帮助 关于我们

返回检索结果

土地利用类型转换对地表能量平衡和气候的影响——基于SiB2模型的模拟结果
Influence of land use change on surface energy balance and climate: results from SiB2 model simulation

查看参考文献42篇

刘凤山 1   陶福禄 1 *   肖登攀 2   张帅 1   王猛 1   张贺 1  
文摘 利用SiB2模型对中国东北地区农田、草地和森林3种土地利用类型的地表能量平衡过程展开研究,分析不同土地利用类型对生物地球物理参数(反照率和粗糙度)、能量平衡(净辐射、潜热和显热)和气候(冠层温度)的影响。结果表明: ①模型模拟的地表能量平衡与实测数据的年变化动态相似(R2>0.42),差值保持在±30 W/m2,温度在±4 ℃。②利用相同气象数据模拟不同土地利用类型通过生物地球物理过程对地表能量平衡和气候的影响,发现森林吸收的净辐射最高且主要用于潜热分配,农田的净辐射最低且主要用于显热分配,草地净辐射和能量分配居中。③生态系统获得的净辐射主要受反照率的影响,净辐射分配受叶面积指数的调节。④冠层温度(℃)受反照率和净辐射在潜热和显热间分配的相对重要性的影响:年平均值为森林(7.7)>农田(7.64)>草地(6.67)。⑤降水对模拟结果有显著影响,是森林模拟差异的主要原因。在不同土地利用类型中,降水增加土壤水分,净辐射更多分配到潜热,较少分配到显热,降低冠层温度。
其他语种文摘 The influence of land use and cover change (LUCC), by means of biogeophysical processes, on surface energy balance and climate is highly concerned by climate scientists. Driven by spatially interpolated meteorological data and remote- sensing derived leaf area index validated by on- site observations, the Simple Biosphere model (SiB2) was used to simulate the surface energy balances for different land use types, i.e. farmland, grassland and forest in northeast China, from 2001 to 2010. The SiB2 model validation was done by comparing simulation results with observed surface energy balance components and temperature in 2003 for the three land use types. The effects of LUCC on surface energy balance and climate was based on the average simulation outcomes in 2001-2010. Biogeophysical parameters (including albedo and roughness length), surface energy balances(net radiation flux, latent heat flux and sensible heat flux) and climate (canopy temperature) were analyzed to demonstrate the influences of LUCC. The results show that: (1) The simulated and observed data have similar annual trends (R2>0.42) but there is a gap of ±30 W/m2 for energy balance components and ±4 ℃ for temperature, based on annual averages. The model imitated the surface energy balance and temperature very well, and was used in the simulation of surface energy balance in northeast China. Sensitivity analysis revealed that the major influencing factor of surface energy partitioning was leaf area index, not vegetation cover as set in the SiB2 model. (2) The impacts of different land use types on surface energy balance and climate through biogeophysical processes were simulated using the same meteorological data for the purpose of eliminating the effects of meteorological conditions. The 10 year averages showed that albedo was lowest in forest, followed by grassland and farmland, while forest > farmland > grassland for leaf area index, forest < grassland < farmland for Bowen Ratio and forest > farmland > grassland for roughness length. (3) Trapped net radiation by ecosystem was primarily determined by albedo. Forest traps the highest net radiation, which is mainly allocated into latent heat flux; farmland traps the lowest net radiation, which is mostly channeled into sensible heat flux, and grassland is in between for both net radiation and its partitioning. (4) Canopy temperature (℃) was determined by the relative importance of albedo and the partitioning of net radiation into latent and sensible heat fluxes: forest(7.7)>farmland (7.64) > grassland (6.67), on annual average. The highest temperature of forest was decided by the lowest albedo, but the higher temperature of farmland as compared to grassland was caused by the higher Bowen ratio of farmland. (5) Precipitation was the predominant impact variable on surface energy balances, and was the main cause of the deviation of SiB2 simulation for forest. With the increment of precipitation in all three land use types, the net radiation flux partitioning into latent heat flux was enhanced, and that into sensible heat flux was weakened, as rain increases soil water content; at the same time, canopy temperature also decreased. The results of this research support the warming effect of farmlands converted from grasslands, which have taken place in northeast China over the past few decades.
来源 地理科学进展 ,2014,33(6):815-824 【核心库】
关键词 地表能量平衡 ; 土地利用和覆被变化 ; SiB2模型 ; 叶面积指数 ; 反照率
地址

