The use of Groasis Waterboxx devices to improve mineland reclamation efforts by increasing transplant survival and growth of five native woody species

IF 2.8 3区 环境科学与生态学 Q2 ECOLOGY
Holley M. Lund, Brad Geary, Kate Ruebelmann, Roger T. Koide, Bridget Calder, Matthew D. Madsen
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Abstract

The reclamation of disturbed lands worldwide is a difficult and increasing problem. In the Mountain West region of the United States, mining activities commonly occur in zones dominated by native woody plants. The restoration of woody plants in these areas is challenging, and direct seeding efforts result in poor seedling emergence and establishment. Therefore, seedling transplants are often used, but they frequently experience high mortality during the first year, particularly due to summer stresses. We evaluated if the Groasis Waterboxx device could be used to mitigate drought stress on seedling transplants and improve their establishment on a reclaimed waste rock dump. The Waterboxx device collects precipitation into a polypropylene reservoir and slowly dispenses water onto the soil next to the seedling. To test such a hypothesis, 400 seedlings from five native woody plants (Atriplex canescens, Cercocarpus ledifolius, Pinus edulis, Purshia tridentata, and Rhus glabra) were planted with and without a Waterboxx. The Waterboxx device improved soil water potential, at 40 cm, it took 1 month longer to go below −1 MPa under a Waterboxx. Survival increased 30–65% in four of the five species, and seedling vigor increased for three of the five species. Vigor was higher with all plant species at both planting times and was significantly better in 50% of comparisons. Results support the use of the Waterboxx for improving seedling establishment on mineland overburden sites in the semiarid mountain west. The effectiveness of the Waterboxx device provides merit for future testing where drought challenges seedling establishment.
使用 Groasis Waterboxx 设备提高五种本地木本植物的移植存活率和生长率,从而改善矿区开垦工作
在世界范围内,受干扰土地的复垦是一个棘手且日益严重的问题。在美国西部山区,采矿活动通常发生在以本地木本植物为主的地带。在这些地区恢复木本植物极具挑战性,直接播种会导致幼苗出土和成活率低下。因此,通常采用幼苗移植的方法,但第一年的死亡率往往很高,特别是由于夏季的压力。我们评估了 Groasis Waterboxx 装置是否可用于减轻幼苗移植的干旱压力,并改善其在填海废石堆上的成活率。Waterboxx 装置将降水收集到一个聚丙烯蓄水池中,然后缓慢地将水喷洒到秧苗旁边的土壤上。为了验证这一假设,我们种植了 400 株五种本地木本植物(Atriplex canescens、Cercocarpus ledifolius、Pinus edulis、Purshia tridentata 和 Rhus glabra)的幼苗,分别使用和不使用 Waterboxx。Waterboxx 设备改善了土壤水势,在 40 厘米处,Waterboxx 设备下的土壤水势低于-1 兆帕需时 1 个月。五个物种中有四个物种的存活率提高了 30-65%,五个物种中有三个物种的幼苗活力增强。所有植物品种在两个种植时间的活力都较高,在 50% 的比较中活力明显提高。研究结果支持使用 Waterboxx 提高西部半干旱山区雷区覆土植苗率。Waterboxx 装置的有效性为今后在干旱对育苗造成挑战的地区进行测试提供了依据。
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来源期刊
Restoration Ecology
Restoration Ecology 环境科学-生态学
CiteScore
6.50
自引率
15.60%
发文量
226
审稿时长
12-24 weeks
期刊介绍: Restoration Ecology fosters the exchange of ideas among the many disciplines involved with ecological restoration. Addressing global concerns and communicating them to the international research community and restoration practitioners, the journal is at the forefront of a vital new direction in science, ecology, and policy. Original papers describe experimental, observational, and theoretical studies on terrestrial, marine, and freshwater systems, and are considered without taxonomic bias. Contributions span the natural sciences, including ecological and biological aspects, as well as the restoration of soil, air and water when set in an ecological context; and the social sciences, including cultural, philosophical, political, educational, economic and historical aspects. Edited by a distinguished panel, the journal continues to be a major conduit for researchers to publish their findings in the fight to not only halt ecological damage, but also to ultimately reverse it.
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