不同年限土地整治土壤碳分布特征
|
摘要
为明晰土地整治年限对土壤碳固持的影响,进一步探索土地整治工程对土壤质量及碳吸收与存储的影响规律,以陕西省已开展沙地、盐碱地、废弃宅基地3类土地整治项目为例开展本研究,结果表明:风沙地整治能有效增加土壤碳含量,碳密度和碳含量的变化较为一致,在整治初期因工程措施的扰动,风沙地表层有机碳降低,但因作物收获需求表层无机碳增高,随着种植年限的增长,整治后6年,沙地总碳、有机碳、无机碳密度则比整治前和整治2年后都呈显著上升趋势,各土层增幅都在30%以上;废弃宅基地整治前土壤质量较好,整治前后土壤碳含量的变化不显著,但随着种植年限的延长,整治7年后,总碳密度在0—10,10—20 cm处分别增高40%,34%;有机碳密度在0—10 cm,10—20 cm处分别增高83%,53%,碳储量随整治年限逐渐增加;盐碱地整治后表层覆沙中富含碳酸盐,随着碳酸盐向深层淋溶,深层无机碳增加,随着种植年限的增加,表层无机碳含量显著增加,剖面无机碳储量也显著增加,有机碳储量波动不大,总碳储量显著增高。风沙地、废弃宅基地、盐碱地整治对于土壤碳固持能力都有一定改善作用,且这种作用在作物种植与工程措施实施两方面的综合效应下,会随着整治年限的延长,更加明显。
In order to analyze the impact of land consolidation on soil carbon sequestration and further explore the impact of land remediation projects on soil quality and carbon sequestration and storage, we took three types of land remediation projects such as sandy land, saline-alkaline land and abandoned housing sites as the examples. The results of this study showed that the improvement of soil carbon content in windy sandy land remediation could effectively increase the carbon density and carbon content. In the initial stage of remediation, due to disturbance of engineering measures, the organic carbon in the surface layer of sandy land decreased; but due to the crop harvesting demand, surface inorganic carbon increased with the increase in the number of years of cultivation, the total carbon, organic carbon, and inorganic carbon density in the sandy land were significantly higher than those before the remediation and two years after the remediation, and the growth of all soil layers was more than 30%. The quality of soil before treatment of abandoned housing plots was good, and the soil carbon content did not change significantly before and after remediation, but with the extension of planting years, the total carbon density increased by 40% in 0—10 cm layer and 34% in 10—20 cm layer after 7 years of remediation; organic carbon density increased by 83% and 53% in 0—10 cm layer and 10—20 cm layer, respectively, and carbon storage gradually increased with the years of remediation; carbon enrichment in surface sedimentation after saline-alkali soil remediation salts, as carbonates leached towards the deeper layers, inorganic carbons increased in deeper layers. With the increase of planting years, the surface inorganic carbon content increased significantly, the profile inorganic carbon reserves also increased significantly, the organic carbon reserves fluctuated little, and the total carbon reserves significantly increased. The wind-sand, abandoned homestead, and saline-alkali land remediation have a certain improvement effect on soil carbon retentive capacity, and the effect will be more obvious with the extension of the remediation period under the combined effects of crop planting and engineering measures.
In order to analyze the impact of land consolidation on soil carbon sequestration and further explore the impact of land remediation projects on soil quality and carbon sequestration and storage, we took three types of land remediation projects such as sandy land, saline-alkaline land and abandoned housing sites as the examples. The results of this study showed that the improvement of soil carbon content in windy sandy land remediation could effectively increase the carbon density and carbon content. In the initial stage of remediation, due to disturbance of engineering measures, the organic carbon in the surface layer of sandy land decreased; but due to the crop harvesting demand, surface inorganic carbon increased with the increase in the number of years of cultivation, the total carbon, organic carbon, and inorganic carbon density in the sandy land were significantly higher than those before the remediation and two years after the remediation, and the growth of all soil layers was more than 30%. The quality of soil before treatment of abandoned housing plots was good, and the soil carbon content did not change significantly before and after remediation, but with the extension of planting years, the total carbon density increased by 40% in 0—10 cm layer and 34% in 10—20 cm layer after 7 years of remediation; organic carbon density increased by 83% and 53% in 0—10 cm layer and 10—20 cm layer, respectively, and carbon storage gradually increased with the years of remediation; carbon enrichment in surface sedimentation after saline-alkali soil remediation salts, as carbonates leached towards the deeper layers, inorganic carbons increased in deeper layers. With the increase of planting years, the surface inorganic carbon content increased significantly, the profile inorganic carbon reserves also increased significantly, the organic carbon reserves fluctuated little, and the total carbon reserves significantly increased. The wind-sand, abandoned homestead, and saline-alkali land remediation have a certain improvement effect on soil carbon retentive capacity, and the effect will be more obvious with the extension of the remediation period under the combined effects of crop planting and engineering measures.
引文
[1]王瑷玲,赵庚星,李占军.土地整理效益项目后综合评价方法[J].农业工程学报,2006,22(4):68-71.
