土壤酶研究热点与趋势——基于知识图谱分析
Research Focus and Trends of Soil Enzyme—Based on the Knowledge Graph Analysis

段 淳, 刘元生   

有机化学研究 Vol.11 No.3, September 25 2023, PDF, HTML, XML DOI:10.12677/JOCR.2023.113013  被引量

微生物肥料在湖北利川的应用
Application of Microbial Fertilizer in Lichuan, Hubei

何 平, 冉 旭, 刘元生, 周富忠   

农业科学 Vol.13 No.4, April 12 2023, PDF, HTML, XML DOI:10.12677/HJAS.2023.134038  被引量

贵州茶园主产区不同母质茶园土壤微量元素空间差异特征
Spatial Differences of Trace Elements in Tea Garden Soils from Different Parent Materials in the Main Tea Producing Areas of Guizhou

龙天雨, 杨 丽, 谢 珊, 樊 洪, 任红军, 刘元生    科研立项经费支持

有机化学研究 Vol.11 No.1, March 31 2023, PDF, HTML, XML DOI:10.12677/JOCR.2023.111005  被引量

环境保护税提高重污染企业环境绩效了吗？——基于A股上市公司的证据
Has Environmental Protection Tax Improved the Environmental Performance of Heavily Polluting Enterprises?—Evidence Based on A-Share Listed Companies

刘长春   

运筹与模糊学 Vol.14 No.3, June 27 2024, PDF, , XML DOI:10.12677/orf.2024.143312  被引量

环保税的施行对重污染型企业环保投资的影响
Effect of Implementation of Environmental Protection Tax on Environmental Protection Investment of Heavily Polluting Enterprises

彭健翔   

应用数学进展 Vol.11 No.7, July 21 2022, PDF, HTML, XML DOI:10.12677/AAM.2022.117504  被引量

黄壤有机碳含量的影响因素研究进展及提升对策
Influencing Factors of Content of Organic Carbon in Cultivated Soils of Yellow Soil and Suggested Countermeasures

郭 振, 卢垟杰   

农业科学 Vol.9 No.6, June 19 2019, PDF, HTML, XML DOI:10.12677/HJAS.2019.96064  被引量

复合微生态制剂对盘锦稻蟹种养田水质和细菌群落的影响
Effects of Composite Microecological Preparations on Water Quality and Bacterial Community in Rice Crab Cultivation Fields of Panjin Rice

吴元浩, 姜玉声, 马悦欣, 常尚龙, 杜世瀛, 窦海琪, 张冰倩, 包鹏云   

海洋科学前沿 Vol.10 No.2, June 25 2023, PDF, HTML, XML DOI:10.12677/AMS.2023.102013  被引量

象山近海表层沉积物特征及成因
Characteristics and Sedimentary Origin of the Surface Sediment in the Xiangshan Offshore Area

李金铎, 余海俊   

海洋科学前沿 Vol.10 No.2, June 27 2023, PDF, HTML, XML DOI:10.12677/AMS.2023.102014  被引量