Soil Particle Settlement Sorting and Distribution Characteristics of Carbon, Nitrogen and Salt During Gradual Thawing [PDF]
[Objective] The classification of sediment particles and the accompanying distribution characteristics of carbon, nitrogen and salt in the process of soil thawing layer by layer under snowmelt runoff scenario were analyzed in order to identify the ...
Hu Yaxian +5 more
core +1 more source
Nutrient Characteristics and Factors Influencing Surface Soil with Gully Erosion on Sloping Farmland for Low Hilly Terrain in Black Soil Area [PDF]
[Objective] The soil nutrient characteristics and influencing factors of surface soil gully erosion for low hilly terrain in the black soil area were studied in order to provide data and theoretical support for the rational use of land resources ...
He Xuyang +7 more
core +1 more source
分析了黑土腐殖质、黑土母质、黑土区气候、地貌、植被及人类开垦等活动与黑土侵蚀之间的关系,指出了黑土区农业开垦与耕作是导致黑土流失的主要原因,同时,在人类干预条件下,某些自然因素对黑土加速侵蚀的影响就会明显地凸现出来。实际上,黑土区独特的自然环境与人类活动方式已经使其成为目前中国土壤侵蚀潜在危险性最大的地区之一。目前,黑土流失速度相当快.不少地区已经出现了成土母质露于地表的现象,土壤侵蚀严重。如果我们现在还不能正确认识黑土地治理的紧迫性,黑土区很快就将变为名副其实的“不毛之地”了。
范昊明 蔡强国 王红闪
doaj +3 more sources
Global Research Progress Regarding Gully Erosion from 1991 to 2020 [PDF]
[Objective] The international research situation, current research status, and trends in research hotspots in the field of gully erosion at home and abroad from 1991 to 2020 were analyzed, and the development trends of gully erosion measurement ...
Duan Shengdan +5 more
core +1 more source
Effects of Elevated Temperature and CO2 Enrichment on Stability of Soil Organic Carbon Storage in Mollisols [PDF]
[Objective] The effects of climate change on the stability of organic carbon were revealed from the perspective of the molecular structure of organic carbon in order to provide a theoretical basis for clarifying the impact of future climate change on ...
Feng Qian +6 more
core +1 more source
[目的] 土壤侵蚀阻力反映了土壤抵抗侵蚀的性能,包括细沟可蚀性(Kr)和土壤临界剪切力(τc)。通过水槽冲刷试验探究不同土地利用类型下土壤侵蚀阻力差异及其主控因素,为揭示东北黑土区土壤侵蚀动力机制提供理论基础。[方法] 在黑龙江省嫩江市鹤山农场鹤北小流域选取7种典型的土地利用类型,利用水槽冲刷试验测定土壤分离能力,拟合了Kr和τc,采用相关分析和偏最小二乘回归方法,确定影响土壤侵蚀阻力的主要因素。[结果] (1)不同土地利用类型样地Kr为0.003~0.372 s/m,道路Kr最高,与农地相比,草地 ...
张宁, 张光辉, 邢书昆
doaj +1 more source
Mejores prácticas de manejo para el uso optimizado del suelo y el agua en la agricultura [PDF]
Chinese translation: Yun Xie, Lixin Chen, Jie Tang, Zhaoqi Fu, Meng Zhang, Hanlin Dong.English version available at http://dx.doi.org/10.20350/digitalCSIC/13964Spanish version available at http://dx.doi.org/10.20350/digitalCSIC/13985在Shui项目框架下 ...
Chen, L. +9 more
core +1 more source
水和土地是人类赖以生存的根基和最重要的农业资源。中国东北黑土区是世界仅存三大黑土带之一,拥有地球上最珍贵的土地资源。近年来,该区域水土流失问题日趋严重,引起了广泛关注和高度重视。对这一问题的治理,也已纳入中央和地方政府的重要日程。Master of Public ...
刘国民 Liu, Guo Min +2 more
core +1 more source
Factors Influencing Spatial and Temporal Characteristics of Organic Carbon Loading to Rivers From Sediment in Small Watersheds in Sugarcane Areas [PDF]
[Objective] The spatial and temporal characteristics and influencing factors of soil organic carbon loss from sugarcane in a typical small watershed in the red soil area of Guangxi Zhuang Autonomous Region were determined, and the spatial and temporal ...
Chen Tingting +8 more
core +1 more source
Ecological Protection Effects Provided by Sand Barriers in a Grassland Mining Area [PDF]
[Objective] The wind protection effectiveness of different sand barriers and their effects on surface soil particle size composition, soil nutrients and vegetation growth werer studied in order to provide a theoretical basis for the optimal selection of ...
Cong Longyu +5 more
core +1 more source

