有色金属科学与工程
有色金屬科學與工程
유색금속과학여공정
JIANGXI NONFERROUS METALS
2015年
3期
121-126
,共6页
离子型稀土%信息熵%开采量指标%均衡度%优势度%储采比曲线
離子型稀土%信息熵%開採量指標%均衡度%優勢度%儲採比麯線
리자형희토%신식적%개채량지표%균형도%우세도%저채비곡선
The ionic rare earth%information entropy%production quota%equilibrium degree%dominance degree%reserve-production ratio curve
我国2006年开始下达稀土开采量控制指标，对指导稀土生产发挥了重要作用。为了更好地理解指标变化情况，运用信息熵理论对南方6省离子型稀土生产量控制指标分析，结果表明指标数经历了“稳定-增长-稳定”3阶段。其中2006~2008年信息熵、均衡度和优势度变化平缓；2008~2011年信息熵、均衡度快速上升，优势度快速下降；2011~2014年信息熵、均衡度和优势度再次进入平缓阶段。对指标影响因素研究，结果表明控制管理实施情况为指标制定指引方向；稀土精矿市场价格在2006~2011年区间段与信息熵变化趋势一致，2012年后市场价格快速下降，开采量指标步入稳定；储采比变化曲线在3个阶段与信息熵曲线步调一致。从信息熵角度描述指标数变化情况，探讨开采量指标与影响因素的变化关系，对掌握指标数的变化趋势具有重要意义。
我國2006年開始下達稀土開採量控製指標，對指導稀土生產髮揮瞭重要作用。為瞭更好地理解指標變化情況，運用信息熵理論對南方6省離子型稀土生產量控製指標分析，結果錶明指標數經歷瞭“穩定-增長-穩定”3階段。其中2006~2008年信息熵、均衡度和優勢度變化平緩；2008~2011年信息熵、均衡度快速上升，優勢度快速下降；2011~2014年信息熵、均衡度和優勢度再次進入平緩階段。對指標影響因素研究，結果錶明控製管理實施情況為指標製定指引方嚮；稀土精礦市場價格在2006~2011年區間段與信息熵變化趨勢一緻，2012年後市場價格快速下降，開採量指標步入穩定；儲採比變化麯線在3箇階段與信息熵麯線步調一緻。從信息熵角度描述指標數變化情況，探討開採量指標與影響因素的變化關繫，對掌握指標數的變化趨勢具有重要意義。
아국2006년개시하체희토개채량공제지표，대지도희토생산발휘료중요작용。위료경호지리해지표변화정황，운용신식적이론대남방6성리자형희토생산량공제지표분석，결과표명지표수경력료“은정-증장-은정”3계단。기중2006~2008년신식적、균형도화우세도변화평완；2008~2011년신식적、균형도쾌속상승，우세도쾌속하강；2011~2014년신식적、균형도화우세도재차진입평완계단。대지표영향인소연구，결과표명공제관리실시정황위지표제정지인방향；희토정광시장개격재2006~2011년구간단여신식적변화추세일치，2012년후시장개격쾌속하강，개채량지표보입은정；저채비변화곡선재3개계단여신식적곡선보조일치。종신식적각도묘술지표수변화정황，탐토개채량지표여영향인소적변화관계，대장악지표수적변화추세구유중요의의。
Yield quotas of ionic rare earth rationed by Chinese government from 2006 has played an important role in guiding rare earth productivity in China. The ionic rare earth yield quotas are analyzed in six provinces in Southern China to demonstrate the yield changes by adopting information entropy theory. The results show that the quotas have experienced stages of “stability-growth-stability”. The information entropy, equilibrium degree and dominance degree changed gradually from 2006 to 2008. However, from 2008 to 2011, the information entropy and equilibrium degree rose rapidly, while the dominance degree fell fast. And then from 2011 to 2014, the information entropy, equilibrium degree and dominance degree returned to the steady stage. Researching results on factors affecting on quotas show that the control management implementation provided orientation for quota determination. Rare earth concentrate price fluctuation tendency has been consistent with information entropy variation between 2006 and 2011. After 2012, rare earth price fell dramatically with steady mining quota. The reserve-production ratios are in conformity with information entropy curve in three stages. The relationship between production quotas and influencing factors are discussed by describing the changes of the quotas from the point of information entropy, which has great significance to grasp the change trend of production quotas.
