U.S.-Thailand Cooperative Research on Sediment Trapping by Brackish Water Ponds in Thailand

该提案要求提供资金，以允许奥本大学渔业及相关水产养殖系的Claude E.Boyd博士与泰国曼谷Kasetsart大学水产养殖系的Yont Musig博士进行为期24个月的研究，泰国曼谷附近咸水养殖池塘泥沙捕集合作研究项目。研究的目的是(1)评价这些池塘的泥沙捕获能力；(2)确定底泥的化学成分和结构组成及其耗氧率。四条大河流入曼谷周围地区的泰国湾上游。这些河流耗尽了大片农田，流经曼谷周围人口稠密的地区。他们的水中充满了悬浮的土壤颗粒、有机物和营养物质。在河口河段，修建了一个巨大的运河网络，用于运输、生活和工业用水、灌溉、捕捞渔业，并为微咸水水产养殖场供水。这些养殖场主要用于通过广泛的方法生产对虾，即不添加粪便、化肥或饲料。水以每天至少10%的速度流过池塘。正是在这种情况下，PI将研究池塘的泥沙捕获能力和发生在其中的过程的生态重要性。通过对这些过程的了解，可以为该地区制定更好的水管理方案。PI在这一研究领域有成功合作的记录。本项目将使他们能够将自己的才华和兴趣结合起来，实现互利共赢。该项目与发展中国家科学计划的目标相关，该计划旨在通过交流科学信息、思想、技能和技术，以及通过在互利问题上的合作，提高美国科学家和工程师与发展中国家同行之间的合作水平。

This proposal requests funds to permit Dr. Claude E. Boyd, Department of Fisheries and Allied Aquacultures, Auburn, University, to pursue with Dr. Yont Musig, Department of Aquaculture, Kasetsart University, Bangkok, Thailand, for a period of 24 months, a program of cooperative research on sediment trapping by brackish water aquaculture ponds in the vicinity of Bangkok, Thailand. Objectives of the research are (1) to evaluate the sediment trapping ability of these ponds and (2) to determine the chemical and textural composition of the sediment as well as its oxygen consumption rate. Four large rivers enter the upper Gulf of Thailand in the region around Bangkok. These rivers drain a large area of agricultural land and pass through the heavily populated area around Bangkok. Their waters are laden with suspended soil particles, organic matter, and nutrients. In the estuarine reaches of the rivers, a vast network of canals has been constructed for transportation, domestic and industrial water, irrigation, capture fisheries, and to supply water for brackish water aquaculture farms. These farms are mostly used for shrimp production by extensive methods, i.e. without the addition of manure, fertilizers, or feed. Water flushes through the ponds at the rate of at least 10% per day. It is in this setting that the PI's will study the sediment trapping ability of the ponds and the ecological importance of processes occurring therein. Through an understanding of these processes, better water management schemes may be formulated for the region. The PI's have a record of successful collaboration in the field of this research. The present project will allow them to combine their talents and interests for mutual benefit. This project is relevant to the objectives of the Science in Developing Countries Program which seeks to increase the level of cooperation between U.S. scientists and engineers and their counterparts in developing countries through the exchange of scientific information, ideas, skills, and techniques and through collaboration on problems of mutual benefit.