搜索结果: 1-10 共查到“农学总论 ecosystems”相关记录10条 . 查询时间(0.046 秒)
2017农业生态系统与环境国际研讨会（International Workshop on Agro-Ecosystems and Environment）
2017 农业生态系统与环境 国际研讨会
2017/2/15
气候变暖、土壤侵蚀污染退化和水体污染是威胁人类可持续生存最重要的全球环境问题。为了满足人口增长对粮食和蛋奶肉的需求，高强度的集约化农业生产与不合理的农业土地利用管理，导致水土污染和农业生态系统功能退化，严重威胁人类的生存环境。如何提升农业生态系统的功能与改善人类生存的自然环境质量，需要深刻理解农业生产活动是如何影响自然环境，评价变化的环境对农业生态系统的效应。该研讨会邀请国际SCI刊物《农业，生态...
福建农林大学作物科学学院农业生态学课件 What is agriculture,ecology,ecosystems
福建农林大学作物科学学院 农业生态学 课件 What is agriculture,ecology,ecosystems
2015/9/23
福建农林大学作物科学学院农业生态学课件 What is agriculture,ecology,ecosystems。
Spatial-Temporal Mapping of Agro-Ecosystems and the need to build Thematic Legends
Remote Sensing Agriculture Mapping Land Use Classification Land Cover Generalization Monitoring
2015/7/30
fication systems, (ii) geomatics, being the scientific management of spatial information, and (iii) monitoring of climate, land cover
and land use changes. Simultaneously the spatial and temporal qu...
RELATIONSHIPS BETWEEN PRIMARY PRODUCTION AND CROP YIELDS IN SEMI-ARID AND ARID IRRIGATED AGRO-ECOSYSTEMS
Agriculture Crop GIS Analysis
2015/5/6
In semi-arid areas within the MENA region, food security problems are the main problematic imposed. Remote sensing can be a promising too early diagnose food shortages and further prevent the popula...
What agricultural 'ecosystems on steroids' are doing to the air（图）
air agricultural 'ecosystems
2014/12/1
ANN ARBOR—In a study that identifies a new, "direct fingerprint" of human activity on Earth, scientists have found that agricultural crops play a big role in seasonal swings of carbon dioxide in the a...
TRENDS IN RESEARCH ON THE POSSIBLE EFFECTS OF CLIMATE CHANGE CONCERNING AQUATIC ECOSYSTEMS WITH SPECIAL EMPHASIS ON THE MODELLING APPROACH
ecological modelling model system community ecology global warming seasonal dynamics
2010/3/26
Knowledge on the expected effects of climate change on aquatic ecosystems is defined by three
ways. On the one hand, long-term observation in the field serves as a basis for the possible changes; on ...
Rice-Ecosystems of India in the Context of Methane Emission
Rice-ecosystems Methane Emission Rice Categories Remote Sensing
2016/4/8
The rice land is linked to the climate change due to its methane emission potential. The systems of growing rice and associated soil and crop management practices that have evolved are varied and comp...
Evaluation of Land Use Potential and Suitability of Ecosystems in Antakya for Reforestation, Recreation, Arable Farming and Residence
Land suitability evaluation land use planning urban residence reforestation recreation arable farming
2009/1/13
It is essential that land use decisions made by local administrations be compatible with sustainable use and management principles of natural resources. In this study, we evaluated the use potential a...
ECOSYSTEMS AS CLIMATE CONTROLLERS – BIOTIC FEEDBACKS
climate control climate change biotic feedbacks ecosystem community
2010/3/25
There is good evidence that higher global temperature will promote a rise of green house gas
levels, implying a positive feedback which will increase the effect of the anthropogenic emissions on glob...
METHANE EMISSION FROM TWO DIFFERENT RICE ECOSYSTEMS (AHU AND SALI) AT LOWER BRAHMAPUTRA VALLEY ZONE OF NORTH EAST INDIA
Assam India rainfed ecosystem water regime growth parameters
2010/3/25
Monocropping of rice is practiced in Assam (situated at north east part of India) throughout the year in different agro-ecosystems (upland and lowland) primarily under rainfed conditions. The estimati...