短期恢复下高寒矿区煤矸石山土壤变化特征研究

doi:10.11686/cyxb2017350

摘要/Abstract

摘要： 植物-土壤的相互作用是生态恢复学的主要研究方向之一,明确植被恢复对土壤性质的影响程度,对于合理设计人工恢复措施等意义重大。本研究通过在高寒矿区煤矸石山人工种植垂穗披碱草、冷地早熟禾、星星草,研究不同恢复年限下土壤氮、磷、钾、有机质、pH值、植被盖度变化特征及各指标之间的相关性。结果表明,随着恢复时间的延长,土壤全氮含量与恢复当年相比差异不显著,土壤全磷含量逐步增加,土壤全钾含量逐步下降。恢复4年与恢复当年相比,土壤全磷含量增加了17.39%(P<0.05)、土壤全钾下降了12.77%(P<0.05)。土壤碱解氮、速效磷、速效钾含量均显著下降,恢复4年与恢复当年相比分别下降了49.68%(P<0.05)、66.07%(P<0.05)、18.67%(P<0.05)。与恢复当年相比,恢复2和4年后土壤有机质含量分别提高了7.92%(P<0.05)、43.02%(P<0.05),增加趋势明显。pH值随着恢复时间的延长逐步增加,土壤由酸性逐步向中性过度。人工建植2、4年后盖度未发生明显变化。相关性分析表明,除全氮含量以外,绝大部分土壤营养元素之间相关性显著,植被盖度与土壤pH值之间呈负相关。结合当前研究结果,在高寒矿区煤矸石山人工建植过程中,需及时补充速效肥料,以满足地上植物生长需求。

关键词: 高寒矿区, 种植年限, 煤矸石山, 土壤特征

Abstract: Studies on plant-soil interactions are important for restoration ecology, and are of great significance when designing artificial restoration methods because they can indicate the extent to which vegetation restoration affects soil properties. In this study, we focused on Elymus nutans, Poa crymophila, and Puccinellia tenuiflora growing on coal gob piles in an alpine coal mining area, and monitored the variations in soil nitrogen, phosphorus, potassium, organic matter, pH value, vegetation coverage, and correlations between those indicators at different times after restoration. The main results were as follows: Soil total nitrogen did not significantly change over time but soil total phosphorus increased by 17.39% (P<0.05) and soil total potassium decreased by 12.77% (P<0.05) after 4 years of restoration. Soil available nitrogen, soil available phosphorus, and soil available potassium decreased significantly by 49.68% (P<0.05), 66.07% (P<0.05), and 18.67% (P<0.05), respectively, in the first 4 years of restoration. Soil organic matter content increased significantly by 7.92% (P<0.05) and 43.02% (P<0.05) after 2 and 4 years restoration, respectively. The soil pH increased as a result of the slow transition from acidic to neutral soil. Vegetation coverage showed no significant variation after 2 and 4 years of restoration. There were significant correlations among the soil nutrient elements, except for soil total nitrogen. There was a significant negative correlation between plant coverage and soil pH. Based on these results, a key factor for the ecological restoration of coal gob piles is to supply available nutrients in a timely manner to satisfy the requirements for plant growth.

Key words: alpine coal mining area, cultivation period, coal gob piles, soil properties

杨鑫光, 李希来, 金立群, 孙华方. 短期恢复下高寒矿区煤矸石山土壤变化特征研究[J]. 草业学报, 2018, 27(8): 30-38.

YANG Xin-guang, LI Xi-lai, JIN Li-qun, SUN Hua-fang. Changes in soil properties of coal mine spoils in an alpine coal mining area after short-term restoration[J]. Acta Prataculturae Sinica, 2018, 27(8): 30-38.

