现代地质2011，Vol.25Issue(2)：384-392,9.
黑龙江省乌裕尔河流域有机碳迁移与沉积通量
Migration and Deposition Flux of Organic Carbon in the Wuyuerhe River Basin in Heilongjiang Province
摘要
Abstract
Soil erosion is very serious, and whether it belongs to carbon source or carbon sequestration has an important influence on the content of soil organic carbon in China.Focusing the research on the Wuyuerhe River Basin of Heilongjiang, 10 sets of solids, river water samples and sediment samples, 14 sets of the vertical profiles, 2 sets of Zhalong wetland sediment columns, 405 sets of the biological samples, and 305 sets of root soils in the south of Songnen Plain were collected and suspended, and the collected raw water is filtered and measured.According to the measurements of the major elements, trace elements, 210Pb, 137Cs, clay minerals, magnetic susceptibility, reflectance spectroscopy, and particle size, the research of the erosion flux of soil organic carbon in Wuyuerhe River Basin of Heilongjiang, migration patterns of watershed organic matter and deposition rate in Zhalong wetland were carried out.The results indicate that: the main factors affecting the stability of soil organic carbon include temperature, rainfall and soil texture in the study area; organic carbon inputs to the Zhalong wetland mainly in the form of long-distance migration and dissolving in the water, and the total amount estimates to be 2.91 × 106 kg; the total organic carbon deposition of Zhalong wetland is estimated about 2.71 × 106 kg per year, and in recent years the average of the deposition rate is about 0.34 g/( cm2·a).According to analyzing data of the organic carbon cycle in this area, the erosion soils of Wuyuerhe River Basin ultimately are deposited into the Zhalong wetland, and it belongs to the carbon sink.The results for the identification of soil erosion provide the basis on the soil organic carbon sink/source effects.关键词
黑龙江/乌裕尔河流域/土壤侵蚀/有机碳/土壤碳汇/源/沉积通量Key words
Heilongjiang/ Wuyuerhe River Basin/ soil erosion/ organic carbon/ soil carbon sink/source deposition flux分类
天文与地球科学引用本文复制引用
姜伟,侯青叶,杨忠芳,夏学齐,钟聪..黑龙江省乌裕尔河流域有机碳迁移与沉积通量[J].现代地质,2011,25(2):384-392,9.基金项目
国土资源部地质调查项目"黑龙江省松嫩平原(南部)农田及草原生态系统生态地球化学评价"(1212010511217-01). （南部）
