[1] Rank A B, Dugas W A. Carbon dioxide fluxes over a northern, semiarid, mixed grass prairie. Agricultural and Forest Meteorology, 2001, 108: 317-326. [2] Dugas W A, Heuer M L, Msyeux H S. Carbon dioxide fluxes over Bermudagrass, native prairie, and sorghum. Agricultural and Forest Meteorology, 1999, 93: 121-139. [3] Shaver G R, Rastetter E B, Salmon V, et al . Pan-Arctic modeling of net ecosystem exchange of CO 2 . Philosophical Transactions of the Royal Society B-biolonical Sciences, 2013, 368: 1-13. [4] Fu Y L, Yu G R, Wang Y F, et al . Impact of water stress on photosynthesis and respiration over Leymus chinensis ecosystem in Inner Mongolia. Science in China (Ser.D) Earth Sciences, 2006, 36(Supp, I): 183-193. [5] Hao Y B, Wang Y F, Sun X M, et al . Seasonal variation in carbon exchange and its ecological analysis over Leymus chinensis steppe in Inner Mongolia. Science in China (Ser.D) Earth Sciences, 2006, 36: 174-182. [6] Zhao Y P, Zhang X Z, Shi P L, et al . Impact of drought stress on net CO 2 exchange above an alpine grassland ecosystem in the Gentral Tibetan Plateau. Journal of Resources and Ecology, 2013, 4(4): 327-336. [7] Li Y Q, Zhao H L, Zhao X Y, et al . Responses of soil respiration to air temperature from June to September in different sand dunes, Horqin sandy land. Journal of Desert Research, 2008, 28(2): 249-254. [8] Chen N N, Guan D X, Jin C J, et al . Characteristics of soil respiration on Horqin meadow. Chinese Journal of Grassland, 2011, 33(5): 82-87. [9] LI-COR Biosciences, Eddy Pro 4.0: Help and User’s Guide. Lincoln[EB/OL]. [2013-12-02]. http://envsupport.licor.com/help/EddyPro4/Default.htm. [10] Burba G G, McDermitt D K. Addressing the influence of instrument surface heat exchange on the measurements of CO 2 flux from open-path gas analyzers. Global Change Biology, 2008, 14: 1854-1876. [11] Li Y J, Xu Z Z, Wang Y L, et al . Latent and sensible heat fluxes and energy balance in a maize agroecosystem. Chinese Journal of Plant Ecology, 2007, 31(6): 1132-1144. [12] Falge E, Baldocchi D D, Olson R J, et al . Gap filling strategies for defensible annual sums of net ecosystem exchange. Agricultural and Forest Meteorology, 2001,107: 43-69. [13] Raich J W, Schlesinger W H. The global carbon dioxide flux in soil respiration and its relationship to vegetation and climate. Tellus, 1992, 44: 81-99. [14] Xu L J, Tang H J, Yang G X, et al . Variation of net ecosystem carbon flux and its impact factors on Stipa baicalensis steppe in the growing season. Acta Prataculturae Sinica, 2011, 20(6): 287-292. [15] Shi P L, Sun X M, Xu L L, et al . Net ecosystem CO 2 exchange and controlling factors in a Steppe-Kobresia meadow on Tibetan Plateau. Science in China (Ser.D), 2006, 36(Supp, I): 194-203. [16] Suyker A E, Verma S B, Burba G G, et al . Gross primary production and ecosystem respiration of irrigated maize and irrigated soybean during a growing season. Agricultural and Forest Meteorology, 2005, 131(3/4): 180-190. [17] Chen J L, Wang J, Wang Q, et al . LAI and light transmittance measurement of isolated Vitex shrub using LAI-2200 