参考文献

[1] Yang Q X, Zhao B Q, Guo D G. A review on vegetation restoration of opencast coal mine areas in northern China. Chinese Journal of Ecology, 2015, 34(4): 1152-1157.
杨勤学, 赵冰清, 郭东罡. 中国北方露天煤矿区植被恢复研究进展. 生态学杂志, 2015, 34(4): 1152-1157.
[2] Huang L, Zhang P, Hu Y G, et al . Vegetation and soil restoration in refuse dumps from open pit coal mines. Ecological Engineering, 2016, 94: 638-646.
[3] Singh A N, Raghubanshi A S, Singh J S. Comparative performance and restoration potential of two Albizia species planted on mine spoil in a dry tropical region, India. Ecological Engineering, 2004, 22: 123-140.
[4] Corbett E A, Anderson R C, Rodgers C S. Prairie revegetation of a strip mine in Illinois: fifteen years after establishment. Restoration Ecology, 1996, 4(4): 346-354.
[5] Agus C, Putra P B, Faridah E, et al . Organic carbon stock and their dynamics in rehabilitation ecosystem areas of post open coal mining at tropical region. Procedia Engineering, 2016, 159: 329-337.
[6] Ahirwal J, Maiti S K, Reddy M S. Development of carbon, nitrogen and phosphate stocks of reclaimed coal mine soil within 8 years after forestation with Prosopis juliflora (Sw.) Dc. Catena, 2017, 156: 42-50.
[7] Xia H P, Cai X A. Ecological restoration technologies for mined lands: a review. Chinese Journal of Applied Ecology, 2002, 13(11): 1471-1477.
夏汉平, 蔡锡安. 采矿地的生态恢复技术. 应用生态学报, 2002, 13(11): 1471-1477.
[8] Wang J J, He L P, Meng G T, et al . Evolution of soil properties during revegetation of Kunyang phosphate mine wasteland. Guangdong Agricultural Sciences, 2015, 21: 55-62.
汪俊珺, 和丽萍, 孟广涛, 等. 昆阳磷矿废弃地植被恢复过程中土壤性状演变概述. 广东农业科学, 2015, 21: 55-62.
[9] Liu X Y, Bai Z K, Zhou W, et al . Changes in soil properties in the soil profile after mining and reclamation in an opencast coal mine on the Loess Plateau, China. Ecological Engineering, 2017, 98: 228-239.
[10] Kumar S, Maiti S K, Chaudhuri S. Soil development in 2-21 years old coalmine reclaimed spoil with trees: a case study from Sonepur-Bazari opencast project, Raniganj Coalfield, India. Ecological Engineering, 2015, 84: 311-324.
[11] Kovel C G F D, Mierlo A E M V, Wilms Y J O, et al . Carbon and nitrogen in soil and vegetation at sites differing in successional age. Plant Ecology, 2000, 149: 43-50.
[12] Wang J M, Yang R X, Bai Z K. Succession law and model of reclaimed soil quality of opencast coal mine dump in grassland. Transactions of the Chinese Society of Agricultural Engineering, 2012, 28(14): 229-235.
王金满, 杨睿璇, 白中科. 草原区露天煤矿排土场复垦土壤质量演替规律与模型. 农业工程学报, 2012, 28(14): 229-235.
[13] Zhao Z Q, Shahrour I, Bai Z K, et al . Soils development in opencast coal mine spoils reclaimed for 1-13 years in the West-Northern Loess Plateau of China. European Journal of Soil Biology, 2013, 55: 40-46.
[14] Li S Q, Yang B S, Wu D M. Community succession analysis of naturally colonized plants on coal gob piles in Shanxi mining areas, China. Water, Air, & Soil Pollution, 2008, 193: 211-228.
[15] Sever H, Makineci E. Soil organic carbon and nitrogen accumulation on coal mine spoils reclaimed with maritime pine ( Pinus pinaster Aiton) in Agaclie-Istanbul. Environmental Monitoring and Assessment, 2009, 155: 273-280.
[16] Li J, Sheng Y, Chen J, et al . Modeling the distribution of permafrost along a transportation corridor from Cetar to Muri in Qinghai Province. 2010, 29(9): 1100-1106.
李静, 盛煜, 陈继, 等. 青海省柴达尔—木里地区道路沿线多年冻土分布模拟. 地理科学进展, 2010, 29(9): 1100-1106.
