Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.agee.2013.11.026 |
Arid old-field restoration: Native perennial grasses suppress weeds and erosion, but also suppress native shrubs | |
Porensky, Lauren M.1; Leger, Elizabeth A.1; Davison, Jay2; Miller, W. Wally1; Goergen, Erin M.1; Espeland, Erin K.1; Carroll-Moore, Erin M.1 | |
通讯作者 | Porensky, Lauren M. |
来源期刊 | AGRICULTURE ECOSYSTEMS & ENVIRONMENT
![]() |
ISSN | 0167-8809 |
EISSN | 1873-2305 |
出版年 | 2014 |
卷号 | 184页码:135-144 |
英文摘要 | Rates of cropland abandonment in arid regions are increasing, and abandoned fields in such regions can have low levels of ecosystem function and biodiversity. Long-lived, drought-tolerant shrubs are dominant components of many arid ecosystems, providing multiple ecosystem services such as soil stabilization, herbaceous plant facilitation, carbon storage and wildlife habitat. On abandoned agricultural fields, shrub restoration is hindered by multiple challenges, including erosion, water stress and invasive species. We hypothesized that applying short-term irrigation and seeding native perennial grasses would facilitate native shrub establishment by reducing erosion and weed abundance. Using a blocked split-plot design, we evaluated the separate and combined impacts of short-term irrigation and perennial grass seeding on five-year restoration outcomes (including direct measurements of wind erosion) at two former agricultural fields in North America’s arid Great Basin. After two years, irrigation had increased the density and biomass of seeded grasses by more than ten-fold. The combination of irrigation and seeded grasses was associated with significantly lower wind erosion, weed density and weed biomass. Three years after irrigation ended, seeded grasses remained significantly more abundant in formerly irrigated than non-irrigated plots. Formerly irrigated plots also had significantly less bare ground, annual plant cover and weed biomass than non-irrigated plots. Large plant-canopy gaps were fewer in irrigated and seeded plots. Although seeded grasses reduced erosion and invasion, they failed to facilitate native shrub establishment. Shrub cover and density were highest in plots that had been drill-seeded and irrigated, but lacked perennial grasses. Our results indicate that short-term irrigation has persistent restoration benefits, and that a tradeoff exists between the benefits and costs of seeding perennial grasses into degraded arid shrubland sites. Published by Elsevier B.V. |
英文关键词 | Cropland abandonment Irrigation Native shrub facilitation US arid Great Basin Walker Basin Weed control |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000334002700014 |
WOS关键词 | POSITIVE INTERACTIONS ; ABIOTIC STRESS ; BIG SAGEBRUSH ; LAND-USE ; SOIL ; ESTABLISHMENT ; FACILITATION ; VEGETATION ; DIVERSITY ; RECOVERY |
WOS类目 | Agriculture, Multidisciplinary ; Ecology ; Environmental Sciences |
WOS研究方向 | Agriculture ; Environmental Sciences & Ecology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/180531 |
作者单位 | 1.Univ Nevada, Dept Nat Resources & Environm Sci, Reno, NV 89557 USA; 2.Univ Nevada Cooperat Extens, Fallon, NV 89406 USA |
推荐引用方式 GB/T 7714 | Porensky, Lauren M.,Leger, Elizabeth A.,Davison, Jay,et al. Arid old-field restoration: Native perennial grasses suppress weeds and erosion, but also suppress native shrubs[J],2014,184:135-144. |
APA | Porensky, Lauren M..,Leger, Elizabeth A..,Davison, Jay.,Miller, W. Wally.,Goergen, Erin M..,...&Carroll-Moore, Erin M..(2014).Arid old-field restoration: Native perennial grasses suppress weeds and erosion, but also suppress native shrubs.AGRICULTURE ECOSYSTEMS & ENVIRONMENT,184,135-144. |
MLA | Porensky, Lauren M.,et al."Arid old-field restoration: Native perennial grasses suppress weeds and erosion, but also suppress native shrubs".AGRICULTURE ECOSYSTEMS & ENVIRONMENT 184(2014):135-144. |
条目包含的文件 | 条目无相关文件。 |
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。