Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.1016/j.catena.2021.105320 |
| Cryptogams build up a living microcosm: Geoecological effects of biocrusts on volcanic tephra (Haleakala, Maui, Hawai'i) | |
| Perez, Francisco L. | |
| 通讯作者 | Perez, FL (corresponding author), Univ Texas Austin, Dept Geog & Environm, Austin, TX 78712 USA. |
| 来源期刊 | CATENA
 |
| ISSN | 0341-8162 |
| EISSN | 1872-6887 |
| 出版年 | 2021 |
| 卷号 | 203 |
| 英文摘要 | This study analyzes data of moss/lichen biocrusts on volcanic tephra at 2335 m in Haleakala Crater (Maui, Hawai.i). Samples were compared among three adjacent positions: rolling crusts, pinnacled crusts, and bare tephra; two profiles contrasted substrate variation in crust and tephra areas. Field experiments assessed soil shear- and compressive-strength, infiltration rates, and diurnal soil temperatures; a lab experiment measured evaporation from crust specimens for 9 days. Biocrusts significantly affected physical, chemical, and structural soil properties. Fine particles, organic matter, and water storage were appreciably greater in biocrusts. Micro-sampling indicated upper-pinnacle sections accumulated more fine grains due to capture of volcanic ash, and also contained greater organic matter, than lower-pinnacle portions. Crust areas experienced infiltration rates similar to 2.8 times faster than tephra; mean diurnal temperatures were 12.1 degrees C (26.9 vs 39.0 degrees C) cooler in crusts than in tephra. Saturated crust specimens stored similar to 2.7 times more moisture than tephra soils; slower evaporation in biocrusts significantly lengthened the period over which poikilohydric cryptogams are able to maintain metabolic activity. Soil shear- and compressive-strength were higher on crusts than on tephra. Biocrust soils showed greater fertility, as available Ca2+, Mg2+, K+, P, NH4+-N, and cation-exchange capacity were higher than in tephra. NH4+-N was more concentrated under rolling crusts than in pinnacled ones; this is mainly ascribed to sampling methodology. Buried profile horizons suggest the site experienced additional tephra deposition during episodic volcanic eruptions. A developmental model assesses interactions among soil and environmental processes, and provides an integrated geoecological view of linkages that influenced biocrust genesis. |
| 英文关键词 | Biocrusts Grimmia torquata Peltigera rufescens Soil properties Volcanic tephra |
| 类型 | Article |
| 语种 | 英语 |
| 收录类别 | SCI-E |
| WOS记录号 | WOS:000654354000019 |
| WOS关键词 | BIOLOGICAL SOIL CRUSTS ; EQUATORIAL ANDES ; ORGANIC-MATTER ; CRATER MAUI ; DESERT ; ENVIRONMENT ; TEMPERATURE ; PELTIGERA ; LICHEN ; ARGYROXIPHIUM |
| WOS类目 | Geosciences, Multidisciplinary ; Soil Science ; Water Resources |
| WOS研究方向 | Geology ; Agriculture ; Water Resources |
| 资源类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/349811 |
| 作者单位 | [Perez, Francisco L.] Univ Texas Austin, Dept Geog & Environm, Austin, TX 78712 USA |
| 推荐引用方式 GB/T 7714 | Perez, Francisco L.. Cryptogams build up a living microcosm: Geoecological effects of biocrusts on volcanic tephra (Haleakala, Maui, Hawai'i)[J],2021,203. |
| APA | Perez, Francisco L..(2021).Cryptogams build up a living microcosm: Geoecological effects of biocrusts on volcanic tephra (Haleakala, Maui, Hawai'i).CATENA,203. |
| MLA | Perez, Francisco L.."Cryptogams build up a living microcosm: Geoecological effects of biocrusts on volcanic tephra (Haleakala, Maui, Hawai'i)".CATENA 203(2021). |
| 条目包含的文件 | 条目无相关文件。 | |||||
| 个性服务 |
| 推荐该条目 |
| 保存到收藏夹 |
| 导出为Endnote文件 |
| 谷歌学术 |
| 谷歌学术中相似的文章 |
| [Perez, Francisco L.]的文章 |
| 百度学术 |
| 百度学术中相似的文章 |
| [Perez, Francisco L.]的文章 |
| 必应学术 |
| 必应学术中相似的文章 |
| [Perez, Francisco L.]的文章 |
| 相关权益政策 |
| 暂无数据 |
| 收藏/分享 |
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
