研究对比农业生态环境中不同土地利用和管理方式下的土壤养分平衡和储存情况

IF 5 3区农林科学 Q1 SOIL SCIENCE

Soil Use and Management Pub Date : 2023-12-10 DOI:10.1111/sum.13000

Temesgen Mulualem, Enyew Adgo, Derege T. Meshesha, Atsushi Tsunekawa, Nigussie Haregeweyn, Mitsuru Tsubo, Kindiye Ebabu, Misganaw Walie, Birhanu Kebede, Genetu Fekadu, Simeneh Demissie, Gizachew A. Tiruneh, Mulatu L. Berihun

{"title":"研究对比农业生态环境中不同土地利用和管理方式下的土壤养分平衡和储存情况","authors":"Temesgen Mulualem, Enyew Adgo, Derege T. Meshesha, Atsushi Tsunekawa, Nigussie Haregeweyn, Mitsuru Tsubo, Kindiye Ebabu, Misganaw Walie, Birhanu Kebede, Genetu Fekadu, Simeneh Demissie, Gizachew A. Tiruneh, Mulatu L. Berihun","doi":"10.1111/sum.13000","DOIUrl":null,"url":null,"abstract":"Agricultural sustainability and land degradation can be monitored through studying soil nutrient dynamics. This study was conducted to investigate the balance and stocks of nitrogen (N) and phosphorus (P) under major land use types and land management (LM) practices in three contrasting agro-ecological environments in Ethiopia. We employed a nutrient monitoring approach and assessed soil N and P inputs and outputs at watershed and plot scales. Field data were collected from 72 sites representative of the major land uses of the three watersheds for the watershed-scale analysis. In addition to the watershed data, 16 experimental runoff plots were established and the response of nutrient balances to improved LM practices for the major land uses, including cropland with three treatments (control, farmyard manure [FYM], and soil bund), grazing land with three treatments (control, exclosure, and FYM + exclosure), and bushland with two treatments (control and exclosure). Nutrient balances, flows, and stocks varied significantly among agro-ecological settings, land use types, and LM practices. Severe and negative N balances were found in all agro-ecological environments, with midland (-70.8) > highland (-61.7) > lowland (-50.3 kg ha−1 yr−1), whereas slightly positive P balances were found in all agro-ecosystems. As a result, the midland (4.2% yr−1) and highland (2.1% yr−1) sites had greater N depletion rates than the lowland site (1.0% yr−1). Our results also demonstrated that applied LM practices improved N balances: by 32–40% in cropland through FYM and mineral fertilizer, by 7–18% in grazing land via FYM and exclosure, and by 6–36% in degraded bushland via exclosure, implying that, implementing FYM and mineral fertilizer for cropland and implementing FYM with exclosure on non-croplands can reverse nutrient depletion in the study sites and in other areas having similar agro-ecological conditions.","PeriodicalId":21759,"journal":{"name":"Soil Use and Management","volume":"17 1","pages":""},"PeriodicalIF":5.0000,"publicationDate":"2023-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Examining soil nutrient balances and stocks under different land use and management practices in contrasting agro-ecological environments\",\"authors\":\"Temesgen Mulualem, Enyew Adgo, Derege T. Meshesha, Atsushi Tsunekawa, Nigussie Haregeweyn, Mitsuru Tsubo, Kindiye Ebabu, Misganaw Walie, Birhanu Kebede, Genetu Fekadu, Simeneh Demissie, Gizachew A. Tiruneh, Mulatu L. Berihun\",\"doi\":\"10.1111/sum.13000\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Agricultural sustainability and land degradation can be monitored through studying soil nutrient dynamics. This study was conducted to investigate the balance and stocks of nitrogen (N) and phosphorus (P) under major land use types and land management (LM) practices in three contrasting agro-ecological environments in Ethiopia. We employed a nutrient monitoring approach and assessed soil N and P inputs and outputs at watershed and plot scales. Field data were collected from 72 sites representative of the major land uses of the three watersheds for the watershed-scale analysis. In addition to the watershed data, 16 experimental runoff plots were established and the response of nutrient balances to improved LM practices for the major land uses, including cropland with three treatments (control, farmyard manure [FYM], and soil bund), grazing land with three treatments (control, exclosure, and FYM + exclosure), and bushland with two treatments (control and exclosure). Nutrient balances, flows, and stocks varied significantly among agro-ecological settings, land use types, and LM practices. Severe and negative N balances were found in all agro-ecological environments, with midland (-70.8) > highland (-61.7) > lowland (-50.3 kg ha−1 yr−1), whereas slightly positive P balances were found in all agro-ecosystems. As a result, the midland (4.2% yr−1) and highland (2.1% yr−1) sites had greater N depletion rates than the lowland site (1.0% yr−1). Our results also demonstrated that applied LM practices improved N balances: by 32–40% in cropland through FYM and mineral fertilizer, by 7–18% in grazing land via FYM and exclosure, and by 6–36% in degraded bushland via exclosure, implying that, implementing FYM and mineral fertilizer for cropland and implementing FYM with exclosure on non-croplands can reverse nutrient depletion in the study sites and in other areas having similar agro-ecological conditions.\",\"PeriodicalId\":21759,\"journal\":{\"name\":\"Soil Use and Management\",\"volume\":\"17 1\",\"pages\":\"\"},\"PeriodicalIF\":5.0000,\"publicationDate\":\"2023-12-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Soil Use and Management\",\"FirstCategoryId\":\"97\",\"ListUrlMain\":\"https://doi.org/10.1111/sum.13000\",\"RegionNum\":3,\"RegionCategory\":\"农林科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"SOIL SCIENCE\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Soil Use and Management","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.1111/sum.13000","RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"SOIL SCIENCE","Score":null,"Total":0}

