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| 青海海北高寒草甸五种植被生物量及环境条件比较 | |
| 引用本文： | 李英年,赵新全,王勤学,古松,杜明远,加藤知道,王启兰,赵亮.青海海北高寒草甸五种植被生物量及环境条件比较[J].山地学报,2003,21(3):257-264. |
| 作者姓名： | 李英年 赵新全 王勤学 古松 杜明远 加藤知道 王启兰 赵亮 |
| 作者单位： | 1. 中国科学院西北高原生物研究所,青海,西宁,810001 2. 日本国立环境研究所,日本,筑波,3050053 3. 日本农业环境技术研究所,日本,筑波,3050053 4. 日本筑波大学,日本,筑波,3058577 |
| 基金项目： | 中国科学院知识创新工程项目(KZCX1—SW—01—01AS)，亚太地区环境创新战略计划(APEIS)项目，日本国温带高山草原生态系统碳素动态和温暖化影响研究项目 |
| 摘 要： | 分析了高寒草甸不同植被类型植物种类组成、生物量变化规律及其差异。研究表明不同植被类型的分布与土壤湿度和温度有很大的关系。藏篙草草甸、金露梅灌丛草甸、矮篙草草甸、正恢复的矮篙草草甸、小嵩草草甸这5种不同植被类型所对应的土壤湿度依次降低，而所对应的土壤温度依次升高；植物种类数量表现为矮嵩草草甸＞金露梅灌丛草甸＞小篙草草甸＞正恢复的矮篙草草甸＞藏篙草草甸。地上生物量高低依次为小嵩草革甸＞矮嵩草草甸＞金露梅灌丛草甸＞正恢复的矮篙草草甸＞藏篙草草甸；地下生物量则表现出金露梅灌丛革甸＞矮嵩草甸＞小篙草草甸＞正恢复的矮篙草草甸的特征，而其在年内的周转值表现出金露梅灌丛草甸＞正承复的矮嵩草草甸＞小篙草草甸＞矮篙草草甸;土壤有机质的季节变化表现为0—40cn整层土壤有机质含量小嵩草草甸＞金露梅灌丛草甸＞矮嵩草草甸＞正恢复的矮篙草草甸，0—10cm的表层土壤有机质金露梅灌丛草甸＞矮嵩草草甸＞小嵩草草甸＞正恢复的矮篙草草甸。 |
| 关 键 词： | 高寒草甸 植被类型 生物量 地温 土壤湿度 |
| 文章编号： | 1008-2786(2003)03-0257-08 |
| 修稿时间： | 2002年12月10 |
The Comparison of Community Biomass and Environmental Condition of Five Vegetational Type in Alpine Meadow of Haibei, Qinghai Province |
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| LI Ying-nian,ZHAO Xin-quan,WANG Qin-xue,GU Song,DU Ming-yuan,Tomomichi Kato,WANG Qi-lan,and ZHAO Liang.The Comparison of Community Biomass and Environmental Condition of Five Vegetational Type in Alpine Meadow of Haibei, Qinghai Province[J].Journal of Mountain Research,2003,21(3):257-264. | |
| Authors: | LI Ying-nian ZHAO Xin-quan WANG Qin-xue GU Song DU Ming-yuan Tomomichi Kato WANG Qi-lan and ZHAO Liang |
| Abstract: | The pattern of plant specific composition and biomass difference at different vegetational type were analyzed in alpine meadow . The result suggested that the distribution of vegetational type correlated with soil humidity and soil temperature obviously. Soil humidity decreased whereas soil temperature increased corresponding to five different vegetational type which was Kobresia tibetica meadow, Potentilla fruticosa shrub meadow, Kobresia humilis meadow, restoring Kobresia humilis meadow and Kobrea pygmaea meadow, respectively. The number of plant species showed the pattern like this: K. humilis meadow>P. fruticosa shrub meadow >K. pygmaea meadow >restoring K. humilis meadow > K. tibetica meadow. The above-ground biomass showed the pattern like this: K. pygmaea meadow > K. humilis meadow > P. fruticosa shrub meadow > K. tibetica meadow>restoring K. humilis meadow. The bellow-ground biomass showed the pattern as bellow : P. fruticosa shrub meadow > K. humilis meadow > K. pygmaea meadow > restoring K. humilis meadow, and their turnover value in 1 year showed the pattern like this: P. fruticosa shrub meadow >restoring K. humilis meadow > K. pygmaea meadow > K. humilis meadow. In this paper, we measured the content of organic matter in different meadow soil at different seasons. The content of organic matter of soil (0~40 cm) at four vegetational types showed the pattern like this : K. pygmaea meadow>P. fruticosa shrub meadow >K. humilis meadow>restoring K. humilis meadow, whereas the content of organic matter of 0 - 10 cm soil showed the pattern as bellow: P. fruticosa shrub meadow >K. humilis meadow>K. pygmaea meadow>restoring K. humilis meadow. |
| Keywords: | alpine meadow vegetational type biomass soil temperature soil humidity |
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