土地整治工程对土壤碳固持的影响
|
摘要
为了探求土地整治工程对土壤碳固持的效应,分析在改善土地利用形式和条件的同时,对生态环境效应的影响等。本研究开展了盐碱地、风沙地和黄土废弃宅基地等3类土地整治工程对土壤碳固持的作用和影响研究。结果表明,盐碱地、风沙地和废弃宅基地等3类土地整治类型土壤剖面总碳含量均得到提高;风沙地、废弃宅基地整治类型,土壤有机碳含量的变化显著影响土壤剖面总碳含量;而盐碱地整治类型,无机碳含量的变化显著影响土壤剖面总碳含量。3类整治类型不同程度地促使0~100 cm土壤剖面碳密度的提升;盐碱地、风沙地整治类型土壤剖面上的总碳含量和总碳密度变化趋势较一致;废弃宅基地整治类型因土壤容重变化较大,土壤剖面上的土壤总碳含量与总碳密度变化趋势不一致。由此可以得出,土地整治对增加农田土壤碳库容量有着重要意义,研究不同类型土地整治对土壤碳固持的影响有助于精确评估土壤碳库的总储量。
In order To explore the effect of land remediation engineering on soil carbon fixation and ecological environment,this paper analyzed the impacts on the eco-environment effects while improving the land use and patterns conditions. In This study,the effect and functions of three types of land remediation including saline soil,sandy land and loess abandoned house base on soil carbon fixation. The results showed that the total carbon content of the soil profile of these three types of land reconsolidation types was all improved. The changes of soil organic carbon content in sandy land and abandoned house base significantly affected the total carbon content of soil profile.The changes of inorganic carbon content in saline land significantly affected the total carbon content of soil profile.The three types of remediation made the carbon density of 0 ~ 100 cm soil profile improved in different degree. The change trend of total carbon content and total carbon density in saline soil and sandy land remediation was consistent. Because of the soil bulk density in waste house base,the soil carbon content in the soil profile was not consistent with the changes of the total carbon density. It can be concluded that land remediation is of great significance to increase the soil carbon storage capacity of farmland. It is helpful to study the effect of different types of land remediation on soil carbon fixation to evaluate the total stock of soil carbon pool accurately.
In order To explore the effect of land remediation engineering on soil carbon fixation and ecological environment,this paper analyzed the impacts on the eco-environment effects while improving the land use and patterns conditions. In This study,the effect and functions of three types of land remediation including saline soil,sandy land and loess abandoned house base on soil carbon fixation. The results showed that the total carbon content of the soil profile of these three types of land reconsolidation types was all improved. The changes of soil organic carbon content in sandy land and abandoned house base significantly affected the total carbon content of soil profile.The changes of inorganic carbon content in saline land significantly affected the total carbon content of soil profile.The three types of remediation made the carbon density of 0 ~ 100 cm soil profile improved in different degree. The change trend of total carbon content and total carbon density in saline soil and sandy land remediation was consistent. Because of the soil bulk density in waste house base,the soil carbon content in the soil profile was not consistent with the changes of the total carbon density. It can be concluded that land remediation is of great significance to increase the soil carbon storage capacity of farmland. It is helpful to study the effect of different types of land remediation on soil carbon fixation to evaluate the total stock of soil carbon pool accurately.
引文
[1]Post W M,Izaurralde R C,Mann L K,et al.Montoring and verifying changes of organic carbon in soil[J].Climatic Change,2001,51(1):73-99.
[2]Houghton R A.The annual net flux of carbon to the atmosphere from changes in land use 1850—1990[J].Tellus,1999,51(2):299-313.
[3]王瑷玲,赵庚星,李占军.土地整理项目后综合评价研究[J].农业工程学报,2006,22(4):58-61.
[4]叶艳妹,吴次芳.土地整理对土壤性状的影响及其重建技术和工艺研究[J].浙江大学学报(农业与生命科学版),2002,28(3):267-271.
[5]马超群,刘铁铭,杨梅焕.高陵县土地整理中新增耕地土壤养分现状研究[J].西北农林科技大学学报(自然科学版),2010,38(5):175-180.
[6]孟会生,王静,郭建奎,等.黄土区土地整理压实土壤物理性状的初步研究[J].中国农学通报,2009,25(24):549-552.
[7]张雯雯,李新举,陈丽丽,等.泰安丘陵地区土地整理项目区土壤质量时空变异研究[J].安全与环境学报,2007,7(6):61-64.
[8]潘根兴,赵其国.我国农田土壤碳库演变研究:全球变化和国家粮食安全[J].地球科学进展,2005,20(4):384-393.
[9]丁雪丽,韩晓增,乔云发,等.农田土壤有机碳固存的主要影响因子及其稳定机制[J].土壤通报,2012,43(3):737-744.
