两种土地利用方式下土壤有机碳含量特征  

Characteristics of Soil Organic Carbon Content Under Various Land-Usages

作　　者：陈卓[1] 史锟[1] 

机构地区：[1]大连交通大学环境与化学工程学院,辽宁大连116028

出　　处：《大连交通大学学报》2008年第3期58-60,共3页Journal of Dalian Jiaotong University

基　　金：中国林科院GEF基金项目(CPR/00/G33)

摘　　要：以适合人类居住的中纬度黄海地区为研究对象，选择丹东凤城作为典型样区，通过实地调查和采样，分析了两种土地利用方式（玉米田和栗树林）下土壤有机碳含量特征．结果表明，研究区内0～50cm土层有机碳含量为：栗树（Castanea）林（11．91g·kg^-1）〉玉米（Zea mays L．）田（4．68g·kg^-1），其差异均达到显著水平（P〈0．01）．通过研究以期为准确预测土壤有机碳在全球变化情景下对大气CO2的源／汇方向及准确评估碳收支提供一定的参考依据．The investigated object was the middle latitude Huanghai region which fits for humanbeing living, and Fengcheng of Dandong city was chosen as the representative area. The characters of soil organic carbon content was analyzed under various types of land. Chestnut was ascendant species in the hurst of Fengcheng area while the maize was ascendant in the field. The results showed that the difference of the soil organic carbon contents between two land-use types was significant （ P 〈 0. 01 ）, and the soil organic carbon content order was： Chestnut（ 11.91 g · kg^-1 ） 〉 Maize field（4.68 g · kg^-1 ）. So that tree planting and forestation were propitious to accumulate soil organic carbon in the inshore region. It＇ s very important to understand the conla＇oll factors of SOC and know how SOC may respond to environmental change for predicting the consequences of SOC accuracy under global change and evaluating the carbon budget.

关 键 词：土壤有机碳 土地利用方式 黄海地区 

分 类 号：S153.6[农业科学—土壤学]