Pham Huu Ty

University of Agriculture, Hue University · Science-technology and international cooperation

Để quy hoạch hoạt động nuôi trồng thủy sản, việc lập bản đồ chính xác vùng nuôi từ ảnh viễn thám là mục tiêu quan trọng. Tuy nhiên, quá trình này còn hạn chế như độ chính xác phân loại dao động theo nhiều địa điểm, ảnh viễn thám sử dụng có độ phân giải chưa cao, phương pháp phân loại phức tạp. Nghiên cứu này sử dụng phương pháp khoanh vùng hướng đố...

Millions of people have been displaced and resettled worldwide to build hydroelectric dams. Most of the previous studies show that the livelihoods of the resettled people have been getting worse, but these studies have only been evaluated over a short time frame and only selected two-time periods for assessment, including before and after displacem...

Floods are the most dreaded danger for household livelihoods, particularly those in coastal and estuary regions, due to their tremendous destruction. Proper assessment of the livelihood vulnerability of these communities thus becomes imperative for prioritizing policies. Applying the LVI-IPCC framework, this study investigates the flood-induced vul...

The widespread development of hydropower dams has led to involuntary displacement, which has become a significant global issue. In Vietnam, around 70,000 households were displaced in 2020, causing uncertainty and social disruption. The aim of this study is to analyze the effects of resettlement on the livelihood and food security of displaced house...

Nghiên cứu này sử dụng ảnh vệ tinh Landsat 8 OLI để đánh giá hiện trạng phát triển rừng keo, rừng thông và bước đầu tìm hiểu về thực trạng sức khỏe rừng keo, rừng thông thông qua chỉ số thực vật (Normalized Difference Vegetation Index -NDVI) tại Thị xã Hương Thủy, tỉnh Thừa Thiên Huế. Phương pháp nghiên cứu bao gồm thu thập số liệu thứ cấp, số liệu...

Wetlands are highly productive ecosystems with the capability of carbon sequestration, providing an effective solution for climate change. Recent advancements in remote sensing have improved the accuracy in the mapping of wetland types, but there remain challenges in accurate and automatic wetland mapping, with additional requirements for complex i...

“How to gauge the resilience of a household’s livelihood?” and “who is resilience for?”; as the world’s volatility increases, especially with unprecedented changes in climate, interest in these questions continues to rise. While many previous conventional attempts to measure resilience at the household level have largely employed the “objective” to...

This study investigated the impacts of the COVID-19 pandemic on livelihoods of households with migration workers, who returned home to the central coastal region during the peak disease outbreak in Vietnam. Five hundred and twenty-nine households with returned migration workers aged eighteen and above in the coastal areas of Quảng Bình, Quảng Trị,...

Seagrass meadow is a well-known blue carbon ecosystem, providing important ecosystem services, that is being degraded in many locations worldwide. The contribution of seagrass to the global blue-carbon inventory is poorly understood due to the challenges of paucity of assessement and low accuracy of the estimates of carbon stock in seagrass meadows...

In April 2016, four provinces of Vietnam were struck by one of the largest manmade environmental incidents in Vietnam. Through a discharge of toxic chemicals by Formosa Ha Tinh Steel Corporation, oceanic waters along Vietnam’s central coast were severely polluted. Consequently, the livelihoods of over 510,000 people living in coastal communities we...

Nghiên cứu này sử dụng ảnh vệ tỉnh Landsat LC8 của các năm 2013, 2014, và 2019 để giải đoán phân loại lớp phủ cây cao su ở huyện Bố Trạch, tỉnh Quảng Bình và đánh giá biến động diện tích cao su sau ảnh hưởng của bão số 10 (tên là Wutip) năm 2013. Kết quả giải đoán còn sử dụng để đánh giá thiệt hại diện tích trồng cây cao su do ảnh hưởng của bão số...

Để đánh giá và giám sát biến động sử dụng đất trong phạm vi diện tích lớn, không thể làm theo phương pháp truyền thống mà cần có sự hỗ trợ của các phương tiện giám sát từ xa, đó là các ảnh viễn thám từ vệ tinh. Nghiên cứu này ứng dụng dữ liệu ảnh viễn thám Landsat TM 5, Landsat LC 8 và GIS để đánh giá biến động về lớp phủ mặt đất ở huyện Lệ Thủy, t...

Quang Binh province, Vietnam has a large rubber area, more than 17000ha before 2013. However, due to the impact of many typhoons, more than 7000ha of rubber trees have been damaged so far. For sustainable rubber tree development, a planning support model is needed. The application of GIS and remote sensing is capable of supporting scenarios for pla...

