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| 1 | 近40年艾比湖湿地自然保护区生态干扰度时空动态及景观格局变化显示文摘以新疆艾比湖湿地为研究区,利用1972、1998、2007年及2013年4个时期的Landsat遥感影像作为数据源,并结合湿地的土地覆被状况,参考《全国土地利用分类》建立艾比湖湿地生态干扰类型分类系统。借助生态干扰度指数、景观格局指数以及GIS空间分析方法,探讨艾比湖湿地的生态干扰度的时空动态及景观响应机制。结果表明:(1)1972—2013年,研究区的生态干扰度总体呈现较为稳定的趋势,但其空间分布发生变化。生态干扰度类型之间的转化速率有加快的趋势。(2)1972—2013年,边缘密度指数(ED),平均形状指数(MSI),面积加权的平均斑块分形指数(AWMPFD)及景观分离度(DIVISION)4项景观格局指数大体呈上升的趋势,2013年区域的景观指数较为稳定。(3)景观格局指数与生态干扰程度有密切的一致性。生态干扰度与景观格局指数空间分布相关性大小依次为:边缘密度指数(ED)<景观丰度密度(PRD)<香农多样性指数(SHDI)<平均形状指数(MSI)<面积加权的平均斑块分形指数(AWMPFD)<景观分离度(DIVISION)。客观系统的认识和评价艾比湖湿地的生态系统及环境,可为干旱区实现自然环境的保护,协调土地利用及环境保护之间的关系提供较为实用的参考。 | 张月 张飞 王娟 任岩 Abduwasit Ghulam Hsiang-te KUNG 陈芸 | 2017 | 生态学报2017,37,21: | 50 |
| 2 | 基于LUCC的艾比湖区域生态风险评价及预测研究显示文摘以新疆内陆艾比湖流域典型区域为研究区,基于RS和GIS技术分析1998、2013年土地利用变化,尝试用CA-Markov模型预测2028年土地利用/覆盖变化.借助Fragstats3.4软件,基于土地利用/覆盖变化构建景观生态风险评价模型,分析1998~2028年景观生态风险的时空分异特征.结果表明:(1)1998~2013年,研究区土地类型面积变化明显.耕地面积增加量最大,增加的面积为152139hm^2,而未利用地面积减少量最大,减少的面积为67605hm^2.2013~2028年,耕地和裸露的河床及盐渍地的面积增加明显,增加的面积分别为30730hm^2,12427hm^2,而未利用地和水体的面积分别从954376hm^2和44889hm^2,减至921079hm^2和37157hm^2.(2)1998~2028年,研究区生态风险等级空间分布差异明显.高生态风险区面积变化较为显著,其面积分别约占总面积的36.6%,7.3%,23.7%.1998~2028年,全局Moran’s I值分别为0.436962,0.442202,0.506622,表现为一定程度的正相关.(3)1998~2028年,耕地分布在低,较低生态风险的比重上升,所占百分比分别为58.46%,78.58%,79.9%.林、草地类型的各生态风险等级的所占的比重的波动较大. | 张月 张飞 王娟 任岩 Abduwasit Ghulam Hsiang-te KUNG | 2016 | 中国环境科学2016,36,11: | 31 |
| 3 | 艾比湖流域地表水水质指标与水体指数关系研究显示文摘传统的水域水质监测手段不仅成本高,而且空间信息有限,难以对相关水域进行全面的监测与评价.利用遥感技术进行水域水质监测可克服这些局限.本文以新疆艾比湖流域为研究对象,结合2015年5月实测水质数据和从准同步Landsat OLI数据上提取的水体指数值,利用空间分析和多元统计方法进行分析.结果发现,水体指数EWI、AWEIsh、Vegetation index(VI)、NDWI、NWI、NEW与水质指标之间的相关性显著(0.55≤r≤0.88).因此,选用以上6种水体指数与水质指标进行回归分析并建立数学关系估算模型,发现模型均方根误差均较低.利用同期实测数据对估算模型进行精度验证,发现验证判定系数高,验证点的相对平均误差偏低,均方根误差偏小.与此同时,利用2015年10月的40个采样点对模型进行二次验证,发现验证的判定系数满足0.22 | 王小平 张飞 Abduwasit Ghulam 于海洋 任岩 王娟 张月 | 2017 | 环境科学学报2017,37,3: | 16 |
| 4 | 光谱指数的植被叶片含水量反演显示文摘利用光谱技术监测植被水分状况是了解植被生理状况及生长趋势的重要手段之一。选择艾比湖湿地自然保护区作为靶区。采用聚类分析、变量投影重要性分析(VIP)以及敏感性分析等方法,对植被不同含水量进行分级,并针对不同等级的植被含水量进行估算及验证。结果表明:(1)基于聚类分析中的欧氏距离的方法将植被叶片相对含水量划分为高等、中等、低等三个等级,其范围分别为70.76%~80.69%,53.27%~70.76%,31.00%~53.27%。在中红外与远红外(1 350~2 500nm)之间,反射率越低植被含水量越高;波长380~1 350nm范围,无此现象。(2)应用VIP方法可知,所选的8种植被水分指数VIP值均超过了0.8,说明植被水分指数预测能力均较强且差别不显著。其中MSI,GVMI与植被叶片相对含水量的非线性三次拟合函数效果最佳,MSI决定系数R2为0.6575和GVMI决定系数R2为0.674 2。植被叶片相对含水量在30%~45%范围,MSI指数的NE值最低,在45%~90%范围时,GVMI指数的NE值最低。NDWI1240指数的NE值在70%左右起伏较大,说明NDWI1240指数在植被含水量为70%左右,预测能力较差。(3)通过误差分析可知GVMI指数反演的结果误差最小,不同的植被指数对不同含水量的植被估算结果相差较为明显,因此分段估算植被含水量是有必要的。综上所述,利用高光谱遥感技术对监测艾比湖保护区植被生长及干旱环境提供基础研究。 | 张海威 张飞 张贤龙 李哲 Abduwasit Ghulam 宋佳 | 2018 | 光谱学与光谱分析2018,38,5: | 16 |
