摘要
对台湾地区18个湖泊水库水体中悬浮颗粒有机质（POM）之碳（POC）、氢（POH）、氧（POO）、氮（PON）、硫（POS）和叶绿素a（Chl.a）的含量进行了分析，其中POO乃首度以元素分析仪直接测量。结果为，POC，POH，POO，PON，POS含量分别介于138－8370μg／L，13．7－926．1μg／L，31－2623μg／L，14－1265μg／L，1．9－49．7μg／L之间，Chl．a含量则介于0．31－96．75μg／L之间。POM元素间原子数关系为C／O＝3．7，C／N＝8．5，C／S＝369，H／C＝1．4，H／O＝5．4，H／N＝11，H／S＝577，O／N＝1．8，O／S＝71，N／S＝38。将本研究结果配合Redfield系数，推得136CO2＋16NO■＋HPO■＋0．5SO■十85H2O＋19H+＋能量→C136H190O37N16P1S0.5＋188·O2。
Suspended particulate organic matter (POM) from eighteen lakes and reservoirs in Taiwan was collected and analyzed for the first time for particulate organic carbon (POC), hydrogen (POH), oxygen (POO), nitrogen (PON), sulfur (POS) and chlorophyll a (Chl. a). POO was measured directly in contrast to the traditional method of substracting POC, POH and PON from POM. The concentrations of POC, POH,POO, PON, POS and Chl. a range between 138-8 37μg/L, 13.5-926.1μg/L, 31--2 623μg/L, 14-1 265μg/L, 1.9-49.7μg/L and 0.31-96.75μg/L, respectively. The correlations among C/H/O/N/S/Chl. a are C/O = 3.7, C/N = 8.5, C/S = 369, H/C= 1.4, H/O = 5.4, H/N = 11, H/S = 577, O/N = 1.8, O/S = 71, N/S = 38 (molar ratios) and C/Chl. a = 106 (by weight). The correlations lead to a stoichiometricmodel that can be represented as:136CO2 + 16NO + HPO + 0.5SO + 85H2O + 19H++ energy→ C136H190O37N16· P1S0.5 + 188O2The POC/PON and POC/Chl. a ratios are higher than the Redfield ratio (6.6),and the ratio in phytoplankton (35), respectively. The higher values are attributable to a higher proportion of detritus in field samples.
出处
《海洋与湖沼》
CAS
CSCD
北大核心
1994年第1期29-37,共9页
Oceanologia Et Limnologia Sinica
关键词
湖泊
水库
有机质
碳
氢
氧
Lake Reservoir Suspended Particulate organic matter Carbon Hydrogen Oxygen Nitrogen Sulfur