[17] Han J, Zhou W, Guo P. Research on dynamic change of land use in Qinghai-Tibetan Plateau mine area-a case study of Juhugeng mine area. Mine Surveying, 2017, 45(2): 108-113.
韩瑾, 周伟, 郭平. 青藏高原矿区土地利用动态变化研究—以青海省聚乎更矿区为例. 矿山测量, 2017, 45(2): 108-113.
[18] Lu R K. Methods of soil and agrochemical analysis. Beijing: China Agricultural Science and Technology Press, 1999.
鲁如坤. 土壤农业化学分析方法. 北京: 中国农业科技出版社, 1999.
[19] Tao Y, Liu Y B, Wu G L, et al . Regional-scale ecological stoichiometric characteristics and spatial distribution patterns of key elements in surface soils in the Junggar desert, China. Acta Prataculturae Sinica, 2016, 25(7): 13-23.
陶冶, 刘耀斌, 吴甘霖, 等. 准噶尔荒漠区域尺度浅层土壤化学计量特征及其空间分布格局. 草业学报, 2016, 25(7): 13-23.
[20] Hu Y G, Zhang P, Zhao Y, et al . Effects of various vegetation patterns on soil nutrients recovery in Heidaigou coal mine. Pratacultural Science, 2015, 32(10): 1561-1568.
胡宜刚, 张鹏, 赵洋, 等. 植被配置对黑岱沟露天煤矿区土壤养分恢复的影响. 草业科学, 2015, 32(10): 1561-1568.
[21] Gong J, Chen L D, Fu B J, et al . Effects of vegetation restoration on soil nutrient in a small catchment in Hilly Loess area. Journal of Soil and Water Conservation, 2005, 19(1): 93-96.
巩杰, 陈利顶, 傅伯杰, 等. 黄土丘陵区小流域植被恢复的土壤养分效应研究. 水土保持学报, 2005, 19(1): 93-96.
[22] Qin C, He B H, Jiang X J. Soil nutrient characteristics of different land-use types in the Three Gorges Reservoir. Acta Prataculturae Sinica, 2016, 25(9): 10-19.
秦川, 何丙辉, 蒋先军. 三峡库区不同土地利用方式下土壤养分含量特征研究. 草业学报, 2016, 25(9): 10-19.
[23] Mukhopadhyay S, Masto R E, Yadav A, et al . Soil quality index for evaluation of reclaimed coal mine spoil. Science of the Total Environment, 2016, 542: 540-550.
[24] Fan W H, Li H F, Bai Z K. The research of the soil fertility changes in Loess area large opencast coal mine’s different reclamation models and reclamation years—taking Pingshuo ATB opencast coal mine as example. Journal of Shanxi Agricultural University, 2006, 26(4): 313-316.
樊文华, 李慧峰, 白中科. 黄土区大型露天煤矿不同复垦模式和年限下土壤肥力的变化—以平朔安太堡露天煤矿为例. 山西农业大学学报, 2006, 26(4): 313-316.
[25] Tripathi N, Singh R S, Hills C D. Soil carbon development in rejuvenated Indian coal mine spoil. Ecological Engineering, 2016, 90: 482-490.
[26] Shrestha R K, Lal R. Changes in physical and chemical properties of soil after surface mining and reclamation. Geoderma, 2011, 161: 168-176.
[27] Guo N. Study on the properties of different restoration models in abandoned areas of a coal mine. Environmental Engineering, 2016, 34: 1039-1043, 1048.
郭楠. 煤矿废弃地不同修复模式下土壤理化性质的变化. 环境工程, 2016, 34: 1039-1043, 1048.
[28] Li P F, Zhang X C, Zhu S J, et al . Effects of vegetation restoration on soil properties in Heidaigou mine dump. Bulletin of Soil and Water Conservation, 2015, 35(5): 64-70.
李鹏飞, 张兴昌, 朱首军, 等. 植被恢复对黑岱沟矿区排土场土壤性质的影响. 水土保持通报, 2015, 35(5): 64-70.
[29] Yang Y, Wang L Y. Study on the law of natural vegetation restoration in coal waste piles of various ages. Journal of Green Science and Technology, 2013, 6: 12-15.
杨燕, 王丽艳. 不同排矸年限矸石山自然植被恢复规律研究. 绿色科技, 2013, 6: 12-15.
[30] Bauman J M, Cochran C, Chapman J, et al . Plant community development following restoration treatments on a legacy reclaimed mine site. Ecological Engineering, 2015, 83: 521-528.
[31] Wang P F, Jia L T, Du J J, et al . Improvement of soil quality by Chinese dwarf cherry cultivation in the Loess Plateau steep hill region. Acta Prataculturae Sinica, 2017, 26(3): 65-74.
王鹏飞, 贾璐婷, 杜俊杰, 等. 黄土丘陵沟壑区欧李栽植对土壤质量改良作用的评价. 草业学报, 2017, 26(3): 65-74.