PCA. Chinese Journal of Agrometeorology, 2014, 35(4): 373-379. [18] Xu L L, Zhang X Z, Shi P L, et al . Photoionization efficiency in response to temperature under low pressure of alpine meadow on Tibetan Platean. Science in China (Ser.D), 2006, 36(Supp, II ): 204-209. [19] Xu D Q, Li D Y, Shen Y G, et al . On midday depression of photosynthesis of wheat leaf under field conditions. Acta Phytophysiologia Sinica,1984, 10: 269-276. [20] Bunce J A. Afternoon inhibition of photosynthesis in maize. Field Crop Research, 1990, 24: 261-271. [21] Fu Y L, Yu G R, Sun X M, et al . Depression of net ecosystem CO 2 exchange in semi-arid Leymus chinensis steppe and alpine shrub. Agricultural and Forest Meteorology, 2006, 137: 234-244. [22] Lawerence B, Flanagan, Linda A, et al . Seasonal and interannual variation in carbon dioxide exchange and carbon balance in a northern temperate grassland. Global Change Biology, 2002, 8: 599-615. [23] Zhang F W, Li Y N, Zhao X Q, et al . Effect of one precipitation process on CO 2 flux and themal transportation in alpine meadow of Qinghai-Tibetan plateau. Chinese Journal of Ecology, 2008, 27(10): 1685-1691. [24] Zhang F W, Li Y N, Cao G M, et al . CO 2 fluxes and their driving factors over alpine meadow grassland ecosystems in the northern shore of Qinghai Lake, China. Chinese Journal of Plant Ecology, 2012, 36(3): 187-198. [25] Wang W, Wang T, Peng S S, et al . Review of winter CO 2 efflux from soils: a key process of CO 2 exchange between soil and atmosphere. Chinese Journal of Plant Ecology, 2007, 31(3): 394-402. [26] Chen J, Cao J J, Wei Y L, et al . Effect of grazing exclusion on soil respiration during the dormant in alpine meadow grassland ecosystems on the northern shore of Qinghai Lake, China. Acta Prataculturae Sinica, 2014, 23(6): 78-86. [27] Verma S B, Kim J, Clement R J, et al . Water vapor and carbon dioxide exchange at a centrally located prairie site during FIFE. Journal of Geophysics Research,1992, 97: 18629-18639. [4] 付玉玲,于贵瑞,王艳芬. 水分胁迫对内蒙古羊草草原光合和呼吸作用的影响. 中国科学D辑, 地球科学, 2006, 36(增刊I): 183-193. [5] 郝彦宾, 王艳芬, 孙晓敏, 等. 内蒙古羊草草原碳交换季节变异及其生态学解析. 中国科学, 2006, 36: 174-182. [7] 李玉强, 赵哈林, 赵学勇, 等. 科尔沁沙地夏秋(6-9月)季不同类型沙丘土壤呼吸对气温变化的响应. 中国沙漠, 2008, 28(2): 249-254. [8] 陈妮娜, 关德新, 金昌杰, 等. 科尔沁草甸草地土壤呼吸特征. 中国草地学报, 2011, 33(5): 82-87. [11] 李祎君, 许振柱, 王云龙, 等. 玉米农田水热通量动态与能量闭合分析. 植物生态学报, 2007, 31(6): 1132-1144. [14] 徐丽君,唐华俊,杨桂霞, 等. 贝加尔针茅草原生态系统生长季碳通量及其影响因素分析. 草业学报, 2011, 20(6): 287-292. [15] 石培礼, 孙晓敏, 徐玲玲, 等. 西藏高原草原化嵩草草甸生态系统CO 2 净交换及其影响因子. 中国科学D辑, 地球科学, 2006, 36(增刊I): 194-203. [17] 陈景玲, 王静, 王谦, 等. 植物冠层分析仪测定荆条孤立冠层叶面积指数和透光率的分析. 中国农业气象, 2014, 35(4): 373-379. [18] 徐玲玲, 张宪洲, 石培礼, 等. 青藏高原低气压条件下高寒草甸群落光量子效率对温度的响应. 中国科学D辑, 地球科学, 2006, 36(增刊I): 204-209. [19] 许大全, 李德耀, 沈允刚, 等. 田间小麦叶片光合作用“午睡”现象的研究. 植物生理学报,1984,10: 269-276. [23] 张法伟, 李英年, 赵新全, 等. 一次降水过程对青藏高原高寒草甸CO 2 通量和热量输送的影响. 生态学杂志, 2008, 27(10): 1685-1691. [24] 张法伟, 李英年, 曹广民, 等. 青海湖北岸高寒草甸草原生态系统CO 2 通量特征及其驱动因子. 植物生态学报, 2012, 36(3): 187-198. [25] 王娓, 汪涛, 彭书时, 等. 冬季土壤呼吸:不可忽视的地气CO 2 交换过程. 植物生态学报, 2007, 31(3): 394-402. [26] 陈骥, 曹军骥, 魏永林, 等. 青海湖北岸高寒草甸草原非生长季土壤呼吸对温度和湿度的响应. 草业学报, 2014, 23(6): 78-86. |