| 5 | A method for canopy water content estimation for highly vegetated surfaces-shortwave infrared perpendicular water stress index显示文摘In this paper, a new method for canopy water content (FMC) estimation for highly vegetated surfaces- shortwave infrared perpendicular water stress index (SPSI) is developed using NIR, SWIR wavelengths of Enhanced Thematic Mapper Plus (ETM+) on the basis of spectral features and distribution of surface targets with different water conditions in NIR-SWIR spectral space. The developed method is further explored with radiative transfer simulations using PROSPECT, Lillesaeter, SailH and 6S. It is evident from the results of validation derived from satellite synchronous field measurements that SPSI is highly correlated with FMC, coefficient of determination (R squared) and root mean square error are 0.79 and 26.41%. The paper concludes that SPSI has a potential in vegetation water content estimation in terms of FMC. | GHULAM Abduwasit KASIMU Alimujiang | 2007 | Science China Earth Sciences2007,50,9: | 15 |
| 6 | 新疆艾比湖流域地表水丰水期和枯水期水质分异特征及污染源解析显示文摘采用2015年艾比湖流域54个采样点的10个地表水水质指标数据,首先利用水质指数模型(WQI)和地统计学方法对流域水质污染情况进行全局评价,然后利用层次聚类法、判别分析法和因子分析法分析艾比湖流域地表水丰水期和枯水期水质分异特征.在水质时空分异特征研究的基础上,利用主成分回归分析法对艾比湖流域水质进行污染源解析.结果表明:艾比湖流域丰水期WQI值介于38~70之间,枯水期WQI值介于31~71之间,艾比湖流域丰水期的地表水水质污染情况比枯水期严重,而艾比湖、博尔塔拉河和精河靠近艾比湖湖区的河道污染程度均比其他河道严重.由聚类分析和判别分析得出艾比湖流域丰水期和枯水期的水质采样点在空间上均被分成A、B两组,A组包括艾比湖湖区西部、奎屯河、古尔图河和四棵树河,B组包括艾比湖湖区东部、精河和博尔塔拉河.艾比湖流域丰水期和枯水期的水体主要受到化学需氧量、溶解氧、氨氮和悬浮物浓度等指标的影响,B组水质污染指标的值相比于A组的值偏高,B组区域内存在高污染企业,艾比湖流域水环境治理工作需主要集中在B组所包括的艾比湖湖区、博尔塔拉河和精河.(4)艾比湖湖区、精河和博尔塔拉河地表水体的污染主要来自于有机物污染和营养物质污染,其次为工矿业污染;而奎屯河、古尔图河、四棵树河地表水体的污染主要来自于有机物污染,其次为营养物质污染,生物污染的影响较为微弱.该研究结果可为艾比湖流域地表水水环境改善和治理提供一定参考. | 任岩 张飞 王娟 张月 杨胜天 Abduwasit Ghulam Kung Hsiangte | 2017 | 湖泊科学2017,29,5: | 15 |
| 7 | 新疆艾比湖主要入湖河流精河与博尔塔拉河三维荧光光谱特性及其与水质的关系显示文摘以艾比湖主要入湖河流——精河与博尔塔拉河为研究对象,分别分析了精河与博尔塔拉河的水体溶解性有机质(DOM)的组成结构及水质参数与荧光指数的关系.利用平行因子分析法对三维荧光光谱(EEM)分析发现,精河与博尔塔拉河均含有C1(260/420 nm)腐殖酸等有机质、C2(240,240/490 nm)UVC类腐殖质、C3(220/280,300/450 nm)蛋白质类有机质和C4(260,270/530 nm)类腐殖质,且不同荧光组分结构具有一定差异性.为了进一步了解DOM组分特征,采用三维荧光区域积分法分析各区域标准体积百分比,结果表明精河与博尔塔拉河EEM的区域Ⅰ与区域Ⅱ蛋白质有机质含量最高,区域Ⅲ富里酸含量最低.相关性分析表明,主要入湖河流的水质参数与荧光指数中,自生源指数(BIX)与总氮(TN)浓度以及腐殖化指数(HIX)与铵态氮(NH_4^+-N)浓度的相关性较强,相关系数分别为0.831和0.684,且具有显著性;HIX与TN浓度的相关系数为0.604,达到显著性水平.进而对相关性较强的水质参数与荧光指数进行3次拟合,其中HIX与NH_4^+-N浓度的拟合效果最好,相关性系数为0.908,其次是BIX与TN浓度,相关性系数为0.844.总之,通过分析精河与博尔塔拉河三维荧光特征,以及探讨荧光指数与水质参数的关系,可为治理干旱区水环境问题提供理论依据和参考. | 张海威 张飞 李哲 Abduwasit Ghulam Kung Hsiangte 任岩 陈芸 | 2017 | 湖泊科学2017,29,5: | 13 |
