ประโยคภาษาจีน : 中文句子 |
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nóng tián 农田 jìng liú 径流 hé 和 qīn shí 侵蚀 ní shā 泥沙 shì 是 lín 磷 jìn rù 进入 guān tīng shuǐ kù 官厅水库 de 的 zhǔ yào 主要 fēi 非 diǎn 点 wū rǎn yuán 污染源 |
Runoff and soil losses from agricultural fields were investigated as the major non-point sources of phosphorus (P) entering Guanting Reservoir. |