中國科學院煙臺海岸帶研究所黃河三角洲濱海濕地生態研究取得新進展,具體成果發表在Biogeosciences Discuss（IF=3.587）上, 成果主要內容如下：

本文主要研究新生黃河三角洲濕地生態系統土壤有機碳儲量變化情況，結果表明從2000年到2009年間，黃河三角洲新生濱海濕地總面積增加了10.59km2，而土壤有機碳總儲量分別為3.97×106t和3.98×106t。其中灘涂、灌叢濕地、農田和鹽化區域等受人為活動影響嚴重的地區土壤有機碳儲量變化較大。總體而言，黃河三角洲新生濱海濕地地區面積增加較大，而由于景觀類型的改變使土壤有機碳儲量增加較少，表面新生黃河三角洲濕地地區是一個潛在的碳匯，同時人為活動是影響土壤有機碳變化的主要因素。

論文詳情：

題目：Soil organic carbon storage changes in coastal wetlands of the modern Yellow River Delta from 2000 to 2009

作者：J. Yu, Y. Wang, Y. Li, H. Dong, D. Zhou, G. Han, H. Wu, G. Wang, P. Mao, Y. Gao

來源出版物：Biogeosciences Discuss., 9, 1759–1779, 2012

下載：www.biogeosciences-discuss.net/9/1759/2012/ doi:10.5194/bgd-9-1759-2012

摘要：Soil carbon sequestration plays an essential role in mitigating CO2increases and the subsequently global greenhouse effect. The storages and dynamics of soil organic carbon (SOC) of 0–30 cm soil depth in different landscape types including beaches, reservoir and pond, reed wetland, forest wetland, bush wetland, farmland, building land, bare land (severe saline land) and salt field in the modern Yellow River Delta (YRD), were studied based on the data of the regional survey and laboratory analysis. The landscape types were classified by the interpretation of remote sensing images of 2000 and 2009, which was calibrated by field survey results. The results revealed an increase of 10.59 km² in the modem YRD area from 2000 to 2009. The SOC density varied ranging from 0.73 kg m^？2 to 21.60 kg m^？2 at depth of 30 cm. There were ~3.97 × 10⁶ t and 3.98 × 10⁶ t SOC stored in the YRD in 2000 and 2009, respectively. The SOC storages changed greatly in beaches, bush wetland, farm land and salt field which were affected dominantly by anthropogenic activities. The area of the YRD increased greatly within 10 yr, however, the small increase of SOC storage in the region was observed due to landscape changes, indicating that the modern YRD was a potential carbon sink and anthropogenic activity was a key factor for SOC change.