Immigrating to Dongting Lake

According to the analysis materials, (1) Dongting Lake is located in the middle reaches of the Yangtze River, which plays a right role in regulating the flow of the Yangtze River. (1) In recent years, the area of Dongting Lake has been shrinking, mainly due to siltation and land reclamation around the lake. (3) In recent years, in order to improve the flood control capacity of Dongting Lake area, the measures taken by the state to control Dongting Lake area include: returning farmland to the lake and building towns by immigrants.

So the answer is: (1) middle reaches; Adjustment; (1) silting up and reclaiming land from lakes; (3) Returning farmland to lakes and building towns by immigrants; (1) 36 cities are relatively close.