Please wait a minute...
Journal of Arid Land
Research Articles     
Changes in stress within grassland ecosystems in the three counties of the source regions of the Yangtze and Yellow Rivers
YiPing FANG, DaHe QIN, YongJian DING
1 Institute of Mountain Disaster & Environment, Chinese Academy of Sciences, Chengdu 610041, China; 2 Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China
Download:   PDF(288KB)
Export: BibTeX | EndNote (RIS)      

Abstract  Based on a database of more than 40 years of second production process and energy flow records for Maduo, Qumalai and Yushu counties, a dynamic model of the stress within grassland ecosystems was established using a nonlinear regression method for this source regions of the Yangtze and Yellow Rivers. The results show that dynamic curves of stress within grassland ecosystems in the three counties were in the shape of an inverted “U” during the period 1965–2007. It also revealed that the variation in actual amount of livestock inventories reflected the general trends of the stress within the grassland ecosystems in the source regions, although there were many other factors for the increase or reduction in grassland ecosystem stress.

Key wordssoil water      water stress      deficit irrigation      numerical simulation      photosynthesis      arid region     
Received: 07 January 2010      Published: 07 June 2010
Corresponding Authors: YiPing FANG     E-mail: ypfang@imde.ac.cn; ypfang2004 @yahoo.ca
Cite this article:

YiPing FANG, DaHe QIN, YongJian DING. Changes in stress within grassland ecosystems in the three counties of the source regions of the Yangtze and Yellow Rivers. Journal of Arid Land, 2010, 2(2): 116-122.

URL:

http://jal.xjegi.com/10.3724/SP.J.1227.2010.00116     OR     http://jal.xjegi.com/Y2010/V2/I2/116

[1] Batjargal BUYANTOGTOKH, Yasunori KUROSAKI, Atsushi TSUNEKAWA, Mitsuru TSUBO, Batdelger GANTSETSEG, Amarsaikhan DAVAADORJ, Masahide ISHIZUKA, Tsuyoshi T SEKIYAMA, Taichu Y TANAKA, Takashi MAKI. Effect of stones on the sand saltation threshold during natural sand and dust storms in a stony desert in Tsogt-Ovoo in the Gobi Desert, Mongolia[J]. Journal of Arid Land, 2021, 13(7): 653-673.
[2] WU Jun, DENG Guoning, ZHOU Dongmei, ZHU Xiaoyan, MA Jing, CEN Guozhang, JIN Yinli, ZHANG Jun. Effects of climate change and land-use changes on spatiotemporal distributions of blue water and green water in Ningxia, Northwest China[J]. Journal of Arid Land, 2021, 13(7): 674-687.
[3] HUANG Laiming, ZHAO Wen, SHAO Ming'an. Response of plant physiological parameters to soil water availability during prolonged drought is affected by soil texture[J]. Journal of Arid Land, 2021, 13(7): 688-698.
[4] DING Wenli, XU Weizhou, GAO Zhijuan, XU Bingcheng. Effects of water and nitrogen on growth and relative competitive ability of introduced versus native C4 grass species in the semi-arid Loess Plateau of China[J]. Journal of Arid Land, 2021, 13(7): 730-743.
[5] WANG Chunyuan, YU Minghan, DING Guodong, GAO Guanglei, ZHANG Linlin, HE Yingying, LIU Wei. Size- and leaf age-dependent effects on the photosynthetic and physiological responses of Artemisia ordosica to drought stress[J]. Journal of Arid Land, 2021, 13(7): 744-758.
[6] JIA Wuhui, YIN Lihe, ZHANG Maosheng, ZHANG Xinxin, ZHANG Jun, TANG Xiaoping, DONG Jiaqiu. Quantification of groundwater recharge and evapotranspiration along a semi-arid wetland transect using diurnal water table fluctuations[J]. Journal of Arid Land, 2021, 13(5): 455-469.
[7] LANG Man, LI Ping, WEI Wei. Gross nitrogen transformations and N2O emission sources in sandy loam and silt loam soils[J]. Journal of Arid Land, 2021, 13(5): 487-499.
[8] HU Haiying, ZHU Lin, LI Huixia, XU Dongmei, XIE Yingzhong. Seasonal changes in the water-use strategies of three herbaceous species in a native desert steppe of Ningxia, China[J]. Journal of Arid Land, 2021, 13(2): 109-122.
[9] HUANG Xiaotao, LUO Geping, CHEN Chunbo, PENG Jian, ZHANG Chujie, ZHOU Huakun, YAO Buqing, MA Zhen, XI Xiaoyan. How precipitation and grazing influence the ecological functions of drought-prone grasslands on the northern slopes of the Tianshan Mountains, China?[J]. Journal of Arid Land, 2021, 13(1): 88-97.
[10] Mahsa MIRDASHTVAN, Mohsen MOHSENI SARAVI. Influence of non-stationarity and auto-correlation of climatic records on spatio-temporal trend and seasonality analysis in a region with prevailing arid and semi-arid climate, Iran[J]. Journal of Arid Land, 2020, 12(6): 964-983.
[11] JIA Hao, WANG Zhenhua, ZHANG Jinzhu, LI Wenhao, REN Zuoli, JIA Zhecheng, WANG Qin. Effects of biodegradable mulch on soil water and heat conditions, yield and quality of processing tomatoes by drip irrigation[J]. Journal of Arid Land, 2020, 12(5): 819-836.
[12] FENG Jian, ZHAO Lingdi, ZHANG Yibo, SUN Lingxiao, YU Xiang, YU Yang. Can climate change influence agricultural GTFP in arid and semi-arid regions of Northwest China?[J]. Journal of Arid Land, 2020, 12(5): 837-853.
[13] CHEN Ditao, LIU Wenjiang, HUANG Farong, LI Qian, Friday UCHENNA-OCHEGE, LI Lanhai. Spatial-temporal characteristics and influencing factors of relative humidity in arid region of Northwest China during 1966-2017[J]. Journal of Arid Land, 2020, 12(3): 397-412.
[14] GONG Yidan, XING Xuguang, WANG Weihua. Factors determining soil water heterogeneity on the Chinese Loess Plateau as based on an empirical mode decomposition method[J]. Journal of Arid Land, 2020, 12(3): 462-472.
[15] ZHENG Jing, FAN Junliang, ZOU Yufeng, Henry Wai CHAU, ZHANG Fucang. Ridge-furrow plastic mulching with a suitable planting density enhances rainwater productivity, grain yield and economic benefit of rainfed maize[J]. Journal of Arid Land, 2020, 12(2): 181-198.