Results 31 to 40 of about 27,854 (311)

Land Cover Change in Northern Botswana: The Influence of Climate, Fire, and Elephants on Semi-Arid Savanna Woodlands

Land, 2017
Complex couplings and feedback among climate, fire, and herbivory drive short- and long-term patterns of land cover change (LCC) in savanna ecosystems.
John Tyler Fox, Mark E. Vandewalle, Kathleen A. Alexander   +2 more
doaj   +1 more source

Analysing the Drivers of Cropland Footprint in Leading Agricultural Nations: Evidence From MMQR Approach

Geological Journal, EarlyView.
ABSTRACT Climate change represents the biggest current challenge for us and for future generations. Its impact on agriculture is undeniable, considering the food security goal. Thus, the cropland footprint has been distinguished as a comprehensive index for assessing the impact of environmental changes in agricultural areas determined by the increased ...
Ibrahim Cutcu, Magdalena Radulescu
wiley   +1 more source

Seasonal drivers of plant–soil–microbial community structure and functions in Western Himalayan grasslands, Pakistan

Grassland Research, EarlyView.
Plant species richness was greater in summer in both alpine and subalpine grassland ecosystems. Soil moisture demonstrates significant positive correlations with soil organic carbon and total nitrogen across seasonal periods. Microbial α‐diversity peaks during summer but maintains functional stability across seasons.
Huma Ali, Muhammad Rafiq, Allan Degen, Ben Sparrow, Zhanhuan Shang   +4 more
wiley   +1 more source

Identifying Categorical Land Use Transition and Land Degradation in Northwestern Drylands of Ethiopia

Remote Sensing, 2016
Land use transition in dryland ecosystems is one of the major driving forces to landscape change that directly impacts the welfare of humans. In this study, the support vector machine (SVM) classification algorithm and cross tabulation matrix analysis ...
Worku Zewdie, Elmar Csaplovics
doaj   +1 more source

An Economic Analysis on the Transition to Dryland Production in Deficit-Irrigated Cropping Systems of the Texas High Plains

Frontiers in Sustainable Food Systems, 2021
The objective of this analysis was to integrate hydrologic, agronomic, and economic methods to evaluate various management strategies by changing crop acreage to better manage the declining resources of the Ogallala aquifer.
Donna Mitchell-McCallister, Donna Mitchell-McCallister, Rebecca McCullough, Phillip Johnson, Ryan Blake Williams   +4 more
doaj   +1 more source

Evaluation of sunn hemp performance and nutritive value in Maine, USA

Grassland Research, EarlyView.
Abstract Background Sunn hemp (Crotalaria juncea L. and Crotalaria ochroleuca G. Don) was evaluated as a warm‐season legume to mitigate the “summer slump” in Maine's forage production caused by heat and moisture deficit stress. Methods This study compared three cultivars: “Crescent Sunn,” “Loei,” and “Red Mini,” at 60 and 90 days after seeding over the
Jaime Garzon, Edgar Cardenas
wiley   +1 more source

Energy Compensation for Crop Growth under Plastic Mulching: Theories, Models, and Limitations

Agronomy
Plastic film mulching (PM) is a useful agronomic means to adapt to the environmental conditions of dryland agriculture and improve crop production. To improve the theoretical framework of PM technology, this study focuses on the interaction between the ...
Dianyuan Ding, Ting Li, Lihong Wu, Xi Zhang, Ying Zhao, Hao Feng, Chao Zhang, Ole Wendroth   +7 more
doaj   +1 more source

Evaluation of Three MODIS-Derived Vegetation Index Time Series for Dryland Vegetation Dynamics Monitoring

Remote Sensing, 2015
Understanding the spatial and temporal dynamics of vegetation is essential in drylands. In this paper, we evaluated three vegetation indices, namely the Normalized Difference Vegetation Index (NDVI), the Soil-Adjusted Vegetation Index (SAVI) and the ...
Linlin Lu, Claudia Kuenzer, Cuizhen Wang, Huadong Guo, Qingting Li   +4 more
doaj   +1 more source

Sewage Sludge and Cashew Bagasse Biochars Promote Changes in Selected Physical Attributes Related to the Structure of Degraded Dryland Soil

Journal of Plant Nutrition and Soil Science, EarlyView.
This study evaluated biochars from co‐pyrolysis of sewage sludge and cashew residues on physical quality of a degraded loamy sand soil. SPB applied at 20 Mg ha−1 reduced bulk density by 7.74%, whereas most porosity attributes were driven by soil reconsolidation rather than biochar. Aggregate stability varied with biochar type, with SPB promoting larger
João Marcos Rodrigues dos Santos, Ícaro Vasconcelos do Nascimento, Gilvanete da Silva Henrique, Tiago da Costa Dantas Moniz, Francisco Luan Almeida Barbosa, Alexandre dos Santos Queiroz, Adriana Guirado Artur, Mirian Cristina Gomes Costa, Helon Hébano de Freitas Sousa, Odair Pastor Ferreira, Laís Gomes Fregolente, Antônio Gomes de Souza Filho, Romildo Lopes de Oliveira Filho, Arthur Prudêncio de Araujo Pereira, Jaedson Cláudio Anunciato Mota   +14 more
wiley   +1 more source

Habitat suitability of biocrust communities in a cold desert ecosystem

Ecology and Evolution
Drylands are unique among terrestrial ecosystems in that they have a significant proportion of primary production facilitated by non‐vascular plants such as colonial cyanobacteria, moss, and lichens, i.e., biocrusts, which occur on and in the surface ...
Sarah N. Power, Valerie A. Thomas, Mark R. Salvatore, John E. Barrett   +3 more
doaj   +1 more source