[2]石小霞,赵诣,张琳,等.华北平原不同农田管理措施对于土壤碳库的影响[J].环境科学,2017,38(1):301-308.
[3]贺美,王迎春,王立刚,等.应用DNDC模型分析东北黑土有机碳演变规律及其与作物产量之间的协同关系[J].植物营养与肥料学报,2017,23(1):9-19.
[4]邓彩云,王玉刚,牛子儒,等.开垦年限对干旱区土壤理化性质及剖面无机碳的影响[J].水土保持学报,2017,31(1):254-259.
[5]Han J, Xie J, Zhang Y. Potential role of feldspathic sandstone as a natural water retaining agent in Mu Us Sandy Land, Northwest China[J]. Chinese Geographical Science, 2012,22(5):550-555.
[6]韩可欣,禹朴家,韩东亮,等.开垦年限对松嫩碱化草地土壤碳库的影响[J].土壤通报,2017(1):127-133.
[7]陈永乐,张志山,赵洋.人工固沙区土壤碳分布及其与土壤属性的关系[J].中国沙漠,2017,37(2):296-304.
[8]贺美,王立刚,朱平,等.长期定位施肥下黑土碳排放特征及其碳库组分与酶活性变化[J].生态学报,2017,37(19):6379-6389.
[9]丁金枝,来利明,赵学春,等.荒漠化对毛乌素沙地土壤呼吸及生态系统碳固持的影响[J].生态学报,2011,31(6):1594-1603.
[10]Chen G, Zhu H, Zhang Y. Soil microbial activities and carbon and nitrogen fixation[J]. Research in Microbiology, 2003,154(6):393-398.
[11]Huang R Z. Ecological rehabilitation measures and their carbon fixation effect on degraded red soil ecosystem in South China[J]Advanced Materials Research, 2012,531:370-374.
[12]王清奎.碳输入方式对森林土壤碳库和碳循环的影响研究进展[J].应用生态学报,2011,22(4):1075-1081.
[13]许乃政,刘红樱,魏峰.土壤碳库及其变化研究进展[J].江苏农业科学,2011,39(2):1-5.
[14]何念鹏,韩兴国,于贵瑞.长期封育对不同类型草地碳贮量及其固持速率的影响[J].生态学报,2011,31(15):4270-4276.
[15]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.
[16]杨忠芳,夏学齐,余涛,等.内蒙古中北部土壤碳库构成及其影响因素[J].地学前缘,2011,18(6):1-10.
[17]张涛,李永夫,姜培坤,等.土地利用变化影响土壤碳库特征与土壤呼吸研究综述[J].浙江农林大学学报,2013,30(3):428-437.
[18]周丽,王玉刚,李彦,等.盐碱荒地开垦年限对表层土壤盐分的影响[J].干旱区地理,2013,36(2):285-291.
[19]王苑,宋新山,王君,等.干湿交替对土壤碳库和有机碳矿化的影响[J].土壤学报,2014(2):342-350.
[20]罗毅.干旱区绿洲滴灌对土壤盐碱化的长期影响[J].中国科学:地球科学,2014(8):1679-1688.
[21]张旭博,孙楠,徐明岗,等.全球气候变化下中国农田土壤碳库未来变化[J].中国农业科学,2014,47(23):4648-4657.
[22]郭晶晶,夏学齐,杨忠芳,等.长江流域典型区域土壤碳库变化及其影响因素[J].地学前缘,2015,22(6):241-250.
[23]何念鹏,韩兴国,于贵瑞.内蒙古放牧草地土壤碳固持速率和潜力[J].生态学报,2012,32(3):844-851.
[24]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.
[25]王晖.南亚热带4种人工林土壤碳固持及其主要相关过程研究[D].北京:中国林业科学研究院,2010.
[26]顾伟,李志安,邹碧,等.华南热带人工林土壤有机碳含量及其稳定性特征[J].热带亚热带植物学报,2007,15(5):369-376.
[27]张林.荒漠草原土壤有机碳向土壤无机碳酸盐转移的定性与定量研究[D].北京:北京林业大学,2010.
[28]张庶,金晓斌,杨绪红,等.农用地整治项目的碳效应分析与核算研究[J].资源科学,2016,38(1):93-101.
[29]纪永福.地面覆盖对盐渍土盐分和水分影响的研究[D].兰州:甘肃农业大学,2000.
[30]Bharali A, Baruah K K, Gogoi N. Methane emission from irrigated rice ecosystem: relationship with carbon fixation, partitioning and soil carbon storage[J]. Paddy and Water Environment, 2017,15(2):221-236.
[31]Swanepoel P A, Botha P R, Truter W F, et al. The effect of soil carbon on symbiotic nitrogen fixation and symbiotic Rhizobium populations in soil with Trifoliumrepens as host plant[J]. African Journal of Range & Forage Science, 2011,28(3):121-127.
[32]梁颖,耿槟,鲍海君.生态型土地整治工程对土壤固碳能力的影响研究[J].上海国土资源,2016,37(2):5-8.
