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| 思茅松人工林凋落物量及其分解状况研究 | |
| 引用本文： | 孟梦,李江,李莲芳,刘永刚,陈宏伟,冯弦.思茅松人工林凋落物量及其分解状况研究[J].西部林业科学,2011,40(2):56-63. |
| 作者姓名： | 孟梦 李江 李莲芳 刘永刚 陈宏伟 冯弦 |
| 作者单位： | 1. 云南省林业科学院,云南昆明,650204 2. 西南林业大学,云南昆明,650224 3. 云南省林业科学院,云南昆明650204;云南省森林植物培育和开发利用重点实验室/国家林业局云南珍稀濒特森林植物保护和繁育实验室,云南昆明650204 |
| 基金项目： | 国家林业局科技推广项目 |
| 摘 要： | 经对普洱市清水河5种不同密度6年生思茅松人工林的凋落物量及分解动态进行研究,结果表明:思茅松人工林年凋落物量随密度增大而递增;5种思茅松人工林月凋落规律相似,呈单峰型变化,在全年间,3~4月的凋落物量占全年的68.31%~73.51%,其余各月比较低;思茅松人工林凋落物归还养分的多少与凋落物量密切相关,人工林全N的归还量最高,全Mg的归还量最低,5种大量元素归还量的顺序为:N>P>Ca>K>Mg;思茅松人工林凋落物分解分两个阶段,旱季凋落物分解速度相对较慢,雨季凋落物快速分解,整个分解阶段呈现"由慢到快"的规律,年分解率受当地气温和降水的影响较大。 |
| 关 键 词： | 思茅松 人工林 凋落物 分解动态 |
Litter Amounts and Decomposition Dynamics of Pinus kesiya var.langbianensis Plantation |
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| MENG Meng,LI Jiang,LI Lian-fang,LIU Yong-gang,CHEN Hong-wei,FENG Xian.Litter Amounts and Decomposition Dynamics of Pinus kesiya var.langbianensis Plantation[J].Journal of West China Forestry Science,2011,40(2):56-63. | |
| Authors: | MENG Meng LI Jiang LI Lian-fang LIU Yong-gang CHEN Hong-wei FENG Xian |
| Institution: | MENG Meng1,LI Jiang1,LI Lian-fang2,LIU Yong-gang1,CHEN Hong-wei1,3,FENG Xian1(1.Yunnan Academy of Forestry,Kunming Yunnan 650204,P.R.China,2.Southwest Forestry University,Kunming Yunnan 650224,3.Key Laboratory of Forest Plant Cultivation and Utilization of Yunnan Province,Yunnan Laboratory for Conservation of Rare,Endangered & Endemic Forest Plants,SFA,P.R.China) |
| Abstract: | The litter amounts and decomposition dynamics of six years ole Pinus kesiya var.langbianensis plantation in Qingshuihe of Pu'er city were studied.The results indicated that the annual litter amounts increased as the planting space became denser,the seasonal dynamics model of litter of all the studied five stands of different planting densities are all single peak type.The litter produced in March and April accounts for 68.31 % ~ 73.51 % of the total amount of the whole year.The nutrient returns from litter ... |
| Keywords: | Pinus kesiya var langbianensis litter decomposition rate |
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