Du lịch dựa vào cộng đồng (DLCĐ) được kỳ vọng sẽ mang lại lợi ích kép cho cộng đồng địa phương và bảo vệ môi trường. Tuy nhiên, DLCĐ vẫn còn nhiều hạn chế và phát triển không đồng đều ở Việt Nam. Mục đích của bài viết này nhằm (1) tìm hiểu hiện trạng DLCĐ tại tỉnh Thừa Thiên Huế; và (2) phân tích các bên liên quan đến DLCĐ; từ đó (3) tìm ra những t...

Đề tài nghiên cứu nhằm làm rõ được thực trạng sử dụng đất và sinh kế của người dân tái định cư để có cơ sở đề xuất giải pháp bố trí đất đai hợp lý cho việc phát triển sinh kế của người dân tái định cư thủy điện Bình Điền. Các phương pháp nghiên cứu đã sử dụng bao gồm: điều tra thu thập số liệu thứ cấp, sơ cấp; phỏng vấn chuyên gia và người am hiểu...

In recent years, water for agricultural production gradually became a significant challenge in the context of climate change in Vietnam. Sustainable solutions are required, which consider the use of resources for both human needs and ecology, and that account for the equitable distribution and the livelihood of the farmers now and in the future. In...

- Vietnamese law requires natural forest land that has been converted to hydropower projects to be compensated by tree replantation. This obligation does not automatically lead to good results. From 2006 to 2013, only 3.7 percent of the affected areas had been subject to replantation. Since 2014, the rate of replantation has significantly improved,...

The study examined the natural and social capital of Bo Hon villagers in central Vietnam, before and after resettlement within Binh Thanh commune due to the building of Binh Dien Hydroelectric dam on the Huu Trach River. (1) Background: The two-fold aim was to develop solutions to the impacts of resettlement on natural and social capital, and strat...

Landsat 5TM and Landsat OLI 8 images are main inputs to evaluate the changing of land cover surface, especially forest area in Dai Loc district, Quang Nam province from 1995 to 2014. During studied period, the forest cover area (including natural forest and plantation forest) in Dai Loc declined seriously and almost of them transferred to other lay...

Forced resettlement due to hydropower dam construction in Vietnam continues to result in poor outcomes, in part due to the poor productivity of replacement agricultural land, poor local governnance, and constrained access by displaced farmers to forest land and fisheries. This paper critically examines three recent initiatives in Vietnam that promi...

The last two years have seen a huge amount of academic, policy-making and media interest in the increasingly contentious issue of 'land grabbing' - the large-scale acquisition of land in the global South. It is a phenomenon against which locals seem defenseless, and one about which multilateral organizations such as the World Bank as well as civil-...

Under Vietnam’s State land ownership regime, the Government holds supreme authority over compulsory land acquisition. The results show that many improvements in land acquisition policies have been made, but poor implementation measures largely cannot prevent or even mitigate the adverse impacts on displaced persons. In particular, ineffective compe...

aBStract Climate-related and climate change-related events are causing problems for agricultural communities in many developing countries, and are requiring new practices that enable these communities to adapt. In planning adaptation practices, two quite different data sources have been common — top-down digital sources such as those provided by re...

Climate change is happening on all fiercely territorial; affect many areas of production and life of humans. For an agricultural economy in which rice have an important role, the impact of climate change is very large impact not only on productivity; plant variety but also the dominant loss farmland. This study was conducted in Phu An, Phu My and T...

Climate-related and climate change-related events are causing problems foragricultural communities in many developing countries, and are requiringnew practices that enable these communities to adapt. In planning adaptationpractices, two quite different data sources have been common - top-downdigital sources such as those provided by remote sensing,...

This research aims to integrate the potential soil loss into the regulation of DARD about the classifying the protection forest. Therefore, we tried to produce a pilot and then introduce our steps which can be used as reference procedure for the planners. The result was validated in several workshops between us and planners in Thua Thien Province,...

Characteristics of Pliocene - Quaternary geology and Geoengineering in the Center and Southeast parts of Continental Shelf of VietnamVietnam has a large continental shelf with complicated geological characteristics. The study of the Pliocene-Quaternary sediments is very important for understanding the shallow geological characteristics, potential o...

Policies promoting the development of sustainable energy sources, particularly hydropower, can paradoxically create problems of poverty and food insecurity for displaced people. Securing electricity for economic development does not necessarily bring sustainable benefi ts to the aff ected rural communities, who may well experience more poverty and...

The radiation regime of lowland lagerstroemia tropical monsoon forests in the Cat Tien National Park in Vietnam was described using a 3D process-based model Mixfor-3D (Olchev et al. 2009). The Cat Tien National Park is situated in the south of Vietnam, approximately 150 km north of Ho Chi Minh City. It is unique area that protects one of the larges...