基于染色示踪的农膜残留农田土壤优先流特征

胡琦; 李仙岳; 史海滨; 田彤; 陈宁; 张月红

doi:10.13870/j.cnki.stbcxb.2020.03.022

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基于染色示踪的农膜残留农田土壤优先流特征

更新时间：2025-03-12

- 基于染色示踪的农膜残留农田土壤优先流特征
- Soil Preferential Flow Characteristics of Agricultural Film Residual Farmland Based on Dye Tracing Method
- 水土保持学报 2020年34卷第3期页码：142-149
- 作者机构：
  
  内蒙古农业大学水利与土木建筑工程学院,呼和浩特,010018
- 作者简介：
  
  [ "胡琦(1994-),女,硕士研究生,主要从事农业生态环境效应研究。E-mail:593802524@qq.com" ]
- 基金信息：
  
  国家自然科学基金项目（51669020，51469022，51539005）内蒙古自然科学基金项目（2016JQ06）
- DOI：10.13870/j.cnki.stbcxb.2020.03.022
  中图分类号： S152.7
- 纸质出版：2020
- 稿件说明：
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胡琦, 李仙岳, 史海滨, 等. 基于染色示踪的农膜残留农田土壤优先流特征[J]. 水土保持学报, 2020,34(3):142-149.

HU Qi, LI Xianyue, SHI Haibin, et al. Soil Preferential Flow Characteristics of Agricultural Film Residual Farmland Based on Dye Tracing Method[J]. 2020, 34(3): 142-149.
胡琦, 李仙岳, 史海滨, 等. 基于染色示踪的农膜残留农田土壤优先流特征[J]. 水土保持学报, 2020,34(3):142-149. DOI： 10.13870/j.cnki.stbcxb.2020.03.022.

HU Qi, LI Xianyue, SHI Haibin, et al. Soil Preferential Flow Characteristics of Agricultural Film Residual Farmland Based on Dye Tracing Method[J]. 2020, 34(3): 142-149. DOI： 10.13870/j.cnki.stbcxb.2020.03.022.

摘要

随着覆膜农作的发展，农膜残留日益严峻，严重影响土壤水流运动。为了探索农膜残留对水流运动的影响机制，在河套灌区九庄节水综合试验站，设计3种残膜量，分别为0，300，600 kg/hm2，于成熟期在各试验小区选择典型区域进行20，80 mm水量的染色示踪试验，共6个处理，研究不同残膜量对土壤物理特性的影响，基于染色示踪技术分析不同入渗量和不同残膜量对土壤水流运动的影响，并评价各处理土壤剖面的优先流特征。结果表明：随着残膜量增加，土壤容重、饱和导水率和土壤初始含水率呈下降趋势，而土壤孔隙度呈增大趋势，土壤中随机分布的残膜导致残膜处理（300，600 kg/hm2）的各物理参数有较高的变异系数。基于土壤染色剖面二值化图像分析，土壤优先流发育程度随残膜量和入渗量增加而提高，300，600 kg/hm2残膜量处理的最大染色深度（MDSD）和土壤染色剖面的变异系数（Cv）随残膜量增加而增大，与20 mm入渗量相比，80 mm入渗量下残膜处理的MDSD和Cv分别平均增加47.23%和27.34%。不同处理的优先流特征指标差异显著，5个优先流特征指标（染色面积比、基质流深度、优先流比、长度指数和变异系数）均显示残膜处理（300，600 kg/hm2）的优先流程度高于无残膜处理（0 kg/hm2），可见残膜量及入渗量的增加均会增大土壤优先流的发生几率和强度。

Abstract

Agricultural plastic film residual (PFR) increase quickly with the development of mulching cultivation

and have a strong impact on soil water movement. In order to study the influence of PFR on water flow movement mechanism

the experiment was carried out in water saving experiment station of Jiuzhuang

Hetao irrigation area. There were six treatments

including three PFR amounts(0

300

600 kg/hm2) and two water infiltration amounts (20

80 mm). The influence of different PFR amounts on soil physical properties was studied

the effects of different PFR amounts and different infiltration amounts on soil water flow was analyzed based on dye tracing method

and the preferential flow characteristics for each treatments were evaluated. The results showed that soil bulk density

saturated water conductivity

and initial soil moisture content showed a decreasing trend with the increase of PFR amount

while an increasing trend for soil porosity. The random distribution of residual film in soil lead to higher variation coefficient of each physical parameter of PFR treatment. The development degree of soil preferential flow increased with the increase of PFR amount and infiltration amount. The maximum dyeing depth (MDSD) and the coefficient of variation of soil staining profile (Cv) of 300

