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Simulation analysis on the regulation of overflow ecological water consumption in arid areas——A case study in the Canmrik ecological area of the mainstream zone of the Tarim River

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Science china Earth sciences 2007年第S1期 1-8页

作者： CHEN Xi1, HUANG Yue1, 2, QIAN Jing1, 3, LIU HaiLong1, 2, FENG XianWei1, 2, LIU Ying1, 2, BAO AnMing1 & wang WeiSheng1 1 xinjiang institute of ecology and geography, chinese academy of sciences, ürümqi 83.011, china 2 Graduate University of chinese academy of sciences, Beijing 100049, china 3 Hong Kong Baptist University, Hong Kong, china

After analyzing the regulation of overflow ecological water consumption in the Canmrik ecological area of mainstream zone of the Tarim River, in this paper a model of ecological bifurcation is developed, the dynamic overflow process of ecological bifurcation is simulated, and the quantitative relationships between the volume of ecological water consumption and the ecological conservation extent and overflow time are analyzed using GIS, advance of freshet and RS means. The results reveal that the effects of discharge and time of ecological bifurcation on the efficiency of ecological water consump-tion are significant, there is a geometrical exponential relationship between the efficiency of ecological bifurcation and the water supply with different discharges and different times under the same eco-logical water consumption, hypsography plays an important role in ecological water consumption, the regulation of ecological water consumption cannot be equated with the ordinary farming irrigation system, a serious water waste will result and the prospective ecological benefits will not be able to be achieved if an ordinary ecological bifurcation is implemented. The efficiency of ecological water con-sumption can be increased by 30% by selecting the bifurcation schemes in an optimized way, which is of the utmost importance for arid areas with shortage of water resources.

关键词： continental river ecological water consumption artificial regulation simulation analysis

Snowpack variations and their hazardous effects under climate warming in the central Tianshan Mountains

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Advances in Climate Change Research 2024年第3期15卷 442-451页

作者： Jian-Sheng HAO Yan wang Lan-Hai LI Key Laboratory of Land Surface Pattern and Simulation Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of Sciences(CAS)Beijing 100101China xinjiang Key Laboratory of Water Cycle and Utilization in Arid Zone Urumqi 830011China State Key Laboratory of Desert and Oasis ecology Xinjiang Institute of Ecology and GeographyChinese Academy of SciencesUrumqi 830011China Tianshan Snowcover and Avalanche Observation and Research Station of xinjiang Xinyuan 835800China CAS Research Center for ecology and Environment of Central Asia Urumqi 830011China

Climate change alters snowpack evolution,which in turn influences the likelihood of snow avalanches and flood *** lack of systemic observational data on key snow characteristics in high mountains remains a scientific challenge in terms of systematically elucidating the dynamic chain of variations in climate-snowpack-snow *** restricts our understanding and poses challenges in the prediction of snow-related disaster *** such,this study analysed the variations of temperature and snowfall and the physical characteristics of snowpacks based on ground-based observations from the Kunse River Valley situated in the Tianshan Mountains from 1967 to *** results reveal that the temperature increased significantly by 0.32°C per decade(p<0.01)during the snow season,along with more extreme snowfall *** snow-cover duration was observed to have been shortened by 4.77 d per decade(p<0.01)from 1967 to 2021,which is characterised by later snow-cover onset and earlier ***,average and maximum snow depths increased along with an increase in peak snow water equivalent,thus indicating a higher frequency of extremely scarce or abundant snow *** low snowpack temperature gradient and earlier snowmelt dates in spring lead to earlier occurrences of snowmelt floods and wet *** the risks of these events increase,they pose greater threats to farmlands,road transportation,water-electricity infrastructure and several other human ***,these insights are critical for providing vital information that can deepen our understanding of the impact of climate change on snowpack characteristics and improve management strategies for snow-related disaster prevention and mitigation.

关键词： Climate change Snowpack variations Snow-related disaster Tianshan Mountains

Effects of moisture and dose of Microcoleus vaginatus on microalgal-microbial biomass and activities of soil enzyme of microbiotic crusts indoors

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Effects of moisture and dose of Microcoleus vaginatus on mic...

