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• 研究报告 • 上一篇    下一篇

海南岛热带云雾林地上生物量分布规律

邵晓莉1,程毅康2,王茜茜2,王旭2,巫勇3,洪小江4,方燕山5,陆雍泉4,龙文兴2*   

  1. 1湖北省环境科学研究院, 武汉 430000; 2海南大学热带农林学院, 海口 570100;3湖北省环保厅, 武汉 430000;4霸王岭林业局(霸王岭国家级自然保护区管理局), 海南昌江 572700;5黎母山林场(海南黎母山省级自然保护区管理站), 海南琼中 572900)
  • 出版日期:2018-09-10 发布日期:2018-09-10

Distribution patterns of aboveground biomass of tropical cloud forests in Hainan Island.

SHAO Xiao-li1, CHENG Yi-kang2, WANG Xi-xi2, WANG Xu2, WU Yong3, HONG Xiao-jiang4, FANG Yan-shan5, LU Yong-quan4, LONG Wen-xing2*   

  1. (1Hubei Academy of Environmental Sciences, Wuhan 430000, China; 2Institute of Tropical Agriculture and Forestry, Hainan University, Haikou 570100, China; 3Environmental Protection Department of Hubei Province, Wuhan 430000, China; 4Forestry Bureau of Bawangling (Administration of Bawangling National Natural Reserve), Changjiang 572700, Hainan, China; 5Forestry Station of Limushan (Administration of Limushan Natural Reserve of Hainan Province), Qiongzhong 572900, Hainan, China).
     
  • Online:2018-09-10 Published:2018-09-10

摘要: 生物量是森林最为重要的生态系统功能之一,是物质循环及能量流动的基础。以海南岛尖峰岭、霸王岭和黎母山热带云雾林为对象,调查群落内胸径在1 cm以上的植物胸径和高度;结合异速生长模型,比较3个林区热带云雾林地上生物量随样方大小、树木径级和高度级的变化规律。结果表明:不同样方大小内,3个林区热带云雾林的地上生物量变化规律相同,受降水和温度的影响,尖峰岭和黎母山热带云雾林的地上生物量均显著高于霸王岭。尖峰岭、霸王岭和黎母山热带云雾林地上生物量主要分布于胸径>30 cm的植株,分别占33.0%、32.1%和52.8%。尖峰岭和霸王岭热带云雾林的地上生物量主要分布于高度>7 m的植株,分别占79.9%和70.1%;而黎母山热带云雾林的地上生物量主要分布于高度>9 m的植株,占87.7%;各个径级和高度级上,3个林区热带云雾林的变化规律一致,地上生物量都主要集中在较大的径级和高度级。

关键词: 微生物群落结构, 土壤有机碳, 秸秆还田, 功能基因, 耕作方式, Illumina测序

Abstract:

Plant biomass, one of the most important ecosystem functions of forests, plays fundamental roles in material cycle and energy flow. The diameter at breast height (DBH) and height of plants with DBH≥1 cm were surveyed in tropical cloud forests in Jianfengling Mt., Bawangling Mt. and Limushan Mt. With forest aboveground biomass (AGB) being calculated with an allometric model, we assessed variations in AGB across different plot sizes, DBH classes, and plant height classes in the three tropical cloud forests. Results showed that AGB in the three tropical cloud forests consistently changed across plot sizes, with the AGB being significantly higher in Jianfengling Mt. and Limushan Mt. than in Bawangling Mt., due to the influences of precipitation and air temperature. AGB of Jianfengling Mt., Bawangling Mt. and Limushan Mt. were mainly distributed in trees with DBH≥30 cm, accounting for 33.0%, 32.1% and 52.8%, respectively. For the patterns of AGB across height classes, AGB was mainly distributed in plants with height ≥7 m in Jianfengling Mt. and Bawangling Mt., accounting for 79.9% and 70.1% of total AGB, respectively. ABG in Limushan Mt., however, was mainly distributed in plants with height ≥9 m, accounting for 87.7% of total AGB. Changes in AGB across the three tropical cloud forests were consistent at different DBH and height classes, with AGB being mainly distributed in large trees.
 

Key words: tillage method, soil organic carbon, straw returning, functional gene., microbial community structure, Illumina sequencing