| 不同带间距柠条锦鸡儿防护林防风效应与带间植被组成 |
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| 引用本文： | 闫敏,左合君,杨阳,刘宇胜,郭婧宇,王强,李钢铁.不同带间距柠条锦鸡儿防护林防风效应与带间植被组成[J].水土保持研究,2018,25(4):139-145. |
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| 作者姓名： | 闫敏 左合君 杨阳 刘宇胜 郭婧宇 王强 李钢铁 |
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| 作者单位： | 内蒙古农业大学 沙漠治理学院 内蒙古风沙物理与防沙治沙工程重点实验室, 呼和浩特 010011 |
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| 摘 要： | 通过对四子王旗不同带间距（4 m，6 m，8 m）柠条锦鸡儿防护林风速流场与带间植被的测定，研究了其防风效果与带间植被组成情况。结果表明:（1）在不同对照风速条件下，不同带间距柠条锦鸡儿防护林均对风速具有减弱作用，并且在带间出现了风影区与加速区。（2）在距地面0~2 m高度处，林带防风效果为4 m > 6 m > 8 m，8 m宽林带对低风速（6~8 m/s）可以进行有效防护，对高风速（10 m/s）也可以控制在起沙风速以下，且风速经过4条林带的阻挡后减弱效果明显。（3）8 m宽林带间出现了以百里香、狗尾草以及蒿属为主的草本群落，与地带性草本群落（羊草+冷蒿）较为接近，恢复效果明显。确定的带宽与林带数量可为今后柠条锦鸡儿防风阻沙林建设以及多树种带状混交配置模式的确定提供重要科学依据。
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| 关 键 词： | 柠条锦鸡儿 行带式防护林 防风效应 带间植被 自然修复 |
Different Distance Caragana korshinskii Protection Forest for Wind Reducing Effect and Inter-Type Vegetation |
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| YAN Min,ZUO Hejun,YANG Yang,LIU Yusheng,GUO Jingyu,WANG Qiang,LI Gangtie.Different Distance Caragana korshinskii Protection Forest for Wind Reducing Effect and Inter-Type Vegetation[J].Research of Soil and Water Conservation,2018,25(4):139-145. |
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| Authors: | YAN Min ZUO Hejun YANG Yang LIU Yusheng GUO Jingyu WANG Qiang LI Gangtie |
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| Institution: | Key Laboratory of Wind Blown Sand Physics and Sand Control Engineering of Inner Mongolia Inner Mongolia, College of Desert Control Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010011, China |
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| Abstract: | We measured different spacing shelter forest wind velocity flow field and inter-type vegetation of Caragana korshinskii in Siziwang Banner, and studied the wind reducing effect and the form of inter-type vegetation. The results show that: (1) Caragana korshinskii shelter forest has the reduction impact on wind speed, as well appeared the wind shadow area and accelerating area all in different contrast of wind speeds; (2) the wind protection effects decreased in the order: 4 m > 6 m > 8 m in the height of 0 to 2 meters from the ground, and 8 meters wide belt-type not only has an effect on low wind speed (6~8 m/s), but also can control the high wind speed (10 m/s) by four belt blocks; (3) Thymus mongolicus, Setaria viridis and Artemisia herb community appear in 8 meters wide forest, which is close to the zonality herb community (Leymus chinensis and Artemisia frigida) and shows that its recovery effect is obvious. This study ensures that the bandwidth and the amount of forest can provide survive for the future construction of wind resistance forest belt mixed multiple tree species and provide important scientific basis for the confirmation of the configuration mode. |
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| Keywords: | Caragana korshinskiiCaragana korshinskii belt-type protection forest wind reducing effect inter-type vegetation natural recovery |
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