Mechanisms On Development Of Agricultural Natural Resources Use In Poyang Lake Region

Poyang lake region (PYLR) in the middle reach of yangtzi river is an important agricultural products base in China with a good natural condition and a good productive condition. However, for a long time agricultural natural resources have been unreasonably used and excessively exploited so that PYLR has frequent disasters of flood and aridness and people there have a poor life .Adopting the methods of combining static analyses with dynamic analyses, macroscopic analyses with microscopic analyses, and quality analyses with quantity analyses, the dissertation has probed into mechanisms on development of agricultural natural resources use in PYLR based on its development process, in order to realize agricultural natural resources sustainable use in PYLR and other similar regions.The content of the dissertation has been divided into three parts.In the first part, the present situation of agricultural natural resources use in PYLR has been statically analyzed in detail, including water resource, land resource, biological resources and its effects on ecological environment in PYLR. Then its development process has been dynamically studied. According to Chinese rural economic systems innovation in 1978 its development process from 1949 to 1999 has been classified into two stages, the traditional, sealed stage (1949-1978) and the modern ,opened stage (1979-1999) .Secondly, mechanisms on its development have been studied based on the analyses of its present situation and development process. And the main development factors have been profoundly discussed. Its basic motive power is unity of opposites between natural-ecological subsystem with a stable growth and a limited supply and social-economic subsystem with an unlimited demand. In essence its development process is a dialectical, balanced-unbalanced-balanced process like a spiral between social-economic demand and natural-ecological supply. During the process the key to its operation state is the way and the extent of mankind's activities interfering with natural-ecological subsystem. Its development process since 1949 indicates that institutional innovation and the advancement of agricultural technology are two main factors of promoting the development of agricultural natural resources use in PYLR. Andunder the given institutional and technological circumstances the disparities in resource endowment including natural resources and social-economic resources play an important role in different structure types and development ratio of agricultural natural resources use in PYLR.Thirdly, its development orbit has been studied. At last the concluding part of the dissertation outlines the strategic countermeasures of promoting agricultural natural resources sustainable use in PYLR through standardizing mankind's activities.