[2]石小霞,赵诣,张琳,等.华北平原不同农田管理措施对于土壤碳库的影响[J].环境科学,2017,38(1):301-308.
[3]贺美,王迎春,王立刚,等.应用DNDC模型分析东北黑土有机碳演变规律及其与作物产量之间的协同关系[J].植物营养与肥料学报,2017,23(1):9-19.
[4]邓彩云,王玉刚,牛子儒,等.开垦年限对干旱区土壤理化性质及剖面无机碳的影响[J].水土保持学报,2017,31(1):254-259.
[5]Han J, Xie J, Zhang Y. Potential role of feldspathic sandstone as a natural water retaining agent in Mu Us Sandy Land, Northwest China[J]. Chinese Geographical Science, 2012,22(5):550-555.
[6]韩可欣,禹朴家,韩东亮,等.开垦年限对松嫩碱化草地土壤碳库的影响[J].土壤通报,2017(1):127-133.
[7]陈永乐,张志山,赵洋.人工固沙区土壤碳分布及其与土壤属性的关系[J].中国沙漠,2017,37(2):296-304.
[8]贺美,王立刚,朱平,等.长期定位施肥下黑土碳排放特征及其碳库组分与酶活性变化[J].生态学报,2017,37(19):6379-6389.
[9]丁金枝,来利明,赵学春,等.荒漠化对毛乌素沙地土壤呼吸及生态系统碳固持的影响[J].生态学报,2011,31(6):1594-1603.
[10]Chen G, Zhu H, Zhang Y. Soil microbial activities and carbon and nitrogen fixation[J]. Research in Microbiology, 2003,154(6):393-398.
[11]Huang R Z. Ecological rehabilitation measures and their carbon fixation effect on degraded red soil ecosystem in South China[J]Advanced Materials Research, 2012,531:370-374.
[12]王清奎.碳输入方式对森林土壤碳库和碳循环的影响研究进展[J].应用生态学报,2011,22(4):1075-1081.
[13]许乃政,刘红樱,魏峰.土壤碳库及其变化研究进展[J].江苏农业科学,2011,39(2):1-5.
[14]何念鹏,韩兴国,于贵瑞.长期封育对不同类型草地碳贮量及其固持速率的影响[J].生态学报,2011,31(15):4270-4276.
[15]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.
[16]杨忠芳,夏学齐,余涛,等.内蒙古中北部土壤碳库构成及其影响因素[J].地学前缘,2011,18(6):1-10.
[17]张涛,李永夫,姜培坤,等.土地利用变化影响土壤碳库特征与土壤呼吸研究综述[J].浙江农林大学学报,2013,30(3):428-437.
[18]周丽,王玉刚,李彦,等.盐碱荒地开垦年限对表层土壤盐分的影响[J].干旱区地理,2013,36(2):285-291.
[19]王苑,宋新山,王君,等.干湿交替对土壤碳库和有机碳矿化的影响[J].土壤学报,2014(2):342-350.
[20]罗毅.干旱区绿洲滴灌对土壤盐碱化的长期影响[J].中国科学:地球科学,2014(8):1679-1688.
[21]张旭博,孙楠,徐明岗,等.全球气候变化下中国农田土壤碳库未来变化[J].中国农业科学,2014,47(23):4648-4657.
[22]郭晶晶,夏学齐,杨忠芳,等.长江流域典型区域土壤碳库变化及其影响因素[J].地学前缘,2015,22(6):241-250.
[23]何念鹏,韩兴国,于贵瑞.内蒙古放牧草地土壤碳固持速率和潜力[J].生态学报,2012,32(3):844-851.
[24]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.
[25]王晖.南亚热带4种人工林土壤碳固持及其主要相关过程研究[D].北京:中国林业科学研究院,2010.
[26]顾伟,李志安,邹碧,等.华南热带人工林土壤有机碳含量及其稳定性特征[J].热带亚热带植物学报,2007,15(5):369-376.
[27]张林.荒漠草原土壤有机碳向土壤无机碳酸盐转移的定性与定量研究[D].北京:北京林业大学,2010.
[28]张庶,金晓斌,杨绪红,等.农用地整治项目的碳效应分析与核算研究[J].资源科学,2016,38(1):93-101.
[29]纪永福.地面覆盖对盐渍土盐分和水分影响的研究[D].兰州:甘肃农业大学,2000.
[30]Bharali A, Baruah K K, Gogoi N. Methane emission from irrigated rice ecosystem: relationship with carbon fixation, partitioning and soil carbon storage[J]. Paddy and Water Environment, 2017,15(2):221-236.
[31]Swanepoel P A, Botha P R, Truter W F, et al. The effect of soil carbon on symbiotic nitrogen fixation and symbiotic Rhizobium populations in soil with Trifoliumrepens as host plant[J]. African Journal of Range & Forage Science, 2011,28(3):121-127.
[32]梁颖,耿槟,鲍海君.生态型土地整治工程对土壤固碳能力的影响研究[J].上海国土资源,2016,37(2):5-8.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |