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Preprint ARTICLE | doi:10.20944/preprints202104.0431.v1

Spatio-temporal Evolution and Improvement Potential of Agricultural Eco-efficiency in Jiangsu Province

Zaijun Li, Meijuan Hu, Tao Jin

Subject: Environmental And Earth Sciences, Atmospheric Science And Meteorology Keywords: agricultural eco-efficiency; DEA-SBM model; spatio-temporal evolution pattern; improvement potential; Jiangsu Province

Online: 16 April 2021 (10:34:15 CEST)

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Achieving eco-efficiency in agriculture production at low environmental costs is key to sustainable agriculture. Using the DEA-SBM model, this study evaluated the agricultural eco-efficiency of the 77 counties and districts in China’s Jiangsu province from 1999 to 2018 and analyzed its spatio-temporal evolution pattern and influencing factors. The mains conclusions were as follows: (1) The overall agricultural eco-efficiency and its decomposition terms, pure technology efficiency and scale efficiency, exhibited a fluctuating downward trend. The regional inequality in agricultural eco-efficiency had been widening and exhibited a strong positive spatial association. (2) The agricultural eco-efficiency in Jiangsu province presented a “high south and low north” spatial pattern. High-level agricultural eco-efficiency areas were in the Taihu Plain in Sunan, while low-level agricultural eco-efficiency zones are distributed across Subei City. The High-High-type spatial association pattern is concentrated in the Suzhou-Wuxi-Changzhou region, while the Low-Low areas are mainly in the coastal regions of Subei and Suzhong. (3) The spatial pattern of PTE and SE generally exhibited a “high south and low north” distribution. Areas with positive growth in agricultural eco-efficiency, PTE, and SE, were situated in Xuzhou, Nanjing city, and the bordering regions between Yangzhou and Huai’an, and Changzhou and Wuxi. (4) The excessive redundant use and application of pesticides, chemical fertilizer, agricultural diesel, labor, land, and agricultural carbon emission have been the primary factor affecting Jiangsu's agricultural eco-efficiency. Irrigation had also signficantly impacted agricultural eco-efficiency, while mechanical power and agricultural film had minimal effect. The majority of counties and districts in Subei, Suzhong, and Ningzhen Yang Hilly region have issues regarding their excessive usage of chemical fertilizer, pesticide, chemical fertilizer, agricultural diesel, labor, and land. The findings of this study can contribute towards a better understanding of agricultural eco-efficiency and spatial association effect and can help policymakers increase agricultural eco-efficiency.

Preprint ARTICLE | doi:10.20944/preprints202310.0579.v1

Chinese Agriculture towards "Green & Grain" Productivity Growth: Evidence from Jiangsu Province

Lijiu Zhao, Tao Jin, Lintao Qin, Zaijun Li

Subject: Environmental And Earth Sciences, Sustainable Science And Technology Keywords: green development in agriculture; grain security; frontier movement effect; catch-up effect; Chinese government-led agricultural science and innovation system; Malmquist-Luenberger Productivity Index

Online: 10 October 2023 (05:09:42 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201904.0115.v1

The Distribution of Tryptophan-Dependent Indole-3-Acetic Acid Synthesis Pathways in Bacteria Unraveled by Large-Scale Genomic Analysis

Pengfan Zhang, Tao Jin, Sunil Kumar Sahu, Jin Xu, Qiong Shi, Huan Liu, Yayu Wang

Subject: Biology And Life Sciences, Immunology And Microbiology Keywords: Indole-3-acetic acid; Bacteria; Pathways; Genomes; Metagenomes

Online: 9 April 2019 (12:59:50 CEST)

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Preprint REVIEW | doi:10.20944/preprints201812.0156.v1

The Report of Marine Life Genomic Research

Guangyi Fan, Jianwei Chen, Tao Jin, Chengcheng Shi, Xiao Du, He Zhang, Yaolei Zhang, Hanbo Li, Ting Luo, Pengxu Yan, Guang Liu, Xiangqun Chi, Xiaoxuan Tan, Liangwei Li, Guilin Liu, Xiaochuan Liu, Shijie Hao, Kai Han, Xiaoyun Huang, Shuai Sun, Jing Zhou, Mengjun Yu, Lingfeng Meng, Yue Chang, Rui Zhang, Kaiqiang Liu, Mengqi Zhang, Yong Zhao, Chang Li, Jiao Guo, Xinyu Guo, Jiahao Wang, Meiqi Lv, Haoyang Gao, Yujie Liu, Yue Song, Shengjun Wang, Yang Deng, Binjie Ouyang, Jinzhong Lin, Yingjia Yu, lynn Fink, Xianwei Yang, Xun Xu, Xin Liu

Subject: Biology And Life Sciences, Ecology, Evolution, Behavior And Systematics Keywords: Marine microorganisms, marine fungi, algae, marine plants, marine invertebrates, marine vertebrates, genome, metagenome

Online: 12 December 2018 (15:44:09 CET)

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