[1]王亚军,郁珊珊.西双版纳热带季雨林土壤呼吸变化规律及其影响因素[J].水土保持研究,2016,23(01):133-138,144.
　WANG Yajun,YU Shanshan.Soil Respiration and Impact Factors of Tropical Seasonal Rainforests in Xishuangbanna, Yunnan Province[J].Research of Soil and Water Conservation,2016,23(01):133-138,144.
点击复制

西双版纳热带季雨林土壤呼吸变化规律及其影响因素

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 23 期数: 2016年01期 页码: 133-138,144 栏目: 出版日期: 2016-02-28
Title:
Soil Respiration and Impact Factors of Tropical Seasonal Rainforests in Xishuangbanna, Yunnan Province
作者:
王亚军1, 郁珊珊2
1. 福州大学 建筑学院, 福州 350108;
2. 厦门大学 建筑与土木工程学院, 福建 厦门 361005
Author(s):
WANG Yajun1, YU Shanshan2
1. College of Architecture, Fuzhou University, Fuzhou 350108, China;
2. College of Architecture and Civil Engineering, Xiamen University, Xiamen, Fujian 361005, China
关键词:
西双版纳; 热带季雨林; 土壤呼吸; 影响因子
Keywords:
Xishuangbanna; tropical seasonal rainforests; soil respiration rate; impact factors
分类号:
S714.2
摘要:
为了探寻西双版纳热带季雨林土壤呼吸变化规律及其影响因素，分别于2014年不同季节测定了土壤呼吸强度及相关环境因子，同时取相应点表土（0—10 cm）测定土壤养分，利用指数模型和线性模型分析土壤呼吸与土壤温度和湿度的关系。结果表明：热带季雨林大气温度的日变化趋势均为单峰曲线；落叶季雨林和半常绿季雨林大气湿度日变化均呈“V”字形变化趋势；0—10 cm土壤温度与大气温度变化趋势相一致，在14：00左右达到峰值；土壤湿度均呈“V”字形变化趋势，在14：00达到最低，此后有所回升，局部有所波动。在时间尺度上，2种热带季雨林土壤呼吸均表现为单峰型，且峰值出现的时间基本一致，在14：00左右达到最大，最低值出现在早上6：00，相同时间常绿季雨林土壤呼吸速率高于落叶季雨林。2种热带季雨林土壤呼吸季节性差异显著（p < 0.05），呈先增加后降低的趋势，均表现为秋季 > 夏季 > 冬季 > 春季。2种热带季雨林土壤呼吸与土壤温度之间关系以指数方程拟合最好，土壤温度可以解释土壤呼吸强度的53.7%～71.0%；落叶季雨林土壤呼吸与土壤湿度之间关系以线性方程拟合最好，常绿季雨林土壤呼吸与土壤湿度之间关系以指数方程拟合最好，土壤湿度可以解释土壤呼吸强度的52.1%～62.3%。通过偏相关分析可知，西双版纳热带季雨林土壤呼吸均与有机质和土壤速效养分含量呈极显著的相关关系（p < 0.01），与土壤全氮含量呈显著的相关关系（p < 0.05），而与全磷含量并没有显著的相关性（p > 0.05），其中常绿季雨林的相关系数均高于落叶季雨林。
Abstract:
In order to explore soil respiration and impact factors of tropical seasonal rainforests in Xishuangbanna, measurements of soil respiration, soil temperature and moisture content, soil nutrients (0—10 cm) during different seasons in 2014 by Li-6400, and characteristics of the daily and seasonal variations of soil respiration and their controlling factors were presented, and exponential model and linear model were used to analyze the relations between soil respiration and soil temperature and humidity. The results showed that daily air temperature of tropical seasonal rainforests showed the single peak curve, and daily atmospheric moisture had a V-shape variation trend, soil temperature in 0—10 cm depth had the same variation trend as the atmospheric temperature, which the peak occurred at 14:00, and soil moisture had the V-shape variation trend with local fluctuation. The daily soil respiration rate showed a single peak curve which the daily maximum of soil respiration rate occurred at 14:00 and the minimum occurred at 6:00, and at same time, evergreen monsoon forest soil respiration rate was higher than that in the deciduous monsoon forest. These two tropical seasonal rainforest soil respiration rates had the significant seasonal differences (p < 0.05), which showed the order: autumn > summer > spring > winter. We found that soil respiration was extremely significant correlated with soil temperature in 0—10 cm depth, which could be describled by exponential equation (p < 0.01), the exponential regression model could explain 53.7%～71.0% of the soil respiration, and soil respiration was extremely significant correlated with soil moisture content in 0—10 cm depth, which followed the linear equation (p < 0.01), the exponential regression model could explain 52.1%～52.2% of the soil respiration. Through the partial correlation analysis to exclude other environment factors, we found that soil respiration had the extremely significantly correlation with soil organic matter and soil available nutrients (p < 0.01), had significantly correlation with soil nitrogen content (p < 0.05) and no significantly correlation with soil phosphorus (p > 0.05), of which the correlation coefficients in the evergreen monsoon forest were higher than those in the deciduous monsoon forest.

