Plant patch size, not number, determines vegetation recovery in mildly degraded Bangor alpine steppes under grazing exclusion
文献类型：期刊论文
| 作者 | Niu, Haishan4,5; Liu, Min3; Zhang, Jing2; Kong, Qian4; Li, Runfu4; Zhu, Chuanlu2; Cui, Xiaoyong2; Wang, Shiping1; Wang, Yanfen4,5 |
| 刊名 | JOURNAL OF MOUNTAIN SCIENCE
 |
| 出版日期 | 2026 |
| 卷号 | 23期号:1页码:67-80 |
| 关键词 | Plant patches Stipa purpurea Patch size Grazing exclusion Degraded restoration |
| ISSN号 | 1672-6316 |
| DOI | 10.1007/s11629-025-9649-5 |
| 产权排序 | 3 |
| 文献子类 | Article |
| 英文摘要 | The alpine grassland vegetation on the Qinghai-Tibet Plateau is composed of plant patches in varied sizes. It remains uncertain whether vegetation recovery following grazing exclusion (GE) in degraded grasslands is driven by increases in patches number (NP), patch size (PS), or both. We based our predictions on two hypotheses: GE intensifies plant competition, and facilitation prevails near patches while competition prevails in interpatch spaces. We predicted that the NP would remain stable or decrease and PS would increase under GE treatment. To evaluate these predictions, we conducted a study in six lightly degraded alpine grasslands under free grazing (FG) conditions in Bangor County, Tibet Autonomous Region, China, with corresponding GE treatments using transects in 2017 and 2018. Results revealed that four sites in 2017 and five sites in 2018 had reduced NP and increased PS, with probabilities of 0.033 (2017) and 0.004 (2018), respectively, and a joint probability of 0.0001 under the null hypothesis that GE does not affect NP or PS. The NP reduction was solely due to the decrease in small patch sizes. An increase in PS was common across species, and a predominant tendency for NP reduction was observed among species across the sites. The overall changes in NP and PS were primarily driven by the three most abundant species (contributing more than 60% in both years), rather than by shifts in floristic composition. Our findings highlight that vegetation recovery in Bangor alpine steppes following GE relies solely on the expansion of existing patches rather than the recruitment of new ones in interpatch gaps. We recommend prioritizing growth-promoting measures, such as nutrient or water management, over seed addition when assisting with GE for restoring lightly degraded grasslands. |
| URL标识 | 查看原文 |
| WOS关键词 | SEMIARID STEPPES ; SOIL ; GRASSLAND ; DYNAMICS ; COMPETITION ; SUCCESSION ; PATTERNS ; SHRUBS ; DESERTIFICATION ; ESTABLISHMENT |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001663114300010 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/219642]  |
| 专题 | 生态系统网络观测与模拟院重点实验室_外文论文 |
| 通讯作者 | Niu, Haishan |
| 作者单位 | 1.Chinese Acad Sci, Inst Tibetan Plateau Res, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Coll Life Sci, Beijing 101408, Peoples R China; 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China; 4.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 101408, Peoples R China; 5.Univ Chinese Acad Sci, Beijing Yanshan Earth Crit Zone, Natl Res Stn, Beijing 101408, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Niu, Haishan,Liu, Min,Zhang, Jing,et al. Plant patch size, not number, determines vegetation recovery in mildly degraded Bangor alpine steppes under grazing exclusion[J]. JOURNAL OF MOUNTAIN SCIENCE,2026,23(1):67-80. |
| APA | Niu, Haishan.,Liu, Min.,Zhang, Jing.,Kong, Qian.,Li, Runfu.,...&Wang, Yanfen.(2026).Plant patch size, not number, determines vegetation recovery in mildly degraded Bangor alpine steppes under grazing exclusion.JOURNAL OF MOUNTAIN SCIENCE,23(1),67-80. |
| MLA | Niu, Haishan,et al."Plant patch size, not number, determines vegetation recovery in mildly degraded Bangor alpine steppes under grazing exclusion".JOURNAL OF MOUNTAIN SCIENCE 23.1(2026):67-80. |
入库方式： OAI收割
来源：地理科学与资源研究所
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