新疆土壤有机碳与土壤理化性质的相关性

发布时间：2018-05-13 00:40

本文选题：新疆 + 土壤有机碳　；参考：《草业科学》2017年04期

【摘要】：根据全国第2次土壤普查新疆维吾尔自治区的相关土壤资料数据,分析了新疆(0!50cm)土壤有机碳与土壤理化性质的相关性,以期对研究区土壤进行科学管理,从而有助于合理地耕作和科学地施肥,同时也为研究新疆碳循环机制提供丰富而准确的信息。相关性分析表明,研究区土壤全氮、阳离子交换量均与土壤有机碳含量存在着显著的正相关关系(P0.05)。其中,土壤有机碳与全氮的相关性最大(P0.000 1,R2=0.936 7);土壤pH、土壤容重与土壤有机碳含量呈显著负相关关系(P0.05);全磷、全钾、土壤孔隙度与土壤有机碳含量未达到显著相关水平(P0.05)。本研究结果有助于系统、科学地分析干旱区土壤生态系统在全球气候变化中的贡献及生态意义。
[Abstract]:The correlation between soil organic carbon and soil physical and chemical properties in Xinjiang (0! 50cm) was analyzed based on the relevant soil data of the second national soil survey in the Xinjiang Uygur Autonomous Region, so as to make scientific management of the soil in the study area, thus helping to rationally cultivate and scientifically fertilize the soil, and to enrich the carbon cycle mechanism in Xinjiang. The correlation analysis showed that there was a significant positive correlation between soil total nitrogen and cation exchange volume and soil organic carbon content (P0.05). Among them, the correlation between soil organic carbon and total nitrogen was the largest (P0.000 1, R2=0.936 7); soil pH, soil bulk density and soil organic carbon content had a significant negative correlation (P0.05); Total phosphorus, total potassium, soil porosity and soil organic carbon content did not reach significant levels (P0.05). The results of this study are helpful to the systematic and scientific analysis of the contribution and ecological significance of soil ecosystems in the arid region to global climate change.

【作者单位】：伊犁师范学院生物与地理科学学院;新疆大学资源与环境科学学院/绿洲生态教育部重点实验室;中国科学院新疆生态与地理研究所/荒漠与绿洲生态国家重点实验室;河西学院历史文化与旅游学院;
【基金】：伊犁师范学院植物生态学重点学科科研项目(YLUPE201601T)
【分类号】：S153

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