文章摘要
陈高路, 陈林, 庞丹波, 马进鹏, 万红云, 王继飞, 李静尧, 李学斌.贺兰山10种典型植物固碳释氧能力研究[J].水土保持学报,2021,35(3):206~213,220
贺兰山10种典型植物固碳释氧能力研究
Study on Carbon Sequestration and Oxygen Release Capacity of 10 Typical Plants in Helan Mountain
投稿时间:2020-11-27  
DOI:10.13870/j.cnki.stbcxb.2021.03.029
中文关键词: 贺兰山  乔灌草  固碳释氧  叶片性状
英文关键词: Helan Mountain  arbor bush  carbon sequestration and oxygen release  leaf traits
基金项目:宁夏重点研发计划项目(2018BFG02015);国家自然科学基金项目(31960359);第三批宁夏青年科技人才托举工程项目(TJGC2018068);宁夏自然科学基金项目(2020AAC03102)
作者单位E-mail
陈高路1,2,3, 陈林2,3, 庞丹波2,3, 马进鹏2,3, 万红云2,3, 王继飞4, 李静尧4, 李学斌2,3 1. 宁夏大学农学院, 银川 750021

2. 宁夏大学西北退化生态系统恢复与重建教育部重点实验室
, 银川 750021

3. 宁夏大学西北土地退化与生态恢复国家重点实验室培育基地
, 银川 750021

4. 宁夏贺兰山国家级自然保护区管理局
, 银川 750021 
lixuebin@nxu.edu.cn 
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中文摘要:
      为探讨贺兰山典型植物固碳释氧能力,运用Li-6400XT便携式光合仪对贺兰山10种乔灌草进行了光合生理指标的测定,计算10种乔灌草不同尺度的日固碳释氧量,并分析其固碳释氧能力。结果表明:(1)青海云杉的单株叶面积、单株叶干重、叶面积指数显著高于其他植物;苔草的比叶面积最高,且呈现出草本 > 灌木 > 乔木的规律;披针叶黄华的日均净光合速率最高,乔灌草之间无明显差异。(2)单位叶面积日固碳释氧能力由强到弱依次为披针叶黄华、灰榆、山杨、栒子、冰草、油松、小叶忍冬、小檗、青海云杉、苔草;单位冠幅投影面积日固碳释氧能力由强到弱依次为山杨、青海云杉、灰榆、栒子、小檗、小叶忍冬;单株植物日固碳释氧能力由强到弱依次为青海云杉、山杨、油松、灰榆、小檗、栒子、小叶忍冬、披针叶黄华、冰草;4种典型林分乔木日固碳释氧能力由强到弱依次为青海云杉林、混交林、油松林、灰榆林。(3)固碳释氧能力聚类分析表明,单位叶面积尺度上将乔木(4种)、灌木(3种)分为2级,草本(3种)分为3级;单位冠幅投影面积尺度上将乔木(4种)、灌木(3种)均分为3级;植物单株尺度上将乔木(4种)、灌木(3种)、草本(2种)均分为2级;不同林种乔木单位土地面积尺度上将4种典型林分分为2级。(4)测试植物的单位叶面积日固碳释氧量与植物形态指标均没有显著相关性;单位冠幅投影面积日固碳释氧量与叶面积指数呈显著正相关;单株植物日固碳释氧量与株高、胸径和叶面积指数呈显著正相关;单位林地面积日固碳释氧量与林分密度呈显著正相关。综上,青海云杉和山杨在不同尺度上均有较高固碳释氧能力,在今后贺兰山生态修复过程中可以重点考虑这2种乔木,再将小叶忍冬和披针叶黄华等固碳释氧能力较强的灌木和草本与乔木进行合理配置,以达到最大的生态效益。
英文摘要:
      In order to investigate the carbon sequestration and oxygen release capacity of typical plants in the Helan Mountain, the photosynthetic physiological indexes of 10 species of trees, shrubs and grasses were measured by using the portable Li-6400XT photosynthetic apparatus, and the daily carbon sequestration and oxygen release capacity were analyzed. The results showed that:(1) The leaf area, leaf dry weight and leaf area index of Picea crassifolia were significantly higher than those of other plants. The specific leaf area of Carex muliensis was the highest, and showed a rank of herb > shrub > tree. The average daily net photosynthetic rate of Thermopsis lanceolata was the highest, and there was no significant difference between trees, shrubs and grasses. (2) The descending order of daily carbon sequestration and oxygen release capacity per unit leaf area was T. lanceolata, Ulmus glaucescens, Populus davidiana, Cotoneaster hissaricus, Agropyron cristatum, Pinus tabuliformis, Lonicera microphylla, Berberis thunbergii, P. crassifolia, C. muliensis. The descending order of daily carbon sequestration and oxygen release capacity of unit crown width was P. davidiana, P. crassifolia, U. glaucescens, P. tabuliformis, C. hissaricus, B. thunbergii, L. microphylla. The descending order of daily carbon sequestration and oxygen release capacity of a single plant was P. crassifolia, P. davidiana, P. tabuliformis, U. glaucescens, B. thunbergii, C. hissaricus, L. microphylla, T. lanceolata, A. cristatum. The daily carbon sequestration and oxygen release capacity of the four typical stand trees were in a rank of P. crassifolia forest, mixed forest, P. tabuliformis forest, U. glaucescens forest. (3) According to cluster analysis results, the carbon sequestration and oxygen release capacity on the per leaf area of trees (4 species) and shrubs (3 species) were divided into two levels, and herbs (3 species) were divided into three levels, which on the projection area scale of unit crown width of trees (4 species) and shrubs (3 species) were divided into three levels. However, the tree (4 species), shrub (3 species) and herb (2 species) were divided into two levels according to the single plant scale, and on the scale of unit land area of different forest species, four typical forests are divided into two levels. (4) There was no significant correlation between the daily carbon sequestration and oxygen release per unit leaf area of plants and the plant morphological indicators. The daily carbon sequestration and oxygen release per unit canopy projection area was significantly positively correlated with the leaf area index. Moreover, we observed that the daily carbon sequestration and oxygen release per plant was significantly positively correlated with plant height, diameter at breast height and leaf area index. The daily carbon sequestration and oxygen release per unit forest area was significantly positive correlation with stand density. In conclusion, both P. crassifolia and P. davidiana had high carbon sequestration and oxygen release capacity in different scales. In the ecological restoration process of the Helan Mountain in the future, the two species of trees should be given priority consideration, and shrubs and herbs with high carbon sequestration and oxygen release capacity, such as C. hissaricus, should be added to achieve the maximum ecological benefits.
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