Results 21 to 30 of about 55 (52)
Characteristics of Land Use Change and Evaluation of Ecological Sensitivity in Chongqing [PDF]
[Objective] Chongqing, as the economic center of the upper reaches of the Yangtze River in China and a barrier to ensure ecological security in the middle and lower reaches of the Yangtze River, is a typical ecological functional and fragile area in ...
GOU Qiantao, WU Han, XIE Xianjian
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Effects of Interplanting Medicinal Herbs on Runoff, Sediment and Nitrogen and Phosphorus Losses in Young Oil Tea Plantation on Red Soil Sloping Field [PDF]
[Objective] To investigate the effects and applicability of different intercropping patterns of medicinal herbs on water, soil, and nutrient losses in young oil tea gardens on red soil slopes. [Methods] Runoff plot experiments were carried out in Jiangxi
DUAN Jian +4 more
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A New Method to Estimate the Cover Management Factor on the Loess Plateau in China [PDF]
[Objective] To investigate the combined effect of crop cover and crop management practices on preventing soil loss and improving the accuracy of C-factor estimation. [Methods] Six millet plots with different treatments, i.
LI Qinglan +4 more
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Evaluation of Ecosystem Services and Tradeoff and Synergy in the Alpine and Canyon Region of Southwest China Based on Multi-source Geographic Data [PDF]
[Objective] The alpine and canyon region of Southwest China is a crucial ecological security barrier within the national “Three Zones and Four Belts” strategy, and it plays an essential role in ensuring national ecological security and promoting regional
GUAN Yinghui +4 more
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Predicting Multi-Scenario Land Use Changes and Soil Erosion in the Huaihe River Basin Based on Coupled PLUS-CSLE Model [PDF]
[Objective] Understanding the future temporal and spatial evolution of land use and soil erosion in the Huaihe River Basin is of significant importance for rational and coordinated use of land resources, formulating future soil and water conservation ...
CHEN Lei +8 more
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Shuitu Baochi Xuebao, 2023 为探究喀斯特地区土壤侵蚀、石漠化协同演变规律、驱动因子及主要驱动因子下二者交互关系。采用优化后的RUSLE模型估算贵州省喀斯特地区2005—2015年土壤侵蚀,并利用贵州省全国石漠化普查数据库计算同期石漠化状况,运用地理探测器探究驱动因子以及主要驱动因子下二者交互关系。结果表明:2005—2015年贵州省喀斯特地区土壤侵蚀与石漠化均以中度及以下为主,其中土壤侵蚀中度及以下占比58%以上,而中度及以下石漠化占比达80%以上;时间上二者存在发生时间的异同性,但研究期间,二者均不同程度地趋于好转 ...
何茂林 +4 more
doaj
Shuitu Baochi Xuebao[目的] 为了探究RUSLE模型对黄土高原退耕植被恢复坡面土壤侵蚀模拟的效果。[方法] 基于陕北安塞区坊塌小流域内10个径流小区2016—2022年的降雨产流产沙监测资料,通过RUSLE模型中各因子在黄土高原的不同常用算法之间的变换组合,模拟144种因子组合下各退耕植被恢复坡面的土壤侵蚀量,采用纳什效率系数(NSE)和均方根误差(RMSE)评价模型模拟结果的有效性。[结果] 利用RUSLE模型144种因子组合模拟的退耕植被恢复坡面土壤侵蚀量,NSE范围为-38.47~0.19,RMSE范围为1.92 ...
廖俊 +4 more
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, 2020 黄土高原土壤侵蚀严重，是世界上水土流失最严重的地区。防治土壤侵蚀、改善黄土高原生态环境已成为亟待解决的重大环境问题。黄土高原地形复杂，沟壑纵横，特殊的自然环境为水土流失营造了绝佳的侵蚀条件。为治理严重的水土流失，国家在该地区实施了退耕还林（草）、坡改梯、治沟打坝等一系列植被和工程措施。这些措施使得黄土高原的土地利用/土地覆被格局发生了显著变化。同时，大规模的植被恢复特别是1999年退耕还林(草)工程实施后，黄土高原的植被覆盖度呈显著的上升趋势，入黄泥沙减少，土壤侵蚀强度锐减 ...
刘宇林
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Shuitu Baochi Xuebao[目的] 秦岭—大巴山地(秦巴山地)是我国重要的南北地理—生态过渡带主体,对秦巴山地的土壤侵蚀研究将有助于该区域的生态保护和水土资源管理。[方法] 基于RUSLE模型计算秦巴山地的土壤侵蚀模数,并量化分析了该区域的土壤侵蚀的时空分布格局。[结果] (1)2000—2020年秦巴山地的微度侵蚀面积呈上升趋势,轻度侵蚀及其以上等级的土壤侵蚀面积均呈下降趋势;从空间来看,秦巴山地东北和西南部的土壤侵蚀等级较高,中间较低;(2)秦巴山地的土壤侵蚀相对集中在500~1 500 m、坡度15°~25°区域内;(3 ...
王丽园 +3 more
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IMPACT OF CLIMATE CHANGE ON THE EROSION CAPACITY IN THE CHIRCHIK RIVER BASIN
, 2020 21 世纪可持续发展面临着世界人口过度增长的严峻挑战。不可再生的土地资源作为人类活动的基础，随着农业发展价值急剧增加。为满足对土地资源日益增长的需求，人类大量消耗水资源开发新土地，导致了植被覆盖度的减少、森林的丧失、肥沃土壤的侵蚀, 以及水文过程的急剧变化。奇尔奇克河流域 (CHAB) 位于乌兹别克斯坦东北部, 在天山山脉西部与锡尔河之间，面积为 15300 平方公里，被确定为农业可持续发展区域。然而该地区土地开发中，发生了土壤侵蚀过程。塔什干地区的大部分区域为山麓平原。在北部和东北部 ...
KHUSEN SHIRINOVICH GAFFOROV
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