1. 中国科学院地理科学与资源研究所, 北京, 100101  

2. 河北省科学院地理科学研究所, 石家庄, 050011

语种 中文
文献类型 研究性论文
ISSN 1007-6301
学科 大气科学(气象学)
基金 国家973计划
文献收藏号 CSCD:5185143

参考文献 共 42 共3页

1.  关德新. 长白山红松针阔叶混交林林冠层叶面积指数模拟分析. 应用生态学报,2007,18(3):499-503 被引 15 次    
2.  韩翠华. 1951-2010年中国气温变化分区及其区域特征. 地理科学进展,2013,32(6):887-896 被引 54 次    
3.  何志强. 利用简单生物圈模式SiB2模拟锡林浩特草原地表湍流通量. 气候与环境研究,2011,16(3):353-368 被引 6 次    
4.  李建刚. 夏季不同天气条件下沙漠辐射和能量平衡的对比分析. 地理科学进展,2012,31(11):1443-1451 被引 12 次    
5.  刘纪远. 20世纪90年代中国土地利用变化时空特征及其成因分析. 地理研究,2003,22(1):1-12 被引 449 次    
6.  任春颖. 松嫩平原西部农牧交错区土地利用变化及驱动力分析--以吉林省通榆县为例. 干旱区资源与环境,2010,24(6):96-102 被引 11 次    
7.  宋开山. 1954年以来三江平原土地利用变化及驱动力. 地理学报,2008,63(1):93-104 被引 128 次    
8.  王海军. 中国北方近57年气温时空变化特征. 地理科学进展,2009,28(4):643-650 被引 36 次    
9.  王秋凤. 长白山森林生态系统CO2和水热通量的模拟研究. 中国科学:D辑:地球科学,2004,34(A02):131-140 被引 24 次    
10.  吴家兵. 东北阔叶红松林能量平衡特征. 生态学报,2005,25(10):2520-2526 被引 25 次    
11.  张强. 降水强迫对戈壁局地气候系统水、热输送的影响. 气象学报,1997,55(4):492-498 被引 23 次    
12.  赵晓松. 长白山阔叶红松林的零平面位移和粗糙度. 生态学杂志,2004,23(5):84-88 被引 23 次    
13.  Beringer J. Surface energy exchanges along a tundra- forest transition and feedbacks to climate. Agricultural and Forest Meteorology,2005,13(3/4):143-161 被引 3 次    
14.  Betts A K. Albedo over the boreal forest. Journal of Geophysical Research,1997,102(D24):28901-28909 被引 20 次    
15.  Betts R A. Biogeophysical effects of land use on climate: model simulations of radiative forcing and large- scale temperature change. Agricultural and Forest Meteorology,2007,142(2/4):216-233 被引 20 次    
16.  Betts R A. Offset of the potential carbon sink from boreal forestation by decreases in surface albedo. Nature,2000,408(6809):187-190 被引 37 次    
17.  Betts R A. Biogeophysical impacts of land use on presentday climate: near- surface temperature change and radiative forcing. Atmospheric Science Letters,2001,2(1/4):39-51 被引 10 次    
18.  Bonan G B. Forests and climate change: forcings, feedbacks, and the climate benefits of forests. Science,2008,320(5882):1444-1449 被引 259 次    
19.  Cesaraccio C. An improved model for determining degree-day values from daily temperature data. International Journal of Biometeorology,2001,45(4):161-169 被引 7 次    
20.  Christidis N. The role of land use change in the recent warming of daily extreme temperatures. Geophysical Research Letters,2013,40(3):589-594 被引 7 次    
引证文献 5 篇

1 刘凤山 吉林省LUCC对地表能量分配的影响 干旱区资源与环境,2016,30(5):113-117
被引 0 次

2 刘凤山 基于气象条件的巨菌草蒸散发动态研究 水资源与水工程学报,2018,29(3):243-248
被引 2 次

显示所有5篇文献

论文科学数据集

1. 高寒草甸和草地碳通量、气候、地表反照率数据集（2003-2016）

2. 黑河上游葫芦沟灌丛试验区气象、反照率、蒸散发数据集（2012-2014）

3. 木里煤矿区地表反照率、植被指数、植被覆盖度及土壤湿度图集（2000-2020）

数据来源：
国家青藏高原科学数据中心
PlumX Metrics
相关文献

 作者相关
 关键词相关
 参考文献相关

版权所有 ©2008 中国科学院文献情报中心 制作维护：中国科学院文献情报中心
地址：北京中关村北四环西路33号 邮政编码：100190 联系电话：(010)82627496 E-mail:cscd@mail.las.ac.cn 京ICP备05002861号-4 | 京公网安备11010802043238号