煤矿井田区地表沉陷对植被景观的影响——以山西省晋城市东大煤矿为例

doi:10.17521/cjpe.2006.0055

摘要/Abstract

摘要：

借助地表沉陷预测模型,预测了地表沉陷状况,依据地表沉陷对景观的破坏程度划分出重度影响区和轻度影响区;在遥感及地理信息系统技术的支持下,把植被景观现状与地表沉陷影响区叠加,通过沉陷前后景观格局的变化分析,对山西省晋城市东大煤矿的生态影响进行了探索性评价研究。结果表明:1) 重度影响区地表会出现盆型、马鞍型和波浪型等塌陷或裂缝,土壤侵蚀的作用将导致土壤养分空间格局发生明显变化。塌陷或裂缝周围生境恶化,成为养分流失源,植被恢复困难;养分汇处土壤水、肥条件优越,植被演替迅速,适当的人为干扰可以加快区域生态环境的恢复步伐。2) 地表沉陷后,植被景观破碎及隔离程度严重,原有的稳定态景观格局被打破,随着地形、土壤的空间变化,植被开始新一轮发展演替。由于原先占绝对优势的退化植被类型白羊草(Bothriochloa ischemum)-百里香(Thymus mongolicus)型优势度下降,同时,大部分次优势景观的内部生态功能受影响不大,这对景观整体的生物多样性以及次优势景观类型的演替是有益的,但是,重度影响区对斑块的隔离呈直线性,这对物种迁移的障碍是明显的。因此,重视井田区的封育与引种工作,科学规划、合理布局,在此基础上,引导植被演替沿着白羊草-百里香型—白羊草-黄背草(Themeda japonica)型—灌木丛—阔叶林的方向发展是可行的。

关键词: 地表沉陷, 景观, 最大斑块指数, 景观形状指数, 凝结度指数

Abstract:

Ground subsidence and its effects on environment have been the core content of ecological and environmental assessment in coal mining area. Although there are researches on these topics, the results and methods show some uncertainties and few involves forecast analysis. This paper forecasts the status of ground subsidence using ground subsidence forecasting mathematical model and classifies the heavy or slight influencing areas based on the degree of destructions of landscape. Based on remote sensing (RS) and geographical information system (GIS), this paper overlays the existing state map of the vegetation landscape and the map of the influenced areas. The influence of mining on environment is analyzed by comparison of the landscape patterns before and after ground subsidence in Dongda Mine of Jincheng, Shanxi Province. The results showed that: 1) in heavy influencing areas, there are some collapse or crack structure such as basin, saddle and wave etc. Soil erosion leads to obvious change in spatial distribution of soil nutrients. The environment near the collapse or crack areas worsens and becomes the source of nutrient loss. It is very difficult for the vegetation to recover in these areas. In nutrient-rich areas, the vegetation succession performs rapidly. Proper artificial disturbance can accelerate the recovery paces of the regional environment. 2) After the ground subsidence, the vegetation landscape is broken up and isolated severely. With the changes of landform and soil in space, the vegetation begins to perform a new round of succession. Because the degraded vegetation type, Bothrichloa is-chaemum-Thymus mongolicus community, will decrease, and the internal ecological function of the sub-dominance landscape is not quite affected, it is helpful to biodiversity and sub-dominance landscape succession. However, there is a linear relationship between the isolation of heavy influencing areas and the resulting patches, the obstacle for species to move from one patch to another in heavy influencing areas is obvious. Therefore, we should place more emphases on environmental conservation in coal mining area. On this basis, it is feasible to guide vegetation succession along the direction of Bothrichloa ischaemum-Thymus mongolicus community-Bothrichloa ischaemum-Themeda japonica community-bush-broad-leaved forest.

Key words: Ground subsidence, RS, GIS, Landscape, Largest patch index, Landscape shape index, Patch cohesion index

全占军, 程宏, 于云江, 邹学勇. 煤矿井田区地表沉陷对植被景观的影响——以山西省晋城市东大煤矿为例. 植物生态学报, 2006, 30(3): 414-420. DOI: 10.17521/cjpe.2006.0055

QUAN Zhan-Jun, CHENG Hong, YU Yun-Jiang, ZOU Xue-Yong. ASSESSMENT OF SUBSIDENCE IMPACT ON VEGETATION LANDSCAPE IN COAL MINING AREA —A CASE STUDY OF DONGDA MINE IN JINCHENG CITY, SHANXI PROVINCE. Chinese Journal of Plant Ecology, 2006, 30(3): 414-420. DOI: 10.17521/cjpe.2006.0055

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链接本文: https://www.plant-ecology.com/CN/10.17521/cjpe.2006.0055

