|Table of Contents|

Effect of Plastic Film Residue on Soil Microorganism Based on Pot Experiment(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2016年04
Page:
172-178
Research Field:
Publishing date:

Info

Title:
Effect of Plastic Film Residue on Soil Microorganism Based on Pot Experiment
Author(s):
SONG Shijie1ZHAO Xiaoguang1NIE Wenjie1ZHANG Yong2LI Yang1ZHAO Xue1
(1.College of Geology and Environment,Xi’an University of Science and Technology,Xi’an,Shaanxi 710054;2.Shaanxi Provincial Department of Water Resources,Xi’an,Shaanxi 710004)
Keywords:
plastic film residuepot experimentsoilmicroorganism
PACS:
-
DOI:
10.11937/bfyy.201604043
Abstract:
Plastic film residue has become a focus of ecological-environment in Chinese farmland recently.Dongjiang vegetable base located in the south suburb of Xi’an was taken as soil sampling area,based on pot experiment,the regularity for quantity change of bacteria,fungi,actinomycetes and microbial biomass in the soil in alfalfa’s different growth period such as seedling stage,early florescence stage and harvesting stage at different plastic film residue levels.The results showed that with the increase of plastic film residue level,the quantity of the bacteria in soil decreased,but not obvious.The max decrease of the bacteria was 14.38% compared with CK.The effect of plastic film residue levels on bacteria quantities with growth period were in orders:seedling stage>early florescence stage>harvesting stage.The quantity of the fungi in soil presents an obvious decreasing trend,and with growth periods.At seedling stage,the decrease rate of the fungi quantities presented trend of ‘slow-fast-slow’;at early florescence stage and harvesting stage,the decrease rate of the fungi quantities presented trend of ‘slow-fast’.The max decrease of the fungi quantities was 87.93% compared with CK.Therefore,the variation of plastic film residue level impacted the quantity of fungi very obviously.Changes of fungi quantities impacted by growth period order of the plastic film residue levels was early florescence stage>seedling stage>harvesting stage.The quantity of the actinomycetes in soil presents a decrease,and it was different different growth periods.At seedling stage,the decrease rate of the actinomycetes presented a ‘slow-fast’ trend;at early florescence stage and harvesting stage,the decrease rate of the actinomycetes quantities presented a trend of ‘slow-fast-slow’ trend.The max decrease of the actinomycetes was 62.78% compared with CK.Therefore,the variation of plastic film residue level impacted the quantity of actinomycetes obviously.Changes of actinomycetes quantities impacted by growth period order of the plastic film residue levels was early florescence stage>harvesting stage>seedling stage.The microbial biomass in the soil presented an obvious variation trend of decrease at different growth periods.The max decrease of the microbial quantities was 38.16% compared with CK.Therefore,the variation of plastic film residue level impacted the microbial quantities obviously.Changes of microbial biomass impacted by growth period order of the plastic film residue levels was early florescence stage>harvesting stage>seedling stage.The main microbiology colony caused the quantities decrease of microbial biomass at different plastic film residue levels was given according to cumulative years and cumulative quantity of the plastic film residue in a unit farmland area.It was hoped that the research results could provide theoretical basis for the treatment of plastic film mulching and ecological environment restoration.

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Last Update: 2016-04-21