Role of hydrological conditions on organic phosphorus forms and their availability in sediments from Poyang Lake, China
被引:21
作者:
Ni, Zhaokui
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机构:
Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China
Chinese Res Inst Environm Sci, Res Ctr Lake Environm, State Environm Protect Key Lab Lake Pollut Contro, Beijing 100012, Peoples R China
Dongting Lake Ecol Observat & Res Stn, Yueyang 414000, Peoples R ChinaChinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China
Ni, Zhaokui
[1
,2
,3
]
Wang, Shengrui
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China
Chinese Res Inst Environm Sci, Res Ctr Lake Environm, State Environm Protect Key Lab Lake Pollut Contro, Beijing 100012, Peoples R China
Dongting Lake Ecol Observat & Res Stn, Yueyang 414000, Peoples R ChinaChinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China
Wang, Shengrui
[1
,2
,3
]
Zhang, Li
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China
Chinese Res Inst Environm Sci, Res Ctr Lake Environm, State Environm Protect Key Lab Lake Pollut Contro, Beijing 100012, Peoples R China
Dongting Lake Ecol Observat & Res Stn, Yueyang 414000, Peoples R ChinaChinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China
Zhang, Li
[1
,2
,3
]
Wu, Zhiqiang
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R ChinaChinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China
Wu, Zhiqiang
[1
]
机构:
[1] Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China
[2] Chinese Res Inst Environm Sci, Res Ctr Lake Environm, State Environm Protect Key Lab Lake Pollut Contro, Beijing 100012, Peoples R China
[3] Dongting Lake Ecol Observat & Res Stn, Yueyang 414000, Peoples R China
Biogeochemical cycling of internal bioavailable organic phosphorus (OP) is an important source for algal bloom after exogenous P inputs are controlled. Biogeochemical cycling may be affected by hydrological processes and the water cycle and eventually result in water quality deterioration and accelerated lake eutrophication. Poyang Lake is the largest freshwater lake in China. The hydrological condition of the lake has significantly changed since 2003, thereby causing a continuous decline in water level. In this study, sediments were obtained from different elevations and different hydrological conditions in Poyang Lake. The sediments were subjected to sequential extraction and enzymatic hydrolysis to determine the transformation of OP into various chemical forms, their bioavailability, and the exchange between the sediments and overlying water. Results suggested that the descending water level caused by the changes in hydrological conditions was one of the major factors affecting OP dynamics. Long exposure of sediments resulted in high OP content and increased availability. The increased OP content in ex-posed sediments was primarily derived from H2O-P-o and NaOH-EDTA-P-o. Moreover, the increased OP availability in exposed sediments was mainly attributed to the increasing amount of orthophosphate caused by processes governing sediment exposure, promotion of OP release, and transformation of chemical forms from nonlabile to labile. Sediment exposure time and area have considerably expanded since 2003; hence, the amounts of OP and orthophosphate in the sediments have increased by as much as 600 and 120 tons in the lake every year, respectively. Although the increase in orthophosphate only accounted for 6 % of the external total phosphorus, the local region may exhibit higher risk for OP release from the sediments, thereby accelerating quality deterioration. Therefore, maintaining reasonable hydrological conditions is important to protect Poyang Lake water.
