PDF Download

[1]ZHOU Xiafei,YU Fang,CAO Guozhi,et al.Spatiotemporal Features of Carbon Source-Sink and Its Relationship with Climate Factors in Qinghai-Tibet Plateau Grassland Ecosystem During 2001-2015[J].Research of Soil and Water Conservation,2019,26(01):76-81.

Copy

Spatiotemporal Features of Carbon Source-Sink and Its Relationship with Climate Factors in Qinghai-Tibet Plateau Grassland Ecosystem During 2001-2015

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 26 Number of periods: 2019 01 Page number: 76-81 Column: Public date: 2019-02-28

Title:: Spatiotemporal Features of Carbon Source-Sink and Its Relationship with Climate Factors in Qinghai-Tibet Plateau Grassland Ecosystem During 2001-2015

Author(s):: ZHOU Xiafei¹, YU Fang¹, CAO Guozhi¹, YANG Weishan^1,2, ZHOU Ying¹; 1. Chinese Academy for Environmental Planning, Beijing 100012, China;
2. Institute of Scientific and Technological Development, Chinese Academy of Sciences, Beijing 100190, China

Keywords:: Qinghai-Tibet Plateau; grassland; NEP; NPP

CLC:: S812.29

DOI:: -

Abstract:: Net ecosystem productivity (NEP) is an important factor for the regional estimation of carbon sources and carbon sinks. We adopted remote sensing data, meteorological data and basic geographic data to estimate the net primary productivity (NPP) in Qinghai-Tibet Plateau grassland ecosystem in the period from 2001 to 2015 based on a light use efficiency model. We analyzed the spatiotemporal distribution of NEP in grassland ecosystem in Qinghai-Tibet Plateau based on the estimation of the NPP and soil respiration in the period from 2001 to 2015. We also analyzed the relationship between NPP/NEP and main meteorological factors. The results showed that:(1) grassland ecosystem in Qinghai-Tibet Plateau overall had the function of carbon sink during the period from 2001 to 2015, and the amount of average net carbon sequestration was 1.82×10¹⁴ gC/a; (2) average NEP of grassland increased during the period from 2001 to 2015, with the average annual NEP of 120.8 gC/(m²·a) and the growth rate of annual NEP of 0.7 gC/(m²·a); (3) NPP of grassland had no significant correlation with precipitation and temperature; NEP of grassland was negatively correlated with precipitation and temperature.

References:: [1] Wang Qiufeng, Zheng Han, Zhu Xianjin, et al. Primary estimation of Chinese terrestrial carbon sequestration during 2001-2010[J]. Science Bulletin, 2015,60(6):577-590.
[2] Jmo Scurlock, Hall D O. The global carbon sink:a grassland perspective[J]. Global Change Biology, 1998,4(2):229-233.
[3] 戴尔阜,黄宇,吴卓,等.内蒙古草地生态系统碳源/汇时空格局及其与气候因子的关系[J].地理学报,2016,71(1):21-34.
[4] 任小丽,何洪林,张黎,等.2001-2010年三江源区草地净生态系统生产力估算[J].环境科学研究,2017,30(1):51-58.
[5] Piao Shilong, Cui Mengdi, Chen Anping, et al. Altitude and temperature dependence of change in the spring vegetation green-up date from 1982 to 2006 in the Qinghai-Xizang Plateau[J]. Agricultural & Forest Meteorology, 2011,151(12):1599-1608.
[6] Jin Zhenong, Zhuang Qianlai, He Jinsheng, et al. Phenology shift from 1989 to 2008 on the Tibetan Plateau:an analysis with a process-based soil physical model and remote sensing data[J]. Climatic Change, 2013,119(2):435-449.
[7] 周伟,牟凤云,刚成诚,等.1982-2010年中国草地净初级生产力时空动态及其与气候因子的关系[J].生态学报,2017,37(13):1-11.
[8] 张珺,任鸿瑞.人类活动对锡林郭勒盟草原净初级生产力的影响研究[J].自然资源学报,2017,32(7):1125-1133.
[9] Raich J W, Schlesinger W H. The global carbon dioxide flux in soil respiration and its relationship to vegetation and climate[J]. Tellus Series B-Chemical & Physical Meteorology, 1992,44(2):81-99.
[10] 庞瑞,顾峰雪,张远东,等.西南高山地区净生态系统生产力时空动态[J].生态学报,2012,32(24):7844-7856.
[11] 李洁,张远东,顾峰雪,等.中国东北地区近50年净生态系统生产力的时空动态[J].生态学报,2014,34(6):1490-1502.
[12] 巩杰,张影,钱彩云.甘肃白龙江流域净生态系统生产力时空变化[J].生态学报,2017,37(15):1-8.
[13] 于惠.青藏高原草地变化及其对气候的响应[D].兰州:兰州大学,2013.
[14] 刘宪锋,任志远,林志慧.青藏高原生态系统固碳释氧价值动态测评[J].地理研究,2013,32(4):663-670.
[15] Field C B, Randerson J T, Malmström C M. Global net primary production:Combining ecology and remote sensing[J]. Remote Sensing of Environment, 1995,51(1):74-88.
[16] 朱文泉,潘耀忠,张锦水.中国陆地植被净初级生产力遥感估算[J].植物生态学报,2007,31(3):413-424.
[17] 朱文泉,潘耀忠,何浩,等.中国典型植被最大光利用率模拟[J].科学通报,2006,51(6):700-706.
[18] Bond-Lamberty B, Wang C, Gower S T. A global relationship between the heterotrophic and autotrophic components of soil respiration[J]. Global Change Biology, 2004,10(10):1756-1766.
[19] Raich J W, Potter C S, Bhagawati D. Interannual variability in global soil respiration, 1980-1994[J]. Global Change Biology, 2010,8(8):800-812.
[20] 陶波,曹明奎,李克让,等.1981-2000年中国陆地净生态系统生产力空间格局及其变化[J].中国科学:地球科学,2006,36(12):1131-1139.
[21] Ni Jian, Zhang Xinshi, Scurlock J M O. Synthesis and analysis of biomass and net primary productivity in Chinese forests[J]. Annals of Forest Science, 2001,58(4):351-384.

Similar References:

Memo

Last Update: 1900-01-01