| 基于CATS模型的干旱荒漠露天煤矿排土场优势滞尘植物配比 |
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| 引用本文： | 刘琴,杨建英,侯健,谭锦,张明浩.基于CATS模型的干旱荒漠露天煤矿排土场优势滞尘植物配比[J].浙江农林大学学报,2022,39(4):775-782. |
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| 作者姓名： | 刘琴 杨建英 侯健 谭锦 张明浩 |
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| 作者单位： | 北京林业大学 水土保持学院，北京 100083 |
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| 基金项目： | 国家重点研发计划项目(2017YFC0504403) |
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| 摘 要： | 目的 干旱荒漠区露天矿排土场易产生沙(粉)尘，造成大气污染。基于植物功能性状模型(Community Assembly by Trait Selection，CATS模型)模拟，得到研究区排土场优势滞尘植物及物种在恢复群落中的配比，提出植被恢复策略。 方法 于2020年8月在内蒙古自治区乌海市新星煤矿排土场周围进行样方调查，测定物种水平和群落水平的性状值，并计算功能性状目标值，将植物滞尘功能和根体积作为模型的2个因子代入模型计算。 结果 植物种的根体积与单位叶面积滞尘量呈反比；群落根体积与土壤含水量呈现“U”型曲线分布；模型模拟结果表明:各物种相对多度最高的是猪毛菜Salsola collina和骆驼蓬Peganum harmala，相对多度的中位数分别为0.41和0.32。 结论 在研究区排土场以猪毛菜和骆驼蓬的相对多度比6∶4的比例播种，可发挥相当的滞尘效益，能够很好地解释植被修复过程中的一些机制性问题，为其他研究提供借鉴。图2表1参40
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| 关 键 词： | CATS模型 矿区排土场 植物功能性状 植物配比 |
| 收稿时间： | 2021-09-01 |
Ratio of dominant dust retaining plants in waste dump of desert open-pit coal mine based on CATS model |
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| LIU Qin,YANG Jianying,HOU Jian,TAN Jin,ZHANG Minghao.Ratio of dominant dust retaining plants in waste dump of desert open-pit coal mine based on CATS model[J].Journal of Zhejiang A&F University,2022,39(4):775-782. |
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| Authors: | LIU Qin YANG Jianying HOU Jian TAN Jin ZHANG Minghao |
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| Institution: | School of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, China |
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| Abstract: | Objective The dump of open-pit mine in arid desert regionis easy to produces and (powder) dust and cause air pollution. The purpose of this study is to obtain the ratio of dominant dust retaining plants and species in the restoration community based on the simulation of Community Assembly by Trait Selection (CATS) model, and put forward the vegetation restoration strategy. Method A quadrat survey was conducted around the waste dump of Wuhai Xinxing Coal Mine in Inner Mongolia Autonomous Regionin August 2020 to determine the trait values at species and community levels, calculate the target values of functional traits, and substitute the dust retention function and root volume of plants into the model as two factors. Result The root volume of plant species was inversely proportional to the dust retention per unit leaf area. The root volume and soil water content was U-shaped. The simulation results showed that the highest relative abundance of each species was Salsola collina and Peganum harmala, with amedian of 0.41 and 0.32, respectively. Conclusion To plant S. collina and P. harmala in the dumping site with the relative abundance ratio of 6 to 4 is beneficial to dust detention, which can also explain some mechanical problems in vegetation restoration and provide reference for other studies. Ch, 2 fig. 1 tab. 40 ref.] |
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