There are a series of articles that have been OSINT published including JANEs and Fisher.
In addition one of the more respectable Sino posters has started adding commentary, and in fact after conferring with him he was gracious enough to send me a scrape of material. Some follows.
Jane's Fighting Ships
Yuzhao (Type 071) class
(ASSAULT SHIP) (LHD)
IN SERVICE: 0
BUILDING: 1
Name No Builders Laid down Launched Commissioned
-KUNLUNSHAN 998 Hudong-Zhonghua Shipyard, Shanghai June 2006 21 Dec 2006 2008
Displacement, tons: 17,600 approx
Dimensions, feet (metres): 689.0 × 91.9 × 23.0 (210.0 × 28.0 × 7.0)
Main machinery: CODAD; 4 SEMT Pielstick 16 PC2.6 V 400 diesels; 47,000 hp (35.2 MW); 2 shafts
Speed, knots: 20
Complement: 120
Military lift: Four air-cushion vehicles plus vehicles and troops
Guns: 1-76 mm [Ref 1].
4-30 mm/65 AK 630 [Ref 2].
Countermeasures: Decoys: 2 launchers [Ref 3].
Radars: Air search: Type 363 (Sea Tiger) [Ref 4]; E/F-band.
Air/surface search: Type 364 Seagull C [Ref 5]; G-band.
Fire control: Type 347G(2) (LR 66) [Ref 6]; J-band for 76 mm.
Type 347G(1) (Rice Bowl) [Ref 7]; J-band for AK 630.
Navigation: Type NR 2000 [Ref 8]; I-band.
Helicopters: 2 Z-8 Super Frelon.
Programmes: After several years' speculation, the existence of the programme was confirmed when construction of a ship was initiated in mid-2006. The programme constitutes a key component of the PLA(N)'s plan to improve its sealift and power projection capabilities. Further ships are expected once evaluation trials have been completed.
Structure: The principal features of the ship include a large well deck area to accommodate four Air Cushion Vehicles (ACV) in the aft two-thirds of the ship. The ACVs are likely to access the ship through a stern gate. The ship may have to ballast down for operation. There is a large stern helicopter flight deck and a hangar. An internal garage deck for vehicles may be accessed via side ramps (port and starboard). There is space for the HQ7 launcher which may be fitted at a later date. Two LCVPs are carried.
Opinion: This ship represents a major enhancement of amphibious capability.