Effects of a Cattle and Sheep Dung Sand Barrier on Desertified Grassland Restoration in Alpine Area—A Case Study at Maqu County, Gansu Province

Zhao Zengxin; Tang Jinnian; Li Yinke; Wang Qi; Liu Youjun; Yang Xuemei; Yuan Hongbo; Cao Xiaotao

doi:10.13961/j.cnki.stbctb.2023.04.009

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Effects of a Cattle and Sheep Dung Sand Barrier on Desertified Grassland Restoration in Alpine Area—A Case Study at Maqu County, Gansu Province

- Effects of a Cattle and Sheep Dung Sand Barrier on Desertified Grassland Restoration in Alpine Area—A Case Study at Maqu County, Gansu Province
- Bulletin of Soiland Water Conservation Vol. 43, Issue 4, Pages: 68-76(2023)
- 作者机构：
  
  1. 甘肃农业大学资源与环境学院,甘肃,兰州,730070
  2. 甘肃民勤荒漠草地生态系统国家野外科学观测研究站/甘肃省治沙研究所,甘肃,兰州,730070
  3. 兰州文理学院旅游学院,甘肃,兰州,730000
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2023.04.009
  CLC： S157;X144
- Published：2023
- 稿件说明：
移动端阅览
Zhao Zengxin, Tang Jinnian, Li Yinke, et al. Effects of a Cattle and Sheep Dung Sand Barrier on Desertified Grassland Restoration in Alpine Area—A Case Study at Maqu County, Gansu Province[J]. Bulletin of Soiland Water Conservation, 2023, 43(4): 68-76.
DOI：

Zhao Zengxin, Tang Jinnian, Li Yinke, et al. Effects of a Cattle and Sheep Dung Sand Barrier on Desertified Grassland Restoration in Alpine Area—A Case Study at Maqu County, Gansu Province[J]. Bulletin of Soiland Water Conservation, 2023, 43(4): 68-76. DOI： 10.13961/j.cnki.stbctb.2023.04.009.

摘要

[目的

]

研究植物纤维沙障、牛羊粪沙障和牛羊粪沙障+植物纤维沙障对甘肃省玛曲县沙化草地恢复效果，为玛曲县沙化草地治理提供有效沙障。[方法

]

以玛曲县未布设沙障沙化草地为对照，比较了植物纤维沙障、牛羊粪沙障和牛羊粪沙障+植物纤维沙障布设后沙化草地植物和土壤性质的变化。[结果

]

①牛羊粪沙障和牛羊粪沙障+植物纤维沙障对植被恢复效果较好。物种数由4种均增加为11种，植物群落平均盖度由7.28%依次增加到48.21%和58.29%；植物平均高度由6.67 cm依次增长到35.17和30.70 cm；植物平均干重由4.46 g/m

依次增加到81.17和80.70 g/m

；植物平均枯死率由9.55%依次降为7.00%和6.80%。②牛羊粪沙障和牛羊粪沙障+植物纤维沙障对0—5 cm土壤养分提升显著。全氮由0.154 g/kg依次增加到0.370和0.491 g/kg;土壤碱解氮由4.78 mg/kg依次增加到13.99和19.78 mg/kg；速效磷由1.64 mg/kg依次增加到5.54和6.20 mg/kg；速效钾由21.07 mg/kg依次增加为55.37和56.90 mg/kg。[结论

]

综合考虑恢复效果、成本和降解因素等，牛羊粪沙障为玛曲县沙化草地治理较理想的沙障布设方式。

Abstract

[Objective] The effects of plant fiber sand barriers

cattle and sheep dung barriers

and sand barriers comprised of cattle and sheep dung combined with plant fiber were studied in order to create effective sand barriers for the restoration of desertified grassland in the alpine area at Maqu County

Gansu Province. [Methods] Sand barriers made of plant fiber

cattle and sheep dung

and cattle and sheep dung combined with plant fiber were installed in the alpine area at Maqu County. Plant and soil characteristics in the grassland before and after installing the sand barriers were compared. [Results] ① Sand barriers made of cattle and sheep dung

and made of cattle and sheep dung combined with plant fiber produced good effects with regard to vegetation restoration. The average plant community cover grew from 7.28% to 48.21% and 58.29%

respectively

and the number of species increased from 4 to 11. Plants grew taller

increasing from an average of 6.67 cm to 35.17 cm and 30.70 cm

respectively. Average plant dry weight increased from 4.46 g/m2 to 81.17 g/m2 and 80.70 g/m2

respectively. The plant dieback rate dropped from 9.55% to 7.0% and 6.80%

respectively; ② Cattle and sheep dung sand barriers as well as cattle and sheep dung sand barriers combined with plant fiber greatly boosted soil nutrients at the 5 cm depth. Total nitrogen increased from 0.154 g/kg to 0.370 g/kg and 0.491 g/kg

respectively. Soil alkaline hydrolyzed nitrogen rose from 4.78 mg/kg to 13.99 mg/kg and 19.78 mg/kg

respectively. Available phosphorus increased from 1.64 mg/kg to 5.54 mg/kg and 6.20 mg/kg

respectively. Available potassium increased from 21.07 mg/kg to 55.37 mg/kg and 56.90 mg/kg

respectively. [Conclusion] Considering the vegetation restoration effects

costs

and degradation factors

cattle and sheep dung sand barriers are the ideal technique for vegetation restoration of desertified grassland in alpine area of Maqu County.

关键词

Keywords

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