WANG Wendong,LI Jiangui,ZHANG Yutao,et al.Biomass Formation of Six Shrub Species in Several Zones of Tianshan Mountains[J].Research of Soil and Water Conservation,2015,22(05):127-132.
天山林区不同地段6种灌木生物量组成
- Title:
- Biomass Formation of Six Shrub Species in Several Zones of Tianshan Mountains
- Keywords:
- shrubs; biomass; distribution pattern; Tianshan Mountains
- 分类号:
- S718.55+6
- 摘要:
- 分布于天山云杉林下线的山地灌丛是天山重要的植被类型之一，也是天山相对稳定的生态系统类型，在天山水土保持中发挥着重要的作用。以天山6种常见的灌木为研究对象，在天山西部、中部、东部设置调查样地，并用平均标准木收获法获得6种常见灌木各营养器官的生物量。从而探讨了6种灌木在天山三段的分布特征以及各营养器官的分配差异。结果表明：（1）同种灌木在天山西部、中部、东部单株生物量存在着差异，其中天山西部6种灌木生物量明显大于天山中部和东部。主要是由于天山西部水热条件优于天山中部和东部；（2）在天山6种常见灌木类型中，单株生物量从大到小排序为：刚毛忍冬（8 549 g/株） > 黑果栒子（7 943 g/株） > 黑果小檗（7 880 g/株） > 新疆方枝柏（3 014 g/株） > 天山绣线菊（2 837 g/株） > 密刺蔷薇（2 615 g/株）；（3）天山6种常见灌木在天山三段各器官生物量分配比例不同，天山西部主要表现为枝生物量（53.30%）大于根生物量（27.32%），而天山中部和东部则为根生物量（75.90%）大于枝生物量（19.06%），这种分配比例的差异体现了物种对其生境选择的适应性。本研究结果可为对于天山灌丛植被的保护及其退化生态系统的恢复重建提供科学依据。
- Abstract:
- The shrub which distribute in the Tianshan Mountain spruce forests offline is one of important plant bush fallow types of Tianshan Mountains and is a relatively stable ecosystem playing an important role in the process of soil and water conservation. In this paper, six common shrubs spotted in survey plots which had been set in the western, eastern and middle areas of Tianshan Mountain were selected for the study. And the biomass of vegetative organs of six kinds of shrubs was measured using average standard method. Thereby, the differences in the distribution of six shrubs in the Tianshan Mountains and in the distribution of the three sections of different organs were explored. The results showed that: (1)the distribution of biomass of the same shrubs in the western, eastern and middle areas of Tianshan Mountain was different, the reason why biomass of western was significantly greater than the central and eastern area was that the condition of water and heat of western area was better than eastern and middle areas of Tianshan Mountains; (2) the biomass of six-kind of shrubs is in a descending order: Lonicera hispida Pall. (8 549 g/plant) > Cotoneaster melanocarpus Lodd. (7 943 g/plant) > Berberis atrocarpa Schneid. (7 880 g/plant) > Sabina pseudosabina (Fisch. et Mey.) Cheng et W. T. Wang (3 014 g/plant) > Spiraea tianschanica Pojark (2 837 g/plant) > Rosa spinosissima L. (2 615 g/plant); (3) there were differences in the distribution ratios of six kinds of shrubs, reflecting the shrub adaptability to habitat selection. The limb biomass of shrubs (53.30%) was greater than root biomass (27.32%) in the western area, the opposite biomass results were found in the eastern and middle areas. The results of this study may provide the scientific basis for the protection of the shrub vegetation and for restoration of degraded ecosystems in Tianshan Mountains.
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备注/Memo
收稿日期:2014-09-17;改回日期:2014-11-09。
基金项目:自治区公益性科研院所基本科研业务费专项资金项目“天山中部灌木林生物量和生产力研究”；新疆林业生态服务功能监测评估[xjlk（2013）001]
作者简介:王文栋(1979-),男,甘肃武威人,本科,助理研究员,主要从事森林生态、森林水文研究。E-mail:wn8001@126.com
通讯作者:李建贵(1971-),男,山东平度人,博士,教授,博士生导师,主要从事植物群落生态学和植物生理生态学研究。E-mail:lijiang-ui1971@163.com