Summer Cover Lake Evolution Of The Studies Of The Historical Period

Lake Xiagai-Hu was founded by the people who live there in Tang Changqingyears. In terms of area Lake Xiagai-Hu was the second-largest reservoirs after theLake of Mirror on Ningbo-Shaoxing Plain. The lake was52.5km in circumferenece itirrigated about1300qing farmland and made a great contribution to the local waterconservancy business.Because the local populace utilized lowland to creat thelake,the lake was easily to be farmed. The lake is relatively shallow was also one ofthe reasons,in the end,the lake disappearde in history.In its long historical period, Lake Xiagai-Hu experienced many times crisis aboutto be farmed or not in Song dynasty, a part of lake was farmed in Ming dynasty, it wasultimately completely farmed in Qing dynasty. This article will through collation ofthe series of historical data which was coherence to tease the changes in the processof Lake Xiagai-Hu in history.In order to summarize its different characteristics indifferent historical period and further thoughts on the problem of reclaim land fromlakes, the plight of the ancients and what we can learn from them.In the study of the lake group on Ningbo-Shaoxing Plain involves agricultureproblem is always a hot topic.Through the study of single lake, we can know therelationship between man，land and water.Especially now，all places pursueseconomic development one-sidedly, that made a large number of lakesdisappeared.Sowe must think how to keep relationship between the human societyand the geographical environment in balance to create a harmonious andsustainable development environment.