[1]刘孝阳,周伟,白中科,等.平朔矿区露天煤矿排土场复垦类型及微地形对土壤养分的影响[J].水土保持研究,2016,23(03):6-12.
　LIU Xiaoyang,ZHOU Wei,BAI Zhongke,et al.Influences of Reclamation Types and Microtopography on Soil Nutrient in Opencast Coal Mine Dump of Pingshuo Mining Area[J].Research of Soil and Water Conservation,2016,23(03):6-12.
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平朔矿区露天煤矿排土场复垦类型及微地形对土壤养分的影响

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 23 期数: 2016年03期 页码: 6-12 栏目: 出版日期: 2016-06-28
Title:
Influences of Reclamation Types and Microtopography on Soil Nutrient in Opencast Coal Mine Dump of Pingshuo Mining Area
作者:
刘孝阳1, 周伟1,2, 白中科1,2, 杨柯1,3,4
1. 中国地质大学(北京), 北京 100083;
2. 国土资源部土地整治重点实验室, 北京 100035;
3. 中国地质科学院 地球表层碳-汞地球化学循环重点实验室, 河北 廊坊 065000;
4. 中国地质科学院 地球物理地球化学勘查研究所, 河北 廊坊 065000
Author(s):
LIU Xiaoyang1, ZHOU Wei1,2, BAI Zhongke1,2, YANG Ke1,3,4
1. China University of Geosciences(Beijing), Beijing 100083, China;
2. Key Laboratory of Land Consolidation and Rehabilitation, Ministry of Land and Resources, Beijing 100083, China;
3. Key Laboratory of Geochemical Cycling of Carbon and Mercury in the Earth’s Critical Zone, Chinese Academy of Geological Sciences, Langfang, Hebei 065000, China;
4. Institute of Geophysical and Geochemical Exploration, Chinese Academy of Geological Sciences, Langfang, Hebei 065000, China
关键词:
露天煤矿; 排土场; 复垦; 土壤养分; 复垦类型; 微地形
Keywords:
opencast coal mine; mine dump; land reclamation; soil nutrient; reclamation type; microtopography
分类号:
S158.3
摘要:
研究土地复垦类型及微地形对土壤养分的影响对于指导土地复垦实践，控制复垦土地水土流失等具有重要的理论意义和实际应用价值。以平朔露天煤矿排土场为例，借助数理统计方法分析评价复垦类型与微地形因子（高程、坡度、坡向）对土壤有机碳、全氮、全磷、有效磷及速效钾含量的影响。结果表明：（1）复垦类型对各项土壤养分含量影响较为显著，不同的复垦类型中，各项土壤养分含量排序均为耕地 > 林地 > 草地；其中，土壤有机碳、全氮、全磷及速效钾含量，耕地分别为草地的2.15～2.68倍，林地的1.48～1.78倍，对于土壤有效磷，耕地中的含量为71.24 mg/kg，为草地的11倍，林地的4倍；（2）坡度与土壤养分含量之间存在显著的相关性（p < 0.05），而高程、坡向与土壤养分含量的相关性较弱，表明排土场复垦区土壤养分受坡度影响较大，而受高程与坡向的影响较小；（3）复垦类型与坡度的交互作用对土壤养分含量产生一定的影响：同一复垦类型的不同坡度的土地养分含量存在差异，耕地的土壤养分含量随着坡度的增大在降低；同一坡度，不同的复垦类型条件下，土壤养分差异显著，总体趋势为耕地 > 林地 > 草地。
Abstract:
Study of the impacts of reclamation type and microtopography on soil nutrient is helpful to guide the executive of land reclamation, and it also has great significance with respect to both theory and execution for controlling soil erosion of reclaimed land. Selecting the reclaimed land in Pingshuo opencast coal mine dump as the study area, we estimate the effects of reclamation types and the microtopographic factors (elevation, slope, aspect) on soil organic carbon, total nitrogen, total phosphorus, available phosphorus and available potassium using mathematical statistics method. The results show that: (1) reclamation types have the significant effect on the soil nutrient contents in different reclamation types, the contents of soil nutrients decrease in the order: farmland > woodland > grassland, the contents of soil organic carbon, total nitrogen, total phosphorus and available potassium in farmland are 2.15～2.68 times of the grassland, are 1.48～1.78 times as much as woodland. Content of available phosphorus in farmland is 71.24 mg/kg, being 11 times of grassland, 4 times of woodland; (2) there is a significant correlation between slope steepness and soil nutrient content at 0.05 level, while elevation and aspect have weaker correlation with soil nutrients, suggesting that soil nutrients are greatly influenced by slope, but the influence of elevation and slope direction is small; (3) the interaction between reclamation types and slope has effect on soil nutrient to certain extent, with the same reclamation type, soil nutrient content differs in different slopes, the farmland slope’s increase leads to the decrease of soil nutrient content; with the same slope, different reclamation types have significant differences in soil nutrient contents, the general trend of soil nutrient content follows the order: farmland > woodland > grassland.

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备注/Memo

收稿日期:2015-10-23;改回日期:2015-11-27。
基金项目:国家自然科学基金（41571508）；中国地质调查局地质调查项目经费（12120113002600）
作者简介:刘孝阳(1989-),男,山东省临沂人,博士研究生,研究方向为土地整理复垦、资源环境遥感。E-mail:liuxiaoyangsd@163.com
通讯作者:周伟(1974-),男,甘肃省会宁人,博士,教授,主要从事矿区土地复垦与土地节约集约利用等方面的研究。E-mail:zhouw@cugb.edu.cn

更新日期/Last Update: 1900-01-01