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Chinese Agricultural Science Bulletin ›› 2022, Vol. 38 ›› Issue (4): 76-80.doi: 10.11924/j.issn.1000-6850.casb2021-0261

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Quantitative Assessment on Comprehensive Effects of Mulching Films by Integrated Evaluation Index Method

HUA Limin1(), LIU Huiying1(), XUE Yinghao2, LAN Xiping3, WANG Yitao3, CAI Guangxing1   

  1. 1Liaoning Academy of Agricultural Sciences, Shenyang 110161
    2Rural Energy and Environment Agency, Ministry of Agriculture and Rural Affairs, Beijing 100125
    3Liaoning Agricultural Ecology and Environmental Protection Agency, Shenyang 110034
  • Received:2021-03-15 Revised:2021-06-02 Online:2022-02-05 Published:2022-03-16
  • Contact: LIU Huiying E-mail:270422324@qq.com;liujinhuiying@126.com

Abstract:

In view of the fact that current evaluation method on mulching-film cannot take the comprehensive factors such as crop yield, cost, film residue in soil, soil fertility and mechanical properties of mulching-film into account, in this paper, integrated evaluation index (IEI) was used to quantitatively assess the mulching effects on peanut with different mulching-film products. The membership rates of each index in IEI were determined by upper limited membership function and weight values of evaluation indexes were calculated by correlation analysis method. Based on a three-year location test in sandy soil in northeast China’s semi-arid area, the comprehensive effects of no mulching-film (CK), PE film (PE), biodegradable film (T1) and light-biogenic degradable film (T2) on peanut inter-annual yield, soil quality index (SNI), cost, film residual quantity and film mechanical properties index (MPI) were studied. The results showed that the order of influencing factors for the evaluation of mulching-film products was: MPI, cost, yield, SNI, and film residual quantity. IEI of biodegradable film (T1) and light-biogenic degradable film (T2) was 90.58% and 24.23% higher than that of PE, respectively, IEI of biodegradable film (T1) was 53.41% higher than that of light-biogenic degradable film (T2). Therefore, biodegradable film application is proposed for peanut production in sandy soil in semi-arid area.

Key words: upper limited membership function, integrated evaluation index, correlation analysis method, quantitative assessment, mulching film, comprehensive effect

CLC Number: