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中国农学通报

中国农学通报 ›› 2022, Vol. 38 ›› Issue (35): 17-21.doi: 10.11924/j.issn.1000-6850.casb2021-1217

所属专题： 生物技术； 园艺

• 林学·园艺·园林 • 上一篇    下一篇

不同林分密度毛竹林生态系统碳储量特征

刘海英1(), 王增1, 徐耀文2, 葛晓改2, 周本智2, 蒋仲龙1()   

  1. 1浙江省公益林和国有林场管理总站，杭州 310009
    2中国林业科学研究院亚热带林业研究所，国家林草局浙江钱江源森林生态系统定位观测研究站，杭州 311400
  • 收稿日期:2021-12-28 修回日期:2022-02-23 出版日期:2022-12-15 发布日期:2022-12-09
  • 通讯作者: 蒋仲龙
  • 作者简介:刘海英，女，1972年出生，浙江杭州人，高级工程师，本科，研究方向：主要从事森林生态学研究。通信地址：310009 浙江省杭州市国有林场管理总站，E-mail：113541444@qq.com。
  • 基金资助:
    中央级公益性科研院所基本科研业务费专项资金项目“长江经济带林草生态系统服务功能30年变化评估”(CAFYBB2019ZD001);浙江省公益林和国有林场管理总站委托项目“省级生态定位站建设评价与功能提升”(GYLZ-202104)

Characteristics of Carbon Storage in Phyllostulis pubescens Ecosystem with Different Stand Densities

LIU Haiying1(), WANG Zeng1, XU Yaowen2, GE Xiaogai2, ZHOU Benzhi2, JIANG Zhonglong1()   

  1. 1Zhejiang Ecological Forest and State Forest Farm Administration, Hangzhou 310009
    2Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Qianjiangyuan Forest Ecosystem Positioning Observation and Research Station, State Forestry Administration, Hangzhou 311400
  • Received:2021-12-28 Revised:2022-02-23 Online:2022-12-15 Published:2022-12-09
  • Contact: JIANG Zhonglong

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摘要：

为了解毛竹林生态系统碳储量特征和碳库分配格局，以浙江钱江源森林生态系统定位观测研究站庙山坞林场为例，对5种林分密度毛竹林碳储量进行了分析和比较。5种林分密度的毛竹林土壤有机碳含量随着土层深度的增加均表现逐渐减少的变化趋势；毛竹林系统中土壤层碳储量均为各个林分类型中密度最高的组分，范围为127.65~166.65 t/ hm2；乔木层碳储量为15.59~31.59 t/ hm2，林分Ⅳ和Ⅴ的乔木层碳储量显著高于其他林分(P<0.05)；五种林分灌草层和凋落物层碳储量均较少。随着林分密度的增加，毛竹林乔木层、土壤层和总系统碳储量也均增加。随着林分密度增加，毛竹林系统碳储量也逐渐增加，和其他森林生态系统相比，毛竹林生态系统碳储量仍略低，在不影响经济效益的情况下，建议再增加种植密度。

关键词: 毛竹林, 有机碳, 林分密度, 碳储量

Abstract:

In order to understand the characteristics of carbon storage and the distribution pattern of carbon pool in Phyllostulis pubescens ecosystem, P. pubescens forests with five typical stand densities were selected in Miaoshanwu Forest Farm of Qianjiangyuan Forest Ecosystem Positioning Observation and Research Station in Zhejiang Province. The carbon storage in the P. pubescens ecosystem was analyzed. The analysis showed that, among the 5 P. pubescens stand densities, the soil organic carbon content decreased with the increase of soil depth. Soil layer carbon storage was the highest component of carbon storage of all stand types, ranging from 127.65 t/hm2 to 166.65 t/hm2. The carbon storage in the arborous layer was from 15.59 t/hm2 to 31.59 t/hm2, and the arborous layer in stand density IV and V had significantly higher carbon storage than that in other stand densities (P<0.05); and the carbon storage in the shrub-herb layer and litter layer was less. With the increase of stand density, the carbon storage of arborous layer, soil layer and the total ecosystem of P. pubescens also increased. In conclusion, with the increase of stand density, the carbon storage of P. pubescens ecosystem increases gradually. Compared with other forest ecosystems, the carbon storage of P. pubescens ecosystem is still slightly lower, and it is recommended to increase the planting density without affecting the economic benefit.

Key words: Phyllostulis pubescens forest, organic carbon, stand density, carbon storage

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