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Assessing the resistance, determining the nature of the resistance of the rice plant through the activity of three enzymes in rice: Catalase, Peroxydase and Phosphatase in the leaves of rice plants (the most active leaves of rice) rice plants) [2]. In addition, consider the role of Phosphatase in the fluctuations and the ability to accumulate P2O5 in soil and plants to see its role in rice's poison resistance in acid sulphate soil [4]. In other hand, Results shows that- High concentrations of toxins in the soil environment strongly inhibited the activity of Phosphatase enzymes in the roots, in the indicator leaves, and especially for rice, especially for plants that are less resistant to poisoning. But, Phosphatase enzyme in leaves has the effect on the providing energy for the plants to recover from poisoning. The activity of this enzyme is inversely correlated with the content of Al3+ in soil and Al3+ in plants. This proves that the antagonism between enzymes and toxins is evident, especially with Al3+ toxins. In other side, has highly toxic in the acid sulphate soil environment inhibits enzyme activity Peroxydase in rice roots. Under these conditions, peroxydase in the root plays a small role in helping the plant recover.We have sufficient basis to confirm that the enzyme Peroxydase in leaves plays an important role, against the harmful effects of toxins. When the toxin in the soil, in plants increased activity of this enzyme also increased higher than the control variant. Especially, when the toxicity increases, the Peroxydase enzyme in the rice leaves will also increase to resistant to toxicity ( + 280% (compared to the control); while the toxicty- non -resistant variety plants did not increase (compared to the control). When the toxicity decreased, Peroxydase activity in toxic-resistant plants was also higher than toxic non-resistant: This increased at + 643% for toxic-resistant rice compared to the control. While, in the weekly- resistant toxic- variety only increased + 314% (compared to the control).

The hydro-electric of the upstream Mekong (China) has been and will greatly impact on the down-stream areas, in which the Mekong Delta (Viet Nam) is suffering a lot of losses Drought due to water trapped by dams upstream together with Climate Change, Sea Level Rise are present, its impact on Vietnam Mekong Delta and given scenarios for the specialist units to propose. 12 dams in the Chinese division, they accumulate too large water; even causing floods for the people, for many years, causing drought in the downstream, especially the Mekong Delta of Vietnam: drought, lack of water for crops, livestock, for human livelihoods. Alluvium of the river stream is also retained (formerly 160,000,000.00 tons / year, this year, only 80,000,000.00 tons / year, so not only the loss of crop but also erosion of the shoreline and coastline. and saline intrusion, under the impact of climate change is rapidly increasing and very high, in addition, the Sulfate Acidification process also becomes fierce. Characteristics of the ecological system of acid sulfate soil in the Mekong Delta, it contains more than 1.7 million Ha with S content about 1.0-.8%. in normal condition, they are not toxic, but when dry, dehydrated, and air penetrates, they will sulfate acidification very strong, produces highly toxic (Al3+> 3000ppm), kills aquatic organisms and rice, and other agricultural crops. Drought due to water resources by upstream countries, mainly by China, will be increasingly fierce: 6 processes simultaneously occurring in this Ecosystem: 1- Drought, 2: sulfate acidification, 3. Saltwaterization, 4. Lack of alluvium and nutrition, 5- riverbank erosion, sedimentation of estuaries and seaports; and 6 – Coastal landslide (which in the past, accreted to the sea 100m /year, now, in contrast, erosion and sea intrusion 25m/year. Productivity of rice and fisheries has been and will continue to decrease.

The main purpose of the article is with the results of scientific and serious research to let the world know the enormous harm of upstream hydroelectric dams, mainly of China, causing huge, multifaceted, and global damage. impact on the downstream area, but especially on the Mekong Delta of Vietnam: "Wetland" will become "dead land"The development of hydro-electric projects of the up-stream Mekong countries has been and will be inevitable and greatly impact on the down-stream areas, in which the Mekong Delta is suffering a lot of losses., especially, for Viet Nam.. The Processes have been happening at the same time: The process of depleting water, for agriculture, for industry, for daily life and people's livelihoods. The processes at the same time, the effects that resonate with the process of climate change cause great harm. The drought has accelerated the acidification process, because the potential drought of acid sulfate soil (1,700,000 ha) will become intense, damaging the ecosystem and human livelihoods..The drought due to the construction of hydroelectric dams upstream (especially Lan Thuong river, China) makes the process of salinization with saline intrusion fierce (seawater 4gr/L) Many, penetrating into the interior fields more than 100KM, the harm is extremely great. If want to reduce the harm, the Mekong River Commission must ask the upstream countries to share it with the downstream

The development of hydro-electric projects of the upstream Mekong countries has been and will be inevitable and greatly impact on the downstream areas, in which the Mekong Delta is suffering a lot of losses, especially for Vietnam. The processes have been happening at the same time: the process of depleting water, for agriculture, for industry, for daily life, and people’s livelihoods. The processes, at the same time the effects that resonate with the process of climate change, cause great harm [1]. The drought has accelerated the acidification process, because the potential drought of acid sulfate soil (1,700,000 ha) will become intense, damaging the ecosystem and human livelihoods. The drought due to the construction of hydro-electric dams upstream (especially Lan Thuong River, China) makes the process of salinization with saline intrusion fierce (seawater 4 g/liter) [2]. Many, penetrating into the interior fields more than 100KM, the harm is extremely great. If they want to reduce the harm, the Mekong River Commission must ask the upstream countries to share it with the downstream.

Industrial ecology is a new field of environmental studies. It is based on industrial sustainability. Firstly, we discuss the industrial situation in Vietnam because our industrial sustainability is not very good. We assess various types of industries, what they release and their effects to the environment. Then, we show government policies for protecting the damaged environment. After an extensive discussion of the concept of industrial ecology in Vietnam, the report describes and illustrates the results of a field study on Vietnamese companies experiencing Environmental Management Systems, Life Cycle Assessment, Eco-Labeling and so on. Vietnamese companies are considering whether to take on these standards and the possible resulting inter-organizational co-operation.