文献类型：期刊文献

中文题名：华北低山丘陵区石榴-小麦间作系统的土壤呼吸特征——以河南省济源市试验点为例

英文题名：Soil Respiration of Punica granatum -Triticum aestivum Intercropping System in Hilly Area of Northern China

作者：刘文娟[1] 李春友[1] 张劲松[2] 陆森[2] 孟平[2] 贾长荣[3] 任迎丰[3] 张玉珍[1]

第一作者：刘文娟

机构：[1]河北农业大学;[2]中国林业科学研究院林业研究所,国家林业局林木培育重点实验室;[3]国有济源市大沟河林场

年份：2012

卷号：27

期号：3

起止页码：17-22

中文期刊名：西北林学院学报

外文期刊名：Journal of Northwest Forestry University

收录：CSTPCD;;北大核心:【北大核心2011】；CSCD:【CSCD_E2011_2012】；

基金：国家自然科学基金(40871106)

语种：中文

中文关键词：石榴-小麦间作系统;小麦单作系统;土壤呼吸速率

外文关键词：Punica granatum-Triticum aestivum intercropping system; Triticum aestivum monoculture system; soil respiration rate

分类号：S718.516

摘要：在2010年3月至2010年6月,利用Li-8100土壤呼吸自动观测系统,研究了位于河南省济源市的华北低山丘陵区石榴-小麦间作系统(间作系统)和小麦单作系统(单作系统)内土壤呼吸速率(SRR)的时间变化特征及其与土壤温度和湿度的关系。结果表明:(1)间作系统和单作系统的SRR在晴天-多云均表现出明显的时间变化特征,呈单峰变化趋势,在阴天日波动变化幅度较小。SRR在晴天-多云和阴天与土壤温度的变化趋势均基本一致。间作系统的SRR高于单作系统。整个观测时期内间作系统和单作系统的平均SRR分别为1.813μmol.m-2.s-1和1.642μmol.m-2.s-1。(2)间作系统和单作系统SRR与15cm处土壤温度存在显著的指数相关关系,在该深处的Q10值分别为1.73和1.49。(3)间作系统和单作系统与20cm处的土壤体积含水量与SRR的相关关系均不明显。
Soil respiration under the Punica granatum-Triticum aestivum intercropping and T.aestivum monoculture systems were measured by Li-8100 in Jiyuan city of Henan Province during the growing season of March-June 2010.The relationship between the soil respiration and environmental factors were studied.The results showed that SRR in sunny-cloudy days showed a significant diurnal variation at both two systems.The SRR showed a single peak curve for the P.granatum-T.aestivum intercropping and T.aestivum monoculture systems,and the fluctuations at the cloudy day changed little.The change of the SRR on a sunny-cloudy day was consistent with the variation of soil temperature,and the SRR of the P.granatum-T.aestivum intercropping was higher than that in the T.aestivum monoculture system.During the study period,the average SRR was 1.813 μmol·m^-2·s^-1 and 1.642 μmol·m^-2·s^-1 for the P.granatum-T.aestivum intercropping and T.aestivum monoculture system,respectively.The temperature sensitivity of soil respiration（Q10） for the P.granatum-T.aestivum intercropping and T.aestivum monoculture systems were 1.73 and 1.49,repectively.There was no significant relationship between soil respiration and soil water content for the P.granatum-T.aestivum intercropping and T.aestivum monoculture systems in this study.