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浏览/检索结果: 共5条，第1-5条 帮助 限定条件 学科主题：Environmental Sciences     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 Estimation of degraded grassland aboveground biomass using machine learning methods from terrestrial laser scanning data 期刊论文 ECOLOGICAL INDICATORS, 2020, 卷号: 108 作者:  Xu, Kexin;  Su, Yanjun;  Liu, Jin;  Hu, Tianyu;  Jin, Shichao 收藏  |  浏览/下载：25/0  |  提交时间：2022/03/01 Aboveground biomass (AGB)  Degraded grassland  Machine learning  Northern agro-pastoral ecotone  Terrestrial laser scanning (TLS)   No significant changes in topsoil carbon in the grasslands of northern China between the 1980s and 2000s 期刊论文 SCIENCE OF THE TOTAL ENVIRONMENT, 2018, 卷号: 624, 页码: 1478-1487 作者:  Liu, Shangshi;  Yang, Yuanhe;  Shen, Haihua;  Hu, Huifeng;  Zhao, Xia 收藏  |  浏览/下载：11/0  |  提交时间：2022/02/25 Alpine grasslands  Artificial neural network  Climate change  Random forests  Soil organic carbon  Temperate grasslands   Dynamic patterns of nitrogen: Phosphorus ratios in forest soils of China under changing environment 期刊论文 JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES, 2016, 卷号: 121, 期号: 9 作者:  Chen, Leiyi;  Li, Pin;  Yang, Yuanhe 收藏  |  浏览/下载：0/0  |  提交时间：2022/07/05 artificial neural network  forest ecosystems  nitrogen-phosphorus interactions  nitrogen:phosphorus ratio  soil inventory  stoichiometric shift   Dynamic patterns of nitrogen: Phosphorus ratios in forest soils of China under changing environment 期刊论文 JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES, 2016, 卷号: 121, 期号: 9, 页码: 2410-2421 作者:  Chen, Leiyi;  Li, Pin;  Yang, Yuanhe 收藏  |  浏览/下载：0/0  |  提交时间：2022/07/08 artificial neural network  forest ecosystems  nitrogen-phosphorus interactions  nitrogen:phosphorus ratio  soil inventory  stoichiometric shift   Artificial neural network modeling of dissolved oxygen in the Heihe River, Northwestern China 期刊论文 ENVIRONMENTAL MONITORING AND ASSESSMENT, 2013, 卷号: 185, 期号: 5, 页码: 4361-4371 作者:  Wen, Xiaohu;  Fang, Jing;  Diao, Meina;  Zhang, Chuanqi 收藏  |  浏览/下载：18/0  |  提交时间：2013/08/15 Artificial Neural Network  Dissolved Oxygen  Modeling  Heihe River