of sand-fixing H. ammodendron plantations,and analyze the contribution of soil fine particles to carbon and nitrogen accumulation. The results showed that soil carbon and nitrogen increased significantly with the growth of H. ammodendron,and inorganic carbon(SIC)was 2.7-11.2 times of organic carbon(SOC). The content of soil fine particles and calcium carbonate(CaCO_3)were significantly negatively correlated with soil erodible fraction(EF),and significantly positively correlated with the thickness of soil crust. The thickness of soil crust under the canopy was 1.9-2.6 times that outside canopy. The content of SOC,SIC and total nitrogen(TN)in each particle-size fraction increased significantly,and the content of silt + clay fractions were significantly higher than other fractions. The contribution of silt + clay fractions to SOC,SIC and TN increased from 25.4%,8.5% and 16.1% in year 0 to 59.7%,33.9% and 51.9% in year 46. In arid areas,the increase of silt + clay fractions and CaCO_3 content jointly promoted the formation and development of soil physical crusts,which led to the stability of the sand surface. Meanwhile,the increase of silt + clay fractions were also the main mechanism of soil carbon and nitrogen sequestration.
中文关键词	固沙梭梭(Haloxylon ammodendron)林 ; 固沙年限 ; 颗粒组分 ; 土壤碳氮固存 ; 绿洲边缘
英文关键词	sand-fixing Haloxylon ammodendron plantation sand-fixation year particle-size fractions soil carbon and nitrogen sequestration edge of oasis
类型	Article
语种	中文
收录类别	CSCD
WOS类目	Agriculture
CSCD记录号	CSCD:7060270
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/378103
作者单位	安芳娇, 中国科学院西北生态环境资源研究院;;中国科学院大学, ;;, 兰州;;, 甘肃;;北京 730000;;100049, 中国.; 牛子儒, 中国科学院西北生态环境资源研究院;;中国科学院大学, ;;, 兰州;;, 甘肃;;北京 730000;;100049, 中国.; 苏永中, 中国科学院西北生态环境资源研究院, 兰州, 甘肃 730000, 中国.; 刘婷娜, 中国科学院西北生态环境资源研究院, 兰州, 甘肃 730000, 中国.
推荐引用方式 GB/T 7714	安芳娇,苏永中,牛子儒,等. 干旱区流动沙地建植梭梭(Haloxylon ammodendron)林后细粒物质输入对土壤碳氮积累的影响[J],2021,41(5):147-156.
APA	安芳娇,苏永中,牛子儒,&刘婷娜.(2021).干旱区流动沙地建植梭梭(Haloxylon ammodendron)林后细粒物质输入对土壤碳氮积累的影响.中国沙漠,41(5),147-156.
MLA	安芳娇,et al."干旱区流动沙地建植梭梭(Haloxylon ammodendron)林后细粒物质输入对土壤碳氮积累的影响".中国沙漠 41.5(2021):147-156.