Physiological and biochemical characteristics of these two varieties were evaluated under intensive drought conditions according to the activities of antioxidants as POX, APX, CAT, SOD and their isozyme profiles.
For example, within the same climatic zone, populations occupying habitats in open areas are more likely to be exposed to short-term, intensive drought than those in forest or woodland areas (Sota and Mogi 1992).
Drought, intensive agriculture, excessive grazing, and biological invasion are recognized as the major threats with significative negative environmental impacts on plant diversity (Pegado et al. 2006; Andrade et al. 2008; Andrade et al. 2009).
However, the southern China had less than half of the average rainfall in that summer despite more tropical cyclones (TCs) than the average and, as a result, suffered a lot of natural disasters including intensive heat wave, drought and wild fire (Levinson and Waple 2004).
Our study provides evidence of the ecological decline of an ecosystem, as a consequence of the loss of a keystone species and extreme environmental pressures imposed by overgrazing, intensive agriculture, and drought.
Average climate conditions, such as mean temperature and annual precipitation, and the occurrences of extreme weather events, such as droughts and intensive precipitation, have stronger predictive powers of producers' irrigation decisions than the coefficients of variation.
The ALADIN model simulation shows similar trends, however, this model projects more intensive increase of the drought hazard.
The most important change is the intensive increase of the drought hazard, which makes this hazard probably the most serious hazard of the region.
The state will also partner with local governments to rid California of 50 million square feet of lawns and replace the water-intensive greenery with drought-tolerant landscaping.
But as one heads south, it is increasingly tapped out, drained by ever more intensive farming and, lately, by drought.
