In many areas of the world, particularly in developing nations, a large portion of the population works in agriculture and food production. These areas often suffer from food insecurity as the work is often still largely done by hand and the crops produced are often cash crops that need to...
enhance productivity, and improve food security. These conservation practices include labor-intensive physical measures such as terracing, check-dams/water catchments, or vegetative or biological measures like afforestation and plowing along the contour. Physical measures involve building structures...
Arid zones are generally defined as regions with insufficient water balance, characterized by low precipitation that is insufficient to meet the needs of vegetation and soil, leading to dry soil and water scarcity (Chen et al., 2018). This study adheres to the principles of the Köppen ...
参考译文(沪江网校版):Dujiangyan, located on the Minjiang River in the west of Chengdu Plain, about 50km away from Chengdu City, was built in the third century BC. Its uniqueness is that it does not need dikes to regulate water flow. For more than 2000 years, it has been playing an ef...
Water Scarcity: Too Much in One Place, Not Enough in Another Water’s a funny thing. Sometimes there’s too much of it, and other times there’s not enough. China’s got rivers that could make the Mississippi blush, but they’ve also got parts of the country where you’d be hard-...
Another group of climate-related concerns with an established place in security strategies are those that refer to direct impacts on ecosystems or resources, such as climate-change-related damage to water, food supplies, and ecosystems or sea level rise. Besides natural disasters, other environmental...
Plant–microbiome interactions: how does the plant microbiome affect stress tolerance? Plant adaption: what is the plasticity of the epigenome of plants? Plant stress responses: how do plants cope with combined stressors? Ecosystem services: what natural materials could be invested in for a more su...
energy, and first-generation biofuels -- which are refined by burning other fuels -- fall well short of carbon neutrality. Worse, as global food crops literally lose ground to biofuel production, mounting scarcity drives up food prices, hunger and political instability [source:The New York Times...
For example, even if air and water are essential resources for life giving them high “intrinsic” value, nevertheless under most circumstances they have no economic value due to their sufficiency levels in the environment (Ikert, 2001). They only obtain an economic value in cases of scarcity ...
They are just like physiological and security needs of Maslow hierarchy need. Physiological needs (or survival needs) are basic needs essential for the survival of human beings like food, water, shelter, rest and clothes. Similarly, security need involves protection against unexpected events and ...