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热带作物学报 ›› 2020, Vol. 41 ›› Issue (5): 1057-1063.doi: 10.3969/j.issn.1000-2561.2020.05.028

• 生态学 • 上一篇    

不同管理方式下山地胶园土壤物理和水热特性

原慧芳,黄菁,田耀华()   

  1. 云南省热带作物科学研究所,云南景洪 666100
  • 收稿日期:2019-08-02 修回日期:2019-09-06 出版日期:2020-05-25 发布日期:2020-06-15
  • 通讯作者: 田耀华 E-mail:115500286@qq.com
  • 作者简介:原慧芳(1978—),女,硕士,副研究员,研究方向:热带植物生理生态。
  • 基金资助:
    云南省热带作物科技创新体系建设专项(RF2018-3);“云岭产业技术领军人才”培养计划(2014-1782);云南省现代农业橡胶产技术体系建设(2018KJTX008-03)

Soil Physical and Hydrothermal Characteristics of Mountain Rubber Plantation under Different Management Modes

YUAN Huifang,HUANG Jing,TIAN Yaohua()   

  1. Yunnan Institute of Tropical Crops, Jinghong, Yunnan 666100, China
  • Received:2019-08-02 Revised:2019-09-06 Online:2020-05-25 Published:2020-06-15
  • Contact: TIAN Yaohua E-mail:115500286@qq.com

摘要:

为研究不同管理方式下山地胶园土壤物理和水热特性的变化情况,本研究在田间布置了喷除草剂(S)、人工净除(A)、绿肥覆盖(G)、地膜覆盖(F)、壕沟截流(T)、综合措施(M)和常规管理(CK)共7种管理方式处理的对比试验,定期测定各处理的土壤物理性质和水热特性指标。结果表明:G、F和M处理下的土壤水分含量(SWC)、原位土壤含水量(SMC)、土壤容重(SBD)、土壤孔隙度(SP)、土壤密度(SD)、土壤pH等参数均优于T、S、A和CK;F和M处理下的原位土壤温度(ST)均高于其他处理,而G处理ST最低;各处理原位的土壤电导率(SC)变化趋势不一,M、F和G的SC从干季的较低转变成雨季的较高,但两季间无显著差异,干季的S、A、T和CK处理的SC均显著高于雨季。总体来看,采取多种覆盖模式能有效地抑制土壤蒸发,提高土壤持水能力,有利于改善土壤结构,具有较好的土壤保墒作用。因此,覆盖处理可作为山地胶园主要推广的土壤优化管理方式。

关键词: 山地胶园, 管理方式, 土壤物理性质, 水热特性

Abstract:

In order to study the changes of soil physical and hydrothermal characteristics in mountainous rubber plantations under different management modes, seven treatments were set up in the field, including spraying herbicide (S), artificial weeding (A), green manure mulching(G), covering film (F), trench interception (T), comprehensive measures (M) and conventional control (CK). The soil physical properties, in-situ soil water and heat characteristics were measured regularly. The soil water content (SWC), in situ soil moisture content (SMC), soil bulk density (SBD), soil porosity (SP), soil density (SD), soil pH and other parameters under G, F and M treatment were all superior to that of T, S, A and CK. Soil temperature (ST) under F and M treatment was higher than that of other treatments, while ST was the lowest under G treatment. In situ soil conductivity (SC) of each treatment showed different trends. SC of M, F and G changed from low in dry season to high in rainy season, but there was no significant difference between the two seasons, and the SC of S, A, T and CK in dry season was significantly higher than that in rainy season. In a word, adopting multiple mulching modes can effectively inhibit soil evaporation, improve soil water holding capacity, help to improve soil structure, and have a good soil moisture conservation effect. Therefore, mulching treatment can be used as the main mode of soil optimal management in mountain rubber plantation.

Key words: mountain rubber plantation, management modes, soil physical properties, water thermal characteristics

中图分类号: 

  • S153.6