中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 吉林省西部羊草磷含量与土壤磷含量的关系 吉林农业大学学报 2016 (3) 307-312
Position: Home > Articles > Relationship between Soil and Plant Phosphorus Content of Leymus chinensis in Western Jilin Province Journal of Jilin Agricultural University 2016 (3) 307-312

吉林省西部羊草磷含量与土壤磷含量的关系

作  者：
王月娇;李月芬;梁硕;李晴宇
单  位：
吉林大学地球科学学院
关键词：
磷;氮;氮磷比;pH;吉林省西部
摘  要：
吉林省西部土地退化严重,磷元素从1980年的0.067%减少至2001年的0.032%,植物中的磷也不断减少。为阐明土壤中磷含量的降低是否是植物磷减少、氮磷比值偏高的直接原因,选取吉林省西部天然草地为研究对象,通过测定土壤的全磷、有效磷,羊草氮、磷的含量,着重分析土壤磷与植物磷间的关系。结果表明:与世界背景值比较吉林省西部土壤有效磷含量低于世界平均水平,高于国内平均水平,羊草中的磷与土壤有效磷具有同样的背景值特征。pH<8.50、pH≥8.50时土壤全磷含量与植物磷含量、氮磷比值均不相关;pH<8.50时土壤有效磷含量与植物磷含量、氮磷比值显著相关,pH≥8.50时与植物磷含量、氮磷比值均不相关。鉴于此,羊草在适宜生长环境下,土壤有效磷与植物磷相关;羊草在不适宜生长环境下,植物的代谢机制受到pH限制,与土壤有效磷含量不具有相关性。
译  名：
Relationship between Soil and Plant Phosphorus Content of Leymus chinensis in Western Jilin Province
作  者：
WANG Yuejiao;LI Yuefen;LIANG Shuo;LI Qingyu;College of Earth Sciences,Jilin University;
关键词：
P;;N;;N/P;;pH;;western region of Jilin province
摘  要：
In the process of land degradation in western region of Jilin province,P content in soil decreased from 0. 067% in 1980 to 0. 032% in 2001,and P content in plant also decreased dramatically. The study was designed to explore the relationship between decreasing content of soil total P,soil available P and decreasing content of P in plant,and the cause of higher level of N / P. We selected natural grassland in western Jilin as research object to determine soil total N,total P and N /P and to study the relationship between P in soil and P in plant. The results indicate that compared with the background levels of elemental compositions of soil in the world,soil available P content of grassland in western Jilin was lower than world level and higher than national average level and P in Leymus chinensis had the same characteristics with soil available P. Soil total P content had no significant correlation between leaf P content and N / P under the conditions of pH<8. 50 and pH≥8. 50.Soil available P had significant correlation with leaf P content and N / P under the condition of pH<8. 50,while soil available P had no correlation with leaf P content and N / P under the condition of pH≥8. 50. In this view,when plants grow in the appropriate environment( pH<8. 50),soil available P has correlation with leaf P. Plant metabolism limited by p H in high saline-alkali land has no correlation with soil available P.

相似文章

导出引用
计量
文章访问数: 14
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46