江西农业学报
江西農業學報
강서농업학보
ACTA AGRICULTURAE JIANGXI
2015年
6期
7-11,16
,共6页
商洛地区%核桃产量%影响因素%主成分分析
商洛地區%覈桃產量%影響因素%主成分分析
상락지구%핵도산량%영향인소%주성분분석
Shangluo area%Walnut yield%Influencing factors%Principal component analysis
通过对数据的研究分析,将商洛市洛南县与山阳县2个县从2001年到2009年的核桃的产量进行对比分析,并运用主成分分析方法,选择无霜期、年降水量以及一年中各个季节的降水、气温、日照时长等20个可能对商洛地区核桃产量产生影响的气候因子作为评价指标,分析出影响商洛市2个县核桃产量的5个主成分,其中每个主成分的主要影响因子不同,根据两县不同主成分中不同的影响因子,总结影响两县核桃产量因子间的相同点和不同点,为整个商洛地区提高核桃产量提出合理建议。
通過對數據的研究分析,將商洛市洛南縣與山暘縣2箇縣從2001年到2009年的覈桃的產量進行對比分析,併運用主成分分析方法,選擇無霜期、年降水量以及一年中各箇季節的降水、氣溫、日照時長等20箇可能對商洛地區覈桃產量產生影響的氣候因子作為評價指標,分析齣影響商洛市2箇縣覈桃產量的5箇主成分,其中每箇主成分的主要影響因子不同,根據兩縣不同主成分中不同的影響因子,總結影響兩縣覈桃產量因子間的相同點和不同點,為整箇商洛地區提高覈桃產量提齣閤理建議。
통과대수거적연구분석,장상락시락남현여산양현2개현종2001년도2009년적핵도적산량진행대비분석,병운용주성분분석방법,선택무상기、년강수량이급일년중각개계절적강수、기온、일조시장등20개가능대상락지구핵도산양산생영향적기후인자작위평개지표,분석출영향상락시2개현핵도산량적5개주성분,기중매개주성분적주요영향인자불동,근거량현불동주성분중불동적영향인자,총결영향량현핵도산량인자간적상동점화불동점,위정개상락지구제고핵도산량제출합리건의。
The walnut yield of Luonan county and Shanyang county in Shangluo city during 2001~2009 was comparatively ana-lyzed.Twenty climatic factors ( frost-free period, annual rainfall, and seasonal rainfall, air temperature and sunshine duration, etc.) which might affect the walnut yield of two counties in Shangluo city were selected as evaluation indexes, five principal compo-nents were obtained by using principal component analysis method, and the main influencing factors in every principal component were different.According to the various influencing factors in different principal components, the author summarized the same points and different points in influencing factors of walnut yield between two counties, and put forward some reasonable proposals for the improvement of walnut yield in the whole Shangluo area.