Nutrient enrichment changes water transport structures of savanna woody plants in Brazil
Nutrient enrichment of a neotropical savanna on dystrophic soil resulted in changes in structural anatomical traits in leaves and sapwood. Increased xylemic structures resulted in higher xylem conductivity. While decreasing in stomata length minimized stomatal...
Improving eutrophication indicators based on nitrogen transport and retention in watersheds
Excessive nitrogen (N) use in agriculture, industry, and household waste leads to its dissemination throughout the environment, causing eutrophication in both freshwater and coastal areas. To contextualize the environmental impacts of Ninduced eutrophication with...
Reducing future nitrogen pollution in rivers of the Bay of Bengal
We analyse past and future trends in nitrogen (N) export by rivers draining into the Bay of Bengal (BOB) from sources at a sub-basin scale. Many rivers of BOB were polluted in 2010. Over half of N in these rivers was from anthropogenic sources. In the future, rivers...
Nitrate Leaching Potential for Drip Irrigated Cauliflower
Nitrate contamination in drinking water continues to be a significant unresolved environmental issue worldwide, and in agricultural regions of California. This study focused on comparing the effects of different fertilizer types and rates on biomass, yield and nitrate...
Nitrate accumulation in semiarid apple orchard on the Loess Plateau of China
Understanding of nitrate accumulation in soil profiles of semiarid regions is helpful to assess the environmental risks associated with nitrate. In the 5-year, 10-year and 20-year apple orchard, the nitrate accumulation were 169, 1683 and 1976 kg N ha−1 . A large...
Simulating 50 years of land management and groundwater flow
Aquatic ecosystems can be strongly distorted by high nitrate inputs from intensive agriculture. Starting in the early 90-ies, the Flemish government has imposed increasingly stringent fertilization regulations on farmers in order to comply with the EU Nitrates...
Nitrate accumulation in an intensive small agricultural catchment: challenges and solutions
Nitrogen (N) fertilization in the intensive horticultural systems is usually high, especially in China during past decades. We have studied nitrate accumulation in soil profiles and nitrate in groundwater of a small catchment dominated by kiwifruit orchard at northern...
Effects of available nitrogen on numbers of native herbaceous plants in Aomori, Japan
Many herbaceous plants are threatened with extinction due to decrease in grassland in Japan. We investigated the factors affecting herbaceous plant communities in Towada, Aomori, Japan, especially the relationship with soil chemistry. We conducted vegetation surveys...
The Nitrogen Legacy: Long-term Effects of Water Pollution on Human Capital
One of the biggest risks to surface waters is the deterioration of their quality as a result eutrophication. The main sources of nutrient loads causing eutrophication are agriculture and municipal wastewater. In small and medium-sized wastewater treatment plants in...
Root system architecture variability and nitrate reductase activity in wheat genotypes for nitrogen use efficiency
Selection of nitrogen (N) efficient genotypes based on N assimilating enzymes and root architectural traits are among the strategies to achieve improved nitrogen use efficiency (NUE). Twenty wheat genotypes were evaluated in this study out of which three genotypes...