本文選題：耕地面積 + 動(dòng)態(tài)變化　； 參考：《中國(guó)農(nóng)業(yè)資源與區(qū)劃》2017年08期

【摘要】：[目的]以寧夏耕地面積為研究對(duì)象,分析耕地總面積、人均耕地面積及耕地利用程度動(dòng)態(tài)變化趨勢(shì),并從經(jīng)濟(jì)、社會(huì)、人口、技術(shù)等方面選取影響耕地面積變化的12個(gè)驅(qū)動(dòng)因子進(jìn)行研究,分析各驅(qū)動(dòng)因子對(duì)寧夏耕地面積的影響。[方法]選取1997~2014年寧夏耕地面積相關(guān)數(shù)據(jù),首先運(yùn)用數(shù)理統(tǒng)計(jì)法分析耕地面積變化趨勢(shì),然后采用主成分分析法對(duì)影響耕地面積變化的驅(qū)動(dòng)因子進(jìn)行分析和歸納。[結(jié)果]近18年來(lái)寧夏總耕地面積波動(dòng)較大,呈現(xiàn)出先緩慢增加,后急劇減少,再快速增加,最后保持平穩(wěn)的變化態(tài)勢(shì);雖然寧夏人均耕地面積高于全國(guó)水平,但是仍逐年下降且下降速度較快;耕地復(fù)種指數(shù)呈上升趨勢(shì),表明寧夏耕地利用率在逐年提高,但總體利用水平依然較低;經(jīng)濟(jì)發(fā)展水平、人口壓力、農(nóng)業(yè)生產(chǎn)技術(shù)以及農(nóng)業(yè)結(jié)構(gòu)調(diào)整是影響寧夏耕地面積變化的主要驅(qū)動(dòng)力。[結(jié)論]寧夏耕地面積變化明顯且受經(jīng)濟(jì)、人口、技術(shù)水平等因素影響較大。
[Abstract]:[objective] to analyze the dynamic change trend of cultivated land area, per capita cultivated land area and cultivated land use degree in Ningxia, and to analyze the economic, social and population trends.The effects of 12 driving factors on the cultivated land area in Ningxia were studied in terms of technology and so on, and the effects of each driving factor on the cultivated land area in Ningxia were analyzed.[methods] based on the relative data of cultivated land area in Ningxia from 1997 to 2014, the change trend of cultivated land area was analyzed by mathematical statistics method, and then the driving factors which affected the change of cultivated land area were analyzed and summarized by principal component analysis method.[results] over the past 18 years, the total cultivated land area in Ningxia has fluctuated greatly, showing a slow increase first, then a sharp decrease, then a rapid increase, and finally maintaining a steady trend of change, although the per capita cultivated land area in Ningxia is higher than the national level.However, the rate of decline is still decreasing year by year, and the rate of decline is fast. The index of multiple cropping of cultivated land is on the rise, indicating that the utilization rate of cultivated land in Ningxia is increasing year by year, but the overall utilization level is still low, the level of economic development, population pressure,Agricultural production technology and agricultural structure adjustment are the main driving forces affecting the change of cultivated land area in Ningxia.[conclusion] the change of cultivated land area in Ningxia is obviously influenced by economy, population and technology level.
【作者單位】： 寧夏農(nóng)林科學(xué)院農(nóng)業(yè)資源與環(huán)境研究所;
【基金】：寧夏回族自治區(qū)重點(diǎn)科技項(xiàng)目“寧夏耕地可持續(xù)利用與農(nóng)田生產(chǎn)力提升技術(shù)研究應(yīng)用”(2016-2020)
【分類號(hào)】：F323.211

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