平茬对3种苗木来源蛋白桑林地土壤理化性质的影响

doi:10.13304/j.nykjdb.2020.0582

中国农业科技导报 ›› 2022, Vol. 24 ›› Issue (1): 172-182.DOI: 10.13304/j.nykjdb.2020.0582

平茬对3种苗木来源蛋白桑林地土壤理化性质的影响

李敏¹(), 李钢铁¹(), 张宏武², 陈家欢¹

^1.内蒙古农业大学沙漠治理学院，呼和浩特 010000
^2.内蒙古正镶白旗林业工作站，内蒙古锡林郭勒盟 013800

收稿日期:2020-06-30 接受日期:2020-10-16 出版日期:2022-01-15 发布日期:2022-01-25
通讯作者: 李钢铁
作者简介:李敏 E-mail：972244141@qq.com；
基金资助:
内蒙古自治区科技成果转化项目(CGZH2018137)

Effects of Stubble on Soil Physical and Chemical Properties of Three Kinds of Protein Mulberry Forest

Min LI¹(), Gangtie LI¹(), Hongwu ZHANG², Jiahuan CHEN¹

^1.School of Desert Governance, Inner Mongolia Agricultural University, Hohhot 010000, China
^2.Forest Workstation of White Flag in Inner Mongolia, Inner Mongolia Xilin Gol League 013800, China

Received:2020-06-30 Accepted:2020-10-16 Online:2022-01-15 Published:2022-01-25
Contact: Gangtie LI

摘要/Abstract

摘要：

为探究平茬对蛋白桑林地土壤理化性质的作用，并探究适于研究区种植的最佳桑树苗木，以林龄为2 a，来源于内蒙古自治区通辽市、黑龙江省哈尔滨市和陕西省西安市的3种蛋白桑林下土壤为研究对象，测定了植株下-平茬、植株下-不平茬、行带间-平茬和行带间-不平茬4种处理下土壤的pH、机械组成、速效养分及有机质含量，采用相关分析法对平茬及不平茬的土壤颗粒组成和其他土壤因子进行分析。结果表明，3种来源蛋白桑平茬后土壤均表现为pH下降，粘粒含量增加，土壤中有机质、碱解氮和速效钾等养分与极细砂含量呈显著正相关关系。土壤理化性质综合评价排序为西安林下土壤（0.463）>通辽林下土壤（0.274）>哈尔滨林下土壤（0.260），因此适于研究区种植的为西安来源蛋白桑。

关键词: 蛋白桑, 平茬措施, 林地, 土壤理化性质

Abstract:

In order to explore the effects of stump on soil physical and chemical properties of protein mulberry forest and the best mulberry seedlings suitable for planting in the study area， the soils of protein mulberry forests with tree age of 2 years from 3 regions， including Tongliao in Inner Mongolia， Harbin in Heilongjiang and Xi’an in Shaanxi， were as research objects. Soil pH， mechanical composition， and the contents of available nutrients and organic matter were determined under 4 treatments including under the plant stump， under the plant-uneven stump， between the rows stump and between the rows-uneven stump. The correlation between soil particle composition and soil nutrients were analyzed. The results showed that the pH of soil was decreased and the content of silt was increased after stump. There were significant positive correlations between the content of very fine sand and the content of alkali-hydrolyzed nitrogen， organic matter and available potassium in the soil. The order of comprehensive evaluation of soil physical and chemical properties was Xi’an understory soil （0.463）>Tongliao understory soil （0.274）>Harbin understory soil （0.260）. So the protein mulberry forest from Xi’an was suitable for planting in study area.

Key words: protein mulberry, stump measure, forestland, soil physical and chemical properties

中图分类号:

S793.9

李敏, 李钢铁, 张宏武, 陈家欢. 平茬对3种苗木来源蛋白桑林地土壤理化性质的影响[J]. 中国农业科技导报, 2022, 24(1): 172-182.

Min LI, Gangtie LI, Hongwu ZHANG, Jiahuan CHEN. Effects of Stubble on Soil Physical and Chemical Properties of Three Kinds of Protein Mulberry Forest[J]. Journal of Agricultural Science and Technology, 2022, 24(1): 172-182.

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平茬对3种苗木来源蛋白桑林地土壤理化性质的影响

Effects of Stubble on Soil Physical and Chemical Properties of Three Kinds of Protein Mulberry Forest

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