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浏览/检索结果: 共259条，第1-10条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择提交时间升序提交时间降序发表日期升序发表日期降序题名升序题名降序作者升序作者降序 An integrated approach for quantifying trace metal sources in surface soils of a typical farmland in the three rivers plain, China 期刊论文  OAI收割 ENVIRONMENTAL POLLUTION, 2023, 卷号: 337, 页码: 122614 作者:  Meng, Yingyi;  Kong, Fanpeng;  Liu, Xiaojie;  Dai, Lijun;  Liu, Hongbo   |  收藏  |  浏览/下载：7/0  |  提交时间：2023/12/04 Trace metals  Agricultural soil  Self-organizing map  Positive matrix factorization  Source identification   Spatial and temporal dynamics of cropland in the Sanjiang Plain from 2014 to 2020 based on annual 30 m crop data layers 期刊论文  OAI收割 JOURNAL OF AGRICULTURAL SCIENCE, 2023, 卷号: N/A 作者:  Jin, Cui;  Zhang, Zeyu;  Cai, Hongyan;  Cao, Ge;  Li, Xintao   |  收藏  |  浏览/下载：15/0  |  提交时间：2023/04/06 Decision tree classification  food security  land cover and land use change  remote sensing-based crop mapping  spatio-temporal dynamic analysis   Analysis of the Spatial-Temporal Pattern of the Newly Increased Cultivated Land and Its Vulnerability in Northeast China 期刊论文  OAI收割 LAND, 2023, 卷号: 12, 期号: 4, 页码: 796 作者:  Du, Guoming;  Wang, Xiaoyang;  Wang, Jieyong;  Liu, Yaqun;  Zhang, Haonan   |  收藏  |  浏览/下载：1/0  |  提交时间：2024/01/04 newly increased cultivated land  spatial-temporal pattern  cultivated land vulnerability  food security   Spatial and temporal dynamics of cropland in the Sanjiang Plain from 2014 to 2020 based on annual 30m crop data layers 期刊论文  OAI收割 JOURNAL OF AGRICULTURAL SCIENCE, 2023, 卷号: 161, 期号: 2, 页码: 12 作者:  Jin, Cui;  Zhang, Zeyu;  Cai, Hongyan;  Cao, Ge;  Li, Xintao   |  收藏  |  浏览/下载：10/0  |  提交时间：2024/03/25 Decision tree classification  food security  land cover and land use change  remote sensing-based crop mapping  spatio-temporal dynamic analysis   Spatial and Temporal Variability of Soil Erosion in Northeast China from 2000 to 2020 期刊论文  OAI收割 REMOTE SENSING, 2023, 卷号: 15, 期号: 1 作者:  Wang, Shihao;  Xu, Xinliang;  Huang, Lin   |  收藏  |  浏览/下载：21/0  |  提交时间：2023/02/03 soil erosion  RUSLE  RWEQ  Northeast China  spatial and temporal variability   Proportional allocation with soil depth improved mapping soil organic carbon stocks 期刊论文  OAI收割 SOIL & TILLAGE RESEARCH, 2022, 卷号: 224, 页码: 14 作者:  Zhang, Mo   |  收藏  |  浏览/下载：28/0  |  提交时间：2022/11/09 Soil organic carbon density  Equal-area spline function  Log -ratio transformation  Random forest  Generalized linear model  Proportional allocation   Proportional allocation with soil depth improved mapping soil organic carbon stocks 期刊论文  OAI收割 SOIL & TILLAGE RESEARCH, 2022, 卷号: 224, 页码: 14 作者:  Zhang, Mo;  Shi, Wenjiao;  Ren, Yongxing;  Wang, Zongming;  Ge, Yong   |  收藏  |  浏览/下载：12/0  |  提交时间：2022/11/09 Soil organic carbon density  Equal-area spline function  Log -ratio transformation  Random forest  Generalized linear model  Proportional allocation   Effects of climate changes on net primary productivity variation in the marsh area of the Sanjiang Plain 期刊论文  OAI收割 FRONTIERS IN ECOLOGY AND EVOLUTION, 2022, 卷号: 10, 页码: 11 作者:  Yan, Fengqin   |  收藏  |  浏览/下载：14/0  |  提交时间：2022/11/09 net primary productivity  marsh  the Sanjiang Plain  climate change  geographical detection method   Effects of climate changes on net primary productivity variation in the marsh area of the Sanjiang Plain 期刊论文  OAI收割 FRONTIERS IN ECOLOGY AND EVOLUTION, 2022, 卷号: 10, 页码: 11 作者:  Yan, Fengqin   |  收藏  |  浏览/下载：13/0  |  提交时间：2022/11/09 net primary productivity  marsh  the Sanjiang Plain  climate change  geographical detection method   Spatiotemporal Heterogeneity Monitoring of Cropland Evolution and Its Impact on Grain Production Changes in the Southern Sanjiang Plain of Northeast China 期刊论文  OAI收割 LAND, 2022, 卷号: 11, 期号: 8, 页码: 18 作者:  Pan, Tao;  Zhang, Ru   |  收藏  |  浏览/下载：8/0  |  提交时间：2022/09/26 land evolution  landscape  food security  southern Sanjiang Plain of China