[1]牛宋芳,刘秉儒*,张文文,等. 荒漠草原不同土壤类型柠条根际土壤养分与土壤颗粒分布特征研究[J].西北林学院学报,2019,34(1):25-30.[doi:10.3969/j.issn.1001-7461.2019.01.04]
　NIU Song-fang,LIU Bing-ru*,ZHANG Wen-wen,et al. Characteristics of Soil Nutrients and Particle Size Distribution in Rhizosphere of Caragana korshinskii under Different Soil Types[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2019,34(1):25-30.[doi:10.3969/j.issn.1001-7461.2019.01.04]
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 荒漠草原不同土壤类型柠条根际土壤养分与土壤颗粒分布特征研究()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第34卷
期数:
2019年第1期
页码:
25-30
栏目:
出版日期:
2019-01-31

文章信息/Info

Title:
 Characteristics of Soil Nutrients and Particle Size Distribution in Rhizosphere of Caragana korshinskii under Different Soil Types
文章编号:
1001-7461(2019)01-0025-06
作者:
 牛宋芳1; 2; 刘秉儒1; 2*; 张文文1; 2; 潘笑笑1; 2; 祝忠有1; 2
 （1.宁夏大学 西北土地退化与生态恢复国家重点实验室培育基地，宁夏 银川 750021；2.宁夏大学 西北退化生态系统恢复与重建教育部重点实验室，宁夏 银川 750021）
Author(s):
 NIU Song-fang1; 2; LIU Bing-ru1; 2*; ZHANG Wen-wen1; 2; PAN Xiao-xiao1; 2; ZHU Zhong-you1; 2
 (1.Breeding Base for State Key Laboratory of Land Degradation and Ecological Restoration of North-western China,Ningxia University,Yinchuan 750021,Ningxia,China; 2.Key Lab.for Restoration and Reconstruction of Degraded Ecosystem in North-western China of Ministry of Education,Ningxia University,Yinchuan 750021,Ningxia,China)
关键词:
 ; 柠条; 根际; 土壤类型; 土壤养分; 土壤颗粒
Keywords:
Caragana korshinskii;  rhizosphere;  soil type;  soil nutrient;  soil particle size
分类号:
S155.47
DOI:
10.3969/j.issn.1001-7461.2019.01.04
文献标志码:
A
摘要:
 以宁夏盐池县3种典型土壤灰钙土、红黏土和风沙土为对象，研究柠条根际及非根际土壤的养分、颗粒组成及分布特征，并探讨土壤养分与土壤颗粒组成之间的相关性。结果表明，不同土壤类型柠条根际土壤的颗粒组成差异明显，灰钙土中粉粒含量最高为45.95%，红黏土、风沙土依次递减，风沙土中细砂含量最高为61%，红黏土、灰钙土依次递减；土壤pH值在不同土壤类型中差异不显著（P>0.05），红黏土根际中有机碳含量分别比灰钙土和风沙土高1.29、2.12 g·kg-1，灰钙土中全氮含量分别比红黏土、风沙土高0.07、0.19 g·kg-1，差异显著（P<0.05），柠条在不同土壤类型中对土壤养分的富集率不同，风沙土中有机碳、全氮的富集率分别是红黏土的6.82、1.00倍，红黏土中速效磷的富集率分别是灰钙土和风沙土的2.69、10.38倍。土壤有机碳、全氮、全磷、碱解氮与黏、粉粒含量极显著正相关(P<0.01)，与细砂、中砂含量极显著负相关(P<0.01)。由此可见，不同土壤类型影响柠条根际养分的富集率，风沙土中能够富集更多的养分，红黏土对速效养分的富集作用更强，土壤中的粉粒、细砂含量与土壤养分含量的相关性最大。
Abstract:
 In this context,we aimed at studying the difference between rhizosphere and bulk soil nutrient,soil particle distribution and analyzing the difference and relationship among three different soil types,i.e.sierozem,red clay soil and aeolian sandy soil occurring in Yanchi Country of Ningxia.The results showed that no effect on the particle size composition of the rhizosphere soil of Caragana korshinskii among different soil types.The content of silt particles was 45.95%.The red clay and aeolian sandy soil decreased gradually.The content of fine sand in the sandy soil was 61%.The sierozem decreased in turn.Soil pH was no difference among different soil types (P>0.05).The content of organic carbon in the rhizosphere soil of red clay was 1.29 and 2.12 g·kg-1 higher than those in sierozem soil and sandy soil,respectively.The content of total nitrogen in the sierozem soil was 0.07 and 0.19 g·kg-1 higher than those in the red clay and aeolian sandy soil,respectively (P<0.05).C.korshinskii had different enrichment rates of soil nutrients in different soil types.The enrichment rates of organic carbon and total nitrogen in the aeolian sandy soil were 6.82 times and 1 time higher than that of the red clay,respectively.The enrichment rates of available phosphorus in the red clay were 2.69 and 10.38 times higher than those in the argillaceous sierozem soil and the aeolian sandy soil,respectively.The contents of soil organic carbon,total nitrogen,total phosphorus,alkali-hydrolyzed nitrogen,and clay and silt content were significantly and positively correlated (P<0.01),and negatively correlated with the content of fine sand and medium sand (P<0.01).In conclusion,different soil types affect the enrichment ratio of the nutrients in the rhizosphere soil of C.korshinskii.It is possible to accumulate more nutrients in the aeolian sandy soil,and the red clay has a stronger effect on the enrichment of available nutrients.The correlation among silt,fine sand and soil nutrient content is the greatest.

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备注/Memo

备注/Memo:
 收稿日期：2018-01-27修回日期：2018-06-22
基金项目：国家自然科学基金项目（31860158）；自治区科技基础条件建设计划创新平台专项资金项目（2018DPC05021）。
作者简介：牛宋芳，女，硕士，研究方向：生态恢复理论与技术。E-mail:niusongfang@163.com
*通信作者：刘秉儒，男，研究员，研究方向:生态恢复理论与技术。E-mail:bingru.liu@163.com
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