LI Jinlin, WEI Jie. Types, Structure and Utilization of Fieldridges on Sloping Farmland in Three Gorges Reservoir Region, China[J]. Bulletin of Soiland Water Conservation, 2017, 37(1): 229-233.
DOI:
LI Jinlin, WEI Jie. Types, Structure and Utilization of Fieldridges on Sloping Farmland in Three Gorges Reservoir Region, China[J]. Bulletin of Soiland Water Conservation, 2017, 37(1): 229-233. DOI: 10.13961/j.cnki.stbctb.2017.01.041.
Types, Structure and Utilization of Fieldridges on Sloping Farmland in Three Gorges Reservoir Region, China
[Objective] The objective of the study is to analyze the types
structure and functions of various extant fieldridges on farmlands and their application in practice
in order to provide support for planning and designing high standard basic farmlands in the Three Gorges Reservoir area. [Methods] The analysis was done through field investigation and literature reviews. [Results] (1) According to used materials
fieldridges could be classifyied into four types including stone fieldridge
soil fieldridge
soil-stone fieldridge and cement brick fieldridge. The fieldridge pattern could also be categorized into four types including combination of fieldridge and ditches
fieldridge with lynchet
fieldridge without lynchet and irregular fieldridge. In terms of functions
fieldridges include the fieldridge for walking
the fieldridge as a boundary of land ownership
and for the soil conservation. (2) The structure of extant fieldridges varies on sloping farmlands in the Three Gorges Reservoir area. Usually
the main functions and purposes of the fieldridges depend on their structures. For example
the upper-soil-bottom-stone fieldridges were used to establish hedgerow in most places where the high quality cultivated land was deficient
and the bottom soil-upper stone fieldridges were mainly used as a path for farming. (3) The proportion of soil fieldridges and stone fieldridges was about 65% and 15%
while the total of soil-stone fieldridges and cement brick fieldridges was about 8%. In addition
about 10% of sloping farmlands has no fieldridges in the Three Gorges Reservoir area. [Conclusion] The fieldridges with various types and structures are formed on sloping farmlands in the Three Gorges Reservoir area in the context of the specific geomorphologic features and complicated human-land relation
and different structures result in functional diversity of fieldridges. Currently
soil fieldridge has higher ratio and usage in the Three Gorges Reservoir area. The soil-stone fieldridge with merits of both soil bund and stone fieldridge
is a new widely used fieldridge in the Three Gorges Reservoir area. In the future
more focus should be put on the structure optimization
and popularizing this new fieldridge in sloping farmland consolidation and high standards basic farmland construction.
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references
Teshome A, Rolker D, de Graaff J.Financial viability of soil and water conservation technologies in Northwestern Ethiopian highlands[J]. Applied Geography, 2013,37:139-149.
Taye G, Poesen J, Vanmaercke M, et al. Evolution of the effectiveness of stone bunds and trenches in reducing runoff and soil loss in the semi-arid Ethiopian highlands[J]. Zeitschrift Für Geomorphologie, 2015,59(4):477-493.
Nyssen J, Poesen J, Gebremichael D, et al. Interdisciplinary on-site evaluation of stone bunds to control soil erosion on cropland in Northern Ethiopia[J]. Soil & Tillage Research, 2007,94(1):151-163.
Amare T, Zegeye A D, Yitaferu B, et al. Combined effect of soil bund with biological soil and water conservation measures in the northwestern Ethiopian highlands[J]. Ecohydrology & Hydrobiology, 2014,14(3):192-199.
Sabita G. The Effect of Rural Land Registration and Certification Programme on Farmers' Investments in Soil Conservation and Land Management in the Central Rift Valley of Ethiopia[D]. Wageningen: Wageningen University, 2010.
Huang Hanchen, Liu Chenwuing, Chen Shihkai, et al. Analysis of percolation and seepage through paddy bunds[J]. Journal of Hydrology, 2003,284(1):13-25.
Janssen M, Lennartz B. Water losses through paddy bunds: Methods, experimental data, and simulation studies[J]. Journal of Hydrology, 2009,369(1):142-153.
Vancampenhout K, Nyssen J, Gebremichael D, et al. Stone bunds for soil conservation in the Northern Ethiopian highlands: Impacts on soil fertility and crop yield[J]. Soil & Tillage Research, 2006,90(1):1-15.
Taye G, Poesen J, Wesemael B V, et al. Effects of land use, slope gradient, and soil and water conservation structures on runoff and soil loss in semi-arid Northern Ethiopia[J]. Physical Geography, 2013,34(3):236-259.
Zhang J H, Wang Y, Zhang Z H. Effect of terrace forms on water and tillage erosion on a hilly landscape in the Yangtze River Basin, China[J]. Geomorphology, 2014,216(7):114-124.