不同规格芦苇沙障生态保护成效研究

田美荣; 田雨欣; 杨伟超; 冯朝阳; 高吉喜; 王世曦

doi:10.12153/j.issn.1674-991X.20220522

不同规格芦苇沙障生态保护成效研究

doi: 10.12153/j.issn.1674-991X.20220522

1.
环境基准与风险评估国家重点实验室，中国环境科学研究院
2.
郑州大学生态与环境学院
3.
山东省人民政府人工影响天气办公室
4.
生态环境部卫星环境应用中心

基金项目: 国家重点研发计划项目(2021YFB3901104)

详细信息

作者简介:
田美荣（1981—），女，研究员，博士，主要从事生态保护与修复研究，tianmeirong007@163.com

通讯作者:
高吉喜（1964—），男，研究员，博士，主要从事环境科学与资源利用研究，gaojx168@163.com

中图分类号: X37
计量
- 文章访问数: 192
- HTML全文浏览量: 136
- PDF下载量: 27
- 被引次数: 0
出版历程
- 收稿日期: 2022-05-26
- 录用日期: 2023-02-01
- 网络出版日期: 2022-09-22

Study on conservation effectiveness of reed sand barrier with different types

1.
State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences
2.
School of Ecology and Environment, Zhengzhou University
3.
Weather Modification Office of Shandong Province
4.
Satellite Application Center for Ecology and Environment, Ministry of Ecology and Environment

摘要

摘要:
沙障是减缓地表风蚀、保护地表植被的重要措施之一，为筛选适宜呼伦湖流域沙地风沙防治的芦苇沙障设置模式，试验按照行距1、1.5、2 m的带状以及1 m×1 m、1.5 m×1.5 m、2 m×2 m的方格状共设置6种不同规格芦苇沙障，选取防风效能、表层土壤含水量、地表蒸发量、沙障内修复物种生长情况4个指标评估不同规格芦苇沙障生态保护成效。结果显示：方格状芦苇沙障生态保护成效高于带状芦苇沙障，其中方格状芦苇沙障平均防风效能、表层土壤含水量及地表蒸发量由高到低依次为1 m×1 m>1.5 m×1.5 m>2 m×2 m；对6种芦苇沙障模式内冰草〔Agropyron cristatum (L.) Gaertn.〕、披碱草(Elymus dahuricus Turcz. ex Griseb. in Ledeb.)和小叶锦鸡儿(Caragana microphylla Lam.)的植被生长情况分析显示，冰草在1 m×1 m方格状芦苇沙障生长较好。合理的沙障设置，不仅能够防风固沙，并且可减少土壤水分的流失。
- 芦苇沙障 /
- 防风效能 /
- 保护成效 /
- 沙地 /
- 呼伦湖流域
Abstract:
Sand barrier is one of the important measures to mitigate the surface wind erosion and protect the surface vegetation. In order to select the suitable mode of reed sand barrier for controlling wind and sand in Hulun Lake Basin, six types of reed sand barriers were set up including three belt sand barriers with the banded row spacing of 1 m, 1.5 m, 2 m and the square sand barriers of 1 m × 1 m, 1.5 m × 1.5 m, 2 m × 2 m. Four indexes including wind prevention efficiency, soil moisture content, surface evaporation, and the growth of ecological restoration species in sand barriers were selected to evaluate the ecological protection achievement of six types of reed sand barriers. The results showed that the ecological protection achievement of square reed sand barriers were higher than that of belt reed sand barriers. The average windbreak efficiency, soil surface moisture content and surface evaporation of square reed sand barriers from high to low were: 1 m × 1 m > 1.5 m × 1.5 m > 2 m × 2 m. The analysis of the ability vegetation growth of Agropyron cristatum (L.) Gaertn., Elymus dahuricus Turcz. ex Griseb. in Ledeb., and Caragana microphylla Lam. in the six types of reed sand barrier showed that Agropyron cristatum grew well in the 1 m×1 m square reed sand barrier. The preferred measure of sandy land control in Hulun Lake basin was the 1.0 m×1.0 m reed sand barrier planting Agropyron cristatum, which could inhibit wind speed and reduce soil moisture loss, and provide theoretical basis and practical reference for the restoration of sandy grassland in this area.
- reed sand barrier /
- windproof efficiency /
- conservation effectiveness /
- sandy land /
- Hulun Lake Basin

HTML全文

图 1 芦苇沙障测试点示意

Figure 1. Chart of reed sand barrier test points

下载: 全尺寸图片幻灯片

图 2 不同规格芦苇沙障在不同位置防风效能对比

Figure 2. Comparison of windproof efficiency of reed sand barrier with different types at different positions

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图 3 6种规格沙障表层土壤含水量随时间变化趋势

Figure 3. Changes of surface soil moisture content with time in six types of sand barrier

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图 4 地表蒸发量对比

Figure 4. Comparison of surface evaporation

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表 1 植物在不同规格沙障内生长情况比较

Table 1. Comparison of plant growth in different sand barriers

处理组	规格/m	平均株高/cm	平均出苗率/%	平均盖度/%	平均生物量/ (g/m²)
CK+A		3.00	14.03	12.10	0.06
CK+E		0.50	0.21	0.10	0.01
CK+C		2.00	0.67	0.20	0.01
F+A	1×1	4.84	41.11	35.33	0.69
	1.5×1.5	4.45	26.11	22.44	0.28
	2×2	3.83	14.22	12.23	0.09
F+E	1×1	5.47	11.80	13.57	1.09
	1.5×1.5	4.17	14.52	7.42	0.43
	2×2	3.91	31.57	9.08	0.42
F+C	1×1	3.02	12.22	3.67	0.24
	1.5×1.5	1.40	2.67	0.80	0.04
	2×2	2.08	1.78	0.53	0.03
D+A	1	3.12	12.80	11.00	0.18
	1.5	3.21	18.73	16.10	0.22
	2	3.18	21.64	18.60	0.22
D+E	1	3.73	0.35	0.40	0.02
	1.5	3.58	1.48	1.70	0.09
	2	3.63	0.17	0.20	0.01
D+C	1	1.52	0.67	0.20	0.01
	1.5	1.79	0.67	0.20	0.01
	2	0.00	0.00	0.00	0.00

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表 2 不同规格芦苇方格沙障的生态保护成效

Table 2. Wind-proof and sand-fixing ability grades of different types of reed square sand barriers

规格/m	沙漠防风效能	对近地表含水量	土壤表层蒸发量	沙障内修复物种长势
1×1	Aa	Ba	Aa	Aa
1.5×1.5	Bb	Aa	Ba	Bab
2×2	Cb	Cb	Cb	Cb
1	Aa	Aa	Aa	Aa
1.5	Bb	Ba	Ba	Ba
2	Cb	Ca	Ca	Ca
注：不同小写字母代表在0.05水平上差异显著。

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