不同土地利用模式下洪泽湖流域非点源颗粒态磷负荷时空演变研究

doi:10.11870/cjlyzyyhj201704014

长江流域资源与环境 >> 2017, Vol. 26 >> Issue (04): 606-614.doi: 10.11870/cjlyzyyhj201704014

不同土地利用模式下洪泽湖流域非点源颗粒态磷负荷时空演变研究

闵敏^1,2, 林晨^2,3, 熊俊峰^2,4, 沈春竹³, 金志丰³, 马荣华², 许金朵²

1. 河南大学黄河文明与可持续发展研究中心暨黄河文明传承与现代文明建设河南省协同创新中心, 河南开封 475001;
2. 中国科学院流域地理学重点实验室, 中国科学院南京地理与湖泊研究所, 江苏南京 210008;
3. 国土资源部海岸带开发与保护重点实验室, 江苏南京 210024;
4. 南京信息工程大学地理与遥感学院, 江苏南京 210044

收稿日期:2016-09-06 修回日期:2016-11-30 出版日期:2017-04-20
通讯作者: 林晨 E-mail:Clin@niglas.ac.cn
作者简介:闵敏(1991~),女,硕士研究生,主要从事土地利用与生态环境效应研究.E-mail:15637843378@163.com
基金资助:
国家自然科学基金（41671284）；国土资源部海岸带开发与保护重点实验室开放基金项目（2015CZEPK01）

RESEARCH ON SPATIO-TEMPORAL PATTERN EVOLUTIONOF NPS PARTICULATE PHOSPHORUS LOAD IN HONGZE LAKE BASIN UNDER DIFFERENT LANDUSE PATTERNS

MIN Min^1,2, LIN Chen^2,3, XIONG Jun-feng^2,4, SHEN Chun-zhu³, JIN Zhi-feng³, MA Rong-hua², XU Jin-duo²

1. Key Research Institute of Yellow River Civilization and Sustainable Development&Collaborative Innovation Center on Yellow River Civilization of Henan Province, Henan University, Kaifeng 475001, China;
2. Key Laboratory of Watershed Geographic Sciences/Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China;
3. The Ministry of Land and Resources Development and Protection Key Laboratory of Coastal Zone, Nanjing 210024, China;
4. School of Geography and Remote Sensing, Nanjing University of Information Science&Technology, Nanjing 210044, China

Received:2016-09-06 Revised:2016-11-30 Online:2017-04-20
Supported by:
National Natural Science Foundation of China (41671284);Ministry of Land and Resources Development and Protection Key Laboratory of Coastal Zone (2015CZEPK01)

摘要/Abstract

摘要： 综合星地协同技术手段，定量化表征1990年以来洪泽湖流域非点源颗粒态磷负荷的时空变化特征，并差别化地探讨其与流域土地利用变化的响应关系，厘清二者的作用机制，为实现非点源磷污染的有效管控提供科技支撑。主要结论包括：（1）近20年，颗粒态磷负荷呈现“下降-上升-下降”的波动状态，1990~1996年呈下降趋势，1998~2006年保持平稳增长状态，2008年后快速下降；（2）颗粒态磷单位负荷空间差异明显，高值区集中分布在淮河支流流域（3.88 t/km²/a），低值区则主要分布在汴河流域（0.57 t/km²/a）；（3）不同土地利用模式下平均颗粒态磷负荷由高到低依次为：多种地类混合的淮河支流流域（681.84 t/a）、城镇化快速增长的高松河流域（317.65 t/a）、农用地主导的维桥河流域（185.73 t/a）、湿地保护区的汴河流域（121.09 t/a）。林地、湿地等用地类型能显著减少颗粒态磷污染物的流失量，农用地和建设用地则会加剧颗粒态面源磷污染。

关键词: 土地利用, 非点源污染, 颗粒态磷负荷, 洪泽湖流域

Abstract: In this study, quantitative characterization of the spatial and temporal variation of non-point source (NPS) particulate phosphorus loads in the watershed area of the Hongze Lake since 1990 was carried out in order to find out the internal relation and the influence mechanism between non-point pollution and land use change Conclusions are as follows:1.during 1990~2012, the total loads of particulate phosphorus presented a trend of "fall-rise fall", with a gradual downward trend in 1990-1996, a stable growth state in 1996-2006, and a rapid downward trend after 2008. And the highest value was 2253.67 t/a in 2012, and the lowest value was 510.03 t/a in 1990; 2.There was significant spatial differences in the intensity of Par-P. The high value area was distributed in a variety of mixing zone of the tributaries of the Huaihe River basin, with an average Par-P intensity of of 3.88 t/km²/a. The low value area was mainly distributed in the wetland protection area of the Bian River Basin, with an average Par-P intensity of of 0.57 t/km²/a; 3. Average Par-P intensity of different land use patterns ranked as follows:Huaihe River Basin (681.84t/a), Gaosong River Basin (317.65t/a), Weiqiao River Basin (185.73t/a), Bian River Basin (121.09t/a). The corresponding land use pattern is a variety of mixed, urbanization rapid growth, the dominant land, wetland protection. The increase in the area of agricultural land and construction land will increase the phosphorus pollution, and the land types of forest land and wetland can significantly reduce the loss of particulate phosphorus. Rational land use planning has an important role in alleviating the non-point source pollution of particulate phosphorus. This study can extend the connotation of watershed NPS pollution research, and showed significant meaning for Integrated research of watershed scales, and also can provide the scientific basis for LUCC adjustment oriented to lake environment protection and management.

Key words: land use, non-point source pollution, particulate phosphorus loads, Hongze lake basin

中图分类号:

闵敏, 林晨, 熊俊峰, 沈春竹, 金志丰, 马荣华, 许金朵. 不同土地利用模式下洪泽湖流域非点源颗粒态磷负荷时空演变研究[J]. 长江流域资源与环境, 2017, 26(04): 606-614.

MIN Min, LIN Chen, XIONG Jun-feng, SHEN Chun-zhu, JIN Zhi-feng, MA Rong-hua, XU Jin-duo. RESEARCH ON SPATIO-TEMPORAL PATTERN EVOLUTIONOF NPS PARTICULATE PHOSPHORUS LOAD IN HONGZE LAKE BASIN UNDER DIFFERENT LANDUSE PATTERNS[J]. RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN, 2017, 26(04): 606-614.

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