Carbon balance in a cool–temperate deciduous forest in northern Japan: seasonal and interannual variations, and environmental controls of its annual balance
Carbon balance in a cool–temperate deciduous forest in northern Japan: seasonal and interannual variations, and environmental controls of its annual balance
复制标题
日本北部冷温带落叶林的碳平衡：季节和年际变化及其年度平衡的环境控制
DOI：
10.1007/s10310-011-0298-x
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发表时间：
2012
影响因子：
1.5
通讯作者：
Takeshi Morisawa
中科院分区：
文献类型：
--
作者：
Y. Yasuda;T. Saito;D. Hoshino;K. Ono;Y. Ohtani;Y. Mizoguchi;Takeshi Morisawa
基于7年涡动相关测量，监测了寒温带落叶阔叶林（日本山毛榉林）四季和年净生态系统生产（NEP）、总初级生产（GPP）和生态系统呼吸（RE）的变化。年NEP、GPP和RE的7年平均值（±SD）分别为312±64、1250±62和938±36 g C m−2 year−1。NEP的变化幅度远大于GPP和RE的变化幅度。在生长季，控制碳平衡的主要因子是气温；季节综合NEP的变化受累积气温（度-日）的调节，呈显著负相关，而RE / GPP的季节比值与累积气温呈显著正相关。由于季节NEP的偏差也与季节RE/GPP显著相关，NEP受RE/GPP控制，取决于生长季节的气温。落叶季和雪季的季节RE对年碳平衡的评价也很重要，因为这两个季节的总日数很大，因为冬季降雪时间长。在落叶季和雪季，我们发现落叶季长度是决定季节综合RE的主要因素，说明落叶季长度与RE呈正相关。讨论了控制森林碳平衡年际变化的主要因素。
We monitored variation in seasonal and annual net ecosystem production (NEP), gross primary production (GPP), and ecosystem respiration (RE) based on 7-year eddy covariance measurements above a cool–temperate deciduous broad-leaved forest (Japanese beech forest). The 7-year means (±SD) of annual NEP, GPP, and RE were 312 ± 64, 1250 ± 62, and 938 ± 36 g C m−2 year−1, respectively. Variation in NEP was much larger than variation in GPP and RE. During the growing season, the main factor controlling carbon balance was air temperature; variation in seasonal integrated NEP was regulated by accumulated air temperature (degree-day) with a significant negative correlation, whereas the seasonal ratio of RE to GPP was correlated positively with accumulated air temperature. Because the deviation of seasonal NEP was also significantly correlated with seasonal RE/GPP, NEP was controlled by RE/GPP, depending on air temperature during the growing season. Seasonal RE in the defoliation and snow seasons was also important for evaluating the annual carbon balance, because the total number of days in the two seasons was quite large owing to a long snowy winter. In the defoliation and snow seasons, we found defoliation season length was a major factor determining seasonal integrated RE, illustrating the positive correlation between RE and defoliation season length. The major factors controlling interannual variations in forest carbon balance are discussed.
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影响因子：
5.2
作者：
K. Takagi;M. Nomura;Daitaro Ashiya;Hiroyuki Takahashi;K. Sasa;Y. Fujinuma;H. Shibata;Yukio Akibayashi-Yukio
通讯作者：
K. Takagi;M. Nomura;Daitaro Ashiya;Hiroyuki Takahashi;K. Sasa;Y. Fujinuma;H. Shibata;Yukio Akibayashi-Yukio
DOI：
--
发表时间：
2005
期刊：
--
影响因子：
--
作者：
Y. Ohtani;N. Saigusa;S. Yamamoto;Y. Mizoguchi;Tsutomu Watanabe;Y. Yasuda;S. Murayama
通讯作者：
Y. Ohtani;N. Saigusa;S. Yamamoto;Y. Mizoguchi;Tsutomu Watanabe;Y. Yasuda;S. Murayama
影响因子：
6.2
作者：
N. Saigusa;S. Yamamoto;S. Murayama;H. Kondo
通讯作者：
N. Saigusa;S. Yamamoto;S. Murayama;H. Kondo
影响因子：
11.6
作者：
Kato, Tomomichi;Tang, Yanhong
通讯作者：
Tang, Yanhong
由于日本较冷地区的全球变暖，森林土壤表面的二氧化碳通量增加的潜力很大
DOI：
--
发表时间：
2006
期刊：
Annals of Forest Science 63
影响因子：
--
作者：
Ishizuka;S.
通讯作者：
S.