| 基于活力和恢复力的典型草原健康评价和群落退化分级研究 |
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| 引用本文： | 王立新,刘华民,吴璇,梁存柱,王炜,刘钟龄,杨劼. 基于活力和恢复力的典型草原健康评价和群落退化分级研究[J]. 环境污染与防治, 2010, 32(12) |
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| 作者姓名： | 王立新 刘华民 吴璇 梁存柱 王炜 刘钟龄 杨劼 |
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| 作者单位： | 内蒙古大学环境与资源学院;中美生态、能源及可持续性科学内蒙古研究中心;内蒙古大学生命科学学院;南开大学环境科学与工程学院; |
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| 基金项目： | 国家科技支撑计划项目，国家"973计划"前期研究专项项目，国家自然科学基金资助项目 |
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| 摘 要： | 根据群落的不同退化演替状况和物种组成情况,随机选取19个位于锡林郭勒高原和呼伦贝尔高原的调查样地,进行典型草原健康评价和群落退化分级研究。结果表明,处在不同退化演替阶段的草原中的群落的优势种类型、活力和恢复力指数均存在很大差异,活力和恢复力指数不存在明显的相关性,这可能是由于活力指数表现的是植物的地上生物量,而恢复力指数表现的是植物的株/丛数,在株/丛数很多的情况下生物量可能很小;草原群落地上总生物量受放牧强度、刈割程度、围封时间、围封前群落状态和区域降水等因素的综合作用,使得各调查样地群落的活力指数差异显著;以中国科学院草原生态系统定位研究站1981年设置的围封的羊草+大针茅草原当时的状态作为参照系统,评价了呼伦贝尔高原和锡林郭勒高原典型草原的健康状况,并对其退化程度进行了量化分级,可为草原管理、植被恢复重建和生态系统健康评价提供参考。
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| 关 键 词： | 典型草原 活力 恢复力 生态系统健康 |
Ecosystem health assessment and degradation classification for typical steppe in Inner Mongolia plateau based on the vigor and resilience of plant communities |
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| WANG Lixin,LIU Huamin,WU Xuan,LIANG Cunzhu,WANG Wei,LIU Zhongling,YANG Jie. Ecosystem health assessment and degradation classification for typical steppe in Inner Mongolia plateau based on the vigor and resilience of plant communities[J]. Environmental Pollution & Control, 2010, 32(12) |
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| Authors: | WANG Lixin LIU Huamin WU Xuan LIANG Cunzhu WANG Wei LIU Zhongling YANG Jie |
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| Affiliation: | WANG Lixin1,2,LIU Huamin3,WU Xuan1,4,LIANG Cunzhu2,3,WANG Wei3,LIU Zhongling3,YANG Jie2,3.(1.College of Environment and Resources,Inner Mongolia University,Huhhot Inner Mongolia 010021,2.Sino-US Center for Conservation,Energy and Sustainability Science,3.College of Life Sciences,4.College of Environment Science and Engineering,Nankai University,Tianjin 300071) |
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| Abstract: | The characteristic of plant communities in the typical steppe of the Inner Mongolia plateau were investigated,and the vigor and resilience of plant communities were also calculated.The plant communities in different degradation and succession series presented great difference in dominant species,vigor and resilience.As the climax of typical steppe,Stripa grandis+Leymus chinensis community kept the healthy species and higher biomass productivity because it could make full use of environmental resources.Accor... |
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| Keywords: | typical steppe vigor resilience ecosystem health |
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