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The Impact of Intensive Utilization of Cultivated Land on Grain Yields: A Case Study of Shandong Province in China

Ruozhou Wang

,

Yanqing Jiang

Ruozhou Wang 1 Yanqing Jiang 1 ,
;

  1. School of Economics and Finance, Shanghai International Studies University, Shanghai, China 1

Pages: 76-84

DOI: 10.18488/journal.70.2018.54.76.84

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Article History:

Received: 25 September, 2018
Revised: 29 October, 2018
Accepted: 04 December, 2018
Published: 31 December, 2018


Abstract:

Using time series data of agriculture in Shandong Province during the period from 2000 to 2015, this paper sets up an assessment system of intensive utilization of cultivated land, which has 4 criteria(input intensity, utilization intensity, output effectiveness and sustainability) consisting of 9 indices, comprehensively estimates the level of intensive use of agricultural land with entropy method, and empirically analyzes the impact of intensive utilization of cultivated land on grain yields through the use of a multivariable linear regression model. The results are shown as follows: (1) The level of intensive utilization of cultivated land in Shandong Province has been fluctuating upwards but not significantly progressing. (2) Grain yield per hectare is positively correlated with output effectiveness and utilization intensity, and the contribution of output effectiveness to grain yield per hectare is more than the other. (3) grain yield per hectare is negatively correlated with input intensity and sustainability. Therefore, in the long-term, cultivated land management strategy should be planned to improve the input intensity, to emphasis on the sustainability of farm land and to promote the consciousness of cultivated land protection in order to increase the productivity of grain yields.
Contribution/ Originality
This study contributes in the existing literature by supplementing existing research related to Shandong Province cultivated land, few of which have been conducted on the relationship of grain yield and intensive utilization of arable land. Hence, the current research constitutes an original contribution in this field.

Keywords:

Intensive utilization, Cultivated land, Entropy method, Multivariable linear regression Shandong province, Sustainability, Agriculture

Reference:


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Funding:

This study received no specific financial support.

Competing Interests:

The authors declare that they have no competing interests.

Acknowledgement:

Both authors contributed equally to the conception and design of the study.

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