利用改进SA算法估计河流水质参数的仿真实验

中国藻类学会第八次会员大会暨第十六次学术讨论会

作者： Bingchang Zhang~1,Yuanming Zhang~(1*),Yangui Su~1,Jingzhu wang~1 1 Key Laboratory of Biogeography and Bioresources in Arid Land,xinjiang institute of ecology and geography,CAS,Ururaqi,china

＜正＞Microcoleus vaginatus Gom.,the dominant cyanobacterial species in microbiotic crusts, plays a critical role in forming microbiotic *** moisture should be offered to inoculate cyanobacteria to recover microbiotic...

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系统仿真学报 2003年第12期15卷 1750-1752,1762页

作者：郭建青李彦王洪胜马健长安大学环境科学与工程学院西安710054 中国科学院新疆生态与地理研究所新疆乌鲁木齐830011

将改进模拟退火法应用于求解分析河流水团示踪试验数据,确定河流水质参数的函数优化问题。针对标准SA算法收敛速度缓慢的弱点,采取了增加附加约束条件、设置内阈值提前降温和增加记忆功能等措施对算法进行了改进。仿真实验结果表明:1) ... 详细信息

将改进模拟退火法应用于求解分析河流水团示踪试验数据,确定河流水质参数的函数优化问题。针对标准SA算法收敛速度缓慢的弱点,采取了增加附加约束条件、设置内阈值提前降温和增加记忆功能等措施对算法进行了改进。仿真实验结果表明:1) 改进措施能够明显地提高算法收敛速度,并可得到满意的参数计算结果;2) 内循环次数不会对外循环次数产生明显的影响;3) 内阈值的设置对算法的收敛速度影响非常明显,当其值与外阈值接近或相等时,算法的收敛性最佳;4) 在研究的具体问题情况下,降温指数不宜过大,其在0.4—0.65之间取值为宜。

关键词：模拟退化法算法改进河流水质参数参数优化估计算法控制参数

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近四十年来人类活动对我国干旱区湖泊的影响

干旱区地理 1989年第1期12卷 1-5页

作者：王树基中国科学院新疆地理研究所

本文通过大量资料,分析了近四十年来我国干旱地区人类活动对湖泊变化的影响,提出湖泊日渐衰亡、水质变坏,生态环境恶化的严重性,吁请社会各界重视这一问题。

关键词：人类活动干旱地区湖泊变化

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三工河流域绿洲景观格局的定量分析

水土保持学报 2002年第3期16卷 51-55页

作者：王玉朝赵成义蒋平安宋郁东云南省地理研究所云南昆明650223 中国科学院新疆生态与地理研究所新疆乌鲁木齐830011 新疆农业大学新疆乌鲁木齐830052

荒漠绿洲景观格局是不同类型、不同大小、不同形状和不同开发程度的地块 (生态系统 )在空间上构成的镶嵌体。景观镶嵌结构的差异反映出不同的功能 ,通过计算一些景观指数 ,对荒漠绿洲景观格局作出定量分析。人类活动强烈的景观要素或纯... 详细信息

荒漠绿洲景观格局是不同类型、不同大小、不同形状和不同开发程度的地块 (生态系统 )在空间上构成的镶嵌体。景观镶嵌结构的差异反映出不同的功能 ,通过计算一些景观指数 ,对荒漠绿洲景观格局作出定量分析。人类活动强烈的景观要素或纯粹的人工景观中 ,表征复杂的景观指数往往高于人类活动较轻的景观要素 ,而表征稳定性的指数正好相反 ;处在干旱内陆荒漠中的绿洲景观 ,其抵抗外来干扰的能力低 ,恢复力弱 ,人类不合理的活动极易破坏其稳定状态 ,从而导致荒漠化发生。

关键词：定量分析景观格局三工河流域干旱区荒漠绿洲

三塘湖盆地油气勘探开发新领域、新类型及资源潜力

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石油学报 2024年第1期45卷 115-132页

作者：支东明李建忠周志超焦立新范谭广李斌梁辉王兴刚中国石油吐哈油田公司新疆哈密839009 中国石油吐哈油田公司勘探开发研究院新疆哈密839009

过去30年,三塘湖盆地在侏罗系低压砂岩油藏、二叠系凝灰岩油藏和石炭系火山岩风化壳油藏的油气勘探开发中取得了重要进展,探明石油地质储量为1.68×10^(8)t,建成56×10^(4)t/a的原油产能。三塘湖盆地剩余油气资源潜力大,但已探明未动用... 详细信息

