中国政策档案 Governance Archive HOLDINGS 191,882 · FONDS 70
Record · 深圳市水务局 ACC. 9304645

2020 Statistical Table of Soil Erosion Area by Watershed in Shenzhen

2020年深圳市各流域水土流失面积统计表

Issuer
深圳市水务局
Date
2021-11-01 16:15:05
Instrument
other
Cited by
0
This document provides a statistical breakdown of soil erosion areas across six watersheds and six water systems in Shenzhen for 2020, detailing erosion intensity levels and identifying the Chishi River Basin in the Shenshan Special Cooperation Zone as the most severely affected.
Full text · 原文 577 字
深圳市共划分为6个流域、6个水系。2020年,各流域(水系)中水土流失面积绝对值和水土流失量最大的均为深汕特别合作区赤石河流域,其次为龙岗河流域和茅洲河流域。另外,鲘门水系、深圳河流域和赤石河流域内强烈级及以上水土流失面积占比较大,水土流失形势严峻。 表1 2020年深圳市各流域(水系)水土流失面积统计表流域(水系)侵蚀面积(km2)各级强度等级土壤侵蚀面积(km2)轻度中度强烈极强烈剧烈龙岗河流域7.844.960.821.550.460.05茅洲河流域7.034.211.161.120.530.01珠江口水系5.543.300.981.020.240.00深圳湾水系4.033.300.230.370.060.07观澜河流域4.962.890.800.850.300.12大亚湾水系3.101.680.850.370.140.06深圳河流域2.511.090.510.520.380.01大鹏湾水系2.281.230.410.540.090.01坪山河流域1.831.150.230.270.180.00赤石河流域17.429.402.932.851.900.34小漠水系0.640.410.070.110.050.00鲘门水系0.840.210.200.230.010.19合 计58.0233.839.199.804.340.86