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 > 寒地玉米秸秆还田条件下土壤CO_2排放与土壤温度的关系 黑龙江农业科学 2017 (1) 28-33
Position: Home > Articles > Relationship Between CO_2 Emission of Soil and Soil Temperature Under Maize Straw Returning in Cold Region Heilongjiang Agricultural Sciences 2017 (1) 28-33

寒地玉米秸秆还田条件下土壤CO_2排放与土壤温度的关系

作  者：
宋秋来;王峭然;冯延江;王麒;孙羽;曾宪楠;来永才
单  位：
黑龙江省农业科学院耕作栽培研究所;黑龙江省农业科学院博士后科研工作站;黑龙江农垦勘测设计研究院
关键词：
寒地;玉米;秸秆还田;土壤CO_2;土壤温度
摘  要：
为探讨寒地玉米秸秆还田条件下土壤CO_2排放规律,研究不同秸秆还田方式下农田土壤CO_2与耕层土壤温度的关系,采用静态箱法测定了不同秸秆还田方式下寒地黑土区春玉米生长季土壤CO_2排放及土壤温度的变化情况。结果表明:玉米生育期土壤CO_2排放量与土壤温度均呈现明显的季节变化,春季及秋季CO_2排放通量小、土壤温度低,而CO_2排放峰值及土壤温度最高值均出现在夏季,不同土层土壤温度在6月末达到最高值,而排放峰值出现在7月末至8月初;秸秆还田的排放通量显著高于不还田处理。对二者进行指数方程拟合,发现秸秆不还田条件下土壤CO_2排放与土壤温度的相关性要高于秸秆还田处理;在5~25cm耕层范围内,随着土层深度的增加,土壤CO_2排放与土壤温度的相关性逐渐增加,且10、15、20、25cm四个层次的相关性显著高于5cm土层,表明10~25cm土层的土壤温度变化能够更好地表述黑土农田CO_2排放通量的变化趋势。
译  名：
Relationship Between CO_2 Emission of Soil and Soil Temperature Under Maize Straw Returning in Cold Region
作  者：
SONG Qiu-lai;WANG Qiao-ran;FENG Yan-jiang;WANG Qi;SUN Yu;ZENG Xian-nan;LAI Yong-cai;Postdoctoral Programme Heilongjiang Academy of Agricultural Sciences;Cultivation and Crop Tillage Institute of Heilongjiang Academy of Agricultural Sciences;Heilongjiang Agricultural Reclamation Survey Design and Research Institute;
关键词：
cold region;;maize;;straw returning;;soil CO_2;;soil temperature
摘  要：
In order to investigate the CO_2 emission law under maize straw returning in cold region,and the relationship between soil CO_2 emission and soil temperature under different straw returning methods,static box method was used to investigate the change of soil CO_2 emission and soil temperature in spring maize growing season in black soil region under different straw returning ways.The results showed that there was a significant seasonal change in soil CO_2 emission and soil temperature during maize growth,the CO_2 emission fluxes and soil temperature was low in spring and autumn,the peak values of CO_2 emission and soil temperature all appeared in summer.The soil temperature in different soil layers reached the highest at the end of June,and the emission peak appeared at the end of July to the beginning of August.The CO_2 emission of maize straw returning was significantly higher than straw removal.Regression analyses for CO_2 emission fluxes and soil temperature were carried out,and it was found that the correlation between soil CO_2 emission and soil temperature was higher under straw removal than that under straw returning.In 10~25cm soil layer,the correlation between soil CO_2 emission and soil temperature increased with depth increasing,and the correlation between 10,15,20 and 25cm soil layer was significantly higher than 5cm soil layer,which indicated that the change of soil temperature in 10~25cm soil layer could better describe the change trend of CO_2 emission fluxes in black soil field.

相似文章

导出引用
计量
文章访问数: 6
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