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浏览/检索结果: 共30条，第1-10条 帮助 限定条件 发表日期：2021     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 Crop yield forecasting and associated optimum lead time analysis based on multi-source environmental data across China 期刊论文 AGRICULTURAL AND FOREST METEOROLOGY, 2021, 卷号: 308, 页码: 12 作者:  Li, Linchao;  Wang, Bin;  Feng, Puyu;  Wang, Huanhuan;  He, Qinsi 收藏  |  浏览/下载：79/0  |  提交时间：2021/11/05 Crop yield forecast  Climate extremes  Remote sensing  Random forest  Lead time  Variable importance   Long-term effects of nitrogen deposition on carbon assimilation characteristics in the past three decades in a typical subtropical watershed 期刊论文 AGRICULTURAL AND FOREST METEOROLOGY, 2021, 卷号: 308, 页码: 10 作者:  Wang, Shuoyue;  Lu, Yao;  Wen, Xuefa;  Sun, Kun;  Jia, Junjie 收藏  |  浏览/下载：138/0  |  提交时间：2021/11/05 Nitrogen deposition  Carbon assimilation  Water use efficiency  Carbon-Nitrogen-Water coupling cycle  Gross primary productivity  Subtropical watershed   Declining human activity intensity on alpine grasslands of the Tibetan Plateau 期刊论文 JOURNAL OF ENVIRONMENTAL MANAGEMENT, 2021, 卷号: 296, 页码: 9 作者:  Li, Meng;  Zhang, Xianzhou;  Wu, Jianshuang;  Ding, Qiannan;  Niu, Ben 收藏  |  浏览/下载：93/0  |  提交时间：2021/11/05 Alpine grassland  Climate change  Ecological engineering projects  Human activities  Net primary production  Tibetan plateau   Scaling up agriculture? The dynamics of land transfer in inland China 期刊论文 WORLD DEVELOPMENT, 2021, 卷号: 146, 页码: 10 作者:  Rogers, Sarah;  Wilmsen, Brooke;  Han, Xiao;  Wang, Zoe Ju-Han;  Duan, Yuefang 收藏  |  浏览/下载：38/0  |  提交时间：2021/11/05 Agrarian change  Land market  Political economy  Smallholders  Agricultural policy   Understanding the contradiction between rural poverty and rich cultivated land resources: A case study of Heilongjiang Province in Northeast China 期刊论文 LAND USE POLICY, 2021, 卷号: 108, 页码: 10 作者:  Li, Dongmei;  Yang, Yuanyuan;  Du, Guoming;  Huang, Shanlin 收藏  |  浏览/下载：19/0  |  提交时间：2021/11/05 Rural poverty  Spatial poverty  Cultivated land  Northeast China  Geographical capital  Land use policy  Targeted poverty alleviation  Rural revitalization   Spatial-temporal evolution of agricultural ecological risks in China in recent 40 years 期刊论文 ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, 2021, 页码: 16 作者:  Zou, Lilin;  Wang, Yongsheng;  Liu, Yansui 收藏  |  浏览/下载：76/0  |  提交时间：2021/11/05 Agricultural pollution  Agricultural sustainability  Ecological risks  Spatial-temporal pattern  Control strategies   Research on Identification of Multiple Cropping Index of Farmland and Regional Optimization Scheme in China Based on NDVI Data 期刊论文 LAND, 2021, 卷号: 10, 期号: 8, 页码: 16 作者:  Li, Tingting;  Wang, Yanfei;  Liu, Changquan;  Tu, Shuangshuang 收藏  |  浏览/下载：98/0  |  提交时间：2021/11/05 NDVI  land use transition  multiple cropping index  farmland  regional optimization scheme   County-rural revitalization spatial differences and model optimization in Miyun District of Beijing-Tianjin-Hebei region 期刊论文 JOURNAL OF RURAL STUDIES, 2021, 卷号: 86, 页码: 724-734 作者:  Li, Jintao;  Liu, Yansui;  Yang, Yuanyuan;  Jiang, Ning 收藏  |  浏览/下载：102/0  |  提交时间：2021/11/05 Rural revitalization  Spatial-multivariate  Model optimization  Sustainable development  Urban-rural integration   Spatiotemporal changes in the state of food security across mainland china during 1990-2015: A multi-scale analysis 期刊论文 FOOD AND ENERGY SECURITY, 2021, 页码: 15 作者:  Qiao, Jianmin;  Cao, Qian;  Zhang, Zhengtao;  Cao, Zhi;  Liu, Haimeng 收藏  |  浏览/下载：58/0  |  提交时间：2021/11/05 agricultural policies  crop modeling  food production  multiple scales  purchasing power  security levels   A large-scale shift of cropland structure profoundly affects grain production in the cold region of China 期刊论文 JOURNAL OF CLEANER PRODUCTION, 2021, 卷号: 307, 页码: 13 作者:  Pan, Tao;  Zhang, Chi;  Kuang, Wenhui;  Luo, Geping;  Du, Guoming 收藏  |  浏览/下载：31/0  |  提交时间：2021/08/19 Land transformation  Grain production  Food structural security  State and private farms  Cold China