松嫩平原农田和防护林土壤物理性质差异研究
Difference Study of Soil Physical Properties between Shelterbelts and Farmlands at Songnen Plain
武燕 1王琼 2仲召亮 3王文杰3
作者信息
- 1. 东北林业大学森林植物生态学教育部重点实验室,黑龙江哈尔滨150040;大庆师范学院,黑龙江大庆163712
- 2. 中国科学院东北地理与农业生态研究所,吉林长春130102
- 3. 东北林业大学森林植物生态学教育部重点实验室,黑龙江哈尔滨150040
- 折叠
摘要
[目的]研究松嫩平原杨树防护林的建设对土壤质量的影响.[方法]以松嫩平原农田和杨树防护林为研究对象,在松嫩平原设置杜蒙、富裕、兰陵、明水、肇东和肇州6个采样点,选取72对农田(对照)和防护林的配对样地,测定0 ～20 cm土壤比重、容重和孔隙度.[结果]杨树防护林营建后,富裕、明水和肇东的土壤容重显著低于农田(P＜0.05),富裕和明水的土壤孔隙度显著高于农田(P＜0.05);综合数据分析,防护林土壤容重下降了3.50％,土壤孔隙度增加了5.40％.[结论]松嫩平原农田防护林的建设可以改善土壤的物理性质,是一种局部土壤改良的可行方法.
Abstract
[Objective] The aim was to study effects of poplar shelterbelts plantation on soil quality at Songnen Plain.[Method] With farmland and polar shelterbelts at Songnen Plain as study objects,setting sup 6 sampling sites including Dumeng,Fuyu,Lanling,Mingshui,Zhaodong and Zhaozhou,selecting 72 paired plots of farmlands and neighboring shelterbelts,0-20 cm soil specific gravity,bulk density and porosity were determined.[Result] Compared to farmland,soil bulk density significantly decreased at Fuyu,Mingshui and Zhaodong following shelterbelt establishment (P ＜0.05),and soil porosity significantly increased in Fuyu and Mingshui (P ＜0.05).Overall data analysis indicated that shelterbelt plantations had 3.50％ lower soil bulk density,and 5.40％ higher soil porosity than those in farmlands.[Conclusion]Shelterbelt establishment significantly improves soil physical properties at Songnen Plain.It is a feasible method for local soil improvement.
关键词
农田/防护林/物理性质Key words
Farmland/Shelterbelt/Physical properties引用本文复制引用
基金项目
国家自然科学基金(31170575)
国家自然科学基金(41373075)
出版年
2016
国家科技期刊平台
NSTL
维普
万方数据