参考文献/References:

[1] Scharlemann J P W, Tanner E V J, Hiederer R, et al. Global soil carbon:understanding and managing the largest terrestrial carbon pool[J]. Carbon Management,2014,5(1):81-91.
[2] Matías L, Castro J, Zamora R. Effect of simulated climate change on soil respiration in a Mediterranean-type ecosystem:rainfall and habitat type are more important than temperature or the soil carbon pool[J]. Ecosystems,2012,15(2):299-310.
[3] Karhu K, Auffret M D, Dungait J A J, et al. Temperature sensitivity of soil respiration rates enhanced by microbial community response[J]. Nature,2014,513(7516):81-84.
[4] Gomez-Casanovas N, Matamala R, Cook D R, et al. Net ecosystem exchange modifies the relationship between the autotrophic and heterotrophic components of soil respiration with abiotic factors in prairie grasslands[J]. Global Change Biology,2012,18(8):2532-2545.
[5] Tucker C L, Bell J, Pendall E, et al. Does declining carbon-use efficiency explain thermal acclimation of soil respiration with warming[J]. Global Change Biology,2013,19(1):252-263.
[6] Castillo-Monroy A P, Maestre F T, Rey A, et al. Biological soil crust microsites are the main contributor to soil respiration in a semiarid ecosystem[J]. Ecosystems,2011,14(5):835-847.
[7] 骆土寿,陈步峰,李意德,等.海南岛尖峰岭热带山地雨林土壤和凋落物呼吸研究[J].生态学报,2001,21(12):2013-2017.
[8] 沙丽清,郑征,唐建维,等.西双版纳热带季节雨林的土壤呼吸研究[J].中国科学:D辑,2004,34(2):167-174.
[9] De-Nova J A, Medina R, Montero J C, et al. Insights into the historical construction of species-rich Mesoamerican seasonally dry tropical forests:the diversification of Bursera (Burseraceae, Sapindales)[J]. NewPhytologist,2012,193(1):276-287.
[10] Mo X X, Zhu H, Zhang Y J, et al. Traditional forest management has limited impact on plant diversity and composition in a tropical seasonal rainforest in SW China[J]. Biological Conservation,2011,144(6):1832-1840.
[11] 卢华正,沙丽清,王君,等.西双版纳热带季节雨林与橡胶林土壤呼吸的季节变化[J].应用生态学报,2009,20(10):2315-2322.
[12] 鲍士旦.土壤农化分析[M].北京:中国农业出版社,2000.

相似文献/References:

[1]郭宗锋,马友鑫,李红梅,等.流沙河流域土地利用变化研究[J].水土保持研究,2006,13(01):144.
　GUO Zong-feng,MA You-xin,LI Hong-mei,et al.Land Use Change in the Liushahe Watershed[J].Research of Soil and Water Conservation,2006,13(01):144.
[2]郭宗锋,马友鑫,李红梅,等.1959-2000年流沙河流域降水与径流变化研究[J].水土保持研究,2006,13(04):150.
　GUO Zong-feng,MA You-xin,LI Hong-mei,et al.Research on Variation of Precipitation and Runoff in the Liushahe Watershed in 1959～2000[J].Research of Soil and Water Conservation,2006,13(01):150.
[3]张娜,巩在武.西双版纳热带季雨林林冠层CO2浓度特征及其影响因素[J].水土保持研究,2018,25(04):181.
　ZHANG Na,GONG Zaiwu.Characteristic of CO2 Concentration of Canopy and Its Influencing Factors in Tropical Seasonal Rainforest in Xishuangbanna, China[J].Research of Soil and Water Conservation,2018,25(01):181.

备注/Memo

收稿日期:2015-08-03;改回日期:2015-09-11。
作者简介:王亚军(1977-),男,安徽阜阳人,博士,高级工程师,研究方向:风景园林规划与设计、人文景观与生态规划、风景园林工程与设计方法。E-mail:fjwangyajun@163.com
通讯作者:郁珊珊(1981-),女,福建厦门人,博士,研究方向:风景园林规划与设计、城市绿地系统规划。E-mail:yushanhan_81@163.com

更新日期/Last Update: 1900-01-01