Effects of direct seeding of four native species for reclamation of mined land in the cold desert of Xinjiang in northwest China

IF 1.9 4区农林科学 Q3 ENVIRONMENTAL SCIENCES

Arid Land Research and Management Pub Date : 2023-02-20 DOI:10.1080/15324982.2023.2177212

Qing-Hui Liu, Xiao-ying Zhao, C. Baskin, Cheng-lin Zhu, Nabihan Haster, Wu Wang

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Abstract

Abstract Direct seeding is a more cost-effective method for plant community restoration than transplanting pot-grown plants, but this method is not applicable to all plant species and all regions. To evaluate the effectiveness of direct seeding to restore mined cold desert vegetation without irrigation, Atraphaxis frutescens (L.) Ewersm., Calligonum junceum (Fisch. et Mey.) Litv., Peganum harmala L., and Seriphydium gracilescens (Krasch. et Iljin) Poljak. were directly sown in the bottom of dry furrows and on a flat site in the mined wasteland before the second snowfall in late autumn. Seedling emergence, survival, and growth were monitored for 3 years. For the four species, cumulative seed germination in the furrows ranged from 6.4 to 23.6% and the highest germination was 23.0 and 23.6% for A. frutescens and C. junceum, respectively. Survival at the end of 3 years was 7.0–56.1% for the four species. In the flat area, cumulative seedling emergence for C. junceum, A. frutescens, P. harmala, and S. gracilescens was 0, 0, 0.7, and 1.4%, respectively, and all seedlings died with the onset of drought. Thus, under natural precipitation conditions, the success of direct seeding depends on the microsite and species. We conclude that direct seeding can be an effective method for establishing the shrubs A. frutescens and C. junceum in mined wasteland if seeds are sown in furrows that have been created across the landscape.

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四种土种直接播种对新疆寒沙矿区复垦的影响

摘要直接播种是一种比盆栽植物移栽更经济有效的植物群落恢复方法，但这种方法并不适用于所有植物种类和所有地区。为了评价直接播种在不灌溉的情况下恢复开采的寒冷荒漠植被的有效性，Atraphaxis frutescens (L.)Ewersm。(鱼);最大经济产量。)思高本。(3)、野牡丹(Peganum harmala L.)和麻菜(serphydium gracilescens .)。(见一真)波尔亚克。在深秋第二场雪之前，直接在干涸的犁沟底部和被开采的荒地上的平坦地点播种。对幼苗出苗、成活和生长进行了3年的监测。4种植物的沟内累积种子萌发率在6.4 ~ 23.6%之间，其中荆刺和荆刺的最高种子萌发率分别为23.0%和23.6%。3年末期存活率为7.0 ~ 56.1%。在平原区，荆花、荆花、荆花和荆花的累计出苗率分别为0、0、0.7和1.4%，且均随干旱的到来而死亡。因此，在自然降水条件下，直接播种的成功取决于微场和物种。结果表明，在已开垦的荒地上，直接播种可以有效地种植灌木灌木，如在已开垦的沟壑中播种。

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来源期刊

Arid Land Research and Management 环境科学-环境科学

CiteScore

3.80

自引率

7.10%

发文量

审稿时长

9 months

期刊介绍： Arid Land Research and Management, a cooperating journal of the International Union of Soil Sciences , is a common outlet and a valuable source of information for fundamental and applied research on soils affected by aridity. This journal covers land ecology, including flora and fauna, as well as soil chemistry, biology, physics, and other edaphic aspects. The journal emphasizes recovery of degraded lands and practical, appropriate uses of soils. Reports of biotechnological applications to land use and recovery are included. Full papers and short notes, as well as review articles and book and meeting reviews are published.