干旱区生态环境知识资源中心(Arid): Assessing land degradation neutrality in semi-arid dryland agroecosystems of the matabeleland North province of Zimbabwe

Arid

DOI	10.1007/s12145-024-01384-6
	Assessing land degradation neutrality in semi-arid dryland agroecosystems of the matabeleland North province of Zimbabwe
	Chisadza, Bright; Gwate, Onalenna; Musinguzi, Simon Peter
通讯作者	Chisadza, B
来源期刊	EARTH SCIENCE INFORMATICS
ISSN	1865-0473
EISSN	1865-0481
出版年	2024
英文摘要	Semi-arid agroecosystems are crucial for food security and ecosystem services, but land degradation threatens their sustainability. This study assessed land degradation neutrality (LDN) in a semi-arid agroecosystem of Matabeleland North Province, Zimbabwe, leveraging trends.earth within QGIS and data from the European Space Agency Climate Change Initiative (1992-2020). We analysed land use/land cover (LULC), soil organic carbon (SOC), and land productivity to identify areas of degradation and stability. Additionally, we simulated 2050 land-use/land-cover maps using a cellular automata model within a GIS framework assuming a business-as-usual scenario. The model considered the 2015 LULC map as a baseline along with environmental variables such as the digital elevation model and slope. While historical trends (1992-2020) showed a decrease in bare areas (-71%) and an increase in settlements (+ 163%), cellular automata modeling predicted a concerning future trajectory with further expansion of bare land (+ 238%) and settlements (+ 72%) by 2050, alongside a decline in water bodies (-23%) and forests (-3.5%). Notably, around 26.5% of the land exhibited degradation, often linked to low SOC levels in croplands, while 59.55% remained stable over the study period. However, caution is necessary as increases in greenness may not always reflect positive restoration. Land cover transitions, particularly the conversion of forests to grasslands and settlements, emerged as potential drivers of degradation, likely leading to ecosystem service loss, habitat fragmentation, and potentially exacerbating the impacts of climate change. These findings highlight the urgent need for targeted restoration and land management strategies focused on improving SOC levels in croplands and conserving vital forest and grassland ecosystems to achieve LDN in this semi-arid region. Further research is needed to quantify specific degradation drivers, assess the effectiveness of intervention strategies, and explore the socio-economic dimensions of land degradation and LDN efforts.
英文关键词	Soil organic carbon Semi-arid areas Land productivity SDG15
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001252532200001
WOS关键词	COVER ; MATRIX ; RIVER ; AREA
WOS类目	Computer Science, Interdisciplinary Applications ; Geosciences, Multidisciplinary
WOS研究方向	Computer Science ; Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/403313
推荐引用方式 GB/T 7714	Chisadza, Bright,Gwate, Onalenna,Musinguzi, Simon Peter. Assessing land degradation neutrality in semi-arid dryland agroecosystems of the matabeleland North province of Zimbabwe[J],2024.
APA	Chisadza, Bright,Gwate, Onalenna,&Musinguzi, Simon Peter.(2024).Assessing land degradation neutrality in semi-arid dryland agroecosystems of the matabeleland North province of Zimbabwe.EARTH SCIENCE INFORMATICS.
MLA	Chisadza, Bright,et al."Assessing land degradation neutrality in semi-arid dryland agroecosystems of the matabeleland North province of Zimbabwe".EARTH SCIENCE INFORMATICS (2024).