Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.1017/inp.2020.33 |
| Cover-biomass relationships of an invasive annual grass, Bromus rubens, in the Mojave Desert | |
| Abella, Scott R. | |
| 通讯作者 | Abella, SR (corresponding author), Univ Nevada, Sch Life Sci, 4505 South Maryland Pkwy, Las Vegas, NV 89154 USA. |
| 来源期刊 | INVASIVE PLANT SCIENCE AND MANAGEMENT
 |
| ISSN | 1939-7291 |
| EISSN | 1939-747X |
| 出版年 | 2020 |
| 卷号 | 13期号:4页码:288-292 |
| 英文摘要 | Estimates of plant biomass are helpful for many applications in invasive plant science and management, but measuring biomass can be time-consuming, costly, or impractical if destructive sampling is inappropriate. The objective of this study was to assess feasibility of developing regression equations using a fast, nondestructive measure (cover) to estimate aboveground biomass for red brome (Bromus rubens L.), a widespread nonnative annual grass in the Mojave Desert, USA. At three study sites, including one measured for three consecutive years, B. rubens cover spanned 0.1% to 85% and aboveground biomass 1 to 321 g m(-2). In log(10)-transformed linear regressions, B. rubens cover accounted for 68% to 96% of the variance in B. rubens biomass among sites, with all coefficients of determination significant at P < 0.05. For every doubling of percent cover, biomass was predicted to increase by 78%, 83%, and 144% among the three sites. At the site measured for three consecutive years, which ranged in rainfall from 65% to 159% of the long-term average, regression slopes each year differed from other years. Regression results among sites were insensitive to using cover classes (10 classes encompassing 0% to 100% cover) compared with simulated random distribution of integer cover within classes. Biomass of B. rubens was amenable to estimation in the field using cover, and such estimates may have applications for modeling invasive annual plant fuel loads and ecosystem carbon storage. |
| 英文关键词 | Allometric equations double sampling fuel modeling red brome wildfire |
| 类型 | Article |
| 语种 | 英语 |
| 收录类别 | SCI-E |
| WOS记录号 | WOS:000608736400010 |
| WOS关键词 | ABOVEGROUND BIOMASS ; PLANT BIOMASS ; REGRESSION ; VEGETATION ; MADRITENSIS ; SAGEBRUSH |
| WOS类目 | Plant Sciences |
| WOS研究方向 | Plant Sciences |
| 资源类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/348941 |
| 作者单位 | [Abella, Scott R.] Univ Nevada, Sch Life Sci, 4505 South Maryland Pkwy, Las Vegas, NV 89154 USA |
| 推荐引用方式 GB/T 7714 | Abella, Scott R.. Cover-biomass relationships of an invasive annual grass, Bromus rubens, in the Mojave Desert[J],2020,13(4):288-292. |
| APA | Abella, Scott R..(2020).Cover-biomass relationships of an invasive annual grass, Bromus rubens, in the Mojave Desert.INVASIVE PLANT SCIENCE AND MANAGEMENT,13(4),288-292. |
| MLA | Abella, Scott R.."Cover-biomass relationships of an invasive annual grass, Bromus rubens, in the Mojave Desert".INVASIVE PLANT SCIENCE AND MANAGEMENT 13.4(2020):288-292. |
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