On Analyzing The Farmland And Irrigation Works Construction And Its Ecological Effects In Tang Dynasty

It is a long history to exploit and utilize water resource in China, having built trench to irrigate early in Qin-Han dynasty and gotten a newly higher climax of farmland and irrigation works construction in Tang dynasty. This article deeply explores the reasons paying attention to farmland and irrigation works construction, discusses detailed on irrigation works and sums up completely its experiences and shortcomings in Tang dynasty. Based on the historical conditions, choosing the proper influencing effects, this article wholly analyzes ecological effects of farmland and irrigation works construction. To sum up: farmland and irrigation works is the method to prevent and cure the disaster of water logging and drought and improve agricultural conditions of production. People opened up the farmland and irrigation works widely in Tang dynasty to add up the acreage, increase the plant output, guarantee the life standard, promote social economical prosperity. We can't analyze the economical effects singly, and we should grasp the ecosystem effects of the farmland and irrigation works wholly. We should note that, in a sense, the ecological environment will be in danger, the crude vegetation will be destroyed, the water and soil will be degraded, etc. through farmland and irrigation construction. Learning from historical events, it is quite necessary for us to build comprehensively, harmoniously and continuously scientific developing views to promote the harmoniously agelong development of economy, society and human being.