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

作　　者：武燕[1,2] 王琼[3] 仲召亮[1] 王文杰[1] 

机构地区：[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 [2]大庆师范学院,黑龙江大庆163712 [3]中国科学院东北地理与农业生态研究所,吉林长春130102

出　　处：《安徽农业科学》2016年第9期177-179,共3页Journal of Anhui Agricultural Sciences

基　　金：国家自然科学基金项目(31170575;41373075)

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。[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 

分 类 号：S152[农业科学—土壤学]