[10]黄耀,孙文娟,张稳,等.中国陆地生态系统土壤有机碳变化研究进展[J].中国科学(生命科学),2010,40(7):577-586.
[11]韩冰,王效科,逯非,等.中国农田土壤生态系统固碳现状和潜力[J].生态学报,2008,28(2):612-619.
[12]谭梦,黄贤金,钟太洋,等.土地整理对农田土壤碳含量的影响[J].农业工程学报,2011,27(8):324-329.
[13]罗明,张惠远.土地整理及其生态环境影响综述[J].资源科学,2002,24(2):60-63.
[14]祖元刚,李冉,王文杰,等.我国东北土壤有机碳、无机碳含量与土壤理化性质的相关性[J].生态学报,2011,31(18):5207-5216.
[15]王瑷玲,赵庚星,王庆芳,等.丘陵区土地整理对土壤理化性状的影响[J].农业工程学报,2011,27(9):311-315.
[16]梁启鹏,余新晓,庞卓,等.不同林分土壤有机碳密度研究[J].生态环境学报,2010,(4):889-893.
[17]Xie J,Yan L,Zhai C,et al.CO2absorption by alkaline soils and its implication to the global carbon cycle[J].Environmental Geology,2008,56(5):953-961.
[18]Wohlfahrt G,Fenstermaker L F,Arnone J A III.Large annual net ecosystem CO2uptake of a desert ecosystem[J].Global Chang Biology,2008,14(7):1475-1487.
[19]Stone R.Have desert researchers discovered a hidden loop in the carbon cycle[J].Science,2008,320(5882):1409-1410.
[20]徐畅,高明,谢德体,等.土地整理年限对紫色丘陵区土壤质量的影响[J].农业工程学报,2009,25(8):242-248.
[2]Houghton R A.The annual net flux of carbon to the atmosphere from changes in land use 1850—1990[J].Tellus,1999,51(2):299-313.
[3]王瑷玲,赵庚星,李占军.土地整理项目后综合评价研究[J].农业工程学报,2006,22(4):58-61.
[4]叶艳妹,吴次芳.土地整理对土壤性状的影响及其重建技术和工艺研究[J].浙江大学学报(农业与生命科学版),2002,28(3):267-271.
[5]马超群,刘铁铭,杨梅焕.高陵县土地整理中新增耕地土壤养分现状研究[J].西北农林科技大学学报(自然科学版),2010,38(5):175-180.
[6]孟会生,王静,郭建奎,等.黄土区土地整理压实土壤物理性状的初步研究[J].中国农学通报,2009,25(24):549-552.
[7]张雯雯,李新举,陈丽丽,等.泰安丘陵地区土地整理项目区土壤质量时空变异研究[J].安全与环境学报,2007,7(6):61-64.
[8]潘根兴,赵其国.我国农田土壤碳库演变研究:全球变化和国家粮食安全[J].地球科学进展,2005,20(4):384-393.
[9]丁雪丽,韩晓增,乔云发,等.农田土壤有机碳固存的主要影响因子及其稳定机制[J].土壤通报,2012,43(3):737-744.
[10]黄耀,孙文娟,张稳,等.中国陆地生态系统土壤有机碳变化研究进展[J].中国科学(生命科学),2010,40(7):577-586.
[11]韩冰,王效科,逯非,等.中国农田土壤生态系统固碳现状和潜力[J].生态学报,2008,28(2):612-619.
[12]谭梦,黄贤金,钟太洋,等.土地整理对农田土壤碳含量的影响[J].农业工程学报,2011,27(8):324-329.
[13]罗明,张惠远.土地整理及其生态环境影响综述[J].资源科学,2002,24(2):60-63.
[14]祖元刚,李冉,王文杰,等.我国东北土壤有机碳、无机碳含量与土壤理化性质的相关性[J].生态学报,2011,31(18):5207-5216.
[15]王瑷玲,赵庚星,王庆芳,等.丘陵区土地整理对土壤理化性状的影响[J].农业工程学报,2011,27(9):311-315.
[16]梁启鹏,余新晓,庞卓,等.不同林分土壤有机碳密度研究[J].生态环境学报,2010,(4):889-893.
[17]Xie J,Yan L,Zhai C,et al.CO2absorption by alkaline soils and its implication to the global carbon cycle[J].Environmental Geology,2008,56(5):953-961.
[18]Wohlfahrt G,Fenstermaker L F,Arnone J A III.Large annual net ecosystem CO2uptake of a desert ecosystem[J].Global Chang Biology,2008,14(7):1475-1487.
[19]Stone R.Have desert researchers discovered a hidden loop in the carbon cycle[J].Science,2008,320(5882):1409-1410.
[20]徐畅,高明,谢德体,等.土地整理年限对紫色丘陵区土壤质量的影响[J].农业工程学报,2009,25(8):242-248.