FAIR VALUE MEASUREMENTS (Tables)

12 Months Ended

Dec. 31, 2016

FAIR VALUE MEASUREMENTS [Abstract]

Schedule of Investments Measured at Fair Value on Recurring Basis

	Fair Value Measurements at Reporting Date Using
			Quote prices in
	Balance as of		active market		Significant other		Significant
	December 31,		for identical		observable		unobservable
Description	2014		assets (Level 1)		inputs (Level 2)		inputs (Level 3)
Assets:
Foreign exchange forward contracts		47,712,744		-		47,712,744		-
Capped call options		21,098,263		-		-		21,098,263
Available-for-sale investment		20,875,725		-		-		20,875,725
Liabilities:
Foreign exchange forward contracts		30,901,012		-		30,901,012		-
Convertible senior notes		1,540,398,645		-		-		1,540,398,645

	Fair Value Measurements at Reporting Date Using
			Quote prices in
	Balance as of		active market		Significant other		Significant
	December 31,		for identical		observable		unobservable
Description	2015		assets (Level 1)		inputs (Level 2)		inputs (Level 3)
Assets:
Call spread option		7,277,406		-		-		7,277,406
Foreign exchange forward contracts		7,038,537		-		7,038,537		-
Capped call options		17,490,323		-		-		17,490,323
Liabilities:
Foreign exchange forward contracts		4,295,737		-		4,295,737		-
Convertible senior notes		1,506,981,361		-		-		1,506,981,361
Warrant liability		68,377,608		-		-		68,377,608

	Fair Value Measurements at Reporting Date Using
			Quote prices in
	Balance as of		active market		Significant other		Significant
	December 31,		for identical		observable		unobservable
Description	2016		assets (Level 1)		inputs (Level 2)		inputs (Level 3)
Assets:
Guarantee receivables		235,728,241		-		-		235,728,241
Foreign exchange forward contracts		640,876		-		640,876		-
Liabilities:
Convertible senior notes		423,739,708		-		-		423,739,708
Guarantee liabilities		226,086,556		-		-		226,086,556
Rate cap derivative		10,364,075		-		-		10,364,075

Schedule of Reconciliation of Assets Measured at Fair Value on Recurring Basis Using Significant Unobservable Inputs

	For the year ended December 31,
	2014		2015		2016
	RMB		RMB		RMB
Balance at January 1,		770,485,897		1,540,398,645		1,506,981,361
Issuance of convertible senior notes		914,850,000		-		-
Foreign exchange (gain)/loss		5,853,455		96,678,461		43,448,795
Change in fair value of convertible senior notes		(150,790,707)		8,400,918		92,015,957
Repurchase of convertible senior notes		-		(138,496,663)		(1,218,706,405)
Balance at December 31,		1,540,398,645		1,506,981,361		423,739,708

	For the year ended December 31,
	2014		2015		2016
	RMB		RMB		RMB
Balance at January 1,		107,223,601		21,098,263		17,490,323
Foreign exchange (gain)/loss		563,725		2,562,342		736,212
Change in fair value of capped call options		(86,689,063)		(6,170,282)		(18,226,535)
Balance at December 31,		21,098,263		17,490,323		-

	For the year ended December 31,
	2014		2015		2016
	RMB		RMB		RMB
Balance at January 1,		30,117,797		20,875,725		-
Receipt of available-for-sale investment		-		-		-
Foreign exchange gain/(loss)		(3,446,112)		-		-
Change in fair value of available-for-sale		(5,795,960)		-		-
Transfer to receivable (Note 2 (g))		-		(20,875,725)		-
Balance at December 31,		20,875,725		-		-

Schedule of fair value of call spread option contracts

	For the year ended December 31,
	2014		2015		2016
	RMB		RMB		RMB
Balance at January 1,		-		-		7,277,406
Purchase of call spread option		-		7,647,843		4,761,603
Change in fair value of call spread		-		(370,437)		-
Exercise of call spread options		-		-		(12,039,009)
Balance at December 31,		-		7,277,406		-

Schedule of changes in fair value of warrant liability

	For the year ended December 31,
	2014		2015		2016
	RMB		RMB		RMB
Balance at January 1,		-		-		68,377,608
Issuance of warrant liability		-		62,331,211		-
Exchange loss on warrant liability		-		3,950,373		2,256,314
Change in fair value of warrant liability		-		2,096,024		(34,937,341)
Repurchase of warrant liability		-		-		(35,696,581)
Balance at December 31,		-		68,377,608		-

Schedule of Change in Fair Value of Derivatives

	For the year ended December 31,
	2014		2015		2016
	RMB		RMB		RMB
Balance at January 1,		-		-		-
Change in fair value of rate cap derivative		-		-		10,364,075
Balance at December 31,		-		-		10,364,075

	Type of derivatives
For the year ended	Foreign exchange forward  contracts				Call spread		Rate cap		Capped call		Warrant
December 31,	Realized		Unrealized		options		derivative		options		liability		Total
(In RMB)
2014		15,553,224		(16,267,966)		-		-		(86,689,063)		-		(87,403,805)
2015		71,000,875		(14,068,932)		(370,437)		-		(6,170,282)		(2,096,024)		48,295,200
2016		(53,202,660)		640,876		-		(10,364,075)		(18,226,535)		34,937,341		(46,215,053)

As of December 31, 2014

	Fair Value Measurements at Reporting Date Using
			Quote Prices
			in active		Significant
	Balance as of		market for		other		Significant
	December 31,		identical		observable		unobservable		Total
Description	2014		assets (Level 1)		input (Level 2)		input (Leval 3)		(losses)
	RMB		RMB		RMB		RMB
Property, plant and equipment, net		3,101,795,172		-		-		3,101,795,172		6,217,151

As of December 31, 2015

	Fair Value Measurements at Reporting Date Using
			Quote Prices
			in active		Significant
	Balance as of		market for		other		Significant
	December 31,		identical		observable		unobservable		Total
Description	2015		assets (Level 1)		input (Level 2)		input (Leval 3)		(losses)
	RMB		RMB		RMB		RMB
Property, plant and equipment, net		3,766,435,564		-		-		3,766,435,564		-

As of December 31, 2016

	Fair Value Measurements at Reporting Date Using
			Quote Prices
			in active		Significant
	Balance as of		market for		other		Significant
	December 31,		identical		observable		unobservable		Total
Description	2016		assets (Level 1)		input (Level 2)		input (Leval 3)		(losses)
	RMB		RMB		RMB		RMB
Property, plant and equipment, net		4,738,681,353		-		-		4,738,681,353		125,524,021