黑土区冬季农田及其周边荒草地土壤水分空间分布特征Spatial Distribution of Soil Moisture in Farmland and Its Surrounding Wasteland in Black Soil Area in winter
朱家驹
自然科学Vol.12 No.2, 全文下载: PDF HTML XML DOI:10.12677/ojns.2024.122039, March 29 2024
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, 全文下载: PDF HTML XML DOI:10.12677/JOCR.2023.113013, September 25 2023
北京典型矿区恢复过程中土壤环境因子与植物群落分布的关系Relationship between Soil Environmental Factors and Plant Communities Distribution in the Process of Ecological of Beijing Typical Mining Areas
于小飞, 张 亮, 贾学桦, 刘 枫
环境保护前沿Vol.14 No.2, 全文下载: PDF HTML XML DOI:10.12677/aep.2024.142052, April 30 2024
某橡胶企业地块污染土壤危险特性鉴别实例分析及研究Case Analysis and Research on Identification of Hazardous Characteristics of the Contaminated Soil in a Rubber Enterprise Plot
贾彦来, 张 刚, 王京敏
环境保护前沿Vol.14 No.2, 全文下载: PDF HTML XML DOI:10.12677/AEP.2024.142026, March 20 2024
某工业纯碱企业污染土壤危险特性鉴别实例分析及研究Case Analysis and Research on Identification of Hazardous Characteristics of Contaminated Soil in the Industrial Soda Enterprise
世界生态学Vol.12 No.3, 全文下载: PDF HTML XML DOI:10.12677/IJE.2023.123039, August 16 2023
初中数学教材习题的比较研究——以北师版与苏科版“勾股定理”章节为例A Comparative Study of Exercises in Junior Middle School Mathematics Textbooks—The Chapter “Pythagorean Theorem” in the BNUP and the JPSP as an Example
张进科, 杨 祺
理论数学Vol.14 No.6, 全文下载: PDF HTML XML DOI:10.12677/pm.2024.146222, June 11 2024