https://www.plant-ecology.com/CN/Y2006/V30/I3/414

图/表 5

参考文献 15

[1]	Fan YH (范英宏), Lu ZH (陆兆华), Cheng JL (程建龙), Zhou ZX (周忠轩), Wu G (吴钢) (2003). Major ecological and environmental problems and the ecological reconstruction technologies of the coal mining areas in China. Acta Ecologica Sinica (生态学报), 23,2144-2152. (in Chinese with English abstract)
[2]	Geng DM (耿殿明), Jiang FX (姜福兴) (2003). Analysis on ecological environment of mine area in China. Coal Mine Environmental Protection (煤矿环境保护), 16(6),5-10. (in Chinese)
[3]	Geng DM (耿殿明), Jiang FX (姜福兴), Zhang PZ (张朋柱) (2001). Some theoretical difficulties about sustainable development of coal mines. China Mining Magazine (中国矿业), 10(5),18-21. (in Chinese with English abstract)
[4]	Huggett RJ (1991). Climate, Earth Processes, and Earth History. Springer, Berlin, 281.
[5]	Liang M (梁明), Wang CX (王成绪) (2001). Prediction of mining subsidence in mountain area overlaid with thick loess bed. Coal Geology and Exploration (煤田地质与勘探), 29(2),44-47. (in Chinese with English abstract)
[6]	Lu L, Li X, Cheng GD (2003). Landscape evolution in the middle Heihe River Basin of north-west China during the last decade. Journal of Arid Environments, 53,395-408.
[7]	Ma XA (马祥爱), Bai ZK (白中科), Shao YH (邵月红), Zhang SH (张世海), Wu JS (吴俊松), Zhao M (赵民) (2004). Eco-environmental impact assessment on subsidence with coal mining in Loess Hilly Areas——Taking Kaiyuan Mine of Yangquan Coal Limited Company as example. Journal of Shanxi Agriculture University (山西农业大学学报), 24,47-52. (in Chinese with English abstract)
[8]	Mao HY (毛汉英), Fang CL (方创琳) (1998). Cave-in land types by coal mining and their comprehensive utilization ecological model. Acta Ecologica Sinica (生态学报), 18,449-455. (in Chinese with English abstract)
[9]	Phillips JD (1995). Biogeomorphology and landscape evolution: the problem of scale. Geomorphology, 13,337-347.
[10]	Shi QD (施群德), Zhao JF (赵建锋), Su ZJ (苏仲杰) (2000). Prospects and developments of study on fractals in mining subsidence. Journal of Engineering Geology (工程地质学报), 8,341-344. (in Chinese with English abstract)
[11]	Si SY (司双印), Zhang YB (张运备), Ma JJ (马敬杰), He LL (贺留兰), Qin SC (秦世昌) (2004). Restoring the eco-environment and sustainable economic development in collapse area of coal mines. Journal of Geological Hazards and Enironment Preservation (地质灾害与环境保护), 15(3),11-16. (in Chinese with English abstract)
[12]	Sui WH (隋枉华), Chen Q (陈奇) (1995). Simple comment on research meaning, present situation, mechanism of soil mass settlement deformation caused by coal bed mining and the way of forecast. The Chinese Journal of Geological Hazard and Control (中国地质灾害与防治学报), 6(1),1-6. (in Chinese with English abstract)
[13]	Wei CY (韦朝阳), Zhang LC (张立城), He SJ (何书金) (1997). A discussion on the eco-environmental conditions in the coal mining areas in China. Acta Geographica Sinica (地理学报), 52,300-307. (in Chinese with English abstract)
[14]	Whitney JA (2002). Landscape evolution of the five islands of south Louisiana: scientific policy and salt dome utilization and management. Geomorphology, 47,227-244.
[15]	Zhao YF (赵扬锋), Zhang HX (张华兴), Pan YS (潘一山) (2004). Numerical simulation of overlay stratums' effect to subsidence of stripe mining. Coal Mining Technology (煤矿开采), 9(3),1-3. (in Chinese with English abstract)

类型 Type			I	II			III	IV	V				VI	VII			VIII	合计 Total
面积 Area (km²)			2.33	3.03			18.32	7.76	10.14				19.85	55.56			9.28	126.27
面积比例 Percent of total(%)			1.75	2.30			13.78	5.76	7.63				15.00	41.79			6.98	94.97

类型 Type			I	II			III	IV	V				VI	VII			VIII	合计 Total
面积 Area (km²)			2.33	3.03			18.32	7.76	10.14				19.85	55.56			9.28	126.27
面积比例 Percent of total(%)			1.75	2.30			13.78	5.76	7.63				15.00	41.79			6.98	94.97

类型 Type	轻度干扰区 Slight influencing areas		重度干扰区 Heavy influencing areas
类型 Type	面积 Area (km²)	比例 Percent of total (%)	面积 Area (km²)	比例 Percent of total (%)
I	1.59	2.72	0.35	1.61
II	1.93	3.30	0.41	1.88
III	11.06	18.94	3.29	14.94
IV	2.21	3.79	0.78	3.56
V	2.60	4.45	1.14	5.16
VI	9.42	16.13	3.35	15.21
VII	26.51	45.41	11.19	50.83
VIII	3.08	5.27	1.50	6.81
合计Total	58.38	100.00	22.01	100.00

类型 Type	轻度干扰区 Slight influencing areas		重度干扰区 Heavy influencing areas
类型 Type	面积 Area (km²)	比例 Percent of total (%)	面积 Area (km²)	比例 Percent of total (%)
I	1.59	2.72	0.35	1.61
II	1.93	3.30	0.41	1.88
III	11.06	18.94	3.29	14.94
IV	2.21	3.79	0.78	3.56
V	2.60	4.45	1.14	5.16
VI	9.42	16.13	3.35	15.21
VII	26.51	45.41	11.19	50.83
VIII	3.08	5.27	1.50	6.81
合计Total	58.38	100.00	22.01	100.00

	类型 Type	最大斑块指数 Largest patch index	景观形状指数 Landscape shape index	斑块凝结指数 Patch cohesion index
沉陷前 Before ground subsidence	I	0.03	8.90	93.80
	II	0.18	11.06	96.45
	III	0.25	23.91	97.20
	IV	0.42	34.12	97.14
	V	0.55	34.21	96.58
	VI	1.05	45.68	98.39
	VII	19.48	32.10	99.88
	VIII	0.03	22.52	92.42
沉陷后 After ground subsidence	I	0.02	5.29	91.00
	II	0.03	7.47	94.52
	III	0.19	15.77	96.55
	IV	0.14	20.04	94.17
	V	0.3	19.26	89.86
	VI	0.23	31.02	97.09
	VII	2.00	23.40	99.22
	VIII	0.03	10.83	92.10