机构:
Chinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Peoples R China
Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R ChinaChinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Peoples R China
Bai, Xiuling
;
Ding, Shiming
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Peoples R ChinaChinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Peoples R China
Ding, Shiming
;
Fan, Chengxin
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Peoples R ChinaChinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Peoples R China
Fan, Chengxin
;
Liu, Tao
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Peoples R ChinaChinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Peoples R China
Liu, Tao
;
Shi, Dan
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Peoples R ChinaChinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Peoples R China
Shi, Dan
;
Zhang, Lu
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Peoples R ChinaChinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Peoples R China
机构:
Chinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Peoples R ChinaChinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Peoples R China
Ding, ShiMing
;
Bai, Xiuling
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Peoples R China
Henan Univ, Coll Environm & Planning, Kaifeng 475000, Peoples R ChinaChinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Peoples R China
Bai, Xiuling
;
Fan, Chengxin
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Peoples R ChinaChinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Peoples R China
Fan, Chengxin
;
Zhang, Lu
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Peoples R ChinaChinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Peoples R China
机构:
Yantai Univ, Ocean Sch, Yantai 264005, Peoples R ChinaYantai Univ, Ocean Sch, Yantai 264005, Peoples R China
Gao, Li
;
Zhang, Luhua
论文数: 0引用数: 0
h-index: 0
机构:
Yantai Univ, Ocean Sch, Yantai 264005, Peoples R ChinaYantai Univ, Ocean Sch, Yantai 264005, Peoples R China
Zhang, Luhua
;
Hou, Jinzhi
论文数: 0引用数: 0
h-index: 0
机构:
Yantai Univ, Ocean Sch, Yantai 264005, Peoples R ChinaYantai Univ, Ocean Sch, Yantai 264005, Peoples R China
Hou, Jinzhi
;
Wei, Quan
论文数: 0引用数: 0
h-index: 0
机构:
Yantai Univ, Ocean Sch, Yantai 264005, Peoples R ChinaYantai Univ, Ocean Sch, Yantai 264005, Peoples R China
Wei, Quan
;
Fu, Feng
论文数: 0引用数: 0
h-index: 0
机构:
Yantai Univ, Ocean Sch, Yantai 264005, Peoples R ChinaYantai Univ, Ocean Sch, Yantai 264005, Peoples R China
Fu, Feng
;
Shao, Hongbo
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, Key Lab Coastal Biol & Bioresources Utilizat, Yantai 264003, Peoples R China
Qingdao Univ Sci & Technol, Inst Life Sci, Qingdao 266042, Peoples R ChinaYantai Univ, Ocean Sch, Yantai 264005, Peoples R China
机构:
Chinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Peoples R China
Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R ChinaChinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Peoples R China
Bai, Xiuling
;
Ding, Shiming
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Peoples R ChinaChinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Peoples R China
Ding, Shiming
;
Fan, Chengxin
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Peoples R ChinaChinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Peoples R China
Fan, Chengxin
;
Liu, Tao
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Peoples R ChinaChinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Peoples R China
Liu, Tao
;
Shi, Dan
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Peoples R ChinaChinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Peoples R China
Shi, Dan
;
Zhang, Lu
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Peoples R ChinaChinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Peoples R China
机构:
Chinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Peoples R ChinaChinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Peoples R China
Ding, ShiMing
;
Bai, Xiuling
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Peoples R China
Henan Univ, Coll Environm & Planning, Kaifeng 475000, Peoples R ChinaChinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Peoples R China
Bai, Xiuling
;
Fan, Chengxin
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Peoples R ChinaChinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Peoples R China
Fan, Chengxin
;
Zhang, Lu
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Peoples R ChinaChinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Peoples R China
机构:
Yantai Univ, Ocean Sch, Yantai 264005, Peoples R ChinaYantai Univ, Ocean Sch, Yantai 264005, Peoples R China
Gao, Li
;
Zhang, Luhua
论文数: 0引用数: 0
h-index: 0
机构:
Yantai Univ, Ocean Sch, Yantai 264005, Peoples R ChinaYantai Univ, Ocean Sch, Yantai 264005, Peoples R China
Zhang, Luhua
;
Hou, Jinzhi
论文数: 0引用数: 0
h-index: 0
机构:
Yantai Univ, Ocean Sch, Yantai 264005, Peoples R ChinaYantai Univ, Ocean Sch, Yantai 264005, Peoples R China
Hou, Jinzhi
;
Wei, Quan
论文数: 0引用数: 0
h-index: 0
机构:
Yantai Univ, Ocean Sch, Yantai 264005, Peoples R ChinaYantai Univ, Ocean Sch, Yantai 264005, Peoples R China
Wei, Quan
;
Fu, Feng
论文数: 0引用数: 0
h-index: 0
机构:
Yantai Univ, Ocean Sch, Yantai 264005, Peoples R ChinaYantai Univ, Ocean Sch, Yantai 264005, Peoples R China
Fu, Feng
;
Shao, Hongbo
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, Key Lab Coastal Biol & Bioresources Utilizat, Yantai 264003, Peoples R China
Qingdao Univ Sci & Technol, Inst Life Sci, Qingdao 266042, Peoples R ChinaYantai Univ, Ocean Sch, Yantai 264005, Peoples R China