Kang Wen-xing, Tian Zheng, He Jie-nan, Cui Sha-sha
Central South University of Forestry and Technology, Changsha, China.
Ying Yong Sheng Tai Xue Bao. 2009 Dec;20(12):2917-24.
Based on an extensive collection of information and experimental data, this paper studied the carbon cycle in ten kinds of forest ecosystem in Guangzhou, China, aimed to explore the carbon cycling patterns in, southern subtropical forest ecosystems. For the test ecosystems, their carbon density ranged from 108.35 to 151.85 t C x hm(-2), with 10. 85-48.86 t C x hm(-2) in tree layer and 87.74-99.01 t C x hm(-2) in soil layer (0-60 cm), being lower than the national average. There were 4. 41-9. 15 t C x hm(-2) x a(-1) flowed from atmosphere to vegetation stratum, 0. 74-2.06 t C x hm(-2) x a(-1) from vegetation stratum to soil, and 3.94-5.42 t C x hm(-2) x a(-1) from soil to atmosphere, i.e., the forest systems absorbed 0.47-4.97 t C x hm(-2) x a(-1) from atmosphere. The net ecosystem production (NEP) varied with forest stand, being higher for broadleaved forest than coniferous forest, mixed forest than pure forest, and natural secondary forest than artificial forest.
基于广泛收集的信息和实验数据，本文研究了中国广州十种森林生态系统中的碳循环，旨在探索南亚热带森林生态系统中的碳循环模式。对于受试生态系统，其碳密度在108.35至151.85 t C·hm⁻²之间，其中乔木层为10.85 - 48.86 t C·hm⁻²，土壤层（0 - 60厘米）为87.74 - 99.01 t C·hm⁻²，低于全国平均水平。有4.41 - 9.15 t C·hm⁻²·a⁻¹从大气流向植被层，0.74 - 2.06 t C·hm⁻²·a⁻¹从植被层流向土壤，3.94 - 5.42 t C·hm⁻²·a⁻¹从土壤流向大气，即森林系统从大气中吸收0.47 - 4.97 t C·hm⁻²·a⁻¹。净生态系统生产力（NEP）随林分而异，阔叶林高于针叶林，混交林高于纯林，天然次生林高于人工林。
