生态学杂志2011，Vol.30Issue(2)：193-200,8.
南亚热带三种主要森林降雨及其再分配过程中的养分差异规律
Differential patterns of nutrient elements in rainfall and its redistribution in three typical subtropical forests in South China
摘要
Abstract
Pinus massoniana forest, mixed P.massonniana-broadleaved forest, and monsoon broadleaved evergreen forest are the three typical subtropical forests at the succession stages from pioneer community to nearly climax in Dinghushan Nature Reserve in South China.In this paper,the differential patterns of five nutrient elements (K, Ca, Mg, N, and P) in rainfall and its redistribution in these forests were studied.The results showed that after the redistribution of rainfall through canopy, the concentrations of test nutrient elements except Ca in throughfall and stemflow had somewhat increase, especially in stemflow.In all the three forests, the Ca concentration in throughfall was lower than that in rainfall.The nutrient concentrations in throughfall and stemflow didn't show any significant changes in these forests, but the nutrient inputs in stemflow had an increasing trend with the progress of succession.In addition, the nutrient inputs of throughfall and stemflow were generally higher than those of litter fall, especially in the mixed forest and P.massoniana forest.Our results suggested that rainfall not only played an important role in nutrient transfer from forest canopy to soil, but also supplied necessary nutrients for forest growth, especially for that at early succession stage.关键词
降水再分配/养分输入/凋落物/鼎湖山分类
农业科技引用本文复制引用
张娜,刘兴诏,李坤,褚国伟,闫俊华..南亚热带三种主要森林降雨及其再分配过程中的养分差异规律[J].生态学杂志,2011,30(2):193-200,8.基金项目
国家自然科学基金项目(30872012、40730102)资助. （30872012、40730102）
