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浏览/检索结果: 共15条，第1-10条 帮助 限定条件 内容类型：EI期刊论文     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 Simulating the impact of watershed management for surface water quality protection: A case study on reducing inorganic nitrogen load at a watershed scale EI期刊论文 2014 作者:  Tao Fulu 收藏  |  浏览/下载：29/0  |  提交时间：2014/12/31 Economic and social effects  Cost effectiveness  Forestry  Nitrogen  Nutrients  Regression analysis  Soil conservation  Surface waters  Water conservation  Water management  Water pollution  Water quality  Watersheds   Quantifying the relationship between urban development intensity and carbon dioxide emissions using a panel data analysis EI期刊论文 2014 作者:  Ma Haitao;  Fang Chuanglin 收藏  |  浏览/下载：38/0  |  提交时间：2014/12/31 Emergy evaluation of agricultural sustainability of Northwest China before and after the grain-for-green policy EI期刊论文 2014 作者:  Wang Xiuhong 收藏  |  浏览/下载：25/0  |  提交时间：2014/12/31 Grain (agricultural product)  Agriculture  Food supply  Sustainable development   Assessing the impact of the sloping land conversion programme on rural sustainability in Guyuan, Western China EI期刊论文 2014 作者:  Zhen L.;  Yang L. 收藏  |  浏览/下载：23/0  |  提交时间：2014/12/31 Sustainable development  Economic and social effects  Environmental impact  Erosion  Land use  Reforestation  Soils   A knowledge-based similarity classifier to stratify sample units to improve the estimation precision EI期刊论文 2009 作者:  Li Lianfa 收藏  |  浏览/下载：10/0  |  提交时间：2012/06/11 Classifiers  Cluster analysis  Estimation  Image reconstruction  Knowledge based systems  Labels  Learning systems  Remote sensing  Sampling   The evolution of groundwater governance: Productivity, equity and changes in the level of China's aquifers EI期刊论文 2009 作者:  Wang J.;  Wang J.;  Huang Q. 收藏  |  浏览/下载：13/0  |  提交时间：2012/06/11 Aquifers  Crops  Hydrogeology  Privatization  Productivity   Biofuels and the Greater Mekong Subregion: Assessing the impact on prices, production and trade EI期刊论文 2009 作者:  Qiu Huanguang;  Yang Jun;  Huang Jikun 收藏  |  浏览/下载：25/0  |  提交时间：2012/06/11 Agriculture  Commerce  Costs  Economics  Land use   Water management institutional reform: A representative look at northern China EI期刊论文 2009 作者:  Huang Jikun;  Wang Jinxia 收藏  |  浏览/下载：14/0  |  提交时间：2012/06/11 Contractors  Contracts  Management  Societies and institutions  Water management   Understanding the water crisis in Northern China: What the government and farmers are doing EI期刊论文 2009 作者:  Huang Jikun;  Wang Jinxia 收藏  |  浏览/下载：45/0  |  提交时间：2012/06/11 Aquifers  Groundwater  Hydrogeology  Underground reservoirs   An information-fusion method to identify pattern of spatial heterogeneity for improving the accuracy of estimation EI期刊论文 2008 作者:   收藏  |  浏览/下载：17/0  |  提交时间：2012/06/11 Decision making  Decision support systems  Decision theory  Decision trees  Estimation  Fusion reactions  Information management  Nuclear physics  Search engines  Set theory  Surveys  Trees (mathematics)