Results 61 to 70 of about 2,553 (162)
Study on the Spatial and Temporal Changes of the Vegetation Cover and the Driving Factors in Panzhihua City from 1990 to 2020 [PDF]
[Objective] To investigate the spatial and temporal variations and the driving factors of the vegetation cover in Panzhihua City, and to provide a theoretical basis for Panzhihua City to formulate regional ecological environmental protection programs and
HE Shuqin +3 more
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Indian Pangolin in Lamjung Requires Urgent Attention 尼泊尔拉姆琼县地区的印度穿山甲急需关注
Wildlife Letters, Volume 2, Issue 4, Page 204-213, December 2024.This study documented the first evidence of the Indian pangolin in Lamjung district, Nepal, finding three burrows and rescue evidence in Simalchaur Naringhat Community Forest. The burrows identified at an elevation of 530 m and characterized by moderate crown and ground cover (26%–50%), a 25° slope, and predominantly red soil, are indicative of a ...
Asmit Neupane +4 more
wiley +1 more source
Shuitu Baochi Xuebao, 2021 植被覆盖度变化及其与驱动因子关系的研究是开展大规模植被恢复效益评估的基础，而目前对西南槽谷地区植被绿化的时空变化模式及其驱动因素的认识并不明晰，不利于进一步生态建设。基于2000—2018年西南槽谷区NDVI、气温、降雨、DEM、土地覆被和人口密度数据，应用线性趋势回归分析和Hurst指数分析等方法以及地理探测器模型，探究了西南槽谷区植被覆盖的时空变化特征和驱动因素，预测未来变化趋势。结果表明：（1）近19年来NDVI范围介于0.79~0.84，总体呈波动上升趋势，岩溶区植被NDVI （0.003 17/
NDVI变化特征及影响因素李晓丽 +2 more
doaj
, 2018 结合坡面微地形变化,从土壤微生物群落多样性角度研究典型缓丘区不同坡位上土壤微生物群落特征,了解微地形生境下土壤微生物群落变化趋势.研究结果表明,土壤微生物群落培养的平均颜色变化率(AWCD)增长曲线呈现中坡位>坡顶>下坡位>上坡位>坡底的规律,中坡位土壤微生物群落代谢活性最高,坡底土壤微生物群落对基质的利用能力最低;在土壤微生物多样性指数比较中发现,除McIntosh均一度指数变化不显著外,其余土壤微生物多样性指数在不同坡位上存在显著差异.其中 ...
杜勇 +4 more
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Hazard assessment of landslides in Lancang County, Yunnan Province based on weighted information value model [PDF]
Lancang County is located in the longitudinal tectonic zone of western Yunnan, where landslides are frequently developed by strong tectonic movement and increasing human activities, thus posing a significant threat to the safety and security of the local
Lanting WANG +3 more
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Physiological Entomology, Volume 49, Issue 2, Page 67-90, June 2024.Olfactory receptor neurons (ORNs) in insect antennae project axons to glomeruli in the antennal lobe for odor processing by local interneurons. Uniglomerular projection neurons (PNs) relay processed odor information to the mushroom body and lateral horn.
Saleem Jaffar, Guy Smagghe, Yongyue Lu
wiley +1 more source
Shuitu Baochi Xuebao, 2021 为深入探索不同植被盖度及其格局在不同冲刷流量下的坡面侵蚀过程机理，利用野外人工冲刷试验，以自然恢复草本植被小盖度格局、坡上相对聚集格局、坡中相对聚集格局、坡下相对聚集格局和较大盖度格局为研究对象，通过引入水流路径长度和水流阻抗指数，分析了不同植被盖度及格局对坡面侵蚀和水文连通性的影响作用。结果表明：（1）植被盖度及格局可影响坡面的侵蚀状况。坡面植被盖度为13.5%的产流产沙量分别是盖度为34.0%坡面对应值的2.36，3.02倍；同时与坡上和坡中相对聚集格局相比，坡下相对聚集格局的坡面产流产沙量最多 ...
闫帅旗 +4 more
doaj
Shuitu Baochi Xuebao, 2021 采用GIS技术与地统计方法，基于黄土高原2000—2018年的MODIS遥感影像，选取归一化植被指数探讨研究区植被时空变化特征，采用相似生境法预测黄土高原植被恢复潜力。结果表明：黄土高原2000—2018年低植被盖度区域面积减少，高植被覆盖度面积不断增加。黄河中游头道拐至龙门区间植被变化最为显著，平均增长速率为0.015~0.050/a，其中，延河上游、清涧河及秃尾河流域的植被盖度增长速率最高，均超过了0.015/a。受城市化影响，汾渭平原的下游干流区植被盖度显著降低 ...
赵广举 +5 more
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Shuitu Baochi Xuebao, 2021 为探讨自然环境要素对典型干旱事件的响应与路径，以2019年厄尔尼诺极端干旱事件为背景，在气象站观测数据基础上识别出1个干旱年份（2019年）和1个正常年份（2013年），使用landsat8影像反演了哈尼梯田区2个年份的地表温度（TEM）、土壤水分（TVDI）、植被覆盖（NDVI）、地表水体（NDWI）等自然环境要素数据，进一步探讨了哈尼梯自然环境要素对极端干旱事件的响应状态、相互作用、影响路径等问题。结果表明：哈尼梯田区在极端干旱事件下气温增加了约2℃，植被指数下降了约0.04，土壤水分指数增加了约0.
丁银平, 刘志林, 角媛梅, 胡涛
doaj
Analysis of Soil Erosion Intensity Change Trajectories and Their Driving Factors in Yunnan Province Based on An Improved Stability Mapping Method [PDF]
[Objective] To elucidate the change trajectories of soil erosion intensity in Yunnan Province from 1990 to 2022, and analyze the types of changes and their driving factors, in order to provide a scientific foundation for effective soil erosion control ...
HUANG Bangmei +4 more
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