干旱地区农业研究2017，Vol.35Issue(4)：33-38,6.DOI:10.7606/j.issn.1000-7601.2017.04.06
陕西省眉县猕猴桃园土壤碳氮磷生态化学计量学特征
Ecological stoichiometry of soil carboin, nitrogen and phosphorus within kiwi fruit orchards of Meixian County in Shaanxi
摘要
Abstract
The objective of this study was to investigate the soil ecological stoichiometric characteristics of kiwi fruit orchards of Meixian County.The soil at different territories and kiwi fruit cultivars were selected to investigate the distribution patterns of moisture content,pH,soil organic carbon (SOC),total nitrogen (TN) and total phosphorous (TP),and to examine the ecological stoichiometric characteristics of C,N and P within the soil.The results showed that the moisture content,pH,SOC,TN and TP varied in different territories and different kiwi fruit cultivars,with ranges of 1.12％ ～ 3.46％,7.12～8.40,4.22～ 13.90 g·kg-1,0.77～ 1.84 g·kg-1 and 0.73 ～2.45 g·kg-1,respectively.And the mean were 2.73 ％,7.83,7.66 g· kg-1,1.20 g· kg-1 and 1.40 g· kg-1,respectively,indicating that the elements of N and C were relatively scarce,and P was relatively rich.The soil ecological stoichiometric characteristics were significant difference in kiwi fruit orchards of Meixian County.The coefficients of variation of C/N,C/P and N/P were 28.30％,35.71％ and 21.15％,respectively,which were in the range of 3.06 ～ 11.99,2.68 ～ 10.90 and 0.48 ～ 1.41,respectively.The mean of variation coefficients were 6.57,5.91 and 0.90,respectively,all being below the national average.The correlation analyses revealed that the pH had highly significant positive correlation with C/P at 0.05 level;pH and TN,pH and TP,TN and C/N,TN and C/P,TP and C/N,TP and C/P,TP and N/P were all highly significant negative correlation at 0.01 level;pH and C/N,SOC and C/N,SOC and C/P,TN and TP,C/N and C/P,C/P and N/P were all highly significant positive correlation.关键词
猕猴桃园土壤/C/N/P/生态化学计量学特征Key words
soil of kiwi fruit orchards/C/N/P/ecological stoichiometric characteristics分类
农业科技引用本文复制引用
范拴喜..陕西省眉县猕猴桃园土壤碳氮磷生态化学计量学特征[J].干旱地区农业研究,2017,35(4):33-38,6.基金项目
陕西省教育厅自然科学项目(16JK1042) （16JK1042）
陕西省地理学重点学科资助 （）
