Characteristics of soil quality attributes under different agroecosystems and its implications for agriculture in the Choke Mountain watershed in Ethiopia  

作　　者：Demeku MESFIN Engdawork ASSEFA Belay SIMANE 

机构地区：[1]College of Development Studies,Center for Environment and Development,Addis Ababa University,Addis Ababa 1000,Ethiopia [2]College of Social Science and Humanities,Department of Geography and Environmental Studies,Wolaita Sodo University,Wolaita Sodo 4620,Ethiopia

出　　处：《Frontiers of Agricultural Science and Engineering》2024年第2期303-313,共11页农业科学与工程前沿（英文版）

摘　　要：Awareness of how soil properties vary over agroecosystems(AES) is essential for understanding soil potentials and improving site-specific agricultural management strategies for a sustainable ecosystem. This study examined the characteristics of soil quality attributes and implications for agriculture in the Choke Mountain watershed in Ethiopia. Forty-seven composite soil samples(0–20 cm deep) were collected from lowland and valley fragmented(AES 1),midland plain with black soil(AES 2), midland plain with brown soil(AES 3),sloppy midland land(AES 4), and hilly and mountainous highlands(AES 5).Ten of 15 soil quality properties were significant(P < 0.05 or 0.01), including silt, exchangeable bases, cation exchange capacity, percent base saturation,p H, organic matter, total nitrogen and available phosphorous(P) across the five AES. However, all properties were variable with coefficients of variation from 7%(total porosity) to 169%(available P) across the AES. Although AES 2and 3 are affected by waterlogging and acidity, these two have better prospects for agriculture, but AES 1, 4, and 5 are unsuitable for agriculture because of soil erosion. Therefore, appropriate and applicable soil management strategies, particularly lime application and organic fertilizer, are fundamental to reversing soil acidity and improving soil fertility.

关 键 词：AGROECOSYSTEM Choke Mountain watershed coefficients of variation Ethiopia soil quality indicator 

分 类 号：S158[农业科学—土壤学]