600 kg/hm2 PFR treatment increased with the increase of PFR amount.Compared with 20 mm infiltration

the MDSD and Cv for PFR treatment at 80 mm infiltration increased by 47.23% and 27.34%

respectively. In addition

the characteristic index of preferential flow of different treatments was significantly different. Five characteristic preferential flow indexes (dyeing area

uniform flow depth

preferential flow ratio

length index

and coefficient of variation) revealed that the preferential flow of 300

600 kg/hm2 PFR treatment was higher than that of 0 kg/hm2 treatment. It can be seen that the increase of residual film amount and infiltration amount will increase the occurrence probability and strength of soil preferential flow.

关键词

Keywords

references

Gu X B,Li Y N,Du Y D.Biodegradable film mulching improves soil temperature, moisture and seed yield of winter oilseed rape (

Brassica napus

L.)[J].Soil and Tillage Research,2017,171:42-50.

严昌荣,刘恩科,舒帆,等.我国地膜覆盖和残留污染特点与防控技术[J].农业资源与环境学报,2014,31(2):95-102.

陈东城.我国农用地膜应用现状及展望[J].甘蔗糖业,2014(4):50-54.

杨彦明,傅建伟,庞彰,等.内蒙古农田地膜残留现状分析[J].内蒙古农业科技,2010(1):10-12.

王志超,李仙岳,史海滨,等.农膜残留对土壤水动力参数及土壤结构的影响[J].农业机械学报,2015,46(5):101-106,140.

赵岩,陈学庚,温浩军,等.农田残膜污染治理技术研究现状与展望[J].农业机械学报,2017,48(6):1-14.

王志超,李仙岳,史海滨,等.覆膜年限及灌水方法对河套灌区农膜残留的影响[J].农业工程学报,2017,33(14):159-165.

董合干,刘彤,李勇冠,等.新疆棉田地膜残留对棉花产量及土壤理化性质的影响[J].农业工程学报,2013,29(8):91-99.

李元桥,何文清,严昌荣,等.残留地膜对棉花和玉米苗期根系形态和生理特性的影响[J].农业资源与环境学报,2016,34(2):108-114.

Jiang X J, Liu W, Wang E, et al. Residual plastic mulch fragments effects on soil physical properties and water flow behavior in the Minqin Oasis,northwestern China[J]. Soil and Tillage Research,2017,166:100-107.

李仙岳,史海滨,吕烨,等.土壤中不同残膜量对滴灌入渗的影响及不确定性分析[J].农业工程学报,2013,29(8):84-90.

李元桥,何文清,严昌荣,等.点源供水条件下残膜对土壤水分运移的影响[J].农业工程学报,2015,31(6):145-149.

肖自幸.鹫峰国家森林公园土壤水力参数和溶质运移研究[D].北京:北京林业大学,2012.

闫加亮,赵文智,张勇勇.绿洲农田土壤优先流特征及其对灌溉量的响应[J].应用生态学报,2015,26(5):1454-1460.

王赵男,辛颖,赵雨森.长白山系榛子灌木林根系对优先流的影响[J].林业科学研究,2017,30(6):887-894.

闫加亮,赵文智.长期机械耕作压实对绿洲农田土壤优先流的影响[J].生态学杂志,2019,38(5):1376-1383.

魏虎伟,程金花,张洪江,等.四面山2种林地大孔隙特征与优先流关系研究[J].水土保持学报,2014,28(4):263-268.

张东旭,张洪江,程金花.基于多指标评价和分形维数的坡耕地优先流定量分析[J].农业机械学报,2017,48(12):214-220,277.

盛丰,吴丹,张利勇.再生水灌溉对农田土壤水流运动影响的研究进展[J].农业工程学报,2016,32(增刊2):46-51.

陈晓冰,张洪江,程金花,等.基于染色图像变异性分析的优先流程度定量评价[J].农业机械学报,2015,46(5):93-100.

Schaik N L M B V.Spatialvariability of infiltration patterns related to site characteristics in a semi-arid watershed[J]. Catena,2009,78(1):1-47.

Bargués T A,Reese H,Almaw A,et al.The effect of trees on preferential flow and soil infiltrability in an agroforestry parkland in semiarid Burkina Faso[J].Water Resources Research,2014,30(7):3342-3354.

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