数字农科院2.0

A Geospatial Livestock-Carrying Capacity Model (GLCC) in the Akmola Oblast, Kazakhstan

文献类型： 外文期刊

作者： Qi, Jiaguo;Lin, Zihan;Weltz, Mark A.;Spaeth, Kenneth E.;Iskakova, Gulnaz;Nesbit, Jason;Toledo, David;Yespolov, Tlektes;Kussainova, Maira;Makhmudova, Lyazzat K.;Xin, Xiaoping

作者机构：

关键词： remote sensing;livestock-carrying capacity (LCC);geospatial modeling;rangeland management;climate variability;food security;spatial analysis;Kazakhstan;vegetation monitoring;sustainable agriculture

期刊名称： REMOTE SENSING

ISSN：

年卷期： 2025 年 17 卷 8 期

页码：

收录情况： SCIE（2025版） ; ; EI（2025版）

摘要： Spatial disparities in rangeland conditions across Kazakhstan complicate field-based assessments of livestock-carrying capacity (LCC), a critical metric for the country's food security and economic planning. This study developed a geospatial livestock-carrying capacity (GLCC) modeling framework to quantify LCC spatio-temporal dynamics at the Oblast level, by integrating satellite-derived data on vegetation, water resources, and terrain with in situ measurements. By providing ground-truth observations and contextual detail, field-based measurements complement remote sensing data and help to validate estimates and improve the reliability of the GLCC model. The modeling framework was successfully applied and validated in a case study in the Akmola Oblast, Kazakhstan, to specifically map the spatial and temporal distributions of LCC, using publicly available MODIS NPP data and in situ data from 51 field sites. The modeling results showed distinct spatial patterns of LCC across the Oblast, reflecting variability in rangeland productivity with higher values concentrated in southern and southeastern regions (up to 0.5 animals/ha). The results also depicted significant interannual LCC fluctuations (ranging from 0.099 to 0.17 animals/ha) possibly due to rainfall variability, and thus an indicator of climate-related risks for livestock management. Although there is still room for further improvement, particularly in model parameterization to account for grazing pressures, forage quality, and livestock species, the GLCC modeling framework represents a simple modeling tool to map livestock-carrying capacity, a more meaningful indicator to rangeland managers. Further, this work underscores the value of integrating remote sensing with field-based observations to support data-driven rangeland management planning and resilient investment strategies.

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