热带作物学报2017，Vol.38Issue(11)：1997-2002,6.DOI:10.3969/j.issn.1000-2561.2017.11.001
橡胶林下间作广金钱草地上部碳氮磷钾生态化学计量特征研究
Ecological Stoichiometry of C, N, P, K in Above-ground Desmodium styracifolium Intercropped Under Different Rubber Plantations
摘要
Abstract
The effect of different shade intensity on C,N,P,K ecologicalstoichiometry in Desmodium styracifolium that intercropped under different rubber plantations were studied in this paper.Results showed that:(1)C and N content,N/P,C/P all showed leave＞above-ground＞stem,but P and K content、C/N all showed stem＞aboveground＞leave.(2)C content all declined when shade intensity increased.(3)Leaf N and every part's P all showed medium shade＞natural light and more shade＞highly shade,above-ground N showed just the oppositely,but in stem N their were natural light＞more shade and highly shade＞medium shade.(4) Stem K and above-ground K all declined when shade intensity increased,but leaf K showed medium shade＞more shade and highly shade＞natural light.(5) Every part's N/P all showed increased when shade intensity increased.(6)Above-ground and stem C/N all showed medium shade＞natural light and more shade＞highly shade,but leaf C/N showed natural light and more shade＞medium shade and highly shade.(7)Every part's C/P all showed highly shade＞more shade and natural light＞medium shade.关键词
橡胶林下间作/广金钱草/荫蔽度/碳氮磷钾/生态化学计量特征Key words
Intercropped under rubber plantation/Desmodium styracifolium/shade intensity/C, N, P, K/ecological stoichiometry分类
农业科技引用本文复制引用
郑定华,袁淑娜,陈俊明,黄坚雄,潘剑,李娟,周立军..橡胶林下间作广金钱草地上部碳氮磷钾生态化学计量特征研究[J].热带作物学报,2017,38(11):1997-2002,6.基金项目
海南省自然科学基金项目(No.20163139) （No.20163139）
中国热带农业科学院基本科研业务费专项(No.1630022017018) （No.1630022017018）
现代农业产业技术体系建设专项(No.CARS-34-GW4). （No.CARS-34-GW4）
