Study of the Morphological Characteristics of Cultivated Land in Semiarid Sandy Areas
Author:
Zhao Xiangyu1, Yan Wenzhi1, Wang Kaige1, Xu Yan12, Zheng Huihui1, Sang Zhiting1
Affiliation:
1. College of Land Science and Technology, China Agricultural University, Beijing 100193, China 2. Key Laboratory of Agricultural Land Quality and Monitoring of Nature Resource, Beijing 100193, China
Abstract
The unique natural geographical conditions and land use patterns in semiarid sandy areas have resulted in a distinct cultivated landscape. Identifying and classifying the morphological characteristics of cultivated land are key to improving land utilization efficiency. This study focuses on the semiarid sandy areas of China. We obtained information on cropland morphology by judging high-precision remote sensing images and landscape pattern analysis, and then determined the spatial clustering characteristics of different plot morphologies through local spatial autocorrelation analysis. The results are as follows: cultivated land can be classified into five main types: simple large plots, complex large plots, simple small plots, complex small plots, and scattered plots, and there are significant differences in morphology between eastern and western plots. In addition, different morphology types of plots formed a variety of aggregation patterns; clustered plots are surrounded by scattered plots, showing a staggered distribution pattern. Farmers and land managers can make more informed decisions regarding irrigation, fertilization, and crop selection, and this knowledge can provide a basis for further optimizing the layout of cultivated land, identifying fragmented cultivated land, and scientifically recovering farmland to ensure more scientific and refined classification management and zoning protection of cultivated land.
Funder
National Natural Science Foundation of China Special Scientific Research of the Ministry of Land and Resources of China—Key Technology and Demonstration based on Protective Development of Sandy Land in Inner Mongolia
Subject
Nature and Landscape Conservation,Ecology,Global and Planetary Change
Reference43 articles.
1. Ntihinyurwa, P.D., and de Vries, W.T. (2021). Farmland fragmentation, farmland consolidation and food security: Relationships, research lapses and future perspectives. Land, 10. 2. China must Protect High—Quality Arable Land: Figures from a National Survey of Land Use Seem Positive, but the Effort Exposed some Worrying Trends;Kong;Nature,2014 3. Can economic and environmental benefits associated with agricultural intensification be sustained at high population densities? A farm level empirical analysis;Willy;Land Use Policy,2019 4. Moran, E., Ojima, D.S., Buchmann, B., Canadell, J.G., Coomes, O., Graumlich, L., Jackson, R., Jaramillo, V., Lavorel, S., and Leadley, P. (2005). Global Land Project: Science Plan and Implementation Strategy, IGBP Secretariat. 5. Comparing the determinants of cropland abandonment in Albania and Romania using boosted regression trees;Sikor;Agric. Syst.,2013
|
|