采煤沉陷区生态修复树种蒸腾特征及能量收支

徐立杰; 党晓宏; 高永; 冯亚亚; 李传福

doi:10.13961/j.cnki.stbctb.2021.06.016

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采煤沉陷区生态修复树种蒸腾特征及能量收支

试验研究

- 采煤沉陷区生态修复树种蒸腾特征及能量收支
- Transpiration Characteristics and Energy Budget of Ecological Restoration Tree Species in Coal Mining Subsidence Area
- 水土保持通报 2021年41卷第6期页码：113-118
- 作者机构：
  
  1. 内蒙古农业大学沙漠治理学院,内蒙古,呼和浩特,010018
  2. 内蒙古杭锦荒漠生态系统国家定位观测研究站,内蒙古,鄂尔多斯,017400
  3. 中央与地方共建风沙物理重点实验室,内蒙古,呼和浩特,010018
- 作者简介：
- 基金信息：
  
  内蒙古自治区科技重大专项“重点区域荒漠化过程与生态修复研究示范”（zdzx2018058）;中央引导地方科技发展专项资金：内蒙古荒漠化防治创新研究中心
- DOI：10.13961/j.cnki.stbctb.2021.06.016
  中图分类号： S718.51
- 纸质出版：2021
- 稿件说明：
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徐立杰, 党晓宏, 高永, 等. 采煤沉陷区生态修复树种蒸腾特征及能量收支[J]. 水土保持通报, 2021,41(6):113-118.

Xu Lijie, Dang Xiaohong, Gao Yong, et al. Transpiration Characteristics and Energy Budget of Ecological Restoration Tree Species in Coal Mining Subsidence Area[J]. Bulletin of Soiland Water Conservation, 2021, 41(6): 113-118.
徐立杰, 党晓宏, 高永, 等. 采煤沉陷区生态修复树种蒸腾特征及能量收支[J]. 水土保持通报, 2021,41(6):113-118. DOI： 10.13961/j.cnki.stbctb.2021.06.016.

Xu Lijie, Dang Xiaohong, Gao Yong, et al. Transpiration Characteristics and Energy Budget of Ecological Restoration Tree Species in Coal Mining Subsidence Area[J]. Bulletin of Soiland Water Conservation, 2021, 41(6): 113-118. DOI： 10.13961/j.cnki.stbctb.2021.06.016.

摘要

[目的

]

在改进蒸腾观测方法的基础上，对采煤沉陷区常见生态修复树种蒸腾特征及能量收支状况进行研究，为矿区生态修复工作中树种的选择和水分调控提供理论依据。[方法

]

选择采用“三温模型”+热红外遥感的方法在野外环境应用时的参考叶片类型，并对沙柳（Salix psammophila）、沙棘（Hippophae rhamnoides）、柠条（Caragana korshinskii）3种植物的蒸腾特征进行测定，分析其蒸腾特征和蒸腾过程中的能量收支状况。[结果

]

①绿色卡纸可以在9：00—15：00时代替烘干植物叶片作为植物蒸腾测定时的参考叶片。②沙柳、沙棘、柠条的蒸腾速率日变化规律均为单峰曲线，最高瞬时蒸腾速率分别为0.57，0.61和0.71 mm/h，日蒸腾量分别为3.24，3.27和3.80 mm。③沙柳的h

值（植物蒸腾扩散系数，用于评价植物水分亏缺状况）日变化规律为“单峰型”，柠条和沙棘则为“双峰型”，h

日均值从大到小依次为：沙柳（0.18）>沙棘（0.11）>柠条（0.03）。④沙柳、柠条的显热通量（H）在15：00时小于0。[结论

]

沙柳、沙棘、柠条均可以通过冷岛效应向周围环境吸热用于蒸腾作用，降低环境温度。沙柳适合栽植于地势平坦，水分较为充足的地区。沙棘和柠条可以通过飞播的方式在人力难以到达和水分状况较差的地区进行生态修复。

Abstract

[Objective] Based on the improved transpiration observation method

the transpiration characteristics and energy budget of common ecological restoration tree species in coal mining subsidence areas were studied in order to provide a theoretical basis for the selection of tree species and water regulation in ecological restoration in mining areas.[Methods] The reference leaf type was selected

and transpiration of Salix psammophila

Hippophae rhamnoides and Caragana korshinskii were determined by "three-temperature model" + thermal infrared remote sensing method in the field environment. The transpiration characteristics and the energy budget during the transpiration process were analyzed.[Results] ① Green cardboard could replace dried plant leaves at 9:00-15:00 as a reference leaf for plant transpiration determination. ② The diurnal changes of transpiration rate of Salix psammophila

Hippophae rhamnoides

and Caragana korshinskii were all single-peak curves. The highest instantaneous transpiration rate were 0.57

0.61

0.71 mm/h

respectively. And the daily transpiration rate was 3.24

3.27

3.80 mm

respectively. ③ The daily variation of the hat(which meant plant transpiration diffusion coefficient

used to evaluate plant water deficit status) value of Hippophae rhamnoides was "single-peak type"

while that of Caragana korshinskii and Salix psammophila was a "double-peak type". The daily average value of transpiration diffusion coefficient was in descending order:Salix psammophila (0.18)> Hippophae rhamnoides (0.11)> Caragana korshinskii (0.03). ④ The sensible heat flux (H) of Salix psammophila

and Caragana korshinskii were less than 0 at 15:00.[Conclusion] Salix psammophila

Hippophae rhamnoides and Caragana korshinskii can all absorb heat from the surrounding environment through the cold island effect for transpiration and reduce the environmental temperature. Salix psammophila is suitable for planting in areas with flat terrain and abundant water. Hippophae rhamnoides and Caragana korshinskii can be used for ecological restoration by aerial seeding in areas hard to reach by humans and with water deficit.

关键词

Keywords

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