[1]徐松,廖超英,多杰吉,等.毛乌素沙地樟子松人工林不同坡向的碳储量及空间分布研究[J].水土保持研究,2015,22(06):14-18.
　XU Song,LIAO Chaoying,DUO Jieji,et al.Study of Carbon Storage and Spatial Distribution of Pinus sylvestris Artificial Forest Under Different Slope Aspects in Mu Us Desert[J].Research of Soil and Water Conservation,2015,22(06):14-18.
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毛乌素沙地樟子松人工林不同坡向的碳储量及空间分布研究

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 22 期数: 2015年06期 页码: 14-18 栏目: 出版日期: 2015-12-28
Title:
Study of Carbon Storage and Spatial Distribution of Pinus sylvestris Artificial Forest Under Different Slope Aspects in Mu Us Desert
作者:
徐松1,3, 廖超英2,3, 多杰吉3,4, 付广军5
1. 西北农林科技大学 水土保持研究所, 陕西 杨凌 712100;
2. 西北农林科技大学 资源环境学院;
3. 农业部西北植物营养与农业环境重点实验室, 陕西 杨凌 712100;
4. 西北农林科技大学 林学院, 陕西 杨凌 712100
Author(s):
XU Song1,3, LIAO Chaoying2,3, DUO Jieji3,4, FU Guangjun5
1. Institute of Soil and Water Conservation, Northwest A & F University, Yangling, Shaanxi 712100, China;
2. College of Natural Resources and Environment, Northwest A & F University, Yangling, Shaanxi 712100, China;
3. Key Laboratory of Plant Nutrition and Agri-environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, China;
4. College of Forestry, Northwest A & F University, Yangling, Shaanxi 712100, China
关键词:
樟子松; 坡向; 碳储量; 生物量
Keywords:
Pinus sylvestris; aspect; carbon storage; biomass
分类号:
S791.253
摘要:
采样分析了樟子松人工林林木不同器官碳储量、凋落物碳储量及土壤不同土层碳储量，以研究不同坡向樟子松人工林系统碳储量及其空间分布。结果表明：丘间地（Interdune）树木碳密度显著高于背风坡（Leeward）和迎风坡（Windward）（p < 0.05）。三种立地条件下樟子松各器官碳密度分配分别为：树干碳密度 > 根碳密度 > 枝碳密度 > 叶碳密度，其中丘间地和背风坡林木分配较多的碳同化物给树干生长，迎风破林分则分配较多的同化物给根系生长，说明植物各器官碳含量受坡向的影响。丘间地的凋落物密度与迎风坡没有明显差异，而背风坡显著低于丘间地（p < 0.05）。整个坡面（0—50 cm）土壤有机碳密度丘间地显著高于迎风坡和背风坡，迎风坡与背风坡之间没有显著差异。樟子松林系统总碳密度大小为丘间地（98.86 t/hm2）> 背风坡（72.3 t/hm2）> 迎风坡（51.2 t/hm2），其中凋落物占总碳储量的2.8%~3.1%。背风坡和丘间地的土壤碳密度占林分总碳密度的比例低于迎风坡，但林木碳密度占林分总碳密度比例则相反，表明坡向对林分碳储量的空间分布有明显影响。
Abstract:
Based on the investigation data and laboratory experiment, the influence of slope aspects to carbon storage and its spatial distribution had been examined in Pinus sylvestris artificial forest. According to the measurement, the forest carbon density of interdune was much higher than leeward and windward, and the order of its organ carbon density was trunk, root, brunch and leaf. In addition, more carbon assimilation was distributed in trunk growth in interdune and leeward, while root got more carbon in windward, which showed that aspect had the effect on organ carbon distribution. There was not obvious difference between leeward and windward in litter carbon density, leeward was significantly lower than interdune. Moreover, the same results were obtained in whole soil profile. Under every part carbon storage in land, the order of total carbon density was interdune(98.86 t/hm2), leeward(72.3 t/hm2), windward(51.2 t/hm2), the litter carbon storage accounted for 2.8% to 3.1% of total carbon. The soil carbon density accounting for stand carbon density in leeward and interdune were lesser than windward, but it was opposite in forest carbon density, which reflected that stand carbon distribution was affected by slope significantly.

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备注/Memo

收稿日期:2014-12-07;改回日期:2014-12-22。
基金项目:国家自然科学资助项目（3067033）
作者简介:徐松(1988-),男,新疆阿瓦提县人,硕士研究生,主要从事水土保持与荒漠化研究。E-mail:shouxincool@163.com
通讯作者:廖超英(1959-),男,安徽宿州人,教授,博士生导师,主要从事水土保持与荒漠化防治研究。E-mail:chaoying95@163.com

更新日期/Last Update: 1900-01-01