GIS-based Study of Ecological Water Requirement of Vegetation in Inner Mongolia Autonomous Region [PDF]
[Objective] The ecological water requirement (EWR) of vegetation in different typical zones for the rational allocation of water resources in the Inner Mongolia Autonomous Region was analyzed and calculated to provide scientific suggestions for water ...
Ge Zheng +5 more
core +1 more source
Distribution Characteristics and Ecological Risk Assessment of Heavy Metals in Typical Soil Profiles of Muchuan County, Sichuan Province [PDF]
BACKGROUNDSoil is a precious resource for human survival and social development. The quality of the soil environment is impacted by a variety of issues due to the social economy’s rapid expansion, and the issue of heavy metal contamination in farmed land
Bixia LIAO, Ling HE, Wenling SHEN
core +1 more source
Comprehensive Geochemical Evaluation and Influencing Factors of Topsoil Nutrients in a Farming Area of Dabie Mountain in Western Anhui, China [PDF]
Western Anhui is an important precision agricultural area in China, characterized by diverse landforms and multiple soil types. To determine the spatial distribution of soil nutrient elements and their controlling factors, we analyzed 5 nutrient ...
Chao SONG +5 more
core +1 more source
Coupling Relationship Between Soil Erosion Risk and Natural Suitability of Human Settlements in Guyuan City, Ningxia Hui Autonomous Region [PDF]
[Objective] Investigating the coupling relationship between the risk of soil erosion and the natural suitability of human settlements in Guyuan City, Ningxia Hui Autonomous Region provides theoretical support for the prevention and control of soil ...
Cheng Jinhua +4 more
core +1 more source
为揭示退耕对石漠化区露石岩—土界面土壤渗透特性的影响,以典型石漠化坡耕地为对照,选择休闲地、退耕灌草和果园为研究对象,采用环刀法研究了平直、外凸和内凹型露石岩—土界面土壤渗透特性。结果表明:(1)不同退耕类型岩—土界面土壤入渗过程及特征差异较大,从初始入渗率到稳定入渗率衰减幅度在0.350~55.756 mm/min,而不同岩—土界面形状间土壤入渗速率差异较大;(2)不同退耕类型岩—土界面土壤入渗速率的主要影响因素为毛管孔隙度和非毛管孔隙度,初始入渗率、平均入渗率和稳定入渗率均与毛管孔隙度呈极显著负相关(
刘婷婷 +4 more
doaj
湘中山地土壤线虫(Nematoda)生态地理群的研究 [PDF]
作者对湖南南岳衡山和长沙岳麓山土壤线虫进行了两年多的定位研究,共获得18511条土壤线虫标本.经分类鉴定,计有24个种 ...
伍惠生, 张友梅, 王振中
core
Lithology modulates soil priming effect via resource limitations and bacterial community structure
Read the free Plain Language Summary for this article on the Journal blog. Abstract The soil priming effect (PE), triggered by root exudate inputs that stimulates microbial activity and drives significant soil carbon (C) losses in terrestrial ecosystems.
Xinyu Hou +4 more
wiley +1 more source
通过对沙质海岸5种植被类型的土壤物理性状和水源涵养功能的研究,结果表明:(1)混交林和草地的土壤物理性状及贮水能力明显优于纯林地的土壤物理性状;(2 ) 5种植被类型土壤的涵养水源能力大小依次为草地>黑松刺槐混交林>黑松纯林>柽柳林>刺槐纯林;表层土壤高于底层土壤;(3)各植被类型枯落物的饱和持水率在10 5 12 % 4 5 3 6 4 % ,水容量在4 5 833 17t/hm2 之间;刺槐纯林枯落物的水源涵养功能最大;(4) 5种植被类型的涵养水源量在14 76 6 6~1870 38t/hm2 ...
王贵霞 李传荣 许景伟 齐清 王月海 王卫东
doaj +2 more sources
人工藻结皮形成过程中表土非降雨型水分吸收的变化情况 [PDF]
在干旱、半干旱地区,表土非降雨型水分吸收对于植物、生物结皮以及一些小型动物都起着非常重要的作用.本研究对库布齐沙漠中各种水分吸收类型进行了调查,并对人工结皮形成过程中水分吸收的变化进行了跟踪监测.结果发现,在实验区,从空气中吸收的水分占表土水分吸收量的25.07%~39.83%,其主要是通过水汽吸附机制进行.相比之下,表土从深层土壤吸收的水分更多,大约占到水分吸收量的60.17%~74.93%.人工结皮的形成促进了表土水分的吸收,但吸收水分的增加并非在接种后或结皮形成后立即表现出来,而是在结皮形成后 ...
兰书斌 +5 more
core
Effects of Desert Land Cultivation on Soil Aggregate Stability and Carbon Fixation [PDF]
[Objective] The response of soil aggregate stability and organic carbon before and after land reclamation using different land use types were analyzed in order to provide a scientific theoretical basis for wasteland reclamation, vegetation restoration ...
Chen Xue +4 more
core +1 more source

