[1]罗伶书,杜盛*. 降雨梯度对林地土壤呼吸温度敏感性影响研究进展[J].西北林学院学报,2023,38(2):76-83.[doi:10.3969/j.issn.1001-7461.2023.02.10]
　LUO Ling-shu,DU Sheng*. Research Progress on the Effects of Rainfall Gradient on the Temperature Sensitivity of Soil Respiration in Woodland[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2023,38(2):76-83.[doi:10.3969/j.issn.1001-7461.2023.02.10]
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 降雨梯度对林地土壤呼吸温度敏感性影响研究进展()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第38卷
期数:
2023年第2期
页码:
76-83
栏目:
出版日期:
2023-03-31

文章信息/Info

Title:
 Research Progress on the Effects of Rainfall Gradient on the Temperature Sensitivity of Soil Respiration in Woodland
文章编号:
1001-7461(2023)02-0076-08
作者:
 罗伶书1; 2; 杜盛2; 3*
 （1.西北农林科技大学 林学院，陕西 杨陵 712100；2.西北农林科技大学 黄土高原土壤侵蚀与旱地农业国家重点实验室，陕西 杨陵 712100；3.中国科学院水利部水土保持研究所，陕西 杨陵 712100）
Author(s):
 LUO Ling-shu1; 2; DU Sheng2; 3*
 (1.College of Forestry,Northwest A&F University,Yangling 712100,Shaanxi,China; 2.State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau,Northwest A&F University,Yangling 712100,Shaanxi,China; 3.Institute of Soil and Water Conservation,Chinese Academy of Sciences and Ministry of Water Resources,Yangling 712100,Shaanxi,China)
关键词:
 ; 降雨梯度; 土壤呼吸温度敏感性; 降雨格局; 影响因素; 碳排放
Keywords:
 ; rainfall gradient;  temperature sensitivity of soil respiration;  rainfall pattern;  influencing factor;  carbon emission
分类号:
S714.5
DOI:
10.3969/j.issn.1001-7461.2023.02.10
文献标志码:
A
摘要:
 在全球气候变化背景下，降雨格局改变导致生态系统碳循环发生变化，土壤呼吸温度敏感性（Q10）是土壤呼吸机理研究和碳排放模型构建与预测的重要内容，探究降雨梯度下林地土壤呼吸温度敏感性的影响因素具有重要意义。以我国生态气候区作为降雨梯度表征，基于公开发表的文献资料，重点总结以我国干旱、半干旱和半湿润3个气候区确定的降雨梯度下，林地土壤呼吸温度敏感性影响的研究进展和作用机理。结果表明，降雨梯度下降雨格局改变会对土壤水热状况、土壤底物、土壤微生物群落及其酶活性等产生影响，土壤水分、土壤温度、土壤有机质、土壤微生物及酶活性和林地植被类型都会影响土壤呼吸强度，导致土壤呼吸温度敏感性发生变化；降雨梯度下，各因素对土壤呼吸温度敏感性影响程度不同，且各因素相互作用，导致林地土壤呼吸温度敏感性存在不确定性。针对目前林地土壤呼吸温度敏感性研究所存在的问题，建议今后应进一步统一土壤呼吸测定标准，通过长期野外实验结合室内模型推演增加试验结果的准确性，扩大研究范围，准确估算未来气候变化条件下林地的土壤呼吸温度敏感性。
Abstract:
 Under the background of global climate change,the change of rainfall pattern leads to the change of forest ecosystem carbon cycle.Soil respiration temperature sensitivity (Q10) is an important content of soil respiration mechanism research and carbon emission model construction and prediction.It is of great significance to explore the influencing factors of forest soil respiration temperature sensitivity under rainfall gradient.Based on the published literatures,this study identified the semi humid,semi-arid and arid climate regions as three rainfall gradients,and each rainfall gradient represents the rainfall range divided by the climate region.It summarized the research progress and action mechanism of the influencing factors of soil respiration temperature sensitivity of forest land in China under the rainfall gradient.Research progress shows that the change of rainfall pattern under rainfall gradient will have an impact on soil moisture and heat status,soil substrate,soil microbial community and its enzyme activity,while soil moisture,soil temperature,soil organic matter,soil microorganisms and enzyme activity and forest vegetation type will affect soil respiration intensity,resulting in the change of soil respiration temperature sensitivity,and under rainfall gradient.The influence of various factors on the sensitivity of soil respiration temperature is different,and the interaction of various factors leads to the uncertainty of Q10 in woodlands.In view of the problems existing in the current research on soil respiration temperature sensitivity of forest land,it is suggested that the measurement standard of soil respiration should be further unified in the future,the accuracy of the experimental results should be increased through long-term field experiments combined with indoor model deduction,and the research scope should be expanded to accurately estimate the soil respiration temperature sensitivity of forest land under the condition of future climate change.

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备注/Memo

备注/Memo:
 收稿日期：2022-02-05修回日期：2022-07-19
基金项目：国家重点研发计划项目(2017YFC0504601)。
第一作者：罗伶书。研究方向：黄土高原植被恢复与水土保持。E-mail:2358567014@qq.com
*通信作者：杜盛，博士生导师，研究员。研究方向：树木生理生态、植被恢复以及森林生态系统。E-mail:shengdu@ms.iswc.ac.cn
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