四川农业大学资源学院,成都,611130
[ "辛志远(1991-),男,博士研究生,主要从事土地生态学研究。E-mail:295046116@qq.com" ]
纸质出版:2020
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辛志远, 夏建国. 瀑布沟水库干热河谷消落带土壤氮时空分布特征[J]. 水土保持学报, 2020,34(2):181-187.
XIN Zhiyuan, XIA Jianguo. Spatial and Temporal Distribution Characteristics of Soil Nitrogen of the Dry-hot Valley in the Hydro-fluctuation Belt of the Pubugou Reservoir[J]. 2020, 34(2): 181-187.
辛志远, 夏建国. 瀑布沟水库干热河谷消落带土壤氮时空分布特征[J]. 水土保持学报, 2020,34(2):181-187. DOI: 10.13870/j.cnki.stbcxb.2020.02.026.
XIN Zhiyuan, XIA Jianguo. Spatial and Temporal Distribution Characteristics of Soil Nitrogen of the Dry-hot Valley in the Hydro-fluctuation Belt of the Pubugou Reservoir[J]. 2020, 34(2): 181-187. DOI: 10.13870/j.cnki.stbcxb.2020.02.026.
以瀑布沟水库消落带土壤为研究对象,以海拔、土地利用与土地覆盖(LULC)、地形与时间为影响因子,对消落带0—40 cm土壤进行采样。采样时间分别为2017年4月25日、2017年7月5日和2018年4月25日,从时间上探讨了消落带雨热同期的夏季与1年轮回对土壤全氮与碱解氮含量的影响。结果表明:(1)消落带全氮和碱解氮含量随土层深度的增加而降低。(2)消落带低海拔地区全氮和碱解氮含量高于高海拔地区。(3)消落带全氮和碱解氮含量平均值大小为淤泥 > 草地 > 旱地 > 裸地。(4)消落带全氮和碱解氮含量与地形因子LS值呈反比。(5)夏季采集的土壤样本全氮与碱解氮含量显著低于2次4月采集的样本。从时间和空间上解释瀑布沟消落带土壤全氮与碱解氮含量的分布特征,为瀑布沟消落带的生态环境治理提供科学的数据支撑。
In this paper
the 0-40 cm soil in the hydro-fluctuation belt of the Pubugou reservoir was collected in the study area according to different land use and land cover (LULC)
elevation
topography and time. The sampling time was April 25
2017
July 5
2017 and April 25
2018
the influence of summer and annual cycle on soil total nitrogen and alkali-hydrolyzed nitrogen content was analyzed. The results showed that:(1) The contents of total nitrogen and alkali-hydrolyzed nitrogen decreased with the increase of soil depth. (2) The contents of soil total nitrogen and alkali-hydrolyzed nitrogen in low altitude area was higher than that in high altitude area. (3) The average contents of soil total nitrogen and alkali-hydrolyzed nitrogen was:sludge > grassland > dry land > bare land. (4) The contents of soil total nitrogen and alkali-hydrolyzed nitrogen was inversely proportional to the terrain factor LS. (5) The contents of total nitrogen and alkali-hydrolyzed nitrogen in soil samples collected in summer were significantly lower than that in April. This study explored the distribution characteristics of soil total nitrogen and alkali-hydrolyzable nitrogen contents in the hydro-fluctuation belt of the Pubugou reservoir from time and space
which could provide scientific data support for the ecological environment management of the Pubugou reservoir.
程瑞梅,刘泽彬,肖文发,等.三峡库区典型消落带土壤化学性质变化[J].林业科学,2017,53(2):19-25.
郑海金,杨洁,谢颂华.我国水库消落带研究概况[J].中国水土保持,2010(6):26-29.
吕凤玲,欧阳炜,宋艳暾,等.狗牙根与空心莲对水库消落带土壤氮磷释放影响的模拟[J].水土保持学报,2019,33(3):240-245,253.
程芳,丁帅,刘素美,等.三峡库区及其下游溶解氧化亚氮(N
2
O)分布和释放[J].环境科学,2019,40(9):4230-4237.
秦纪洪,黄雪菊,陈蓓,等.干湿交替格局对川西南干热河谷土壤碳氮释放的影响[J].水土保持学报,2016,30(3):250-254.
廖洪凯,龙健,李娟,等.西南地区喀斯特干热河谷地带不同植被类型下小生境土壤碳氮分布特征[J].土壤,2012,44(3):421-428.
康义.三峡库区消落带土壤理化性质和植被动态变化研究[D].北京:中国林业科学研究院,2010.
王绍强,刘纪远.土壤碳蓄积量变化的影响因素研究现状[J].地球科学进展,2002,17(4):528-534.
罗由林,李启权,王昌全,等.川中丘陵县域土壤碳氮比空间变异特征及其影响因素[J].应用生态学报,2015,26(1):177-185.
林俊杰,张帅,刘丹,等.季节性温度升高对落干期消落带土壤氮矿化影响[J].环境科学,2016,37(2):697-702.
Mccool D K, Foster G R, Mutchler C K. Revised slope length factor for the Universal Soil Loss Equation[J].Transactions of the American Society of Agricultural Engineers,1989,32(1):1571-1576.
Liu B Y, Nearing M A, Risse L M. Slope gradient effects on soil loss for steep slopes[J].Transactions of the ASAE,1994,37(6):1835-1840.
简尊吉,裴顺祥,郭泉水,等.三峡水库峡谷地貌区消落带土壤氮磷钾、有机质含量和pH值的时空动态[J].应用生态学报,2017,28(9):2778-2786.
沈雅飞,王娜,刘泽彬,等.三峡库区消落带土壤化学性质变化[J].水土保持学报,2016,30(3):190-195.
郭燕,程瑞梅,肖文发,等.三峡库区消落带土壤化学性质年际变化特征[J].林业科学,2019,55(4):22-30.
辛志远,王昌全,申亚珍,等.水基包衣控释掺混肥料一次性施用对单季稻氮素利用的影响[J].农业环境科学学报,2016,35(1):109-114.
赵宁,张洪轩,王若梦,等.放牧对若尔盖高寒草甸土壤氮矿化及其温度敏感性的影响[J].生态学报,2014,34(15):4234-4241.
宫兆宁,李洪,阿多.官厅水库消落带土壤有机质空间分布特征[J].生态学报,2017,37(24):8336-8347.
谭波.三峡库区消落带湿地土壤碳氮的分布研究[D].重庆:西南大学,2011.
李龙,姚云峰,秦富仓,等.赤峰市小流域地形因子对土壤有机碳密度的影响[J].中国水土保持,2014(3):43-46.
王婷婷.不同烘干温度对森林土壤有机碳含量测定的影响[J].林业科技,2016,41(3):24-26.
赵小波.汉源瀑布沟水电站消落区氮释放模拟研究[D].成都:四川农业大学,2011.
仲雨猛.汉源瀑布沟水电站消落区磷释放特征及风险识别[D].成都:四川农业大学,2010.
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