[1]马景永,张玉珍,周波,等.黄土高原不同林龄刺槐林土壤呼吸研究[J].水土保持研究,2015,22(03):98-104,110.
　MA Jingyong,ZHANG Yuzhen,ZHOU Bo,et al.Research on Soil Respiration in Different Ages of Robinia pseudoacacia in the Loess Plateau[J].Research of Soil and Water Conservation,2015,22(03):98-104,110.
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黄土高原不同林龄刺槐林土壤呼吸研究

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 22 期数: 2015年03期 页码: 98-104,110 栏目: 出版日期: 2015-06-28
Title:
Research on Soil Respiration in Different Ages of Robinia pseudoacacia in the Loess Plateau
作者:
马景永1, 张玉珍1, 周波2, 马涛2, 张峰2, 陈爱华2, 高希旺1, 武鹏艳1
1. 甘肃农业大学 林学院, 兰州 730070;
2. 甘肃省水土保持科学研究所, 兰州 730070
Author(s):
MA Jingyong1, ZHANG Yuzhen1, ZHOU Bo2, MA Tao2, ZHANG Feng2, CHEN Aihua2, GAO Xiwang1, WU Pengyan1
1. College of Forestry, Gansu Agricultural University, Lanzhou 730070, China;
2. Institute of Soil and Water Conservation of Gansu, Lanzhou 730070, China
关键词:
土壤呼吸; 动态变化; 影响因子; 不同林龄刺槐林
Keywords:
soil respiration; dynamic variation; influence factor; different ages of Robinia pseudoacacia
分类号:
S714.5
摘要:
采用LI-8100开路式土壤呼吸仪对不同林龄（10，12，13，16 a）刺槐林土壤呼吸速率、温度、水分进行了测定。结果表明：（1）不同林龄刺槐林土壤呼吸速率均呈现明显的日动态和季节动态，表现出夏季 > 秋季 > 冬季；（2）各林龄刺槐林土壤呼吸速率与大气温度、地表温度、5 cm土壤温度均有很好的指数关系，尤其与5 cm土壤温度的相关性最好，且各林龄刺槐林的Q10存在差异，表现为随着林龄的增大，Q10值也随之增大；（3）各林龄刺槐林土壤呼吸速率与土壤体积含水量具有很好的线性关系，且相关性都达到了显著水平（p < 0.05）；（4）各林龄刺槐林土壤呼吸速率与5 cm土壤温度、土壤体积含水量的综合作用也具有很好的相关性，且都达到了极显著水平（p < 0.01），二者共同解释了土壤呼吸变异的93.8%～98.1%，且双因素模型远比单因素能够更好地解释刺槐林土壤呼吸速率的变异。
Abstract:
The soil respiration, temperature and moisture in the different forest ages (10, 12, 13, 16 years) of Robinia pseudoacacia were determined by using the LI-8100 open-type soil respiration apparatus. The results showed that: (1) the soil respiration rates in different forest ages of locust forest showed a significant diurnal and seasonal dynamics, and followed the seasonal sequence of summer > autumn > winter; (2) there is a good exponential relationship between the three temperatures and the soil respiration rates in different forest ages of locust forest, especially there is the best correlation with soil temperature in 5 cm layer and there are differences in Q10 between the different forest ages of locust forest, Q10 was associated with the increase of forest ages; (3) a highly significant linear correlations between the soil respiration rate and the soil volumetric water content in the different forest ages of locust forest were observed(p < 0.05); (4) the comprehensive effect of soil respiration rate and soil temperature in 5 cm depth and soil volumetric water content in the different forest ages of locust forest, has a highly significant linear correlation(p < 0.01) which can explain soil respiration variation of 93.8%~98.1%, and two-factor model explaining locust forest soil respiration rate variability is better than single-factor model.

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备注/Memo

收稿日期:2014-08-10;改回日期:2014-09-07。
基金项目:甘肃省科技支撑计划“黄土丘陵沟壑区坡耕地、梯田土壤呼吸特征研究”（1204FKCA069）；甘肃省水利重点科研计划“陇中坡改梯土壤呼吸特征及水土保持优化技术研究”（2012[255]）
作者简介:马景永(1987-),男,甘肃武威人,硕士研究生,研究方向为水土保持。E-mail:1046455503@qq.com
通讯作者:张玉珍(1963-),女,山西朔州人,副教授,主要从事水土保持研究。E-mail:zhangyz@gsau.edu.cn

更新日期/Last Update: 1900-01-01