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收稿日期：２０１５• ０９• ３０； 网络出版日期：２０１６• ０８• ０２ * 通讯作者 Ｃｏｒｒｅｓｐｏｎｄｉｎｇ ａｕｔｈｏｒ．Ｅ•ｍａｉｌ： ｃｓｆｕｙｗｄ＠ ｈｏｔｍａｉｌ．ｃｏｍ ＤＯＩ： １０．５８４６ ／ ｓｔｘｂ２０１５０９３０１９９２ 曹福明，闫文德，田大伦，邓湘雯，陈建华．桃江县毛竹林生态系统碳储量及其空间分布．生态学报，２０１７，３７(６) ：２００５• ２０１３． Ｃａｏ Ｆ Ｍ， Ｙａｎ Ｗ Ｄ， Ｔｉａｎ Ｄ Ｌ， Ｄｅｎｇ Ｘ Ｗ， Ｃｈｅｎ Ｊ Ｈ．Ｄｉｓｔｒｉｂｕｔｉｏｎ ｏｆ ｂｉｏｍａｓｓ ａｎｄ ｃａｒｂｏｎ ｓｔｏｒａｇｅ ｉｎ ｄｉｆｆｅｒｅｎｔ ａｇｅｄ ｓｔａｎｄｓ ｏｆ Ｍｏｓｏ Ｂａｍｂｏｏ ｐｌａｎｔａｔｉｏｎｓ ｉｎ Ｔａｏｊｉａｎｇ， Ｈｕｎａｎ．Ａｃｔａ Ｅｃｏｌｏｇｉｃａ Ｓｉｎｉｃａ，２０１７，３７(６) ：２００５• ２０１３． 桃江县毛竹林生态系统碳储量及其空间分布 曹福明 １，２ ，闫文德 １，２，３， * ，田大伦 １，２，３ ，邓湘雯 １，２，３ ，陈建华 １ １ 中南林业科技大学，长沙 ４１０００４ ２ 南方林业生态应用技术国家工程实验室，长沙 ４１０００４ ３ 湖南会同杉木林生态系统国家野外科学观测研究站，怀化 ４１８３０７ 摘要：采用标准地调查和生物量实测方法，研究了湖南省桃江县毛竹林生态系统生物量、碳含量、碳储量及空间分布格局。 结果 表明，不同年龄毛竹林生态系统总生物量分别为：２８．１４７、３０．８８９ ｔ ／ ｈｍ ２ 和 ５７．７６３ ｔ ／ ｈｍ ２ ，其中竹林层生物量为 ２０．２５４、２５．０３６、 ５５．６８５ ｔ ／ ｈｍ ２ ，各器官生物量均以竹竿最高，占器官生物量的 ６３．０％以上。 不同年龄毛竹各器官碳平均含量为 ０．４６６-０．４８３ ｇＣ ／ ｇ；灌木层碳含量为 ０．４７４-０．４８９ ｇＣ ／ ｇ；草本层为 ０．４７２-０．４９０ ｇＣ ／ ｇ；死地被物层为 ０．２１３-０．２７６ ｇＣ ／ ｇ；土壤层有机碳含量为 １４．７９０-３４．５０３ ｇＣ ／ ｇ。 各年龄毛竹林生态系统总碳储量分别为 １３１．２７３、１３９．０８９ ｔ ／ ｈｍ ２ 和 １６７．８１７ ｔ ／ ｈｍ ２ ，其中植被层碳储量为 １３．６２７-２８．４１９ ｔ ／ ｈｍ ２ ，占系统总碳储量的 ９．９３５％-１６．９３５％；死地被物为 ０．３０７-０．４２０ ｔ ／ ｈｍ ２ ，占 ０．２３４％-０．２６５％；土壤层为

Soil organic carbon (SOC) represents a large component of the global carbon cycle, and the SOC pool varies in forest ecosystems depending on species composition, growth stage and management practice. In order to accurately evaluate SOC distribution and dynamics in forests in Hunan Province of China, we reviewed, assembled and analyzed a http: / / www.ecologica.cn comprehensive data package collected from (1) published estimates of SOC contents in various forested soil profiles (a total of 277 soil profiles in the province) in the past 15 years (from 2000 to 2014) , (2) four times of forest inventory data from 1983 to 2009 in Hunan忆s forests, (3) long鄄term field measurements in the Key National Observation Station of Central South University of Forestry and Technology in Huitong County, Hunan Province of China over the past 15 years (2000-2014) and (4) field surveys of 59 soil profiles taken from ten typical forest types in the province during the period of 2008 to 2014. All forests in the province were classified into four categories of timber鄄forests, economic鄄forests, bamboo鄄forests and shrub鄄forests. The timber鄄forests were further divided into eight major forest types based on the species composition of the forest stands. The results showed that the arithmetic average of SOC contents ranged from 9.53 to 22.86 g / kg in the four main forest categories, of which the shrub鄄forests had the highest SOC content. The differences of SOC mainly occurred in the 0-40 cm of soil layer among the studied forest groups. SOC density was in the range of 95.44-181.30 tC / hm 2 in the 0-80 cm soil layer, with an average of 137.15 tC / hm 2 in the examined forests. The differences of SOC density among the forest groups declined with the increase of soil depth, and the effect of forest types on variation of SOC density was gradually weakened with the increasing soil depth. From 1983 to 2009, SOC pool (0-80 cm soil depth) increases in Hunan忆 s timber鄄forests with a net increase of 414.86伊10 6 tC and the area weighted average of SOC density increased 10.98 tC / hm 2 in the studied timber鄄forested soils (0-80 cm soil depth) as well. The difference of SOC pool gradually increased with aged stands of timber鄄forests, mainly occurring in Chinese fir (Cunninghamia lanceolata) forests, Masson Pine (Pinus massoniana) forests and broad鄄leaved forests. Among the forest types, natural forest accounted for a large percentage (>50%) of the total SOC storage in Hunan忆 s forests. But the proportion of SOC in plantation forests increased as the plantation areas gradually increased in the studied province. Economic鄄forests, shrub鄄forests and bamboo鄄forests made different contributions to the total SOC pool (0-80 cm soil depth) in Hunan忆s forests, depending upon planting areas, cultivate systems and management practices. The changes in SOC pool in studied forests were closely associated with the alteration of forested area, convention of forest types and land use changes. These changes in terms of forested area and forest type were related to the fo...

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