ZHANG Xiaodong,LIU Shaoxiong,SUN Yu,et al.Variation Characteristics of Soil Physicochemical Properties of Coastal Saline-alkali Lands with Different Improvement Years[J].Research of Soil and Water Conservation,2022,29(01):113-118.
滨海盐碱地不同改良年限土壤理化性质的变化特征
- Title:
- Variation Characteristics of Soil Physicochemical Properties of Coastal Saline-alkali Lands with Different Improvement Years
- 文章编号:
- 1005-3409(2022)01-0113-06
- Keywords:
- saline soil reclamation; planting on the original soil; different years; physicochemical properties
- 分类号:
- S156.4
- 文献标志码:
- A
- 摘要:
- 为了研究滨海盐碱地改良效果的可持续年限,选择利用“原土直栽绿化综合改良模式”改良的滨海盐碱地为研究对象,采用空间代替时间的方法,通过对不同改良年限滨海盐碱地的土壤容重、总孔隙度、机械组成、全盐含量、有机质、碱解氮和速效磷的分析,研究了滨海盐碱地不同改良年限土壤理化性质的变化特征。结果表明:盐碱地改良后,对土壤物理性质的改良效果随土层深度的增加逐渐减弱,随改良年限的增加,土壤质地无明显变化,0—20 cm土层土壤容重降低,总孔隙度升高,20—40 cm和40—60 cm土层土壤容重先降低后升高,总孔隙度先升高后降低; 3个土层化学性质变化趋势基本一致,随着改良年限的增加,土壤全盐含量先降低后升高,有机质,碱解氮和速效磷含量先升高后降低。总体来说,原土改良模式对滨海盐碱地土壤的改良效果在5年达到最优,11年时土壤的物理化学性质基本上都比未改良的盐碱地好。
- Abstract:
- In order to investigate the sustainable years of the comprehensive improvement effects of coastal saline-alkali land, we took the saline-alkali land which was improved in a comprehensive improvement mode and could be planted directly on the original soil as the research object and studied the changes of soil physicohemical properties in different ameliorating years by using space instead of time based on the analysis of soil bulk density, total porosity, mechanical composition, salinity and organic matter, alkali-hydro nitrogen and available phosphorus, of which coastal saline-alkali had been improved in a comprehensive way. The results showed that the improvement effects of this model on soil gradually weakened with the increase of soil depth. With the increase of the recovery years, soil texture did not change significantly, soil bulk density in 0—20 cm soil layer decreased, total porosity increased, while soil bulk densities in 20—40 cm soil layer and 40—60 cm soil layer decreased first and then increased, and total porosities first increased and then decreased. The change trend of the chemical properties of the three soil layers was basically the same. With the increase of the recovery years, soil salinity first decreased and then increased, and the contents of organic matter, alkali-hydro nitrogen and available phosphorus first increased and then decreased. In general, the comprehensive improvement model for the original soil in the coastal saline-alkali land reached the optimal level after 5-year improvement. The physicochemical properties of the soil were basically better than those of the unimproved saline-alkali land in the eleventh year.
参考文献/References:
[1] 王佳丽,黄贤金,钟太洋,等.盐碱地可持续利用研究综述[J].地理学报,2011,66(5):673-684.[2] 李可晔,薛志忠,王文成,等.滨海盐碱地土壤改良添加物筛选研究[J].北方园艺,2014(19):165-168.[3] 王合云,李红丽,董智,等.滨海盐碱地不同造林树种改良土壤效果研究[J].水土保持研究,2016,23(2):161-165.[4] 韩剑宏,王旭平,张连科,等.玉米秸秆与污泥的腐解物对盐碱地化学指标的影响[J].水土保持研究,2017,24(3):103-107.[5] 耿其明,闫慧慧,杨金泽,等.明沟与暗管排水工程对盐碱地开发的土壤改良效果评价[J].土壤通报,2019,50(3):617-624.[6] 商振芳,谢思绮,罗旺,等.我国盐碱地现状及其改良技术研究进展[C]∥中国环境科学学会,2019中国环境科学学会科学技术年会论文集(第三卷).中国环境科学学会:中国环境科学学会,2019:2773-2782.[7] 季洪亮,路艳.滨海盐碱地生态修复效果评价[J].西北林学院学报,2017,32(2):301-307.[8] 邹璐,范秀华,孙兆军,等.盐碱地施用脱硫石膏对土壤养分及油葵光合特性的影响[J].应用与环境生物学报,2012,18(4):575-581.[9] 窦超银,康跃虎.地下水浅埋区重度盐碱地不同滴灌种植年限土壤盐分分布特征[J].土壤,2010,42(4):630-638.[10] 王旭,田长彦,赵振勇,等.滴灌条件下盐地碱蓬(Suaeda salsa)种植年限对盐碱地土壤盐分离子分布的影响[J].干旱区地理,2020,43(1):211-217.[11] 魏晓斌,王志锋,于洪柱,等.不同生长年限苜蓿对盐碱地土壤肥力的影响[J].草业科学,2013,30(10):1502-1507.[12] 何海锋,吴娜,刘吉利,等.柳枝稷种植年限对盐碱土壤理化性质的影响[J].生态环境学报,2020,29(2):285-292.[13] 王巍巍.不同种稻年限苏打盐碱地水田土壤酶活性变化及其与养分含量关系[D].长春:吉林农业大学,2016.[14] 孙昌禹,王文成,郭艳超,等.滨海泥质重盐碱地原土直栽绿化技术[J].北方园艺,2012(4):102-103.[15] 朱琴,左丽明,马旺.唐山市丰南区沙河口土壤改良与绿化技术研究[J].安徽农业科学,2014,42(23):7971-7973.[16] 王文成,孙宇,郭艳超,等.滨海泥质重盐碱地综合改良与植被构建关键技术研究[J].现代农业科技,2014(4):207-208.[17] 鲍士旦.土壤农化分析[M].北京:中国农业出版社,2000,30-172.[18] 吴焕焕,吕家珑,段英华,等.激光衍射法测定中国典型土壤颗粒分布的模型建立与验证[J].中国农业科学,2013,46(20):4293-4300.[19] 中国科学院南京土壤研究所.土壤理化分析[M].上海:上海科技出版社,1978:132.[20] 南丽丽,郁继华,郭全恩,等.苜蓿不同种植年限对土壤化学性状及酶活性的影响[J].干旱区资源与环境,2015,29(10):100-105.[21] 徐艳霞,黄新育,蓝岚,等.不同种植年限紫花苜蓿田土壤理化性质和酶活性研究[J].黑龙江畜牧兽医,2018(13):157-160.[22] 杨玉海,蒋平安.不同种植年限苜蓿地土壤理化特性研究[J].水土保持学报,2005,19(2):110-113.
备注/Memo
收稿日期:2021-02-09 修回日期:2021-02-26资助项目:河北省农林科学院创新工程项目“滨海盐碱地资源监测及植被修复技术研究”(2019-1-6-2); 唐山市科技计划项目“沿海湿地植物多样性调查及生态修复技术研究”(20150211C)第一作者:张小栋(1992—),男,河北唐山人,硕士研究生,主要从事于盐碱地改良与生态修复研究。E-mail:18031310356@163.com通信作者:陈亚恒(1973—),男,河北保定人,教授,硕士生导师,从事土壤和土地资源可持续利用研究。E-mail:chenyaheng@126.com