| 8 | Focusing Seismic Energy along Faults through Time-Variable Rupture Modes: Wenchuan Earthquake, China显示文摘Field analysis and differential interferometry derived from Synthetic Aperture Radar (PALSAR) of the epicentral area of the May 12 2008 Mw 8.0 Wenchuan (汶川) earthquake zone reveal details about fault ruptures and ground displacements, with field-documented vertical offsets reaching 12 m along the trace of the main fault rupture, and PALSAR-measured horizontal displacements reaching 12.3 m. We document slip indicators on the fault scarp that show initially sub-horizontal then progressively steeper slip increments with time along the same fault during the 2 min earthquake, suggesting that the rupture propagated as a mixed Mode II–III fracture, with strike-slip movement at the tip directing energy from the initial rupture to points north of the epicenter, followed by vertical displacement in the interior of the slipped region. Field, seismic, and PALSAR-measured displacements are dominantly thrust near the epicentral region, and dextral in northeasterly areas, showing that slip was partitioned along the fault in space and time during the earthquake. The changing slip directions may correlate with three main pulses of energy release at 0, 23, and 57 s during the earthquake as recorded by seismograms. The earthquake generated massive landslides >100 km north of the epicenter along the trace of the fault. These massive sturzstroms formed where entire mountainsides collapsed and moved at high velocity down populated mountain valleys, jumping smaller mountains and ricocheting off steep canyon walls. These avalanches rode on cushions of water and compressed air that generated air blasts from beneath the debris, knocking down trees high on opposing mountain slopes. The concentration of massive landslides and ground deformation so far north of the epicenter was related to the Mode II–III fracture propagation focusing seismic energy along the fault towards the north, explaining why so much devastation occurred >100 km from the epicenter, such as in the destroyed city of Beichuan (北川). Understanding near-surface earthquake processes and geological hazards associated with massive earthquakes in populated mountainous areas has the potential to save many lives in the future. | Timothy M Kusky Abduwasit Ghulam 王璐 刘建国 李中全 陈骁 | 2010 | Journal of Earth Science2010,21,6: | 5 |