引用次数: 0

摘要

通过研究土壤养分动态，可以监测农业可持续性和土地退化。本研究旨在调查埃塞俄比亚三种截然不同的农业生态环境中，在主要土地利用类型和土地管理（LM）措施下，氮（N）和磷（P）的平衡和存量。我们采用养分监测方法，在流域和地块尺度上评估土壤氮和磷的输入和输出。为进行流域尺度分析，我们从 72 个代表三个流域主要土地用途的地点收集了实地数据。除流域数据外，还建立了 16 个实验径流地块，并对主要土地用途的养分平衡对改良土地管理方法的响应进行了分析，包括耕地的三种处理方法（对照、农家肥 [FYM] 和土埂）、牧场的三种处理方法（对照、围封和农家肥 + 围封）以及灌木林的两种处理方法（对照和围封）。不同的农业生态环境、土地利用类型和土地管理方法之间的养分平衡、流量和存量差异很大。所有农业生态系统都存在严重的负氮平衡，中地（-70.8）>；高地（-61.7）>；低地（-50.3 kg ha-1 yr-1），而所有农业生态系统都存在轻微的正磷平衡。因此，中地（4.2% yr-1）和高地（2.1% yr-1）的氮耗竭率高于低地（1.0% yr-1）。我们的研究结果还表明，应用 LM 方法可以改善氮平衡：通过施用堆肥和矿物肥料，耕地的氮平衡提高了 32-40%；通过堆肥和围封，牧场的氮平衡提高了 7-18%；通过围封，退化灌木林地的氮平衡提高了 6-36%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Examining soil nutrient balances and stocks under different land use and management practices in contrasting agro-ecological environments

Agricultural sustainability and land degradation can be monitored through studying soil nutrient dynamics. This study was conducted to investigate the balance and stocks of nitrogen (N) and phosphorus (P) under major land use types and land management (LM) practices in three contrasting agro-ecological environments in Ethiopia. We employed a nutrient monitoring approach and assessed soil N and P inputs and outputs at watershed and plot scales. Field data were collected from 72 sites representative of the major land uses of the three watersheds for the watershed-scale analysis. In addition to the watershed data, 16 experimental runoff plots were established and the response of nutrient balances to improved LM practices for the major land uses, including cropland with three treatments (control, farmyard manure [FYM], and soil bund), grazing land with three treatments (control, exclosure, and FYM + exclosure), and bushland with two treatments (control and exclosure). Nutrient balances, flows, and stocks varied significantly among agro-ecological settings, land use types, and LM practices. Severe and negative N balances were found in all agro-ecological environments, with midland (-70.8) > highland (-61.7) > lowland (-50.3 kg ha⁻¹ yr⁻¹), whereas slightly positive P balances were found in all agro-ecosystems. As a result, the midland (4.2% yr⁻¹) and highland (2.1% yr⁻¹) sites had greater N depletion rates than the lowland site (1.0% yr⁻¹). Our results also demonstrated that applied LM practices improved N balances: by 32–40% in cropland through FYM and mineral fertilizer, by 7–18% in grazing land via FYM and exclosure, and by 6–36% in degraded bushland via exclosure, implying that, implementing FYM and mineral fertilizer for cropland and implementing FYM with exclosure on non-croplands can reverse nutrient depletion in the study sites and in other areas having similar agro-ecological conditions.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Soil Use and Management 农林科学-土壤科学

CiteScore

7.70

自引率

13.20%

发文量

审稿时长

3 months

期刊介绍： Soil Use and Management publishes in soil science, earth and environmental science, agricultural science, and engineering fields. The submitted papers should consider the underlying mechanisms governing the natural and anthropogenic processes which affect soil systems, and should inform policy makers and/or practitioners on the sustainable use and management of soil resources. Interdisciplinary studies, e.g. linking soil with climate change, biodiversity, global health, and the UN’s sustainable development goals, with strong novelty, wide implications, and unexpected outcomes are welcomed.