过去30年,三塘湖盆地在侏罗系低压砂岩油藏、二叠系凝灰岩油藏和石炭系火山岩风化壳油藏的油气勘探开发中取得了重要进展,探明石油地质储量为1.68×10^(8)t,建成56×10^(4)t/a的原油产能。三塘湖盆地剩余油气资源潜力大,但已探明未动用储量不足,需要落实油气勘探开发新领域和新类型,实现新的发现和突破,支撑稳健可持续的油气生产。基于盆地构造、烃源岩分布、储层特征研究及煤岩实验取得的认识,提出了南部冲断带、洼陷区页岩油、源边粗碎屑油藏和石炭系火山岩内幕型油藏4个新领域,其石油地质资源量分别为0.86×10^(8)t、2.45×10^(8)t、0.69×10^(8)t和0.96×10^(8)t,以及侏罗系西山窑组煤层气和八道湾组富油煤2种新类型,其煤层气资源量为1427×10^(8)m^(3),焦油资源量为60.20×10^(8)t,资源潜力大,勘探开发前景广阔。根据勘探程度、地质条件和开发技术,按照战略展开、战略突破和战略准备3个层面进行了部署安排。

关键词：资源潜力勘探开发前陆冲断带页岩油火山岩油藏煤基油气三塘湖盆地

Decreasing productivity of pine forests on the southern edge of the Mongolian Plateau as indicated by tree rings

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Journal of Forestry Research 2024年第5期35卷 171-181页

作者： Zhuolan Shen Shijie wang Feng Chen Heli Zhang Xiaoen Zhao Youping Chen Mao Hu Yunnan Key Laboratory of International Rivers and Transboundary Eco‑Security Institute of International Rivers and Eco‑SecurityYunnan UniversityKunming 650500People’s Republic of China Southwest United Graduate School Kunming 650500People’s Republic of China Key Laboratory of Tree-Ring Physical and Chemical Research of china Meteorological Administration/xinjiang Laboratory of Tree-Ring ecology Institute of Desert MeteorologyChina Meteorological AdministrationÜrümqi 830002People’s Republic of China

Vegetation productivity on the southern edge of the Inner Mongolian Plateau,which plays a vital role in the ecological environment and in the arable and pasto-ral production in this region,can be characterized by the NDVI(normalized difference vegetation index).However,the observed NDVI data span only the last~40 *** growth of Pinus tabulaeformis *** strongly correlated with the NDVI,making it a valuable proxy for extend-ing the length of observed NDVI *** this study,we reconstructed an NDVI series for 1776–2021 for the Daqing Mountains,based on a tree-ring width *** reconstructed data accounted for 55%of the variance in the observed data,and its statistical characteristics and validation indicate that the reconstruction is *** correlation analysis demonstrated the consistency of climate signals in central Inner Mongolia in both the arable and pastoral *** results of superposed epoch analysis revealed a good temporal consistency between drought and flood events and the reconstructed NDVI sequence in this region.

关键词： Drought Semi-arid area Peru current Yinshan Mountains

克拉玛依农业开发区水土性状与荒漠植物多样性的关系

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水土保持学报 2004年第2期18卷 186-188,191页

作者：钱亦兵周华荣徐曼蒋进王雪芹李东梅赵从举中国科学院新疆生态与地理研究所新疆乌鲁木齐830011 克拉玛依农业综合开发办公室克拉玛依834000

通过分析克拉玛依农业开发区水土性状、荒漠植被演替规律和群落多样性,了解到区内植物的生长更新主要靠大气降水来维系,而土壤理化指标中的有机质、全N和全K含量增加是植物群落发展多样性的胁迫因素。与之相反,一定限度下的较高pH和粒度... 详细信息

通过分析克拉玛依农业开发区水土性状、荒漠植被演替规律和群落多样性,了解到区内植物的生长更新主要靠大气降水来维系,而土壤理化指标中的有机质、全N和全K含量增加是植物群落发展多样性的胁迫因素。与之相反,一定限度下的较高pH和粒度值,则可促进植物多样性水平的提高。分析结果还表明,土壤的全盐、全P和水分是影响植物多样性的潜在因素。

关键词：克拉玛依农业开发区水土性状荒漠植物多样性