| 9 | Modified perpendicular drought index (MPDI): a real-time drought monitoring method显示文摘 | Abduwasit Ghulam Qiming Qin Tashpolat Teyip Zhao-Liang Li | 2007 | ISPRS Journal of Photogrammetry and Remote Sensing2007,,2: | 2 |
| 10 | Detecting areas of high-potential gold mineralization using ASTER data显示文摘 | Safwat Gabr Abduwasit Ghulam Timothy Kusky | 2010 | Ore Geology Reviews2010,38,: | 1 |
| 11 | Designing of the perpendicular drought index 显示文摘 | GHULAM ABDUWASIT QIN QIMING ZHAN ZHIMING | 2007 | Environmental Geology2007,52,6: | 1 |
| 12 | Designing of the perpendicular drought index显示文摘 | Abduwasit Ghulam Qiming Qin Zhiming Zhan | 2007 | Environmental Geology2007,,6: | 1 |
| 13 | Detecting areas of high-potential gold mineralization using ASTER data显示文摘 | Safwat Gabr Abduwasit Ghulam Timothy Kusky | 2010 | Ore Geology Reviews2010,,1: | 1 |
| 14 | Designing of the perpendicular drought index显示文摘 | Abduwasit Ghulam Qin Qiming Zhan Zhiming | 2007 | Environmental Geology2007,52,6: | 1 |
| 15 | Drought monitoring in Iran using the perpendicular drought indices显示文摘 | Alireza Shahabfar Abduwasit Ghulam Josef Eitzinger | 2012 | International Journal of Applied Earth Observations and Geoinformation2012,,: | 1 |
| 16 | Designing of the perpendicular drought index显示文摘 | Abduwasit Ghulam Qiming Qin Zhiming Zhan | 2007 | Environmental Geology2007,,6: | 1 |
| 17 | Detecting areas of high-potential gold mineralization using ASTER data显示文摘 | Safwat Gabr Abduwasit Ghulam Timothy Kusky | 2010 | Ore Geology Reviews2010,,38: | 1 |
| 18 | Lithological mapping in the Central Eastern Desert of Egypt using ASTER data显示文摘 | Reda Amer Timothy Kusky Abduwasit Ghulam | 2009 | Journal of African Earth Sciences2009,,2: | 1 |
| 19 | Designing of the Perpendicular Drought Index显示文摘 | Abduwasit Ghulam Qiming Qin Zhiming Zhan | | 0,,06: | 1 |
| 20 | Modified Perpendicular Drought Index (MPDI): A Real-time Drought Monitoring Method显示文摘 | Abduwasit Ghulam Qin Qiming | 2007 | ISPRS Journal of Photogrammetry and Remote Sensing2007,62,: | 1 |